R&S®RTB2000 Digital Oscilloscope User Manual (=Q@;2) Version 06 User Manual 1333161102
This manual describes the following R&S®RTB2000 models with firmware version 2.101: ● R&S®RTB2002 (1333.1005K02) ● R&S®RTB2004 (1333.1005K04) © 2018 Rohde & Schwarz GmbH & Co. KG Mühldorfstr. 15, 81671 München, Germany Phone: +49 89 41 29 - 0 Fax: +49 89 41 29 12 164 Email: info@rohde-schwarz.com Internet: www.rohde-schwarz.com Subject to change – Data without tolerance limits is not binding. R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG. Trade names are trademarks of the owners. 1333.
R&S®RTB2000 Contents Contents 1 Preface.................................................................................................. 13 1.1 For Your Safety............................................................................................................13 1.2 Documentation Overview........................................................................................... 14 1.2.1 Manuals and Instrument Help................................................................................
R&S®RTB2000 Contents 3.6 Quick Access...............................................................................................................33 3.7 Menu History............................................................................................................... 34 3.8 Getting Help.................................................................................................................35 4 Waveform Setup..........................................................................
R&S®RTB2000 Contents 6.1.1 Zooming in.................................................................................................................... 72 6.1.2 Modifying the Zoom.......................................................................................................74 6.1.3 Zoom Settings............................................................................................................... 75 6.2 Mathematics...................................................................
R&S®RTB2000 Contents 8.1 Mask Testing.............................................................................................................. 119 8.1.1 About Masks and Mask Testing...................................................................................119 8.1.2 Using Masks................................................................................................................120 8.1.3 Mask Window................................................................................
R&S®RTB2000 Contents 11 Network Connections and Remote Operation.................................162 11.1 LAN Connection........................................................................................................ 162 11.2 USB Connection........................................................................................................165 11.2.1 USB TMC.................................................................................................................... 165 11.2.
R&S®RTB2000 Contents 12.3.5 I2C Label List............................................................................................................... 197 12.4 UART / RS232 (Option R&S RTB-K2)...................................................................... 199 12.4.1 The UART / RS232 Interface...................................................................................... 199 12.4.2 UART Configuration....................................................................................
R&S®RTB2000 Contents 14.1.4 Arbitrary Setup Settings.............................................................................................. 247 14.2 Pattern Generator......................................................................................................248 14.2.1 Pattern Selection.........................................................................................................248 14.2.2 Settings for Square Wave Pattern....................................................
R&S®RTB2000 Contents 15.6.1 Zoom........................................................................................................................... 293 15.6.2 Mathematics................................................................................................................294 15.6.3 Reference Waveforms.................................................................................................296 15.6.4 Search.....................................................................
R&S®RTB2000 Contents 15.11.4 UART (Option R&S RTB-K2)...................................................................................... 427 15.11.5 CAN (Option R&S RTB-K3).........................................................................................436 15.11.6 LIN (Option R&S RTB-K3)...........................................................................................452 15.12 Mixed Signal Option (Option R&S RTB-B1)............................................................
R&S®RTB2000 Contents A.5 Structure of a Command Line..................................................................................504 A.6 Responses to Queries.............................................................................................. 505 B Command Sequence and Synchronization..................................... 507 B.1 Preventing Overlapping Execution......................................................................... 507 C Status Reporting System........................
R&S®RTB2000 Preface For Your Safety 1 Preface 1.1 For Your Safety The R&S RTB2000 digital oscilloscope is designed for measurements on circuits that are only indirectly connected to the mains or not connected at all. It is not rated for any measurement category. The instrument is rated for pollution degree 2 - for indoor, dry location use where only non-conductive pollution occurs. Temporary conductivity caused by condensation is possible. The instrument is intended for use in industrial areas.
R&S®RTB2000 Preface Documentation Overview Risk of injury Do not exceed the voltage limits given in Chapter 2.2.1.1, "Input Connectors", on page 21. Risk of instrument damage due to inappropriate operating conditions An unsuitable operating site or test setup can damage the instrument and connected devices. Before switching on the instrument, observe the information on appropriate operating conditions provided in the data sheet.
R&S®RTB2000 Preface Documentation Overview Instrument help The help offers quick, context-sensitive access to the functional description directly on the instrument. Basic safety instructions Contains safety instructions, operating conditions and further important information. The printed document is delivered with the instrument. Instrument security procedures manual Deals with security issues when working with the R&S RTB2000 in secure areas.
R&S®RTB2000 Preface Conventions Used in the Documentation 1.3 Conventions Used in the Documentation 1.3.1 Typographical Conventions The following text markers are used throughout this documentation: Convention Description "Graphical user interface elements" All names of graphical user interface elements on the screen, such as dialog boxes, menus, options, buttons, and softkeys are enclosed by quotation marks. [Keys] Key and knob names are enclosed by square brackets.
R&S®RTB2000 Getting Started Preparing for Use 2 Getting Started 2.1 Preparing for Use 2.1.1 Unpacking and Checking the Instrument 1. Inspect the package for damage. If the packaging material shows any signs of stress, notify the carrier who delivered the instrument. 2. Carefully unpack the instrument and the accessories. 3. Check the equipment for completeness. See section "Delivery contents" on page 17. 4. Check the equipment for damage.
R&S®RTB2000 Getting Started Preparing for Use The instrument can be installed in a 19" rack mount using a rack mount kit. The order number of the rack mount kit is given in the data sheet. The installation instructions are part of the rack mount kit. Risk of injury if feet are folded out The feet can fold in if they are not folded out completely or if the instrument is shifted. This can cause damage or injury. ● Fold the feet completely in or out to ensure stability of the instrument.
R&S®RTB2000 Getting Started Preparing for Use The nominal ranges are: ● 100 V to 240 V AC at 50 Hz to 60 Hz ● 0.95 A to 0.5 A ● max. 60 W Risk of injury Connect the instrument only to an outlet that has a ground contact. Do not use an isolating transformer to connect the instrument to the AC power supply. 1. Connect the power cable to the AC power connector on the rear panel of the R&S RTB2000. 2. Connect the power cable to the socket outlet. 3.
R&S®RTB2000 Getting Started Instrument Tour To shut down the instrument to standby state ► Press the [Standby] key. All current settings are saved, and the software shuts down. Now it is safe to power off the instrument. 2.1.3.3 Powering Off Powering off is required only if the instrument must be disconnected from all power supplies. 1. If the instrument is running, press the [Standby] key on the front panel to shut down the instrument. 2.
R&S®RTB2000 Getting Started Instrument Tour Figure 2-1: Front panel of R&S RTB2004 with 4 input channels 1 2 3 4 5 6 7 8 9 10 2.2.1.
R&S®RTB2000 Getting Started Instrument Tour BNC inputs (4 and 5) The R&S RTB2000 has two or four channel inputs (4) to connect the input signals. The external trigger input (5) is used to control the measurement by an external signal. The trigger level can be set from -5 V to 5 V. The input impedance of all BNC inputs is 1 MΩ. Risk of electrical shock - maximum input voltages The maximum input voltage on channel inputs must not exceed 400 V (peak) and 300 V (RMS).
R&S®RTB2000 Getting Started Instrument Tour 2.2.1.2 Other Connectors on the Front Panel [Pattern Generator] (7) Connectors for the pattern generator P0, P1, P2, P3. The "Demo 1" signal is intended for demonstration purposes. [Probe Comp.] (7) Probe compensation terminal to support adjustment of passive probes to the oscilloscope channel. Square wave signal for probe compensation. Ground connector for probes. [USB] type A (8) USB 2.
R&S®RTB2000 Getting Started Instrument Tour Figure 2-2: Rear panel view of R&S RTB2000 1 2 3 4 5 6 = = = = = = LAN connector USB connector, type B AC power supply connector and main power switch Kensington lock slot to secure the instrument against theft Loop for lock to secure the instrument against theft not used [LAN] (1) 8-pin connector RJ-45 used to connect the instrument to a Local Area Network (LAN). It supports up to 1 Gbit/s. [USB] type B (2) USB 2.
R&S®RTB2000 Operating Basics Display Overview 3 Operating Basics 3.1 Display Overview The touchscreen display of the instrument shows the waveforms and measurement results, and also information and everything that you need to control the instrument.
R&S®RTB2000 Operating Basics Using the Touchscreen 3.2 Selecting the Application The "Apps Selection" dialog provides fast access to all available applications. ► There are several ways to open the "Apps Selection" dialog: ● ● Press the [Apps Selection] key. Tap the "Menu" rhomb icon in the lower right corner of the screen. Scroll down. Select "Apps". 3.3 Using the Touchscreen 3.3.
R&S®RTB2000 Operating Basics Using the Touchscreen 3 2 1 Figure 3-2: Open the main menu and select a menu item 1 2 1 Figure 3-3: Switch on or off (left) and select a parameter value (right) ► To close the menu: User Manual 1333.1611.
R&S®RTB2000 Operating Basics Using the Touchscreen Tap "Back", or tap into the diagram outside the menu. 3.3.2 Accessing Functionality Using Shortcuts The labels in information bar at the top of the display, the channel labels and also the results at the bottom provide shortcuts to the most important settings. If you tap a label, a short menu opens, the keypad for numerical entry, the setting toggles, or the corresponding menu opens. The response depends on the selected parameter.
R&S®RTB2000 Operating Basics Using the Touchscreen 3 2 1 Figure 3-5: Enter numerical value and unit 3.3.4 Using Gestures Drag one finger Drag horizontally in the diagram to change the horizontal position of all waveforms. In frequency domain, the center frequency is changed. Drag vertically in the diagram to change the vertical position of the selected waveform. To adjust the vertical position of each waveform, the trigger level, and the trigger position, drag the corresponding marker on the display.
R&S®RTB2000 Operating Basics Front Panel Keys Spread or pinch two fingers in horizontal direction to change the horizontal scale of all waveforms. In frequency domain, the frequency span is changed. Swipe two fingers If the history option R&S RTB-K15 is installed, swipe two fingers in the diagram to scrolls through the history segments. 3.4 Front Panel Keys For an overview of the front panel keys, see figure 2-1 on page 21.
R&S®RTB2000 Operating Basics Front Panel Keys [Clear Screen] Deletes all waveforms, annotations and the measurement results of deleted waveforms. All settings remain unchanged. Remote command: DISPlay:CLEar[:SCReen] on page 390 3.4.2 Analysis Controls The controls in the [Analysis] functional block open various menus for signal analysis. [Navigation] The function of this universal rotary knob depends on the usage context: ● If selection menu is open: turn the knob to select a value.
R&S®RTB2000 Operating Basics Using the Toolbar Note: Channels other than the selected one are switched off in quick measurement mode. When you activate quick measurements, cursor measurements are automatically deactivated. Deactivate quick measurements before selecting the cursors. [Search] Enables the search with the last configured setup.
R&S®RTB2000 Operating Basics Quick Access 3. Tap the functions that you need. You can select maximum 8 functions. 4. Close the dialog box. 3.6 Quick Access If the measurement task requires to change the settings from different menus repeatedly, you can use the "QuickAccess". The "QuickAccess" is a user-defined menu, which can be added to the toolbar. To configure the "QuickAccess" menu: 1. Add the "QuickAccess" icon to the toolbar as described in "Configuring the Toolbar" on page 32. 2.
R&S®RTB2000 Operating Basics Menu History c) Repeat steps a) and b) for each setting and function that you need for the measurement task. 3. To remove unwanted settings and functions: a) Tap the "Settings" icon of the function. b) To delete the selected setting or function, tap "Delete". c) To delete the complete "QuickAccess" menu, tap "Delete All". ► To show or hide the "QuickAccess" menu, tap the "QuickAccess" icon on the toolbar. 3.
R&S®RTB2000 Operating Basics Getting Help 3.8 Getting Help In most menus and dialogs, graphics explain the meaning of the selected setting. For further information, you can open the help, which provides functional description of selected setting. To open the help window 1. Tap the "Menu" icon in the lower right corner of the screen. 2. Tap "Help" on the top of the main menu. 3. Tap the setting for which you need information.
R&S®RTB2000 Waveform Setup Connecting Probes and Displaying a Signal 4 Waveform Setup This chapter describes how to connect and set up probes, to adjust the horizontal and vertical settings, and to control the acquisition. 4.1 Connecting Probes and Displaying a Signal Risk of instrument damage Make sure to set the attenuation factor on the instrument according to the probe being used. Otherwise, the measurement results do not reflect the actual voltage level, and you might misjudge the actual risk.
R&S®RTB2000 Waveform Setup Adjusting Passive Probes 7. Press the [Autoset] key. [Preset] Resets the instrument to the default state, without analyzing the signal. The previous user-defined configuration is removed and all channels except for channel 1 are disabled. Remote command: *RST [Autoset] Analyzes the enabled analog channel signals, and adjusts the horizontal, vertical, and trigger settings to display stable waveforms. Remote command: AUToscale on page 266 4.
R&S®RTB2000 Waveform Setup Vertical Setup 4.3 Vertical Setup The controls and parameters of the vertical system adjust the vertical scale and position of the waveform, and the waveform display. The probe settings also belong to the vertical setup. The channel labels at the bottom of the display show the basic vertical settings: vertical scale (for example, channel 3 in the figure below: 500 mV/div), coupling (AC), probe attenuation (10:1), and bandwidth (if limited).
R&S®RTB2000 Waveform Setup Vertical Setup The effect of the keypress depends on state of the channel: ● If channel is off: Turns on the channel and selects it. The rotary knobs alongside light up in the channel color. ● If the channel is on and in focus (selected): Opens the corresponding channel menu. ● If the channel is on but not in focus (not selected): Selects the channel waveform. ● If the channel is selected and the menu is open: Pressing the key turns off the channel.
R&S®RTB2000 Waveform Setup Vertical Setup [Ref] Displays the reference waveforms with their last configuration. The key works in the same way as the channel keys. Reference wavforms are described in Chapter 6.3, "Reference Waveforms", on page 78. [Math] Enables the math waveform, a waveform calculated from the captured data. The key works in the same way as the channel keys. Mathematics is described in Chapter 6.2, "Mathematics", on page 76. 4.3.
R&S®RTB2000 Waveform Setup Vertical Setup 4.3.3 Vertical Settings The comprehensive "Vertical" menu contains all vertical settings. 1. To open the "Vertical" menu: a) Open the main menu. b) Select "Vertical" 2. Open the channel menu. ► To open the channel menu directly, press the corresponding channel key. If the channel was active but not selected, press twice: Once to select the waveform, and next to open the short menu.
R&S®RTB2000 Waveform Setup Vertical Setup State Switches the selected channel on or off. Remote command: CHANnel:STATe on page 268 Coupling Selects the input coupling, which influences the signal path between input connector and the following internal signal stage. The current coupling of each channel is shown in the waveform labels below the grid. "AC" AC coupling is useful if the DC component of a signal is of no interest.
R&S®RTB2000 Waveform Setup Vertical Setup Invert Turns the inversion of the signal amplitude on or off. To invert means to reflect the voltage values of all signal components against the ground level. Inversion affects only the display of the signal but not the trigger. For example: if the oscilloscope triggers on the rising edge, the trigger is not changed by inversion, but the actually rising edge is displayed as falling edge. Inversion is indicated in the waveform labels by line above the channel name.
R&S®RTB2000 Waveform Setup Vertical Setup Remote command: CHANnel:ZOFFset[:VALue] on page 271 Waveform Color Selects the color scale for the waveform color. Each scale comprises a set of colors, where each color represents a certain frequency of occurrence. "Temperature" Display in temperature colors. Blue corresponds to rare occurrences of the samples, while white indicates frequent ones. "Rainbow" Display in rainbow colors.
R&S®RTB2000 Waveform Setup Vertical Setup Remote command: PROBe:SETup:ATTenuation:MANual on page 274 PROBe:SETup:GAIN:MANual on page 275 Unit Selects the unit that the probe can measure. ● V - for voltage measurements ● A - for current measurements Remote command: PROBe:SETup:ATTenuation:UNIT on page 274 PROBe:SETup:GAIN:UNIT on page 275 Probe Adjust Starts the probe adjustment procedure. A wizard explains the adjustment step by step. 4.3.
R&S®RTB2000 Waveform Setup Vertical Setup Threshold Logic 0 Hysteresis Logic 1 Logic 0 The numerical values of "Small", "Medium", and "Large" hysteresis correspond to the vertical scale. Remote command: CHANnel:THReshold:HYSTeresis on page 273 Find Threshold The instrument analyzes the channel and sets the threshold for digitization. If no level can be found, the existing value remains unchanged, and you can set the thresholds manually.
R&S®RTB2000 Waveform Setup Horizontal Setup Edit Label Opens on-screen keypad to enter a label text. If you previously have selected a predefined label, it is already written in the entry line, and you can modify it. The maximum name length is 8 characters, and only ASCII characters provided on the on-screen keypad can be used. 4.4 Horizontal Setup Horizontal settings, also known as timebase settings, adjust the waveforms in horizontal direction.
R&S®RTB2000 Waveform Setup Horizontal Setup ● Use shortcuts to adjust scale and position. ● Use the comprehensive menu to adjust all horizontal settings. 4.4.1 HORIZONTAL Controls [Position] Changes the trigger position, the time distance from the trigger point to the reference point (trigger offset). The trigger point is the zero point of the diagram. Thus, you can set the trigger point even outside the diagram and analyze the signal some time before or after the trigger.
R&S®RTB2000 Waveform Setup Horizontal Setup Remote command: TIMebase:ZOOM:STATe on page 293 [Horizontal] Opens the menu to configure horizontal scale, position, and reference point. The current scale and position is shown in the top information bar. If zoom is active, you can find also the zoom scale and zoom position in this menu. [Acquisition] Opens the "Acquisition" menu. Here you control the data processing - how the waveform is built from the captured samples.
R&S®RTB2000 Waveform Setup Acquisition Setup Reference Point Defines the time reference point in the diagram. It is indicated by a gray triangle outline at the bottom of the diagram. The reference point defines which part of the waveform is shown. By default, the reference point is displayed in the center of the window, and you can move it to the left or right. The reference point is the rescaling center of the time scale on the screen.
R&S®RTB2000 Waveform Setup Acquisition Setup There are several ways to adjust and control acquisition: ● Use the controls in the Trigger functional block of the front panel to start and stop acquisition. See Chapter 5.1, "Trigger Controls", on page 56. ● Use shortcuts to adjust the acquisition mode, and to perform a single acquisition. ● Use the comprehensive menu to adjust all acquisition settings.
R&S®RTB2000 Waveform Setup Acquisition Setup The history is described in Chapter 6.4.3, "History Settings", on page 84. Record Length Sets the record length, the number of waveform samples that are stored in one waveform record. If you use the history, you can disable the "Auto" record length and enter a value in the "History" menu. In this case, the defined record length is shown in the "Acquisition" menu.
R&S®RTB2000 Waveform Setup Acquisition Setup "Peak Detect" The minimum and the maximum of n samples are recorded as waveform points, the other samples are discarded. Thus the instrument can detect fast signal peaks at slow time scale settings that would be missed with other acquisition modes. "High Resolution" The average of n captured sample points is recorded as one waveform sample. Averaging reduces the noise, the result is a more precise waveform with higher vertical resolution.
R&S®RTB2000 Waveform Setup Acquisition Setup Roll Enables the automatic roll mode. The instrument switches to roll mode if the Time Scale is equal or slower than Start Roll Time. The roll mode displays the untriggered, continuous signal, and moves the captured input data on the display from the left to the right. The instrument shows the waveform immediately, without waiting for the complete acquisition of the waveform record. The record length is set to automatically ("Auto" mode).
R&S®RTB2000 Trigger 5 Trigger Triggering means to capture the interesting part of the relevant waveforms. Choosing the right trigger type and configuring all trigger settings correctly allows you to detect various incidents in signals. A trigger occurs if the trigger conditions are fulfilled. The instrument acquires continuously and keeps the sample points to fill the pretrigger part of the waveform record.
R&S®RTB2000 Trigger Trigger Controls 5.1 Trigger Controls The keys and the rotary knob in the Trigger functional block adjust the trigger and start or stop acquisition. The green LED above the [Levels] knob lights up when the instrument triggers. [Trigger] Opens the "Trigger" menu. [Source] Changes the analog trigger source. Press the key repeatedly until the required analog source is selected.
R&S®RTB2000 Trigger Shortcuts for Trigger Settings Remote command: TRIGger:A:LEVel[:VALue] on page 285 TRIGger:A:FINDlevel on page 286 [Force Trigger] Provokes an immediate single acquisition. Use this key if the acquisition is running in normal mode and no valid trigger occurs. Thus, you can confirm that a signal is available and use the waveform display to determine how to trigger on it. Remote command: *TRG on page 266 [Run Stop] Starts and stops the continuous acquisition.
R&S®RTB2000 Trigger General Trigger Settings 1 2 3 4 5 6 = = = = = = adjust the trigger source open the keypad to enter the value of the trigger level or threshold adjust slope or polarity adjust the trigger mode start or stop a continuous acquisition, or start a single acquisition if [Single] is active available settings depend on the trigger type 5.3 General Trigger Settings General trigger settings are independent of the trigger type.
R&S®RTB2000 Trigger General Trigger Settings "Auto" The instrument triggers repeatedly after a time interval if the trigger conditions are not fulfilled. If a real trigger occurs, it takes precedence. This mode helps to see the waveform even before the trigger is set. The waveform on the screen is not synchronized, and successive waveforms are not triggered at the same point of the waveform.
R&S®RTB2000 Trigger Edge Trigger "B1 or B2" Serial bus that is used for triggering on protocols. Only available, if the trigger type "Serial Bus" is selected. Remote command: TRIGger:A:SOURce on page 284 Hold Off, Hold Off Time Enables the hold off and defines the "Hold Off Time". The next trigger occurs only after the hold off time has passed. The trigger "Hold Off" defines when the next trigger event is recognized after the current trigger event.
R&S®RTB2000 Trigger Edge Trigger Slope............................................................................................................................. 61 Trigger Level, Threshold............................................................................................... 61 Coupling........................................................................................................................ 61 HF Reject...............................................................................
R&S®RTB2000 Trigger Width Trigger "LF Reject" Sets the trigger coupling to high frequency. A 15 kHz highpass filter removes lower frequencies from the trigger signal. Use this mode only with very high frequency signals. Remote command: TRIGger:A:EDGE:COUPling on page 286 HF Reject Enables or disables an additional 5 kHz lowpass filter in the trigger path. This filter removes higher frequencies and is available with AC and DC coupling. You can use either "HF Reject" or "Noise Reject".
R&S®RTB2000 Trigger Width Trigger ±Δ 1 ±Δ 2 Figure 5-4: Pulse width is equal or unequal to a given duration, with optional variation (Δ) 1 = Equal: (width - variation) < pulse < (width + variation) 2 = Unequal: pulse < (width - variation) OR pulse > (width + variation) ► [Trigger] > "Trigger Type" = "Width" Polarity.......................................................................................................................... 63 Comparison...................................................
R&S®RTB2000 Trigger Width Trigger Comparison Sets how the measured pulse width is compared with the given limits. "Width >" Triggers on pulse width longer than the reference "Time t". "Width <" Triggers on pulse width shorter than the reference "Time t". "Width =" Triggers on pulse width equal to the reference "Time t" if "Variation" Δt = 0. If "Variation" ≠ 0, this setting triggers on pulses within the range t±Δt.
R&S®RTB2000 Trigger Video Trigger Remote command: CHANnel:THReshold:HYSTeresis on page 273 5.6 Video Trigger The video or TV trigger is used to analyze analog baseband video signals. You can trigger on baseband video signals from standard definition and high definition standards connected to an analog channel input or to the external trigger input. The instrument triggers on the sync pulses.
R&S®RTB2000 Trigger Video Trigger High-definition television (HDTV) standards are indicated by the number of active lines and the scanning system: ● "HDTV 720p" ● "HDTV 1080p" (p for progressive scanning) ● "HDTV 1080i" (i for interlaced scanning) Remote command: TRIGger:A:TV:STANdard on page 289 Signal Selects the polarity of the signal. Note that the sync pulse has the opposite polarity. If the video modulation is positive, the sync pulses are negative.
R&S®RTB2000 Trigger Pattern Trigger 5.7 Pattern Trigger The pattern trigger is a logic trigger. It provides any logical combination of the input channels and supports you in verifying the operation of digital logic. Additionally, you can set a time limitation to the pattern. Thus you can also trigger on bus patterns of parallel buses. The channel pattern is configured in the "Logic Editor" dialog box.
R&S®RTB2000 Trigger Pattern Trigger H | L | X, Set All Defines the pattern by selecting the state "H" (high), "L" (low) or "X" (do not care) for each active analog and digital channel. The word length of the pattern depends on the number of available analog and digital channels. Analog channels: 2 bit for 2-channel instruments, 4 bit for 4-channel instruments. Digital (16 bit): the logic channels D0, D1,...,D15 are only available with MSO option R&S RTB-B1. Thus the pattern can have 2, 4, 18, or 20 bits.
R&S®RTB2000 Trigger Timeout Trigger ● ● Triggers if the pattern condition is fulfilled for a duration shorter than "Time t1" "Variation", or longer than "Time t1" + "Variation". "Inside", "Time t1" and "Time t2" Triggers if the pattern condition is fulfilled for a duration between "Time t1" and "Time t2". These settings are an alternative setting to the definition with "Width =". The time values are interdependent and adjusted accordingly.
R&S®RTB2000 Trigger Timeout Trigger Figure 5-9: Timeout trigger menu Range Selects the relation of the signal level to the threshold: Stays High The signal level stays above the trigger level. Stays Low The signal level stays below the trigger level. Stays High|Low The signal level stays above or below the trigger level. Remote command: TRIGger:A:TIMeout:RANGe on page 292 Time Defines the time limit for the timeout at which the instrument triggers.
R&S®RTB2000 Trigger Trigger Out Signal 5.9 Trigger Out Signal The R&S RTB2000 can output a pulse at the Aux Out connector when the instrument triggers. 1. To output a pulse at a trigger event, configure the Aux Out connector: "Setup" menu > "Aux Out" > "Trigger Out". See also: "Aux Out" on page 151. 2. Using remote commands, you can set the pulse width and polarity of the trigger out pulse. The commands are described in Chapter 15.10.5, "Trigger Out", on page 400. User Manual 1333.1611.
R&S®RTB2000 Waveform Analysis Zoom 6 Waveform Analysis ● ● ● ● ● Zoom.......................................................................................................................72 Mathematics............................................................................................................76 Reference Waveforms............................................................................................ 78 History and Segmented Memory (Option R&S RTB-K15)................................
R&S®RTB2000 Waveform Analysis Zoom Figure 6-1: Display of horizontal zoom: zoom in bottom window, normal waveform in upper window 1 2 3 (blue) 4 (red) 5 6 7 = = = = = = = Tap to activate zoom settings Tap to activate normal waveform settings Horizontal zoom scale and width of the zoom area Horizontal zoom position Sample rate in zoom window Horizontal scale and position of the normal waveform Close zoom window User Manual 1333.1611.
R&S®RTB2000 Waveform Analysis Zoom Figure 6-2: Display of vertical zoom 6.1.2 Modifying the Zoom There are several ways to adjust the zoom: ● Use finger gestures on the screen. ● Use the [Scale] and [Position] knobs. ● Tap the zoom scale or zoom position label in the zoom window and enter a value on the keypad. These settings are horizontal values, which take effect in horizontal and vertical zoom windows. See number 3 and 4 in Figure 6-1. ● Use the menu to enter exact numerical values.
R&S®RTB2000 Waveform Analysis Zoom Drag the zoom area on the original waveform in the upper window. To adjust the zoom using the horizontal rotary knobs 1. To set the focus to the zoom window (lower window), tap in the zoom window. 2. For horizontal and vertical zoom: a) To change the horizontal zoom scale and width of the zoom area, turn the horizontal [Scale] scale knob. b) To change the horizontal zoom position, turn the [Position] knob. 3.
R&S®RTB2000 Waveform Analysis Mathematics Remote command: TIMebase:ZOOM:SCALe on page 294 Zoom Position Defines the distance of the trigger point to the reference point in the zoom window. The value determines the position of the zoom area in the upper window. "Zoom Position" has effect in horizontal and vertical zoom. Remote command: TIMebase:ZOOM:TIME on page 294 6.2 Mathematics A math waveform is a calculated waveform.
R&S®RTB2000 Waveform Analysis Mathematics ► To open the "Mathematics" menu: a) Tap the menu icon in the lower right corner of the screen. b) Scroll down. Select "Math". State Activates the mathematics function and displays the resulting math waveform. Remote command: CALCulate:QMATH:STATe on page 295 Source 1, Source 2 Define the first and the second source for the mathematical operation (operands). The sources can be any active analog channel.
R&S®RTB2000 Waveform Analysis Reference Waveforms "Division" Divides the values of the first source by the values of the second source: Source1 / Source2 If the second source has small amplitudes, the math result increases quickly. If the second source crosses zero, the result would be a range of +∞ to -∞. In this case, instead of 0 V, the calculation function uses the value that the least significant bit (LSB) of the second operand represents. For an 8-bit value, for example, 1/256 is used.
R&S®RTB2000 Waveform Analysis Reference Waveforms TRF is the specific binary format for reference waveforms of the R&S RTB2000. It contains the amplitude value of each sample that is displayed on the screen (8 bit or 16 bit long). For peak-detect waveforms, 2 values per sample are saved. The file contains also time information (time of the first sample and the sample interval) and current instrument settings. The data can be loaded as reference waveform for further use on the instrument.
R&S®RTB2000 Waveform Analysis Reference Waveforms 9. Tap "Save" 10. Close the dialog box. To load a reference waveform 1. To open the "References" menu, tap the menu icon and select "References". 2. Select the target "Reference" waveform. 3. Tap "Load Reference". 4. Select the "Location", the folder, and the reference file. 5. Tap "Load". The instrument writes the waveform data to the selected reference waveform and displays it. 6.3.
R&S®RTB2000 Waveform Analysis Reference Waveforms State..............................................................................................................................81 Load Reference.............................................................................................................81 Load Setup....................................................................................................................81 Save Reference.........................................................
R&S®RTB2000 Waveform Analysis Reference Waveforms Remote command: REFCurve:LOAD:STATe on page 298 Save Reference Opens a dialog box to save a waveform as reference waveform: "Source" Select the waveform to be saved. You can save any active analog channel, math or reference waveform, or logic pod. "Destination" Select the "Location" (internal directory or USB flash device), and the target directory. "File Name" Enter the filename.
R&S®RTB2000 Waveform Analysis History and Segmented Memory (Option R&S RTB-K15) 6.4 History and Segmented Memory (Option R&S RTBK15) Using the history and segmented memory, you can access the data of previously acquired waveforms and analyze them. For example, you can analyze signals that occur in short bursts with long idle times, packet communication on serial buses, radar pulses, and laser pulses.
R&S®RTB2000 Waveform Analysis History and Segmented Memory (Option R&S RTB-K15) The history stores the following data during acquisition: ● All active analog channels. ● All logic channels if at least one logic is active (with option R&S RTB-B1). ● Decoded bus data if the bus is active (with at least one serial protocol option, for example, R&S RTB-K1 or -K2).
R&S®RTB2000 Waveform Analysis History and Segmented Memory (Option R&S RTB-K15) 1. Activate the history. 2. If you want to set an individual record length or segment number, disable "Auto". If "Auto" is enabled, the record length is selected in the "Acquisition" menu. 3. Set the "Record Length", or "No. of Segments". The record length and the number of segments are interdependent, if one parameter is set, the other is adjusted by the instrument. 4. If necessary, enable Fast Segmentation. 5.
R&S®RTB2000 Waveform Analysis History and Segmented Memory (Option R&S RTB-K15) No. of Segments Shows or sets the number of history segments in the memory, depending on the selected "Auto" mode. The record length is adjusted accordingly. When you change the number of segments, the history is deleted. See also: Chapter 6.4.1, "Segmented Memory", on page 83 Fast Segmentation If enabled, the acquisitions are performed as fast as possible, without processing and displaying the waveforms.
R&S®RTB2000 Waveform Analysis History and Segmented Memory (Option R&S RTB-K15) 2. Stop the acquisition. 3. Set the "Time Format" to be shown in the table: absolute or relative time. 4. Set the "Speed". 5. To play all segments once, tap "Run". 6. To play all segments repeatedly: a) Enable the "Repeat" button. b) Tap "Run". 7. To access a particular segment, you can: ● Tap the segment in the segment table. ● Drag the slider until the required segment number is shown.
R&S®RTB2000 Waveform Analysis History and Segmented Memory (Option R&S RTB-K15) Remote command: ...:HISTory:PLAYer:STATe Prev. Steps back to the next older segment. Next Steps forward to the next newer segment. Repeat If selected, the playback of the selected history segments repeats automatically. Remote command: ...:HISTory:REPLay Speed Sets the speed of the history playback: automatic, slow, middle, or fast. Remote command: ...
R&S®RTB2000 Waveform Analysis History and Segmented Memory (Option R&S RTB-K15) 6.4.5.1 Saving History to File Before you can save history data, acquire the waveform and activate the history, so that the segment table is visible. To save the waveform history segments 1. Connect a USB flash drive to the instrument. 2. Press the [Save Load] key. 3. Select "Waveforms" in the menu. 4. Under "Points", select "History Data". 5.
R&S®RTB2000 Waveform Analysis History and Segmented Memory (Option R&S RTB-K15) 4. Tap "New File". 5. Enter the filename. 6. Tap "Enter". The file is saved immediately, and the window is closed. 6.4.5.2 File Organization and Content The segment table and history segments are saved to CSV files. Segment table The segment table file contains all information that is shown in the table, and also all timestamps: relative time, time to previous, and absolute time.
R&S®RTB2000 Waveform Analysis Search Figure 6-6: Content of a history segment file, two channels are saved In addition to the data files, an index file is written. The index file delivers information on the files and the segments. For each segment, the segment index, save date and time, and the filename is listed. Figure 6-7: Content of a history index file 6.5 Search 6.5.
R&S®RTB2000 Waveform Analysis Search The found events and the search conditions are shown in the result table at the bottom of the display. The table shows the following result values: result number, time value, and optional value depending on the search type (voltage, width). During running acquisition, the results in the table are updated continuously, and the events are marked at the top of the diagram by a brown triangle outline.
R&S®RTB2000 Waveform Analysis Search 3. In the "Search" menu, select "Track event". The selected event is moved to the reference point. If you select another event, it is shown at the same position. To save search results 1. In the upper right corner of the search result table, tap the "Save" symbol. 2. Connect a USB flash drive if you want to save the data outside the instrument. 3. Select the correct "Destination" and the path. You can also store the data on the instrument.
R&S®RTB2000 Waveform Analysis Search 5. Tap "Save". The data is saved to a CSV file. 6.5.2 General Search Settings General search settings are independent of the search type. They are described in the current section. The specific settings for individual search types are described in the following sections. ► To open the "Search" menu, press the [Search] key. Search Enables and disables the search mode. Remote command: SEARch:STATe on page 300 Search Type Selects the event type you want to search for.
R&S®RTB2000 Waveform Analysis Search "Rise/Fall time" The rise or fall time search finds slopes with an exact rise or fall time, or rise/fall times shorter or longer than a given limit, or rise/fall times inside or outside a given time range. For settings, see Chapter 6.5.6, "Rise/Fall Time Search", on page 98. "Runt" The runt search finds pulses lower than normal in amplitude. In addition, you can define a time limit for the runt. For settings, see Chapter 6.5.7, "Runt Setup", on page 100.
R&S®RTB2000 Waveform Analysis Search 6.5.3 Edge Search Similar to the edge trigger, an edge search result is found when the waveform passes the given level in the specified direction. ► [Search] > "Search Type" = "Edge" > "Setup" Slope Sets the slope to be found: rising, falling, or both slopes. Remote command: SEARch:TRIGger:EDGE:SLOPe on page 302 Level Sets the voltage level for the search. To let the instrument set the level, tap "Find Threshold".
R&S®RTB2000 Waveform Analysis Search 6.5.4 Width Search The width search finds pulses with an exact pulse width, or pulses shorter or longer than a given time, or pulses inside or outside the allowable time range. It is similar to the width trigger. ► [Search] > "Search Type" = "Width" > "Setup" Polarity Indicates the polarity of the pulse to be searched for. Remote command: SEARch:TRIGger:WIDTh:POLarity on page 303 Level Sets the voltage level on which the pulse width is measured.
R&S®RTB2000 Waveform Analysis Search The comparison works like the comparison of the width trigger, see Chapter 5.5, "Width Trigger", on page 62. Remote command: SEARch:TRIGger:WIDTh:RANGe on page 303 Width Sets the reference pulse width, the nominal value for comparisons. Remote command: SEARch:TRIGger:WIDTh:WIDTh on page 304 Variation Sets a range Δt to the reference "Width" if comparison is set to "Equal" or "Not equal". The instrument finds pulses inside or outside the range width ± Δt.
R&S®RTB2000 Waveform Analysis Search ► [Search] > "Search Type" = "Rise/Fall Time" > "Setup" Edge Sets the slope to be found: ● "Rising" to search for rise time ● "Falling" to search for fall time ● "Both" to search for rise and fall time Remote command: SEARch:TRIGger:RISetime:SLOPe on page 305 Upper Level, Lower Level Set the upper and lower voltage thresholds. When the signal crosses the first level, the rise/fall time measurement starts. It stops when the signal crosses the second level.
R&S®RTB2000 Waveform Analysis Search Remote command: SEARch:TRIGger:RISetime:RANGe on page 305 Rise/Fall Time Sets the reference rise or fall time, the nominal value for comparisons. Remote command: SEARch:TRIGger:RISetime:TIME on page 306 Variation Sets a range Δt to the reference "Rise/Fall Time" if comparison is set to "Equal" or "Not equal". The instrument finds rise/fall times inside or outside the range width ± Δt. Remote command: SEARch:TRIGger:RISetime:DELTa on page 306 6.5.
R&S®RTB2000 Waveform Analysis Search Upper Level Sets the upper voltage threshold for runt detection. A negative runt crosses the upper level twice without crossing the lower level. Remote command: SEARch:TRIGger:LEVel:RUNT:UPPer on page 307 Lower Level Sets the lower voltage threshold for runt detection. A positive runt crosses the lower level twice without crossing the upper level.
R&S®RTB2000 Waveform Analysis Search Clock Selects the input channel of the clock signal. Remote command: SEARch:TRIGger:DATatoclock:CSOurce on page 308 Data Selects the input channel of the data signal. Remote command: SEARch:SOURce on page 302 Level Set the voltage levels for clock and data signals. The crossing of clock level and clock edge defines the start point for setup and hold time. The data level defines the threshold for data transition.
R&S®RTB2000 Waveform Analysis Search "Rising" Only positive clock edges are considered. "Falling" Only negative clock edges are considered. "Either" The clock edges next to the data edge are considered regardless of the clock slope. Use this setting, for example, for signals with double data rate. Remote command: SEARch:TRIGger:DATatoclock:CEDGe on page 309 Setup Time Sets the minimum time before the clock edge while the data signal must stay steady above or below the data level.
R&S®RTB2000 Waveform Analysis Search Threshold, Hysteresis Sets the search threshold value for each analog channel. If the signal value is higher than the threshold, the signal state is high. Otherwise, the signal state is considered low. For each analog channel, set a hysteresis to avoid unwanted search results caused by noise oscillation of the signal.
R&S®RTB2000 Waveform Analysis Search "NOR" "Not or" operator, no channel has the required state. Remote command: SEARch:TRIGger:PATTern:FUNCtion on page 310 Comparison Sets the condition how the duration of a steady pattern is compared with the given limit. The three settings "Width" "Variation" and "Comparison" define the time range how long the true result of the state pattern must be valid. The comparison works like the comparison of the width trigger, see Chapter 5.5, "Width Trigger", on page 62.
R&S®RTB2000 Measurements Quick Measurements 7 Measurements 7.1 Quick Measurements Quick measurement performs a set of automatic measurements on the selected input channel. The measurements cannot be configured. The results are displayed directly at the waveform (WF) or in the bottom result line (L) and are updated continuously. If the instrument detects a period in the signal, the quick measurement measures the first cycle and displays the results.
R&S®RTB2000 Measurements Automatic Measurements Quick measurement is not available on math and reference waveforms. Channels other than the selected one are switched off in quick measurement mode. When quick measurement is active, cursor measurements are not possible, but you can use automatic measurements in parallel. ► Press the [QuickMeas] key again to deactivate quick measurement. The results are deleted on the display.
R&S®RTB2000 Measurements Automatic Measurements Figure 7-1: Results of four active measurements If a result cannot be determined, "?" is displayed. Adjust the horizontal and vertical settings if the instrument cannot measure. If the measurement result is outside the measurement range and clipping occurs, the results are marked with "clipping+" or "clipping-". Adjust the vertical scale to get valid results. In addition to the current measurement results, you can enable a statistic evaluation.
R&S®RTB2000 Measurements Automatic Measurements 7.2.2.1 Horizontal Measurements (Time) Meas. type Symbol Description Frequency f Frequency of the signal, reciprocal value of the measured first period. in Hz Graphic / formula f=1/T T 50% Period T in s Duty cycle + Dty+ in % Duty cycle - Dtyin % Rise time tr in s Time of the first period, measured on the 50% level. The measurement requires at least one complete period of the signal.
R&S®RTB2000 Measurements Automatic Measurements Meas. type Symbol Description Graphic / formula Phase Phs Phase difference between two waveforms, measured on the 50% level.
R&S®RTB2000 Measurements Automatic Measurements Meas. type Symbol Description RMS cycle RMS-Cyc RMS (root mean square) value of the voltage of the leftmost signal period. in V Graphic / formula AC DC N T Peak to peak Vpp Difference of maximum and minimum values. Max Pk-Pk Min Peak+ Vp+ Maximum value within the displayed waveform. Peak- Vp- Minimum value within the displayed waveform. Max Min Pos. Overshoot +Ovr Neg.
R&S®RTB2000 Measurements Automatic Measurements Meas. type Symbol Description σ-Std. dev. cycle σ-Cyc Standard deviation of one cycle, usually of the first, left-most signal period. Graphic / formula σ N T Crest factor Crest 7.2.2.3 The crest factor is also known as peak-to-average ratio. It is the maximum value divided by the RMS value of the displayed waveform. Crest Max | x k | RMS Counting Meas.
R&S®RTB2000 Measurements Automatic Measurements In the measurement menu, you can configure up to 4 parallel measurements (also called measurement places). Available measurement types depend on the type of the selected waveform. Meas. Place Selects one of the four available measurement places to be configured or activated. Measure Activates or deactivates the selected measurement.
R&S®RTB2000 Measurements Automatic Measurements Remote command: MEASurement:SOURce on page 328 Measure Source, Measure Source 2 Set the source waveforms for delay and phase measurement, where two sources are required. Remote command: MEASurement:SOURce on page 328 Delay Setup for Measure Source and Measure Source 2 Set the edges to be used for delay measurement. You can measure the delay between two rising edges, two falling edges, between rising and next falling edge, and vice versa.
R&S®RTB2000 Measurements Cursor Measurements 7.3 Cursor Measurements The cursor measurement determines the results at the current cursor positions. You can set the cursor lines manually at fixed positions, or they can follow the waveform. Available results depend on the cursor type and the type of the waveform.
R&S®RTB2000 Measurements Cursor Measurements ● ● Press the [Navigation] knob repeatedly until the required cursor line is active (marked with a solid line). Turn the knob to move the line. Tap the corresponding result value in the result line at the bottom. The keypad opens, and you can enter an exact value. 7.3.1 Cursor Settings ► To open the "Cursor" menu: a) Tap the "Menu" icon in the lower right corner of the screen. b) Scroll down. Select "Cursor".
R&S®RTB2000 Measurements Cursor Measurements "Vertical" Sets two vertical cursor lines and measures the time from the trigger point to each cursor line, the time between the cursor lines and the frequency calculated from that time. Results: t1, t2, Δt, 1/Δt (for FFT measurements: frequencies) "Vertical & Horiz." Combines the "Horizontal" cursor and "Vertical" cursor measurements. Two horizontal and two vertical cursor lines are set.
R&S®RTB2000 Measurements Cursor Measurements Set To Trace Autoset for cursor lines, sets the cursor lines to typical points of the waveform depending on the selected cursor type. For example, for voltage measurement ("Horizontal"), the cursor lines are set to the upper and lower peaks of the waveform. For time measurement ("Vertical"), the cursor lines are set to the edges of two consecutive positive or two consecutive negative pulses.
R&S®RTB2000 Applications Mask Testing 8 Applications All available applications are provided in the "Apps Selection" dialog. ► To select an application, press the [Apps Selection] key. See also: Chapter 3.2, "Selecting the Application", on page 26. The following applications are available: ● "QuickMeas": see Chapter 7.1, "Quick Measurements", on page 106 ● "Probe Adjust": see Chapter 4.2, "Adjusting Passive Probes", on page 37 ● "Function Gen.": see Chapter 14.
R&S®RTB2000 Applications Mask Testing left column = absolute number and percentage of acquisitions that passed the test middle column = absolute number and percentage of acquisitions that violated the mask right column = number of tested acquisitions and test duration During a mask test, various actions can be executed when mask violations occur: notification by a sound, stop of acquisition, saving a screenshot, saving the waveform data, sending a pulse.
R&S®RTB2000 Applications Mask Testing 5. Adjust the size of the mask: ● ● For simple setup, use "Size+" and "Size-" to change the mask dimensions in xand y-direction. For detailed setup: – Tap "Setup" to open the "Mask" menu. – Change "Width Y", "Width X" and/or "Stretch Y". 6. To save the mask for later use, tap "Save". To load a mask 1. Press the [Apps Selection] key. 2. Tap "Mask". 3. Tap "Load". User Manual 1333.1611.
R&S®RTB2000 Applications Mask Testing 4. Select the mask file. 5. Tap "Load". To perform a mask testing 1. Set up the waveform that you want to test. 2. Create or load a mask. See: ● ● "To create and set up a mask" on page 120 "To load a mask" on page 121 3. If necessary, tap "Setup" and adjust the y-position of the mask. 4. Set the "Actions" to be performed on violation. 5. In the mask window, tap "Run". If the mask limits are violated, the specified action is taken.
R&S®RTB2000 Applications Mask Testing Reset Deletes all test results. Remote command: MASK:RESet:COUNter on page 347 Run, Stop Starts or finishes the mask test. Remote command: MASK:TEST on page 347 New Creates a mask from the envelope of the selected channel waveform. Remote command: MASK:SOURce on page 344 MASK:CHCopy on page 344 Size+, SizeEnlarges or decreases the mask in x- and y-direction. Save, Load Saves the created mask to file, or loads a previously saved mask. The file format is MSK.
R&S®RTB2000 Applications Mask Testing Test Performs a mask test for the selected signal, i.e. the signal amplitudes are compared with the specified mask. If the amplitude exceeds the limits of the mask, a violation is detected. Remote command: MASK:TEST on page 347 Copy Channel Creates a mask from the envelope waveform of the selected channel and stores it in the instrument. Remote command: MASK:SOURce on page 344 MASK:CHCopy on page 344 Y-Position Moves the mask vertically within the display.
R&S®RTB2000 Applications Mask Testing Width X Changes the width of the mask in horizontal direction. The specified factor in divisions is added to the positive x-values and subtracted from the negative x-values of the mask limits in relation to the mask center. Thus, the left half of the mask is pulled to the left, the right half is pulled to the right. Remote command: MASK:XWIDth on page 344 Width Y Changes the width of the mask in vertical direction.
R&S®RTB2000 Applications FFT Analysis MASK:ACTion:SCRSave:EVENt:MODE on page 345 MASK:ACTion:WFMSave:EVENt:MODE on page 345 Capture Segments Selects whether all acquisitions are stored in segments, or only failed acquisition. You can use the hostiry to analyze the segments. Only available with history option R&S RTB-K15. Remote command: MASK:CAPTure[:MODE] on page 348 8.2 FFT Analysis The R&S RTB2000 provides basic FFT calculation, which is included in the firmware.
R&S®RTB2000 Applications FFT Analysis 1 2 3 4 5 = = = = = Enable FFT Signal vs. time display FFT parameters Spectrum, result of the FFT analysis FFT label with vertical scale (range per division). Color indicates the source waveform of FFT calculation. Data source FFT analysis is performed on the data captured from one of the active input channels, or one of the active math or reference waveforms. Analysis can only be performed on one channel at a time.
R&S®RTB2000 Applications FFT Analysis Vertical position and size of the FFT waveform To set the position and the vertical scaling, select the spectrum window and use the vertical [Scale] and [Offset / Position] (upper knob) knobs. Remote commands: ● SPECtrum:FREQuency:SCALe on page 350 ● SPECtrum:FREQuency:POSition on page 350 8.2.2 Performing FFT Analysis 1. To adjust the instrument settings to the current input signal automatically, press [Autoset]. 2. Press the [FFT] key twice to open the FFT menu.
R&S®RTB2000 Applications FFT Analysis 8.2.3.2 FFT Settings in the Spectrum Window Typical FFT parameters can be set directly in the spectrum window, above the diagram. 1 2 3 4 = = = = Start frequency Stop frequency Center Span Start Defines the start frequency of the displayed frequency span. Remote command: SPECtrum:FREQuency:STARt on page 351 Stop Defines the stop frequency of the displayed frequency span.
R&S®RTB2000 Applications FFT Analysis Span The span is specified in Hertz and defines the width of the displayed frequency range, which is (Center - Span/2) to (Center + Span/2). To set the frequency span, you can also use the horizontal [Scale] knob if the focus is on the frequency window. Remote command: SPECtrum:FREQuency:SPAN on page 351 RBW The resolution bandwidth (RBW) determines the resolution of the spectrum, that is: the minimum distance between two distinguishable peaks.
R&S®RTB2000 Applications FFT Analysis The R&S RTB2000 provides various window functions to suit different input signals. Each window function has specific characteristics, including some advantages and some trade-offs. Consider these characteristics to find the optimum solution for the measurement task. "Hanning" The Hanning window is bell shaped. Unlike the Hamming window, its value is zero at the borders of the measuring interval.
R&S®RTB2000 Applications FFT Analysis "Spectrum" The current value for each frequency is displayed. "Min Hold" The minimum value for each frequency over all FFTs is displayed. Using the "Min Hold" waveform type is a good way to highlight signals within noise or suppress intermittent signals. "Max Hold" The maximum value for each frequency over all FFTs is displayed.
R&S®RTB2000 Applications XY-Diagram "dBV" Logarithmic scaling; related to 1 Veff. "Veff" Linear scaling; displays the RMS value of the voltage. Remote command: SPECtrum:FREQuency:MAGNitude:SCALe on page 349 8.3 XY-Diagram XY-diagrams combine the voltage levels of two waveforms in one diagram. They use the amplitude of a second waveform as the x-axis, rather than a timebase. Thus, you can measure phase shift, for example.
R&S®RTB2000 Applications Digital Voltmeter Source X Defines the source to be displayed in x-direction in an XY-diagram, replacing the usual timebase. The source can be any of the analog channels. Remote command: DISPlay:XY:XSOurce on page 364 Source Y1 Defines the first signal to be displayed in y-direction in an XY-diagram. The source can be any of the active analog channels.
R&S®RTB2000 Applications Digital Voltmeter Figure 8-1: Results of 4 meter measurements. The measurement source is indicated by the channel color. The source of meter 1 is channel 1, and it is clipped. Remote commands to read meter results: ● DVM:RESult[:ACTual]? on page 365 ● DVM:RESult[:ACTual]:STATus? on page 366 8.4.1 Using the Meter To activate meter measurements ► Use one of the following ways: ● Tap the "Meter" icon on the toolbar. ● Press the [Apps Selection] key. Tap "Meter".
R&S®RTB2000 Applications Digital Voltmeter To deactivate meter measurements ► Use one of the following ways: ● ● Tap the "Meter" icon on the toolbar again. Close the "Meter" result box. 8.4.2 Meter Settings ► To open the "Meter" configuration menu, tap inside the "Meter" result box. Meter (on/off) Activates or deactivates the digital voltmeter with the last configuration. Preset deletes the voltmeter configuration.
R&S®RTB2000 Applications Trigger Counter 8.5 Trigger Counter The counter shows two basic parameters of the trigger source: frequency and period. 1. Press the [Apps Selection] key. 2. Tap "Trigger Counter". By default, the result box shows the frequency and period of the trigger source. 1. To toggle frequency and period results, tap inside the box. 2. To show the counter results of active waveforms, tap the source icon ("Trg") and select a waveform. 3.
R&S®RTB2000 Documenting Results 9 Documenting Results The R&S RTB2000 can store various data to files for further usage, analysis and reporting: ● Instrument settings: Chapter 9.1, "Saving and Loading Instrument Settings", on page 139 ● Waveforms: Chapter 9.2, "Saving Waveform Data", on page 140 ● Screenshots: Chapter 9.4, "Screenshots", on page 145 ● Reference waveforms ● – Chapter 6.3, "Reference Waveforms", on page 78 – Export and import: Chapter 9.
R&S®RTB2000 Documenting Results Saving and Loading Instrument Settings The supported file system in all storage locations is FAT. 9.1 Saving and Loading Instrument Settings To repeat measurements or tests at different times or perform similar measurements with different test data, you can save the used configuration settings. Furthermore, it can be helpful to refer to the configuration settings of a particular measurement when analyzing the results.
R&S®RTB2000 Documenting Results Saving Waveform Data Tap "Save" to start writing the data. Remote command: MMEMory:STORe:STATe on page 388 Load Opens a file explorer to select an instrument setup file to be loaded to the instrument. To change the storage location, select "Destination" > "Location". Tap "Load" to change the settings. Remote command: MMEMory:LOAD:STATe on page 388 Import Export Opens a menu to copy data between the instrument's internal storage "/INT/ SETTINGS" and a USB flash drive.
R&S®RTB2000 Documenting Results Saving Waveform Data 9.2.1 Waveform Export Settings Destination The destination /USB_FRONT is only active, if a USB flash drive is connected to the front USB port. Tap the field and select the target folder. Tap "Accept Dir." to confirm selection. Remote command: EXPort:WAVeform:NAME on page 380 File Name Specifies the name of the file to be saved. The default is TRACE01 or a higher number, depending on existing files in the target directory.
R&S®RTB2000 Documenting Results Saving Waveform Data Remote command: EXPort:WAVeform:SOURce on page 379 Points Selects the number of data points to be saved in the waveform file. ● ● ● "Display Data": Saves all currently displayed waveform samples. "Acq. Memory": Saves all data samples that are stored in the acquisition memory. This setting takes effect only for stopped acquisitions. For running acquisitions, only always display data can be saved.
R&S®RTB2000 Documenting Results Saving Waveform Data Example CSV1: Waveform of channel 1, single values in s,CH1 in V -1.1996E-02,1.000E-02 -1.1992E-02,1.000E-02 -1.1988E-02,1.000E-02 -1.1984E-02,1.000E-02 Example CSV2: Waveform of channel 1, pairs of values in s,CH1 in V -2.9980E+00,2.000E-05 -2.9980E+00,1.400E-04 -2.9960E+00,-1.800E-04 -2.9960E+00,1.400E-04 -2.9940E+00,-1.800E-04 -2.9940E+00,1.400E-04 Example CSV3: FFT in Hz,FFT in dBm 0.000000E+00,1.03746E+01 1.525879E+02,7.49460E+00 3.051758E+02,-1.
R&S®RTB2000 Documenting Results Annotations You can set the word order: BIN MSBF saves data in Big Endian order - beginning with the MSB (Most Significant Byte) and ending with the LSB (Least Significant Byte). BIN LSBF saves data beginning with the LSB and ending with the MSB. Pairs of values are listed as two subsequent single values, without any identification. 9.2.2.4 FLT Format FLT files contain amplitude values in float format, where 4 successive bytes are saved in a 32-bit float value.
R&S®RTB2000 Documenting Results Screenshots 1 2 3 4 5 = = = = = Annotations on / off Drawing tools Text tool Eraser to delete single lines Remover to delete all annotations 3. To finish, tap the "Annotation" icon in the toolbar again. 9.4 Screenshots You can create and save screenshots of the current display of your waveforms and measurement results. The R&S RTB2000 saves screenshots to USB flash drive. To save screenshots quickly, you can use the "Screenshot" toolbar icon or the [Camera] key.
R&S®RTB2000 Documenting Results Screenshots To configure screenshots: 1. Press the [Save Load] key. 2. Select "Screenshots". 3. Adjust the target directory ("Destination"), filename, format, and color mode. You can save the current display with "Save", or close the dialog box. The screenshot settings are saved and applied when you create screenshots with the key. Destination The destination /USB_FRONT is only active, if a USB flash drive is connected to the front USB port.
R&S®RTB2000 Documenting Results Quick Save with OneTouch ● ● "Inverted": Inverts the colors of the output, so that a dark waveform is printed on a white background. "Inverted (gray)": Inverts the colors of the output, and converts to a monochrome image. Remote command: HCOPy:COLor:SCHeme on page 382 Save Saves the screenshot to the specified file. The used path and file name are displayed when the storage is completed. Remote command: HCOPy[:IMMediate] on page 381 9.
R&S®RTB2000 Documenting Results Export and Import 6. To save the data now, tap "Save". 7. Close the dialog. 8. Press the key each time when you want to save the data. 9.6 Export and Import To copy reference waveforms and instrument settings from the internal storage to USB flash drive or vice versa, the "Import Export" functions are used. The name of the target file can be changed, so you can copy and rename in one operation.
R&S®RTB2000 Documenting Results Export and Import Import/export menu for instrument settings Import/export menu for reference waveforms 4. Define the source file for the copy operation: a) b) c) d) e) Tap "Source File". If necessary, change the storage location with "Location". Select the folder that contains the source file. Select the file. A small screenshot helps to identify the file. Tap "Load". The source file is selected, but not loaded to the R&S RTB2000. 5. Define the target directory.
R&S®RTB2000 General Instrument Setup Instrument Settings 10 General Instrument Setup The general instrument settings are available in all operating modes. 10.1 Instrument Settings ► To open the "Setup" menu: a) Tap the "Menu" rhomb icon in the lower right corner of the screen. b) Scroll down. Select "Setup". Device Information Displays information on the instrument, such as its serial number, the installed firmware version and hardware information.
R&S®RTB2000 General Instrument Setup Instrument Settings Interface Activates or deactivates additional instrument interfaces. Use these interfaces to communicate with the instrument, for example to read out data or automate the measuring station. USB and Ethernet (LAN) interfaces are installed in the rear panel. After selecting an interface, tap "Parameter" to define additional parameters. USB ← Interface Activates the type B USB interface on the rear panel for remote control.
R&S®RTB2000 General Instrument Setup Instrument Settings "Trigger Out" Outputs a pulse when the instrument triggers. "10 MHz" Outputs a 10 MHz reference frequency. "Function Generator" Outputs the waveform specified in the "Function Generator" dialog. "Mask Violation" Outputs a pulse when a mask is violated. This setting is only available if the "Mask" application is selected in the "Apps Selection" dialog. Remote command: TRIGger:OUT:MODE on page 400 Firmware Update See Chapter 10.
R&S®RTB2000 General Instrument Setup Display Settings "Clear Password" Deletes the password and allows all users enabling or disabling the education mode. You have to enter the password first before you can delete it. Using the remote command, you can clear the education mode password without using the password.
R&S®RTB2000 General Instrument Setup Display Settings ► To remove all waveforms and results from the display, press the [Clear Screen] key at the front panel. Persistence Defines the persistence (afterglow effect) of the waveform on the display. "Off" Deactivates persistence. "Manual" User-defined persistence according to "Time" setting. "Infinite" Activates persistence with infinite duration.
R&S®RTB2000 General Instrument Setup Display Settings Remote command: DISPlay:INTensity:GRID on page 392 LED Brightness ← Intensities Defines the intensity of illuminated front panel keys and rotary knobs in percent. Remote command: DISPlay:INTensity:BACKlight on page 392 Dots Only If activated, only the individual data points are displayed. If deactivated, the individual data points are connected by a line.
R&S®RTB2000 General Instrument Setup Reset Remote command: DISPlay:GRID:ANNotation[:ENABle] on page 393 Track Grid ← Grid If enabled, the grid moves with the waveforms if you change the waveform's position in horizontal or vertical direction. If disabled (= default), the grid remains centered on the display if you change the waveform's position. Remote command: DISPlay:GRID:ANNotation:TRACk on page 393 10.3 Reset Reset is helpful if the instrument is in undefined condition and cannot be operated.
R&S®RTB2000 General Instrument Setup Performing a Self-Alignment 10.4 Locking the Touchscreen The Touch Lock key locks the touchscreen to prevent unintended use. When the touchscreen is off, the key is illuminated. Press again to unlock the touchscreen. 10.5 Performing a Self-Alignment The self-alignment aligns the data from several input channels vertically and horizontally to synchronize the timebases, amplitudes and positions.
R&S®RTB2000 General Instrument Setup Setting the Data, Time and Language Start Starts the internal self-calibration of the instrument. Status information is displayed on the screen. Remote command: CALibration on page 394 Save Alignment Log file The log file records the results of the self-alignment. You save the log file. Remote command: CALibration:STATe? on page 394 10.6 Setting the Data, Time and Language The instrument has a date and time clock.
R&S®RTB2000 General Instrument Setup Options Description of settings Language Selects the language in which the button labels and other screen information is displayed. The help is available only in English. Remote command: DISPlay:LANGuage on page 389 Date & Time Provides a dialog to set the current date and time in the instrument. Remote command: SYSTem:DATE on page 395 SYSTem:TIME on page 395 10.7 Options All options are activated by license keys.
R&S®RTB2000 General Instrument Setup Updating the Firmware 2. Connect the drive to the R&S RTB2000. 3. Tap the "Menu" icon in the lower right corner of the screen. 4. Scroll down the menu. Tap "Setup". 5. Select "Options". 6. If you received a key in written form, tap "Input option key manually". Enter the key. If you received a key in digital form as a file, tap "Read option key from file". Select path /USB_FRONT and the option key file. 7.
R&S®RTB2000 General Instrument Setup Updating the Firmware Now you can see an info window with information about the installed and new firmware and front controller firmware. If you have no newer firmware than the installed one, a message appears. 6. Tap "Execute" to start the firmware update. Wait until the update has finished. After installation, the instrument restarts automatically. User Manual 1333.1611.
R&S®RTB2000 Network Connections and Remote Operation LAN Connection 11 Network Connections and Remote Operation 11.1 LAN Connection The R&S RTB2000 is equipped with a network interface and can be connected to an Ethernet LAN (local area network). A LAN connection is necessary for remote control of the instrument, and for access from a computer using a web browser. Connecting the instrument to the LAN 1. Connect the LAN cable to the LAN connector at the rear panel of the instrument. 2.
R&S®RTB2000 Network Connections and Remote Operation LAN Connection Figure 11-1: Example of the Ethernet setup dialog and menu Description of settings IP Mode Selects the Internet protocol mode: ● "Manual": To be used if the network does not support dynamic host configuration protocol (DHCP). The addresses must be set manually. ● "DHCP/Auto IP" enables DHCP for automatic network parameter distribution and shows the values of these parameters.
R&S®RTB2000 Network Connections and Remote Operation LAN Connection IP Port, VXI-11 Port Specify the IP port number (default = 5025) and the VXI-11 port number (default = 1024). Remote command: SYSTem:COMMunicate:INTerface:ETHernet:IPPort on page 398 SYSTem:COMMunicate:INTerface:ETHernet:HTTPport on page 399 Link "Yes", if the instrument is connected to a local area network via the LAN interface on the rear panel. "No", if no LAN connection is detected.
R&S®RTB2000 Network Connections and Remote Operation USB Connection 11.2 USB Connection In addition to a LAN connection, you can use the USB connector at the rear panel to access the instrument via USB. Connecting the instrument using USB 1. Connect the USB cable to the USB type B connector at the rear panel of the instrument, and to the computer. 2. Open the "Setup" menu. 3. Tap "Interface". 4. Tap "USB" to select USB connection. 5. Tap "Parameter". 6. Select the USB mode.
R&S®RTB2000 Network Connections and Remote Operation Remote Access Using a Web Browser 11.2.2 USB VCP USB VCP uses the virtual COM port (VCP) to communicate with the measuring instrument. You can use any terminal program to send SCPI commands. USB VCP requires a USB VCP driver on the controlling computer. If the computer requests a driver installation, you can download the driver at the Rohde & Schwarz website (www.rohdeschwarz.com/de/treiber/hmo/, HO732).
R&S®RTB2000 Network Connections and Remote Operation Remote Access Using a Web Browser 2. Open an Internet browser on the control computer. 3. Enter the IP address of the R&S RTB2000 in the address line: http//:xxx.yyy.zzz.xxx. The "Instrument Home" page opens. If already another user is using the instrument via web access, connection is not possible, and you get an information about that. 11.3.2 Instrument Home The "Instrument Home" page provides information on the instrument and the LAN connection.
R&S®RTB2000 Network Connections and Remote Operation Remote Access Using a Web Browser Screenshots ● "Auto refresh" and "Update" Get the current screen content from the instrument. With "Auto refresh", you can set the interval of automatic updates. ● "Format" and "Color mode": ● Set the file format and color mode of the screenshot. ► To save the screenshot, right-click the picture and select "Save image as". 11.3.
R&S®RTB2000 Network Connections and Remote Operation Remote Access Using a Web Browser 11.3.5 Save/Load On the "Save/Load" page, you can save waveform data and instrument settings to a file - either on the computer (local host) or on the instrument. On the computer, the default storage directory is the download folder, but you can change the directory using the download functions of your browser. On the instrument, the files are saved in the internal storage.
R&S®RTB2000 Network Connections and Remote Operation Remote Access Using a Web Browser 11.3.6 Network Settings On the "Network Setting" page, you can change the port settings, switch off DHCP address and enter an IP address in a more comfortable way than directly on the instrument. To take effect of the changes, "Submit" them to the instrument. "Reset" removes all modified values that were not yet sent to the instrument. User Manual 1333.1611.
R&S®RTB2000 Network Connections and Remote Operation Remote Access Using a Web Browser 11.3.7 Change Password On the "Change Password" page, you can change or remove the password to protect remote access to the instrument. Alternatively, you can change the password in the Ethernet settings dialog on the instrument. 11.3.8 Livescreen You see a live image of the instrument's display. Controlling the instrument is not possible, and only one remote connection to the livescreen is allowed at a time.
R&S®RTB2000 Serial Bus Analysis Basics of Protocol Analysis 12 Serial Bus Analysis Using the R&S RTB2000 and additional options, you can analyze the following serial protocols: ● SPI (Serial Peripheral Interface with 3 lines) and SSPI (Serial Peripheral Interface with 2 lines) - requires option R&S RTB-K1 See Chapter 12.2, "SPI Bus (Option R&S RTB-K1)", on page 181. ● I²C (Inter-Integrated Circuit bus) - requires option R&S RTB-K1 See Chapter 12.3, "I²C (Option R&S RTB-K1)", on page 189.
R&S®RTB2000 Serial Bus Analysis Basics of Protocol Analysis ● ● ● ● ● Protocol - Common Settings................................................................................. 173 Displaying Decode Results................................................................................... 175 Bus Table: Decode Results................................................................................... 176 Bus Labels...........................................................................................
R&S®RTB2000 Serial Bus Analysis Basics of Protocol Analysis Remote command: BUS:STATe on page 402 Configuration Opens or closes the dialog box with configuration settings of the selected bus. The following chapters describe manual protocol configuration: ● Chapter 13.5, "Parallel Buses", on page 236 ● Chapter 12.2.2, "SPI Configuration", on page 182 ● Chapter 12.3.2, "I2C Configuration", on page 192 ● Chapter 12.4.2, "UART Configuration", on page 199 ● Chapter 12.5.
R&S®RTB2000 Serial Bus Analysis Basics of Protocol Analysis 12.1.2 Displaying Decode Results When the configuration of a serial bus is complete, the instrument can decode the signal. The decode results are displayed in two ways: ● Bus signal with combs, time-correlated to the input signals. The combs show the values of the frames or words. ● Bus table. The table lists data values and time information of the frames or words. For details, see Chapter 12.1.3, "Bus Table: Decode Results", on page 176.
R&S®RTB2000 Serial Bus Analysis Basics of Protocol Analysis Display Selects the decoding format of the data: binary, hexadecimal, decimal, octal or ASCII. The setting applies to the data in the combs of the decoded bus line, but not to the bus table. Remote command: BUS:FORMat on page 403 Bits Enables the display of the individual bit lines above the decoded bus line. Remote command: BUS:DSIGnals on page 403 12.1.
R&S®RTB2000 Serial Bus Analysis Basics of Protocol Analysis Bus Table Displays or hides a table of decoded signal data. Remote command: BUS:RESult on page 404 Track Frame If enabled, the selected frame in the bus table is automatically synchronized with the waveform display. The function is only available if the acquisition has been stopped. Frame time difference If selected, the time column in the bus table shows the frame's time difference to the previous frame.
R&S®RTB2000 Serial Bus Analysis Basics of Protocol Analysis Predefined Label Selects a predefined label text. You can edit the text with "Edit Label". Edit Label Opens on-screen keypad to enter a label text. If you previously have selected a predefined label, it is already written in the entry line, and you can modify it. The maximum name length is 8 characters, and only ASCII characters provided on the on-screen keypad can be used. Remote command: BUS:LABel on page 403 12.1.
R&S®RTB2000 Serial Bus Analysis Basics of Protocol Analysis 5. Select "Load". 6. Navigate to the label list file, select it, and tap "Load". 7. To read the label list, tap "Show Label List". 8. To see the node labels in the display of the decoded data, tap "Apply". To trigger on an identifier or address using the label Prerequisites: The bus is configured, decoding is enabled, and a decoded signal is visible. 1. Open the "Bus" menu. 2. Select "Trigger". 3.
R&S®RTB2000 Serial Bus Analysis Basics of Protocol Analysis ● Command lines begin with a commercial at character @. An @ character at any other position in the line is treated like a standard character. ● Standard lines are the lines that not qualify as comment or command lines. They build the core of the label list.
R&S®RTB2000 Serial Bus Analysis SPI Bus (Option R&S RTB-K1) 7,01h, Temperature # A comma must be enclosed in double quotes: 7,01h,"Temperature, Pressure, and Volume" # A double quote must also be enclosed in double quotes: 7,7Fh,"Highspeed ""Master"" 01" # Following lines yield the same result: 7d,0x11,Pressure 7h,11h,Pressure 0x7,17d,Pressure 7,17,Pressure 12.2 SPI Bus (Option R&S RTB-K1) ● ● ● ● The SPI Protocol.....................................................................................
R&S®RTB2000 Serial Bus Analysis SPI Bus (Option R&S RTB-K1) Figure 12-2: Simple configuration of SPI bus The data bits of a message are grouped by following criteria: ● A word contains a number of successive bits. The word length is defined in the protocol configuration. ● A frame contains a number of successive words, at least one word.
R&S®RTB2000 Serial Bus Analysis SPI Bus (Option R&S RTB-K1) SPI configuration settings Figure 12-3: SPI (no CS) setup Figure 12-4: SPI (with CS) setup Chip Select..................................................................................................................183 Clock........................................................................................................................... 184 Slope.........................................................................................
R&S®RTB2000 Serial Bus Analysis SPI Bus (Option R&S RTB-K1) Clock Selects the input channel of the clock line. If the MSO option R&S RTB-B1 is installed, you can use logic channels as source. Remote command: BUS:SPI:CLOCk:SOURce on page 405 BUS:SSPI:CLOCk:SOURce on page 408 Slope Selects if data is sampled on the rising or falling slope of the clock. The clock slope marks the begin of a new bit.
R&S®RTB2000 Serial Bus Analysis SPI Bus (Option R&S RTB-K1) Remote command: CHANnel:THReshold on page 273 CHANnel:THReshold:FINDlevel on page 273 DIGital:THReshold on page 468 Word Size Sets the word length (or symbol size), which is the number of bits in a message. The maximum word length is 32 bit. You can also define the bit order, which determines if the data of the messages starts with "MSB" (most significant bit) or "LSB" (least significant bit).
R&S®RTB2000 Serial Bus Analysis SPI Bus (Option R&S RTB-K1) ● ● "Bit ": a specified bit inside the message "Serial Pattern": a bit pattern in the message 6. If "Serial Pattern" is selected, the SPI trigger setup dialog expands to define the serial pattern. SPI trigger settings The trigger settings are shown in the dialog below the bus configuration settings. In the trigger menu, you select the trigger source, and open or close the setup dialog box.
R&S®RTB2000 Serial Bus Analysis SPI Bus (Option R&S RTB-K1) Source If both MOSI and MISO lines are configured for analysis, select which line is the trigger source. Remote command: TRIGger:A:SOURce:SPI on page 411 SPI Trigger Selects the trigger condition. "Frame Start" Sets the trigger to the start of the message: ● ● "Frame End" Sets the trigger to the end of the message. ● ● "Bit " For SPI with CS, the frame starts when the chip select signal CS changes to the active state.
R&S®RTB2000 Serial Bus Analysis SPI Bus (Option R&S RTB-K1) Data Specifies the data pattern if "SPI Trigger" is set to "Serial Pattern". When the instrument detects the specified data pattern, it sets the trigger to the first bit of this pattern. An example of pattern definition is shown in Figure 12-6. To enter the binary value of any bit, tap this bit. To enter the hexadecimal value, tap one of the nibbles (half byte) in the lower data line.
R&S®RTB2000 Serial Bus Analysis I²C (Option R&S RTB-K1) Figure 12-7: Decoded SPI (no CS) signal with Bus Table. The first frame has fourteen words and the second eight words. Table 12-1: Content of the SPI bus table Column Description Start time Time of the frame start in relation to the trigger point Length Number of words in the frame Data Hexadecimal values of the data words State Overall state of the frame Remote commands are described in Chapter 15.11.2.
R&S®RTB2000 Serial Bus Analysis I²C (Option R&S RTB-K1) ● ● ● ● ● The I²C Protocol.................................................................................................... 190 I2C Configuration...................................................................................................192 I2C Trigger.............................................................................................................193 I2C Decode Results ...........................................................
R&S®RTB2000 Serial Bus Analysis I²C (Option R&S RTB-K1) Figure 12-8: I2C writes access with 7-bit address Address types: 7-bit and 10-bit Slave addresses can be 7 bits or 10 bits long. A 7-bit address requires 1 byte, 7 bits for the address followed by the R/W bit. A 10-bit address for write access requires 2 bytes: the first byte starts with the reserved sequence 11110, followed by the two MSB of the address and the write bit. The second byte contains the remaining 8 LSB of the address.
R&S®RTB2000 Serial Bus Analysis I²C (Option R&S RTB-K1) 12.3.2 I2C Configuration The correct setup of the protocol parameters and the threshold is the condition for decoding the signal. To set up and decode an I2C signal 1. Press the [Protocol] key in the Analysis area of the front panel. 2. Select the bus that you want to use: B1 or B2. 3. Select the "Bus Type" = I2C. 4. Select "Configuration". 5. Select the "SCL", the channel to which the clock line is connected. 6.
R&S®RTB2000 Serial Bus Analysis I²C (Option R&S RTB-K1) Remote command: BUS:I2C:DATA:SOURce on page 417 Threshold, Find Threshold Set the signal threshold for the source channel. Enter a value, or use "Find Threshold" to set the threshold to the middle reference level of the measured amplitude. For analog channels, you can find the value also in the "Vertical" menu > "Channel " >"Threshold" For logic channels, you can find the value also in the "Logic" menu > "Threshold".
R&S®RTB2000 Serial Bus Analysis I²C (Option R&S RTB-K1) I2C trigger settings Figure 12-12: Trigger setup dialog to trigger on a combination of address and data A5 5$ = Hex value of the 1st byte, with the binary value 10100101 = Hex value of the 2nd byte, where the 1st nibble has the binary value 0101 and the 2nd nibble is represented by the "$" character, as it includes one "X" bit (don't care) XX (gray) = The 3rd byte is not contained in the specified pattern I2C Trigger...............................
R&S®RTB2000 Serial Bus Analysis I²C (Option R&S RTB-K1) Remote command: TRIGger:A:I2C:MODE on page 417 Slave Address Sets the slave address to be triggered on. If you want to trigger only on a data pattern and the address is not relevant, enable "Any Address". To specify the slave address, set the following properties: ● Set the length of the slave address: "7Bit" or "10Bit". ● Toggle the trigger condition between "Read" and "Write" access of the master.
R&S®RTB2000 Serial Bus Analysis I²C (Option R&S RTB-K1) Data: Bin / Hex pattern ← Data condition Defines the data pattern in binary and hexadecimal format. To set an individual binary bit or hex nibble (half byte), tap it and enter the value on the on-screen keypad. The maximum pattern length is 3 bytes. Remote command: TRIGger:A:I2C:PATTern on page 419 12.3.4 I2C Decode Results When the configuration of the serial bus is complete, the signal can be decoded: 1. In the "Bus" menu, enable "Decode". 2.
R&S®RTB2000 Serial Bus Analysis I²C (Option R&S RTB-K1) gray brackets violet blue green = = = = start and end of the frame address correct data words acknowledge bit, ok The figure above shows a decoded I2C signal and the "Bus Table".
R&S®RTB2000 Serial Bus Analysis I²C (Option R&S RTB-K1) For general information on label lists, see Chapter 12.1.5, "Label List", on page 178. Figure 12-14: Label list for I2C Figure 12-15: Decoded I2C signal with applied label list and zoom on second frame User Manual 1333.1611.
R&S®RTB2000 Serial Bus Analysis UART / RS232 (Option R&S RTB-K2) 12.4 UART / RS232 (Option R&S RTB-K2) ● ● ● ● The UART / RS232 Interface................................................................................ 199 UART Configuration.............................................................................................. 199 UART Trigger........................................................................................................ 202 UART Decode Results .............................
R&S®RTB2000 Serial Bus Analysis UART / RS232 (Option R&S RTB-K2) To set up and decode a UART signal 1. Press the [Protocol] key in the Analysis area of the front panel. 2. Select the bus that you want to use: B1 or B2. 3. Select the "Bus Type" = UART. 4. Select "Configuration". 5. Select the "TX / RX / Source", the channel to which the input signal is connected. 6. Set the threshold. Use one of the following methods: ● ● Tap "Find Threshold". The instrument evaluates the signal and sets the threshold.
R&S®RTB2000 Serial Bus Analysis UART / RS232 (Option R&S RTB-K2) Note: TX is available only on bus 1. On bus 2, you can set only one "Source" line. The TX line occupies a second bus line. Thus, if TX is used on bus 1, bus 2 is not available. Remote command: BUS:UART:RX:SOURce = BUS:UART:DATA:SOURce on page 427 BUS:UART:TX:SOURce on page 427 Polarity Selects if the transmitted data is high active (high = 1) or low active (low = 1). The setting affects both lines.
R&S®RTB2000 Serial Bus Analysis UART / RS232 (Option R&S RTB-K2) Specifies an individual bit rate with values between 150 and 39,062,500. "User" Remote command: BUS:UART:BAUDrate on page 429 Data Size Sets the number of data bits of a word in a range from 5 to 9 bits. Remote command: BUS:UART:SSIZe on page 428 Idle Time Sets the minimal time between two data frames (packets), that is, between the last stop bit and the start bit of the next frame. Remote command: BUS:UART:BITime on page 429 12.
R&S®RTB2000 Serial Bus Analysis UART / RS232 (Option R&S RTB-K2) 6. If "Pattern" or "Any Symbol" is selected, the UART trigger setup dialog expands to define the serial pattern or the symbol. UART trigger settings Figure 12-18: Trigger setup dialog with an example of a UART serial pattern 55 E6 E (blue) = Hex value of the 1st symbol, with the binary value 01010101 = Hex value of the 2nd symbol, with the binary value 11100110 = Selected nibble in the 2nd symbol.
R&S®RTB2000 Serial Bus Analysis UART / RS232 (Option R&S RTB-K2) "Parity Error" Triggers on a parity error indicating a transmission error. "Pattern" Triggers on a data pattern at a specified position. The pattern setup consists of the "Symbol Offset" on page 204, the "Numb. of Symb." on page 204, and the "Data" on page 204. "Any Symbol" Triggers on a pattern that occurs in one symbol at any position in a frame. See "Data" on page 204.
R&S®RTB2000 Serial Bus Analysis CAN (Option R&S RTB-K3) See also: Chapter 12.1.3, "Bus Table: Decode Results", on page 176 The instrument captures and decodes the signal according to the protocol definition and the configuration settings. The color-coding of the various protocol sections and errors simplifies the interpretation of the visual display. The decode information condenses or expands, depending on the horizontal scale. Various data formats are available to show the result values.
R&S®RTB2000 Serial Bus Analysis CAN (Option R&S RTB-K3) agement. Today, it is also used in many other systems, for example, in industrial machines, aerospace, subsea, merchant marine. ● ● ● ● ● ● The CAN Protocol................................................................................................. 206 CAN Configuration................................................................................................ 207 CAN Trigger..................................................................
R&S®RTB2000 Serial Bus Analysis CAN (Option R&S RTB-K3) CAN data message format The CAN protocol defines two formats for the data frame: the base frame format and the extended frame format. The data frames are built as follows: Figure 12-20: CAN basic frame Figure 12-21: CAN extended frame The following fields, compose the base/extended frame format: ● SOF: start of frame. 1 dominant bit that marks the beginning of the message. ● Identifier: 11/18-bit identifier.
R&S®RTB2000 Serial Bus Analysis CAN (Option R&S RTB-K3) To set up and decode a CAN signal 1. Press the [Protocol] key in the Analysis area of the front panel. 2. Select the bus that you want to use: B1 or B2. 3. Select the "Bus Type" = CAN. 4. Select "Configuration". 5. Select the "Source", the channel to which the input signal is connected. 6. Set the threshold. Use one of the following methods: ● ● Tap "Find Threshold". The instrument evaluates the signal and sets the threshold.
R&S®RTB2000 Serial Bus Analysis CAN (Option R&S RTB-K3) Remote command: CHANnel:THReshold on page 273 CHANnel:THReshold:FINDlevel on page 273 DIGital:THReshold on page 468 Type Selects the CAN-High or CAN-Low line. CAN uses both lines for differential signal transmission. If you measure with a differential probe, connect the probe to both CAN-H and CAN-L lines and select "High". If you use a single-ended probe, connect the probe to either CAN_L or CAN_H and select "High" or "Low" accordingly.
R&S®RTB2000 Serial Bus Analysis CAN (Option R&S RTB-K3) To trigger on CAN signals: 1. Press the [Protocol] key in the Analysis area of the front panel. 2. Select the bus that is configured for CAN. 3. Select "Trigger". This selection has several effects: ● Enables decoding, if necessary. ● Sets the "Trigger Type" to "Serial Bus" and the trigger source to the selected bus. ● Displays the "CAN Trigger" condition in the dialog box, below the protocol setup. 4.
R&S®RTB2000 Serial Bus Analysis CAN (Option R&S RTB-K3) "End of Frame" Triggers on the end of the frame (7 recessive bits). "Frame" Triggers on the frame type that is selected with "Frame" See: "Frame" on page 211. "Error" Triggers on a frame error. An error frame is sent by a node that has detected an error. See: "Error" on page 211. "Identifier" Triggers on a specific message identifier or an identifier range.
R&S®RTB2000 Serial Bus Analysis CAN (Option R&S RTB-K3) Stuff Bit ← Error The following frame segments are coded by the bit stuffing method: ● Start of frame ● Arbitration field ● Control field ● Data field ● CRC sequence The transmitter automatically inserts a complementary bit into the bitstream when it detects five consecutive bits of identical value in the bitstream to be transmitted. A stuff error occurs when the 6th consecutive equal bit level in the mentioned fields is detected.
R&S®RTB2000 Serial Bus Analysis CAN (Option R&S RTB-K3) Bin / Hex pattern ← Identifier condition Defines the identifier or data pattern in binary and hexadecimal format. To set an individual binary bit or hex nibble (half byte), tap it and enter it via the on-screen keypad. "Bin" String containing the binary pattern with a maximum of 64 bits. Characters 0, 1 and X are allowed. "Hex" String containing the hexadecimal pattern with a maximum of 8 bytes. Characters 0 to F and X are allowed.
R&S®RTB2000 Serial Bus Analysis CAN (Option R&S RTB-K3) The instrument captures and decodes the signal according to the protocol definition and the configuration settings. The color-coding of the various protocol sections and errors simplifies the interpretation of the visual display. The decode information condenses or expands, depending on the horizontal scale. Various data formats are available to show the result values.
R&S®RTB2000 Serial Bus Analysis CAN (Option R&S RTB-K3) Remote commands are described in Chapter 15.11.5.3, "CAN - Decode Results", on page 442. 12.5.5 Search on Decoded CAN Data Using the search functionality, you can find the same events in the decoded data which you also can trigger on. Unlike trigger, the search finds all events in an acquisition that fulfill the search condition. The results are listed in a table and and can be saved to file.
R&S®RTB2000 Serial Bus Analysis CAN (Option R&S RTB-K3) CAN search settings Figure 12-25: Settings for search on CAN bus for frames with identifier 567 (hex) that have an error Event Sets the event or combination of events to be searched for. For example, you can search for frames, errors, data, or IDs. Depending on the selected event, additional settings are displayed. Remote command: SEARch:PROTocol:CAN:CONDition on page 448 Frame Setup Selects the frame type to be searched for.
R&S®RTB2000 Serial Bus Analysis CAN (Option R&S RTB-K3) Frame Type Selects the frame type to be searched for, if "Event" = "Identifier" is selected. You can search for data and/or remote frames. Remote command: SEARch:PROTocol:CAN:FTYPe on page 451 Identifier condition Settings to define the identifier pattern, if "Event" = "Identifier" or "Id & Error" or "Id & Data" is selected.
R&S®RTB2000 Serial Bus Analysis CAN (Option R&S RTB-K3) @PROTOCOL_NAME = can # --------------------------------------------------------------------------# Labels for CAN protocol # Column order: Identifier type, Identifier value, Label # --------------------------------------------------------------------------11,064h,Diag_Response 11,1E5h,EngineData 11,0A2h,Ignition_Info 11,1BCh,TP_Console 11,333h,ABSdata 11,313h,Door_Left 11,314h,Door_Right 29,01A54321h,Throttle 29,13A00FA2h,LightState 29,0630ABCDh,En
R&S®RTB2000 Serial Bus Analysis LIN (Option R&S RTB-K3) Figure 12-27: Decoded CAN signal with bus table and applied label list 12.6 LIN (Option R&S RTB-K3) The Local Interconnect Network (LIN) is a simple, low-cost bus system used within automotive network architectures. LIN is usually a sub-network of a CAN bus. The primary purpose of LIN is the integration of uncritical sensors and actuators with low bandwidth requirements.
R&S®RTB2000 Serial Bus Analysis LIN (Option R&S RTB-K3) LIN characteristics Main characteristics of LIN are: ● Single-wire serial communications protocol, based on the UART byte-word interface ● Single master, multiple slaves - usually up to 12 nodes ● Master-controlled communication: master coordinates communication with the LIN schedule and sends identifier to the slaves ● Synchronization mechanism for clock recovery by slave nodes without crystal or ceramics resonator The R&S RTB2000 supports s
R&S®RTB2000 Serial Bus Analysis LIN (Option R&S RTB-K3) ● Checksum error (error in data), parity error (error in identifier) 12.6.2 LIN Configuration The correct setup of the protocol parameters and the threshold is the condition for decoding the signal. To set up and decode a LIN signal 1. Press the [Protocol] key in the Analysis area of the front panel. 2. Select the bus that you want to use: B1 or B2. 3. Select the "Bus Type" = LIN. 4. Select "Configuration". 5.
R&S®RTB2000 Serial Bus Analysis LIN (Option R&S RTB-K3) Remote command: BUS:LIN:DATA:SOURce on page 453 Idle Defines the idle state of the bus. The idle state is the recessive state and corresponds to a logic 1. Remote command: BUS:LIN:POLarity on page 453 Threshold, Find Threshold Set the signal threshold for the source channel. Enter a value, or use "Find Threshold" to set the threshold to the middle reference level of the measured amplitude.
R&S®RTB2000 Serial Bus Analysis LIN (Option R&S RTB-K3) 2. Select the bus that is configured for LIN. 3. Select "Trigger". This selection has several effects: ● Enables decoding, if necessary. ● Sets the "Trigger Type" to "Serial Bus" and the trigger source to the selected bus. ● Displays the "LIN Trigger" condition in the dialog box, below the protocol setup. 4.
R&S®RTB2000 Serial Bus Analysis LIN (Option R&S RTB-K3) LIN Trigger Selects the trigger mode. "Start of Frame" Triggers on the stop bit of the synchronization field. "Wake Up" Triggers after a wakeup frame. "Error" Identifies various errors in the frame. You can select one or more error types as trigger condition. See "Error" on page 224. "Identifier" Sets the trigger to a specific message identifier or an identifier range.
R&S®RTB2000 Serial Bus Analysis LIN (Option R&S RTB-K3) Identifier ← Identifier condition Defines the identifier pattern in binary and hexadecimal format. To set an individual binary bit or hex nibble (half byte), tap it and enter it via the on-screen keypad. "Bin" String containing the binary pattern with a maximum of 64 bits. Characters 0, 1 and X are allowed. "Hex" String containing the hexadecimal pattern with a maximum of 8 bytes. Characters 0 to F and X are allowed.
R&S®RTB2000 Serial Bus Analysis LIN (Option R&S RTB-K3) "Bin" String containing the binary pattern with a maximum of 64 bits. Characters 0, 1 and X are allowed. "Hex" String containing the hexadecimal pattern with a maximum of 8 bytes. Characters 0 to F and X are allowed. Remote command: TRIGger:A:LIN:DATA on page 456 12.6.4 LIN Decode Results When the configuration of the serial bus is complete, the signal can be decoded: 1. In the "Bus" menu, enable "Decode". 2.
R&S®RTB2000 Serial Bus Analysis LIN (Option R&S RTB-K3) Table 12-5: Content of the LIN frame table Column Description Start time Time of frame start in relation to the trigger point ID Identifier value, hexadecimal value Length Number of data bytes Data Hexadecimal values of the data bytes Chks Checksum value State Overall state of the frame. Remote commands are described in Chapter 15.11.6.3, "LIN - Decode Results", on page 456. 12.6.
R&S®RTB2000 Serial Bus Analysis LIN (Option R&S RTB-K3) 3. Press the Search key. 4. Select the "Search Type" = "Protocol". 5. Select the "Source": the bus that is configured for LIN protocol. 6. Select the "Event" you want to search for. 7. Enter additional settings, depending on the event. LIN Search Settings Figure 12-33: Search on LIN bus for frames with identifier 2C (hex) that have an error Event........................................................................................................
R&S®RTB2000 Serial Bus Analysis LIN (Option R&S RTB-K3) Remote command: SEARch:PROTocol:LIN:CHKSerror on page 463 SEARch:PROTocol:LIN:IPERror on page 463 SEARch:PROTocol:LIN:SYERror on page 463 Identifier condition Settings to define the identifier pattern, if "Event" = "Identifier" or "Id & Error" or "Id & Data" is selected. After setting the "Compare" condition, you can enter the identifier value by setting the state high, low, or X (do not care) for each single bit.
R&S®RTB2000 Serial Bus Analysis LIN (Option R&S RTB-K3) # ---------------------------------------------------------------------------# Labels for LIN protocol # Column order: Identifier, Label # ---------------------------------------------------------------------------# Labels for standard addresses 0x3F,Temperature 1Ch,Left brake 20h,Right brake # Following ID is provided as integer 33,Mirror 0x37,Indoor lights # Labels for reserved addresses 0x3C,Master_Request_Frame 0x3D,Slave_Response_Frame # -----
R&S®RTB2000 Serial Bus Analysis LIN (Option R&S RTB-K3) Figure 12-35: Decoded LIN signal with frame table and applied label list gray yellow green blue = = = = synchronization break, synchronization byte, correct checksum identifier parity bits data words (UART words) User Manual 1333.1611.
R&S®RTB2000 Logic Analyzer (Option R&S RTB-B1, MSO) Short Menu for Logic Channels 13 Logic Analyzer (Option R&S RTB-B1, MSO) The Mixed Signal Option R&S RTB -B1 adds logic analyzer functions to the classical oscilloscope functions. Using the logic analyzer, you can analyze and debug embedded systems with mixed-signal designs that use analog signals and time-correlated digital signals simultaneously. The option provides 16 logic channels grouped in two logic probes (pods) with 8 channels each.
R&S®RTB2000 Logic Analyzer (Option R&S RTB-B1, MSO) Short Menu for Logic Channels 1 2 3 4 5 6 = = = = = = selects all/one logic channel displays the logic channel scales all visible channels to a minimum scales all visible channels to a maximum shows the threshold of the channels shows the activity of the logic channel Logic channels - activity display The activity symbols of the logic channel show the current status of all logic channels and can have the following values: ● : logic channel is low ●
R&S®RTB2000 Logic Analyzer (Option R&S RTB-B1, MSO) Logic Analyzer Settings 13.2 Logic Analyzer Settings Prerequisite: a logic probe is connected to the instrument. 1. If logic analysis is not active, press the [Logic] key to activate it. 2. Press the [Logic] key again. The "Logic" menu opens. 3. Select the "Logic Probe" that you want to use. 4. Enable the "State". 5. Set the "Threshold", and the "Hysteresis". Logic Probe Selects the logic probe (pod) to be configured: "D7...D0" or "D15...D8".
R&S®RTB2000 Logic Analyzer (Option R&S RTB-B1, MSO) Logic Analyzer Settings "ECL: -1.3V" Sets the threshold to -1.3 V, which is typically used in emitter-coupled logic (ECL). "User Level" Selects the user-defined threshold. Enter the value in User Level. Remote command: DIGital:TECHnology on page 467 LOGic:THReshold on page 467 LOGic
:THReshold:UDLevel on page 467 User Level Sets the threshold level value between -2 V and +8 V in steps of 10 mV, or shows the value of the selected technology.
R&S®RTB2000 Logic Analyzer (Option R&S RTB-B1, MSO) Parallel Buses 13.3 Triggering on Logic Channels Each logic channel can be used as trigger source. Using the pattern trigger, you can trigger on logical combinations of analog and digital channels. Also, you can define a trigger holdoff time. If you trigger on logic channels, the threshold is used as trigger level.
R&S®RTB2000 Logic Analyzer (Option R&S RTB-B1, MSO) Parallel Buses 13.5.1 Parallel Bus Configuration You can configure a parallel bus or a parallel clocked bus. For the parallel clocked bus, a clock line and an optional chip select line are defined in addition to the other settings. Access: [Protocol] > "Bus Type" = "Parallel" / "Parallel Clocked" > "Configuration" The following configuration menu opens: Figure 13-1: Configuration menu Parallel bus User Manual 1333.1611.
R&S®RTB2000 Logic Analyzer (Option R&S RTB-B1, MSO) Parallel Buses Figure 13-2: Configuration menu Parallel clocked bus The menus offer the following settings: Bus Width....................................................................................................................238 Thresholds.................................................................................................................. 238 Source.....................................................................................
R&S®RTB2000 Logic Analyzer (Option R&S RTB-B1, MSO) Parallel Buses Remote command: DIGital:THReshold on page 468 Source Selects the input line for each bit of the parallel or clocked parallel bus. If you use a clocked parallel bus, in the last two lines you can select the source for the "Clock" and "CS".
R&S®RTB2000 Logic Analyzer (Option R&S RTB-B1, MSO) Parallel Buses Figure 13-3: Decoded Parallel bus signal with bus table Figure 13-4: Decoded Parallel clocked bus signal The bus table shows the data of decoded frames and the corresponding start time. Remote commands are described in Chapter 15.12.2.3, "Parallel Buses - Decode Results", on page 474. User Manual 1333.1611.
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Function Generator 14 Signal Generation (Option R&S RTB-B6) The R&S RTB2000 has an integrated function and pattern generator which can generate signals while testing circuits, for instance. The waveform generator can output simple functions, modulated sine waveform, arbitrary waveforms and sweep waveforms. The integrated pattern generator can generate individual or cycle patterns and simple bus signal patterns. 14.
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Function Generator Output Enables the function generator. Remote command: WGENerator:OUTPut[:ENABle] on page 482 Function Selects the type of waveform to be generated. For all waveforms, you can set the Frequency, Amplitude, Offset, and Noise. "DC" Generates a direct current (DC) signal. "Sine" Generates a sine wave. "SinC" Generates a cardinal sine wave. "Rectangle" Generates a square wave. "Pulse" Generates a pulse signal.
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Function Generator "Exponential" Generates an exponential rise signal. You can set the Polarity. Remote command: WGENerator:FUNCtion on page 477 Frequency Sets the frequency of the waveform. The available frequency range depends on the selected function. For more details refer to the datasheet. Remote command: WGENerator:FREQuency on page 478 Polarity Sets the polarity.
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Function Generator Sweep Opens a menu to configure the sweep. See Chapter 14.1.2, "Sweep Settings", on page 244. Modulation Opens a menu to configure the modulation. See Chapter 14.1.3, "Modulation Settings", on page 245. Invert Inverts the waveform at the offset level. Load Select the user load, the load of the DUT at its connection. You can select either a "50Ω" or a "High-Z" (high input impedance) load.
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Function Generator Stop Frequency Sets the stop frequency of the sweep signal. Remote command: WGENerator:SWEep:FEND on page 482 Sweep Time Sets the duration of the sweep. Remote command: WGENerator:SWEep:TIME on page 482 Sweep Sets the type of the sweep, a linear, logarithmic or triangle-shaped change of the frequency. Remote command: WGENerator:SWEep:TYPE on page 483 14.1.
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Function Generator "FM" Frequency modulation. The frequency of the carrier signal is varied according to the modulation signal. "ASK" Amplitude shift keying (ASK) modulation. The amplitude switches between 100% and the "ASK Depth" amplitude with a defined modulating "Frequency". "FSK" Frequency shift keying (FSK) modulation. The signal frequency switches between the carrier "Frequency" and the "Hop. Frequency" at a "FSK Rate".
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Function Generator Hop. Frequency Sets the second frequency of the FSK-modulated signal. Remote command: WGENerator:MODulation:FSK:HFREquency on page 481 FSK Rate Sets the rate at which signal switches between the carrier frequency and the hopping frequency. Remote command: WGENerator:MODulation:FSK:RATE on page 481 14.1.4 Arbitrary Setup Settings An arbitrary waveform is copied from an existing waveform on the the instrument, or loaded from file.
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Pattern Generator Remote command: WGENerator:ARBitrary[:FILE]:NAME on page 479 WGENerator:ARBitrary[:FILE]:OPEN on page 479 14.2 Pattern Generator The pattern generator outputs parallel patterns on the four pins P0 to P3 on the front panel of the instrument. 1. Press the [Apps Selection] key. 2. Tap "Pattern Gen.". A dialog box shows the pins, on which the pattern is output, depending on the selected pattern. 14.2.
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Pattern Generator "Counter" Generates a 4-bit wide counter pattern at pins P0 to P3. "Arbitrary" Creates, saves or loads an arbitrary 4-bit wide pattern and outputs it at pins P0 to P3. "Manual" Sets the high or low state for each pin. "UART, SPI, I2C, CAN, LIN, Audio -I2S, Audio- TDM" Generates a bus signal for measurements without measurement object. Remote command: PGENerator:FUNCtion on page 483 14.2.
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Pattern Generator Remote command: PGENerator:PATTern:SQUarewave:POLarity on page 488 Duty Cycle Sets the duty cycle of the square wave from 1% to 99%.The duty cycle expresses for what percentage of the period, the signal state is high. Remote command: PGENerator:PATTern:SQUarewave:DCYCle on page 488 14.2.3 Settings for Counter Pattern Access: "Menu" > "Pattern Gen.
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Pattern Generator 14.2.4.1 General Settings Save Opens a dialog box to save a waveform as an ARB pattern. The text files contatining remote commands are saved in *.scp format. You can select the "Location" to which the waveform file (internal or USB) is saved. Tap "Save" to save the file under the current name. Tap "New File" and enter the name of the new file you want to save. You can also delete obsolete files in the dialog box.
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Pattern Generator 14.2.4.2 Pattern Setup Pattern Length Sets the pattern length, the number of samples for the pattern. Remote command: PGENerator:PATTern:ARBitrary:DATA:LENGth on page 487 Index Selects a sample. The selected sample is shown in the information box as a light blue line. Around the index, ±8 bits are displayed. Remote command: PGENerator:PATTern:ARBitrary:DATA:APPend:INDex on page 487 Value Sets the value of the currently selected "Index".
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Pattern Generator 14.2.4.3 Timing Setup Bit Time Sets the time at which each sample is applied. The time is identical for all samples. Remote command: PGENerator:PATTern:STIMe on page 484 Period Sets the period of the sample. It applies to the whole pattern. Period= Pattern Length * Bit Time Remote command: PGENerator:PATTern:PERiod on page 485 Burst If activated, the instrument pauses after each issued pattern for the duration of the "Idle Time".
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Pattern Generator 14.2.5 Settings for Manual Pattern Access: "Menu" > "Pattern Gen." > "Pattern" = "Manual" P0/P1/P2/P3 Sets the states to high or low for the respective pin of the manual pattern. Remote command: PGENerator:MANual:STATe on page 489 14.2.6 Settings for Serial Buses You can use the pattern generator to generate signals according to serial protocols (bus signals).
R&S®RTB2000 Signal Generation (Option R&S RTB-B6) Pattern Generator Data Rate Select the data rate of the bus signal. The following values are available for the specific bus: ● ● ● ● ● UART: 9600 Bit/s, 115.2 kBit/s, 1 MBit/s SPI: 100 kBit/s, 250 kBit/s, 1 MBit/s I2C: 100 kBit/s, 400 kBit/s, 1000 kBit/s, 3400 kBit/s CAN: 50 kBit/s, 100 kBit/s, 1 MBit/s LIN: 9.6 kBit/s, 10.417 kBit/s, 19.200 kBit/s Active Sets the polarity for the UART bus. User Manual 1333.1611.
R&S®RTB2000 Remote Control Commands Conventions used in Command Description 15 Remote Control Commands This chapter provides the description of all remote commands available for R&S RTB2000. The commands are sorted according to the menu structure of the instrument. A list of commands in alphabetical order ist given in the "List of Commands" at the end of this documentation.
R&S®RTB2000 Remote Control Commands Programming Examples If not specified otherwise, a parameter can be used to set a value and it is the result of a query. Parameters required only for setting are indicated as Setting parameters. Parameters required only to refine a query are indicated as Query parameters. Parameters that are only returned as the result of a query are indicated as Return values. ● Conformity Commands that are taken from the SCPI standard are indicated as SCPI confirmed.
R&S®RTB2000 Remote Control Commands Programming Examples HCOP:LANG PNG HCOP:COL:SCH COL MMEM:NAME "COLORED" HCOP:IMM HCOP:COL:SCH GRAY MMEM:NAME "GRAY" HCOP:IMM MMEM:CAT? "*.PNG" MMEM:DATA? "GRAY.PNG" 15.2.1.2 Saving, Copying, and Loading Setup Data Save instrument settings to a file on internal storage device, duplicate this file and save it to a USB stick attached to the front panel. Finally, there are three setup files on the internal storage /INT/SETTINGS, and one file on the USB flash device.
R&S®RTB2000 Remote Control Commands Programming Examples MMEM:CDIR "/INT/SETTINGS" MMEM:LOAD:STAT 1,"ZOOM_USB.SET" 15.2.1.3 // Load settings Reading Waveform Data in Real Format Set data format and sample range, read channel header and data. Command description in Chapter 15.9.1, "Transfer of Waveform Data", on page 368. * Connected to: TCPIP0::192.168.1.1::inst0::INSTR SYST:ERR? <-- 0,"No error" *IDN? <-- Rohde&Schwarz,RTB2004,1333.1005K04/101489,02.
R&S®RTB2000 Remote Control Commands Programming Examples FORM UINT,8;FORM? <-- UINT,8 CHAN:DATA:YINC? <-- // Set data format to unsigned integer, 8 bit // Read voltage value per bit 1.999999949E-4 CHAN:DATA? // Read channel data <-- // 5000 bytes total 128,125,120... FORM UINT,16;FORM? <-- CHAN:DATA:YINC? <-- // Read voltage value per bit 7.812499803E-7 CHAN:DATA? <-- // Change data format to unsigned integer, 16 bit UINT,16 // Read channel data 32768,32000,30720...
R&S®RTB2000 Remote Control Commands Programming Examples yIncrement * byteValuen 8-bit data 16-bit data Result 2e-4 * 128 7,8125E-7 * 32768 0,0256 V 2e-4 * 125 7,8125E-7 * 32000 0,025 V In the reverse case, if a 16-bit waveform is read with 8-bit data format, data precision may be reduced. Data values ar truncated, and only the more significiant bits remain. For example, the 16-bit data 0xabcd is read 0xab in 8-bit format, and cd is lost. 15.2.
R&S®RTB2000 Remote Control Commands Programming Examples taining the length of the data followed by the data in raw binary format. Here, m is the length of the data in byte, and n is the number of digits in m. The firmware update file can be split into multiple blocks, where each block has to be transferred with the above command. You can also transfer the file in a single block. Example to send all data at once, without CRC: DUT#sendRAW DIAG:UPD:TRAN:DATA 0,0,#822393104 DUT#sendFileContent "W:\RTB2004.
R&S®RTB2000 Remote Control Commands Common Commands 15.2.4 Function Generator Configure and output a sine waveform. Command description in: Chapter 15.13.1, "Function Generator", on page 476. *RST :WGEN:FUNC SIN // Selects Sine function :WGEN:VOLT 700E-3 // Sets the amplitude :WGEN:FREQ 1.00E+06 // Sets the frequency :WGEN:OUTP:LOAD R50 // Sets the user load :WGEN:OUTP 1 // Outputs the sine waveform 15.3 Common Commands Common commands are described in the IEEE 488.2 (IEC 625-2) standard.
R&S®RTB2000 Remote Control Commands Common Commands Usage: Setting only *ESE Event status enable Sets the event status enable register to the specified value. The query returns the contents of the event status enable register in decimal form. Parameters: Range: 0 to 255 *ESR? Event status read Returns the contents of the event status register in decimal form and subsequently sets the register to zero.
R&S®RTB2000 Remote Control Commands Common Commands Queries the options included in the instrument. For a list of all available options and their description refer to the data sheet. Return values: Usage: The query returns a list of options. The options are returned at fixed positions in a comma-separated string. A zero is returned for options that are not installed.
R&S®RTB2000 Remote Control Commands Waveform Setup Usage: Query only *TRG Trigger Triggers all actions waiting for a trigger event. In particular, *TRG generates a manual trigger signal. This common command complements the commands of the TRIGger subsystem. Usage: Event *WAI Wait to continue Prevents servicing of the subsequent commands until all preceding commands have been executed and all signals have settled (see also command synchronization and *OPC). Usage: Event 15.
R&S®RTB2000 Remote Control Commands Waveform Setup SINGle..........................................................................................................................267 RUNSingle.................................................................................................................... 267 ACQuire:NSINgle:COUNt................................................................................................267 STOP........................................................................
R&S®RTB2000 Remote Control Commands Waveform Setup Parameters: RUN | STOPping | COMPlete | BREak RUN Set: Starts the acquisition. Read: The acquisition is running. STOPping Set: Stops the acquisition when it is finished. Read: Acquisition is stopped. COMPlete Set: Not available. Read: The current acquisition is finished and completed. BREak Set: Immediate interrupt of current acquisition. Read: acquisition is finished but interrupted. 15.4.3 Vertical Settings CHANnel:STATe.........
R&S®RTB2000 Remote Control Commands Waveform Setup CHANnel:AON Switches all analog channels on. Suffix: . The suffix is irrelevant. Usage: Event CHANnel:AOFF Switches all analog channels off. Suffix: . The suffix is irrelevant. Usage: Event CHANnel:SCALe Sets the vertical scale for the indicated channel. Suffix: Parameters: . 1..4 Selects the input channel. The number of channels depends on the instrument. Scale value, given in Volts per division.
R&S®RTB2000 Remote Control Commands Waveform Setup CHANnel:OFFSet Sets the offset voltage, which is subtracted to correct an offset-affected signal. Suffix: Parameters: . 1..4 Selects the input channel. The number of channels depends on the instrument. Offset value Range: Increment: *RST: Default unit: Depend on vertical scale and probe attenuation. Depends on vertical scale and probe attenuation.
R&S®RTB2000 Remote Control Commands Waveform Setup Parameters: FULL | B20 FULL Use full bandwidth. B20 Limit to 20 MHz. Higher frequencies are removed to reduce noise. *RST: FULL CHANnel:POLarity Turns the inversion of the signal amplitude on or off. To invert means to reflect the voltage values of all signal components against the ground level. Inversion affects only the display of the signal but not the trigger. Suffix: Parameters: . 1..
R&S®RTB2000 Remote Control Commands Waveform Setup Suffix: Parameters: . 1..4 Selects the input channel. The number of channels depends on the instrument. *RST: 0 Default unit: V CHANnel:WCOLor Selects the color scale for the waveform color. Each scale comprises a set of colors, where each color represents a certain frequency of occurrence. Suffix: Parameters: . 1..4 Selects the input channel. The number of channels depends on the instrument.
R&S®RTB2000 Remote Control Commands Waveform Setup Example: CHANnel2:OVERload? Queries the overload status of channel 2. CHANnel2:OVERload OFF Resets the overload status bit. CHANnel:THReshold Threshold value for digitization of analog signals. If the signal value is higher than the threshold, the signal state is high (1 or true for the Boolean logic). Otherwise, the signal state is considered low (0 or false) if the signal value is below the threshold.
R&S®RTB2000 Remote Control Commands Waveform Setup CHANnel:LABel
R&S®RTB2000 Remote Control Commands Waveform Setup Suffix: . 1..4 Selects the input channel. The number of channels depends on the instrument. Parameters: Range: *RST: 0.0001 to 10000 1 PROBe:SETup:GAIN:UNIT Selects the unit that the probe can measure. Suffix: Parameters: . 1..4 Selects the input channel. The number of channels depends on the instrument. V|A PROBe:SETup:GAIN:MANual Sets the gain of the probe.
R&S®RTB2000 Remote Control Commands Waveform Setup Parameters: Range: 1e-9 to 50; lower limits are possible if zoom or FFT is enabled. Increment: 1e-9 *RST: 100e-6 Default unit: s/div TIMebase:POSition Defines the trigger position, the time distance from the trigger point to the reference point (trigger offset). The trigger point is the zero point of the diagram. Changing the horizontal position, you can move the trigger, even outside the screen.
R&S®RTB2000 Remote Control Commands Waveform Setup Parameters: Range and increment depend on time base and other settings Range: 250e-12 to 500 Increment: 1e-12 Default unit: s TIMebase:DIVisions? Queries the number of horizontal divisions on the screen. Return values: Returns 12 divisions. Usage: Query only TIMebase:RATime? Queries the real acquisition time used in the hardware.
R&S®RTB2000 Remote Control Commands Waveform Setup If you set a specific value with ACQuire:POINts[:VALue], the automatic assignment of a record length is turned off. Parameters: ON | OFF Example: ACQ:POIN:AUT ON TIM:SCAL 1e-9 ACQ:POIN?;:SYST:ERR:ALL? -> received 10000;0,"No error" TIM:SCAL 5e-3 ACQ:POIN?;:SYST:ERR:ALL? -> received 20000000;0,"No error" ACQuire:POINts[:VALue] Defines a record length value, the number of recorded waveform points in a segment.
R&S®RTB2000 Remote Control Commands Waveform Setup Suffix: Parameters: . 1..4 The command affects all channels regardless of the indicated channel number. The suffix can be omitted. SAMPle | PDETect | HRESolution SAMPle Input data is acquired with a sample rate which is aligned to the time base (horizontal scale) and the record length. PDETect Peak Detect: the minimum and the maximum of n samples in a sample interval are recorded as waveform points.
R&S®RTB2000 Remote Control Commands Waveform Setup Parameters: OFF | ENVelope | AVERage OFF The data of the current acquisition is recorded according to the decimation settings. ENVelope Detects the minimum and maximum values in an sample interval over a number of acquisitions. AVERage Calculates the average from the data of the current acquisition and a number of acquisitions before. The number of used acquisitions is set with ACQuire:AVERage:COUNt.
R&S®RTB2000 Remote Control Commands Waveform Setup Parameters: Range: *RST: 2 to 100,000 2 ACQuire:AVERage:RESet Deletes the waveform and restarts the average calculation. Usage: Event ACQuire:AVERage:COMPlete? Returns the state of averaging. Return values: 0 | 1 0 The number of acquired waveforms is less than the number required for average calculation. See ACQuire:AVERage: COUNt on page 280.
R&S®RTB2000 Remote Control Commands Waveform Setup See also: "Interpolation" on page 54 Parameters: SINX | LINear | SMHD LINear Linear interpolation between two adjacent sample points. SINX Interpolation by means of a sin(x)/x curve. SMHD Sample & hold causes a histogram-like interpolation. *RST: SINX ACQuire:POINts:ARATe? Retrieves the sample rate of the ADC, that is the number of points that are sampled by the ADC in one second.
R&S®RTB2000 Remote Control Commands Trigger ● CHANnel:DATA:YORigin? on page 378 ● CHANnel:DATA:YRESolution? on page 379 ● CHANnel:DATA:ENVelope:XINCrement? on page 377 ● CHANnel:DATA:ENVelope:XORigin? on page 377 ● CHANnel:DATA:ENVelope:YINCrement? on page 378 ● CHANnel:DATA:ENVelope:YORigin? on page 378 ● CHANnel:DATA:ENVelope:YRESolution? on page 379 15.5 Trigger ● ● ● ● ● ● ● General Trigger Settings.....................................................................
R&S®RTB2000 Remote Control Commands Trigger TRIGger:A:SOURce Sets the trigger source for the selected A trigger type. Parameters: CH1 | CH2 | CH3 | CH4 | EXTernanalog | LINE | SBUS1 | SBUS2 | D0..D15 CH1 | CH2 | CH3 | CH4 One of the analog input channels is the trigger source. Available channels depend on the instrument type.
R&S®RTB2000 Remote Control Commands Trigger Parameters: TIME | OFF *RST: Off TRIGger:A:HOLDoff:TIME Defines the holdoff time. The next trigger occurs only after the holdoff time has passed. Parameters: Default unit: s 15.5.2 Edge Trigger TRIGger:A:EDGE:SLOPe............................................................................................... 285 TRIGger:A:LEVel[:VALue]...............................................................................
R&S®RTB2000 Remote Control Commands Trigger TRIGger:A:FINDlevel Sets the trigger level to 50% of the signal amplitude. Usage: Event TRIGger:A:EDGE:COUPling Sets the coupling for the trigger source. Parameters: DC | AC | LFReject DC Direct current coupling. The trigger signal remains unchanged. AC Alternating current coupling. A highpass filter removes the DC offset voltage from the trigger signal. LFReject Sets the trigger coupling to high frequency.
R&S®RTB2000 Remote Control Commands Trigger Parameters: ON | OFF *RST: OFF TRIGger:A:EDGE:FILTer:NREJect Turns an additional 100 MHz lowpass filter in the trigger path on or off. This filter removes higher frequencies and is available with AC and DC coupling. To folter out higher frequencies, you can use either this command or TRIGger:A: EDGE:FILTer:HFReject. Parameters: ON | OFF *RST: OFF 15.5.
R&S®RTB2000 Remote Control Commands Trigger Parameters: WITHin | OUTSide | SHORter | LONGer WITHin | OUTSide Triggers on pulses inside or outside a range defined by time ± delta. The time is specified with TRIGger:A:WIDTh:WIDTh, the range around is defined with TRIGger:A:WIDTh:DELTa. To trigger on an exact value ("Width =" or "Width ≠", set the range to 0 ("Variation", TRIGger:A:WIDTh:DELTa). SHORter | LONGer Triggers on pulses shorter or longer than a time set with TRIGger:A:WIDTh:WIDTh.
R&S®RTB2000 Remote Control Commands Trigger TRIGger:A:TV:STANdard Selects the color television standard. Parameters: PAL | NTSC | SECam | PALM | I576 | P720 | P1080 | I1080 PALM = PAL-M I576 = SDTV 576i (PAL and SECAM) P720 | P1080 = HDTV 720/1080p (progressive scanning) I1080 = HDTV 1080i (interlaced scanning) *RST: PAL TRIGger:A:TV:POLarity Selects the polarity of the signal. Note that the sync pulse has the opposite polarity.
R&S®RTB2000 Remote Control Commands Trigger TRIGger:A:TV:LINE Sets an exact line number if TRIGger:A:TV:FIELd is set to LINE. Parameters: Range: 1 to 525 (NTSC, PAL-M); 625 (PAL, SECAM, SDTV I-576); 750 (HDTV P720); 1125 (HDTV I1080, HDTV P1080) Increment: 1 *RST: 1 15.5.5 Pattern Trigger ● ● 15.5.5.1 Pattern Definition...................................................................................................290 Time Limitation.....................................................
R&S®RTB2000 Remote Control Commands Trigger Parameters: AND | OR AND The required states of all channels must appear in the input signal at the same time. OR At least one of the channels must have the required state. *RST: AND TRIGger:A:PATTern:CONDition Defines whether the instrument triggers on fulfillment of the logical condition, or on violation. Parameters: ""TRUE"" | ""FALSE"" String parameter *RST: 15.5.5.
R&S®RTB2000 Remote Control Commands Trigger Parameters: WITHin | OUTSide | SHORter | LONGer WITHin Triggers if the pattern condition remains unchanged longer than Time - Delta and shorter than Time + Delta. OUTSide Triggers if the pattern condition remains unchanged either shorter than Time - Delta or longer than Time + Delta. SHORter | LONGer Triggers if the pattern condition changes before or after the specified time.
R&S®RTB2000 Remote Control Commands Waveform Analysis Parameters: HIGH | LOW | EITHer HIGH The signal level stays above the trigger level. LOW The signal level stays below the trigger level. EITHer The signal level stays above or below the trigger level. *RST: HIGH TRIGger:A:TIMeout:TIME
R&S®RTB2000 Remote Control Commands Waveform Analysis Parameters: ON | OFF *RST: OFF TIMebase:ZOOM:SCALe Defines the horizontal scale for the zoom window in seconds per division, the timebase of the zoom window. The scaling determines the width of the zoom area (12 divisions * scaling per division).
R&S®RTB2000 Remote Control Commands Waveform Analysis ● CALCulate:QMATh:DATA:XINCrement? on page 377 ● CALCulate:QMATh:DATA:XORigin? on page 377 ● CALCulate:QMATh:DATA:YINCrement? on page 378 ● CALCulate:QMATh:DATA:YORigin? on page 378 ● CALCulate:QMATh:DATA:YRESolution? on page 379 CALCulate:QMATH:STATe.............................................................................................. 295 CALCulate:QMATh:SOURce........................................................................
R&S®RTB2000 Remote Control Commands Waveform Analysis Parameters: Position value, given in divisions. CALCulate:QMATh:SCALe Sets the vertical scale of the math waveform. Parameters: Scale value, given in Volts per division 15.6.3 Reference Waveforms In all REFCurve:... commands, the suffix selects the reference waveform.
R&S®RTB2000 Remote Control Commands Waveform Analysis Parameters: CH1 | CH2 | CH3 | CH4 | QMA | RE1 | RE2 | RE3 | RE4 | D70 | D158 | SPEC | MINH | MAXH | AVER CH1 | CH2 | CH3 | CH4 | QMA | RE1 | RE2 | RE3 | RE4 Any active channel, math, or reference waveform. CH3 and CH4 are only available with 4-channel R&S RTB2000 oscilloscopes. D70 | D158 Logic probes, sources require MSO option R&S RTB-B1. SPEC | MINH | MAXH | AVER FFT waveforms: spectrum, min hold, max hold, average.
R&S®RTB2000 Remote Control Commands Waveform Analysis REFCurve:SAVE Stores the reference waveform in the specified file. Suffix: . 1..4 Selects the reference waveform. Setting parameters: String with path and file name Usage: Setting only REFCurve:LOAD Loads the waveform data from the indicated reference file to the reference waveform. To load the correspondent instrument settings, use REFCurve:LOAD:STATe on page 298. Suffix: . 1..
R&S®RTB2000 Remote Control Commands Waveform Analysis REFCurve:HORizontal:SCALe Changes the horizontal scale (timebase) of the reference waveform independently of the channel waveform settings. Suffix: Parameters: . 1..4 Selects the reference waveform. Default unit: s/div REFCurve:VERTical:POSition Changes the vertical position of the reference waveform. Suffix: Parameters: . 1..4 Selects the reference waveform.
R&S®RTB2000 Remote Control Commands Waveform Analysis Suffix: Parameters: . 1..4 Selects the reference waveform. String parameter String parameter Example: REFCurve2:LABel "Origin" Sets the label "Origin" for reference R2. 15.6.4 Search ● ● ● ● ● ● ● ● ● 15.6.4.1 General Search Settings....................................................................................... 300 Edge Search Configuration.................................................................................
R&S®RTB2000 Remote Control Commands Waveform Analysis SEARch:CONDition Parameters: EDGE | WIDTh | PEAK | RUNT | RTIMe | DATatoclock | PATTern | PROTocol EDGE An edge search result is found when the waveform passes the given level in the specified direction. WIDTH A width search finds pulses with an exact pulse width, or pulses shorter or longer than a given time, or pulses inside or outside the allowable time range.
R&S®RTB2000 Remote Control Commands Waveform Analysis SEARch:SOURce Selects the waveform to be analyzed. Parameters: CH1 | CH2 | CH3 | CH4 | QMA | RE1 | RE2 | RE3 | RE4 Any active channel, math, or reference waveform can be searched. For protocol search on CAN and LIN signals, an active serial bus is the search source. *RST: Example: 15.6.4.2 CH1 Chapter 15.2.3.
R&S®RTB2000 Remote Control Commands Waveform Analysis 15.6.4.3 Width Search Configuration SEARch:TRIGger:WIDTh:POLarity.................................................................................. 303 SEARch:TRIGger:WIDTh:LEVel...................................................................................... 303 SEARch:TRIGger:WIDTh:LEVel:DELTa............................................................................ 303 SEARch:TRIGger:WIDTh:RANGe...............................................
R&S®RTB2000 Remote Control Commands Waveform Analysis Parameters: WITHin | OUTSide | SHORter | LONGer WITHin Finds pulses inside the range width ± Δt. OUTSide Finds pulses outside the range width ± Δt. SHORter Finds pulses shorter than the given width. LONGer Finds pulses longer than the given width. *RST: Example: WITH Chapter 15.2.3.1, "Searching for a Pulse of Specified Width", on page 262 SEARch:TRIGger:WIDTh:WIDTh Sets the reference pulse width, the nominal value for comparisons.
R&S®RTB2000 Remote Control Commands Waveform Analysis SEARch:MEASure:LEVel:PEAK:MAGNitude Sets the peak-to-peak limit. If the signal exceeds this limit, a search event is listed. Parameters: 15.6.4.5 Default unit: V Rise/Fall Time Search Configuration SEARch:TRIGger:RISetime:SLOPe................................................................................. 305 SEARch:TRIGger:LEVel:RISetime:LOWer........................................................................
R&S®RTB2000 Remote Control Commands Waveform Analysis To set the range ± Δt, use SEARch:TRIGger:RISetime:DELTa. Parameters: LONGer | SHORter | WITHin | OUTSide LONGer Finds rise/fall times longer than the given time. SHORter Finds rise/fall times shorter than the given time. WITHin Finds rise/fall times inside the range time ± Δt. OUTSide Finds rise/fall times outside the range time ± Δt.
R&S®RTB2000 Remote Control Commands Waveform Analysis Parameters: POSitive | NEGative | EITHer *RST: POS SEARch:TRIGger:LEVel:RUNT:LOWer Sets the lower voltage threshold for runt detection. A positive runt crosses the lower level twice without crossing the upper level. Parameters: *RST: 400 mV Default unit: V SEARch:TRIGger:LEVel:RUNT:UPPer Sets the upper voltage threshold for runt detection.
R&S®RTB2000 Remote Control Commands Waveform Analysis Parameters: Range: Depends on various settings, mainly time base and sample rate *RST: 400e-6 Default unit: s SEARch:TRIGger:RUNT:DELTa Sets a range Δt to the reference pulse width set with SEARch:TRIGger:RUNT:WIDTh , if SEARch:TRIGger:RUNT:RANGe is set to WITHin or OUTSide. Parameters: 15.6.4.
R&S®RTB2000 Remote Control Commands Waveform Analysis Parameters: Range: Depends on vertical scale SEARch:TRIGger:DATatoclock:CLEVel:DELTa SEARch:TRIGger:DATatoclock:DLEVel:DELTa Set a hysteresis range to the clock and data levels in order to avoid unwanted search results caused by noise oscillation around the level.
R&S®RTB2000 Remote Control Commands Waveform Analysis SEARch:TRIGger:PATTern:WIDTh:RANGe.......................................................................311 SEARch:TRIGger:PATTern:WIDTh[:WIDTh]...................................................................... 311 SEARch:TRIGger:PATTern:WIDTh:DELTa.........................................................................311 SEARch:TRIGger:PATTern:SOURce Specifies the search pattern - the state for each channel.
R&S®RTB2000 Remote Control Commands Waveform Analysis SEARch:TRIGger:PATTern:LEVel:DELTa Sets a hysteresis range to the threshold of the specified source channel to avoid unwanted search results caused by noise oscillation around the level. Suffix: Parameters: . 1..4 Selects the input channel. The number of channels depends on the instrument.
R&S®RTB2000 Remote Control Commands Waveform Analysis 15.6.4.9 Search Results SEARch:RESult:BCOunt?...............................................................................................312 SEARch:RESDiagram:SHOW......................................................................................... 312 SEARch:RESult:ALL?.....................................................................................................312 SEARch:RESult?.......................................................
R&S®RTB2000 Remote Control Commands Waveform Analysis Example: SEARch:RESult:ALL? Returns all four results of a peak search: 1,-4.7750e-04,0,PEAK,NEGATIVE,-1.530e-02,2, -4.4630e-04,0,PEAK,NEGATIVE,-1.530e-02,3, -4.1660e-04,0,PEAK,NEGATIVE,-1.530e-02,4, -3.8690e-04,0,PEAK,NEGATIVE,-1.530e-02 Example: Chapter 15.2.3.1, "Searching for a Pulse of Specified Width", on page 262 Usage: Query only SEARch:RESult? Returns the result values of the specified search result.
R&S®RTB2000 Remote Control Commands Waveform Analysis Parameters: Example: String parameter EXPort:SEARch:NAME "/USB_FRONT/SEARCH/RESULT" On first save, the search results are saved to RESULT.CSV, on second save to RESULT01.CSV, the third to RESULT02.CSV ... EXPort:SEARch:SAVE Saves the search results to the path and file defined by EXPort:SEARch:NAME. Usage: Setting only 15.6.5 History (Option R&S RTB-K15) ● ● ● ● 15.6.5.1 History Settings..................................................
R&S®RTB2000 Remote Control Commands Waveform Analysis Example: ACQ:POIN:AUT ON TIM:SCAL 1e-9 ACQ:POIN?;:SYST:ERR:ALL? -> received 10000;0,"No error" TIM:SCAL 5e-3 ACQ:POIN?;:SYST:ERR:ALL? -> received 20000000;0,"No error" ACQuire:POINts[:VALue] Defines a record length value, the number of recorded waveform points in a segment. The command turns ACQuire:POINts:AUTomatic OFF. If ACQuire:POINts:AUTomatic is turned ON, the query ACQuire:POINts? returns the automatically set record length.
R&S®RTB2000 Remote Control Commands Waveform Analysis ACQuire:NSINgle:COUNt Sets the number of waveforms acquired with RUNSingle. Parameters: Number of waveforms. Range: *RST: 1 to maximum number that depends on the record length. 1 ACQuire:AVAilable? Returns the number of segments that are currently saved in the memory. This number is available for history viewing.
R&S®RTB2000 Remote Control Commands Waveform Analysis BUS:HISTory:CONTrol:ENABle].................................................................................317 DIGital:HISTory:CONTrol:ENABle].............................................................................317 LOGic:HISTory:CONTrol:ENABle].............................................................................. 317 CHANnel:HISTory:CONTrol:[ENABle]........................................................................
R&S®RTB2000 Remote Control Commands Waveform Analysis BUS:HISTory:CURRent DIGital:HISTory:CURRent LOGic:HISTory:CURRent SPECtrum:HISTory:CURRent CHANnel:HISTory:CURRent Accesses a particular history segment in the memory to display it. The query returns the index of the segment that is shown. Parameters: Segment index. There are two ways to enter the index.
R&S®RTB2000 Remote Control Commands Waveform Analysis SPECtrum:HISTory:STOP CHANnel:HISTory:STOP Sets the index of the latest segment to be displayed. Parameters: Stop index. You can enter a positive or negative index, see CHANnel:HISTory:CURRent.
R&S®RTB2000 Remote Control Commands Waveform Analysis ● Query for the timestamp of a specific segment using ...:HISTory:... commands. Select the segment of interest using CHANnel:HISTory:CURRent appropriate command. The commands in this chapter use numeric suffixes: ● CHANnel: Selects the analog input channel. ● DIGital: Selects the logic channel, range 0..15 ● LOGic: Selects the logic pod, range 1..2 ● BUS: Selects the bus, range 1..4 BUS:HISTory:TTABle[:ENABle]................
R&S®RTB2000 Remote Control Commands Waveform Analysis LOGic
:HISTory:TTABle[:ENABle] CHANnel:HISTory:TTABle[:ENABle] Displays or hides the segment table on the screen. Parameters: ON | OFF *RST: OFF CHANnel:HISTory:TMODe? Returns the the type of the timestamp that is shown the segment table. Parameters: RELative | ABSolute RELative Time difference of the current segment to the newest segment (index = 0).
R&S®RTB2000 Remote Control Commands Waveform Analysis Return values: List of Values The list starts with the oldest segment, and the newest segment is the last one. Example: CHANnel2:HISTory:TSRelative:ALL? --> -4.184565632000E-01,-4.094896352000E-01,-4.005227104000E-01, -3.915557824000E-01, ...,-8.966924800000E-03,-0.
R&S®RTB2000 Remote Control Commands Waveform Analysis SPECtrum:HISTory:TSDate? CHANnel:HISTory:TSDate? Returns the date of the selected acquisition (CHANnel:HISTory:CURRent). Return values: , , Comma-separated list Example: CHAN:HIST:CURR -5 CHAN:HIST:TSD? --> 2014,7,1 Usage: Query only BUS:HISTory:TSDate:ALL? DIGital:HISTory:TSDate:ALL? LOGic:HISTory:TSDate:ALL? SPECtrum:HISTory:TSDate:ALL? CHANnel:HISTory:TSDate:ALL? Returns the dates of all history segments.
R&S®RTB2000 Remote Control Commands Waveform Analysis BUS:HISTory:EXPort:NAME DIGital:HISTory:EXPort:NAME SPECtrum:HISTory:EXPort:NAME CHANnel:HISTory:EXPort:NAME EXPort:ATABle:NAME Parameters: String parameter Example: EXPort:ATABle:NAME "/USB_FRONT/EXPORT/TIMES" BUS:HISTory:EXPort:SAVE DIGital:HISTory:EXPort:SAVE SPECtrum:HISTory:EXPort:SAVE CHANnel:HISTory:EXPort:SAVE EXPort:ATABle:SAVE Saves the acquisiti
R&S®RTB2000 Remote Control Commands Measurements 15.7 Measurements 15.7.1 Quick Measurements In the quick measurement commands, the numeric suffix is irrelevant, omit it. MEASurement:AON.................................................................................................325 MEASurement:AOFF............................................................................................... 325 MEASurement:ARESult?.........................................................................
R&S®RTB2000 Remote Control Commands Measurements 15.7.2 Automatic Measurements 15.7.2.1 Measurement Settings MEASurement[:ENABle]...........................................................................................326 MEASurement:MAIN................................................................................................326 MEASurement:SOURce........................................................................................... 328 MEASurement:DELay:SLOPe...................
R&S®RTB2000 Remote Control Commands Measurements Parameters: FREQuency | PERiod | PEAK | UPEakvalue | LPEakvalue | PPCount | NPCount | RECount | FECount | HIGH | LOW | AMPLitude | MEAN | RMS | RTIMe | FTIMe | PDCYcle | NDCYcle | PPWidth | NPWidth | CYCMean | CYCRms | STDDev | CYCStddev | DELay | PHASe | BWIDth | POVershoot | NOVershoot See also: Chapter 7.2.2, "Measurement Types", on page 108. FREQuency Frequency of the signal.
R&S®RTB2000 Remote Control Commands Measurements Width of positive or negative pulses. CYCMean Mean voltage value of the left-most signal period of the waveform of the selected channel. CYCRms RMS (root mean square) voltage value of the left-most signal period of the waveform of the selected channel. STDDev Standard deviation of the waveform. CYCStddev Standard deviation of one cycle, usually of the first, left-most signal period. DELay Time difference between two edges of the same or different waveforms.
R&S®RTB2000 Remote Control Commands Measurements Parameters: CH1..4 | MA1 | RE1..4 | D0..15 Waveform to be measured, required for all measurement types. For delay and phase measurements, it is the "Measure Source". CH1 | CH2 | CH3 | CH4 Active signal channels 1 to 4 MA1 Active math channel RE1 | RE2 | RE3 | RE4 Active reference channels 1 to 4 D0..D15 Active digital channels D0...D15. Only available, if MSO option R&S RTB-B1 is installed. None | CH1..4 | MA1 | RE1..
R&S®RTB2000 Remote Control Commands Measurements MEASurement:STATistics:RESet Deletes the statistical results for all measurements, and starts a new statistical evaluation if the acquisition is running. The waveform count is set to 0 and all measurement values are set to NAN. 15.7.2.2 Suffix: . 1..4 The suffix is irrelevant. Usage: Event Measurements Results You can query the statistical results using the MEAS:STAT commands.
R&S®RTB2000 Remote Control Commands Measurements Return values: Usage: Measurement result. If no measurement was executed, no value (NAN) is returned. Query only MEASurement:RESult:AVG? Returns the average value of the current measurement series. Suffix: . 1..4 Selects the measurement place.
R&S®RTB2000 Remote Control Commands Measurements Query parameters: Maximum measurement result Usage: Query only MEASurement:RESult:WFMCount? Returns the current number of measured waveforms. The query for MIN and MAX values is not possible. Suffix: . 1..4 Selects the measurement place. Query parameters: Number of measured waveforms Usage: Query only MEASurement:STATistics:WEIGht? Returns the size of the statistics buffer.
R&S®RTB2000 Remote Control Commands Measurements Note: Valid buffered values can only be read if the acquisition is stopped. As long as the acquisition is running, the buffer contents is changing and the buffered values are not valid for reading. Suffix: . 1..4 Selects the measurement place. * Buffer place. The buffer size is 1000 results.
R&S®RTB2000 Remote Control Commands Measurements Example: The file contains general information, statistical results, long term statistics, and the individual values that are used to calculate the statistics. The number of values is "Average No." "Vendor","Rohde&Schwarz", "Device/Mat.-No.","RTB2004 / 1333.1005K04", "Serial No.","3900001", "Firmware Version","02.001", "Date","2017-11-18 / 16:40:27", "Meas.
R&S®RTB2000 Remote Control Commands Measurements MEASurement:GATE Activates or deactivates the measurement gate. To set the gate, use: ● MEASurement:GATE:MODE and ● MEASurement:GATE:ABSolute:STARt and MEASurement:GATE: ABSolute:STOP ● or MEASurement:GATE:RELative:STARt and MEASurement:GATE: RELative:STOP Suffix: Parameters: . 1..4 Selects the measurement place.
R&S®RTB2000 Remote Control Commands Measurements Suffix: Parameters: 15.7.2.4 . 1..4 The suffix is irrelevant. One gate is used for all measurement places. *RST: 75 Default unit: % Reference Levels REFLevel:RELative:MODE............................................................................................. 336 REFLevel:RELative:LOWer.............................................................................................336 REFLevel:RELative:UPPer..............................
R&S®RTB2000 Remote Control Commands Measurements Parameters: *RST: 10 Default unit: % *RST: 90 Default unit: % REFLevel:RELative:MIDDle Set the middle reference level that is used for phase and delay measurements, if REFLevel:RELative:MODE is set to USER. The level is defined as percentages of the high signal level. The setting is valid for all measurements. Parameters: *RST: 50 Default unit: % 15.7.3 Cursor Measurements 15.7.3.
R&S®RTB2000 Remote Control Commands Measurements CURSor:STATe Activates or deactivates the cursor measurement. Suffix: . 1, the suffix is irrelevant. Parameters: ON | OFF *RST: OFF CURSor:SOURce Defines the source of the cursor measurement. Suffix: Parameters: . 1, the suffix is irrelevant. CH1 | CH2 | CH3 | CH4 | MA1 | RE1 | RE2 | RE3 | RE4 | XY1 | XY2 | D70 | D158 | D0..
R&S®RTB2000 Remote Control Commands Measurements Parameters: HORizontal | VERTical | HVERtical To set the V-marker measurement, use CURSor: TRACking[:STATe]. *RST: VERTical Value Description Queries for results HORizontal Sets two horizontal cursor lines and measures the voltages at the two cursor positions and the delta of the two values.
R&S®RTB2000 Remote Control Commands Measurements CURSor:Y1Position CURSor:Y2Position The commands specify or return the positions of horizontal cursor lines on the y-axis (voltage, current, level for FFT). Suffix: Parameters: . 1, the suffix is irrelevant. Range: Depends on the current instrument settings. Increment: 0.
R&S®RTB2000 Remote Control Commands Measurements CURSor:TRACking:SCALe[:STATe] Enables the adjustment of cursor lines if the vertical or horizontal scales are changed. Suffix: . 1, the suffix is irrelevant. Parameters: ON | OFF ON Cursor lines keep their relative position to the waveform. OFF Cursor lines remain on their position on the display if the scaling is changed.
R&S®RTB2000 Remote Control Commands Measurements Suffix: . 1, the suffix is irrelevant. Return values: Measurement result Usage: Query only CURSor:XDELta[:VALue]? Returns the time difference between two vertical cursor lines (Δt). Suffix: Return values: Usage: . 1, the suffix is irrelevant. Range: -100E24 to 100E24 Increment: 0.1 Default unit: s Query only CURSor:XDELta:INVerse? Returns the inverse time difference between the two cursors (1/Δt, frequency).
R&S®RTB2000 Remote Control Commands Applications Suffix: . 1, the suffix is irrelevant. Return values: Inverse value Usage: Query only 15.8 Applications 15.8.1 General DEVice:MODE Sets the operation mode or application. Parameters: YT | ZOOM | XY | QMEas | UPDate | AUToset | MASKtest | FFT 15.8.2 Mask Testing 15.8.2.1 Mask Setup MASK:STATe.................................................................................................................
R&S®RTB2000 Remote Control Commands Applications MASK:SOURce Defines the channel to be compared with the mask, and also the channel from which the mask is created. Parameters: CH1 | CH2 | CH3 | CH4 CH3 and CH4 are only available on 4-channel models. *RST: CH1 MASK:CHCopy Creates a mask from the envelope waveform of the source set with MASK:SOURce. Usage: Event MASK:YPOSition Moves the mask vertically within the display.
R&S®RTB2000 Remote Control Commands Applications Parameters: The value is added to the y-values of the upper mask limit and subtracted from the y-values of the lower mask limit. Default unit: div MASK:SAVE Saves the current mask in the specified file. Setting parameters: String parameter Path and file name Usage: Setting only MASK:LOAD Loads a stored mask from the specified file. Setting parameters: String parameter Path and file name Usage: 15.
R&S®RTB2000 Remote Control Commands Applications ● PULSe: Creates a pulse on the [Aux Out] connector. This selection sets the configuration of the [Aux Out] connector to "Mask Violation". ● SCRSave: Saves a screenshot on mask violation. To set path and filename of the screenshot, use MASK:ACTion:SCRSave:DESTination. ● WFMSave: Saves the waveform data on mask violation. To set path and filename of the data file, use MASK:ACTion:WFMSave:DESTination.
R&S®RTB2000 Remote Control Commands Applications MASK:ACTion:YOUT:ENABle Creates a pulse on the [Aux Out] connector if the mask is violated. This selection sets the configuration of the [Aux Out] connector to "Mask Violation". Same as MASK:ACTion:PULSe:EVENt:MODE on page 345. Parameters: ON | OFF *RST: 15.8.2.3 OFF Mask Test MASK:TEST..................................................................................................................347 MASK:RESet:COUNter....................
R&S®RTB2000 Remote Control Commands Applications MASK:CAPTure[:MODE] Only available with history. The command selects whether all acquisitions are stored in segments, or only failed acquisition. You can use the hostiry to analyze the segments. Parameters: ALL | FAILED *RST: 15.8.2.4 ALL Mask Data Use the following commands that are described in Chapter 15.9.1.
R&S®RTB2000 Remote Control Commands Applications SPECtrum:SOURce Selects the source for the spectrum analysis diagrams. Parameters: CH1 | CH2 | CH3 | CH4 SPECtrum:FREQuency:WINDow:TYPE Window functions are multiplied with the input values and thus can improve the spectrum analysis display. Parameters: RECTangular | HAMMing | HANNing | BLACkmanharris | FLATtop RECTangular The rectangular window has high frequency accuracy with thin spectral lines, but with increased noise.
R&S®RTB2000 Remote Control Commands Applications Parameters: LINear | DBM | DBV LINear Linear scaling, displays the RMS value of the voltage. DBM Logarithmic scaling, related to 1 mW. DBV Logarithmic scaling, related to 1 Veff. SPECtrum:FREQuency:POSition Defines the vertical position of the spectrum. Parameters: Default unit: div SPECtrum:FREQuency:SCALe Sets the vertical scale of the spectrum analysis waveform.
R&S®RTB2000 Remote Control Commands Applications Parameters: SPECtrum:FREQuency:FULLspan Performs the spectrum analysis calculation for the full frequency span. Usage: Event SPECtrum:FREQuency:SPAN The span is specified in Hertz and defines the width of the displayed frequency range, which is (Center - Span/2) to (Center + Span/2).
R&S®RTB2000 Remote Control Commands Applications Parameters: 15.8.3.3 Range: The value is changed in 2^n steps from 2^10 to 2^15 (1024, 2048,4096,8192,16384, 32768). Waveform Settings SPECtrum:WAVeform:AVERage[:ENABle]........................................................................ 352 SPECtrum:WAVeform:MAXimum[:ENABle]....................................................................... 352 SPECtrum:WAVeform:MINimum[:ENABle]....................................................
R&S®RTB2000 Remote Control Commands Applications 15.8.3.4 Waveform Data SPECtrum:WAVeform:AVERage:DATA?........................................................................... 353 SPECtrum:WAVeform:MAXimum:DATA?.......................................................................... 353 SPECtrum:WAVeform:MINimum:DATA?........................................................................... 353 SPECtrum:WAVeform:SPECtrum:DATA?.........................................................................
R&S®RTB2000 Remote Control Commands Applications SPECtrum:WAVeform:MINimum:DATA:HEADer? SPECtrum:WAVeform:SPECtrum:DATA:HEADer? Returns information on the indicated waveform. Return values: StringData Usage: Query only SPECtrum:WAVeform:AVERage:DATA:POINts? SPECtrum:WAVeform:MAXimum:DATA:POINts? SPECtrum:WAVeform:MINimum:DATA:POINts? SPECtrum:WAVeform:SPECtrum:DATA:POINts? Returns the number of data samples that are returned with SPECtrum:WAVeform:xxx:DATA for the indicated waveform.
R&S®RTB2000 Remote Control Commands Applications Return values: Usage: Query only SPECtrum:WAVeform:AVERage:DATA:YORigin? SPECtrum:WAVeform:MAXimum:DATA:YORigin? SPECtrum:WAVeform:MINimum:DATA:YORigin? SPECtrum:WAVeform:SPECtrum:DATA:YORigin? Returns the vertical bit resolution of the indicated waveform.
R&S®RTB2000 Remote Control Commands Applications Parameters: Range: 1 to 20 Increment: 1 *RST: 1 DISPlay:CBAR:SPECtrogram[:POSition] Defines the position of the divide bar on top of the spectrogram. Parameters: Vertical position in pixel, measured from the top edge. The vertical display size is 800 px. Default unit: px 15.8.4.2 Peak List Settings SPECtrum:MARKer:RTABle:ENABle.......................................................................
R&S®RTB2000 Remote Control Commands Applications SPECtrum:MARKer:SETup:MMODe Sets the mode for peak detection. Parameters: LONLy | ADVanced LONLy Level only: detects a peak when a certain minimum level is exceeded. You can define the minimum level with SPECtrum: MARKer:SETup:MLEVel. ADVanced Enables a more precise advanced peak definition. SPECtrum:MARKer:SETup:MLEVel Sets the minimum level for marker peak detection.
R&S®RTB2000 Remote Control Commands Applications SPECtrum:MARKer:REFerence:SETup:CSCReen Centers the display to the center frequency. Usage: 15.8.4.3 Event Reference Marker SPECtrum:MARKer:REFerence:SETup:MODE................................................................. 358 SPECtrum:MARKer:REFerence:SETup:INDex.................................................................. 358 SPECtrum:MARKer:REFerence:SETup:FREQuency.........................................................
R&S®RTB2000 Remote Control Commands Applications Parameters: SPECtrum:MARKer:RMARker? Returns the frequency and the level values of the present reference marker. Return values: Usage: Query only SPECtrum:MARKer:RMARker:FREQuency? Returns the frequency of the reference marker. Return values: Usage: Query only SPECtrum:MARKer:RMARker:LEVel? Returns the level of the reference marker.
R&S®RTB2000 Remote Control Commands Applications 15.8.4.4 Peak List Results SPECtrum:MARKer:RCOunt?......................................................................................... 360 SPECtrum:MARKer:RESult?..................................................................................... 360 SPECtrum:MARKer:RESult:ALL?...............................................................................360 SPECtrum:MARKer:RESult:ALL:DELTa?...................................................
R&S®RTB2000 Remote Control Commands Applications Suffix: . * Return values: List of numeric values with shape ,,.... Usage: Query only SPECtrum:MARKer:RESult:DELTa? Returns the difference in the values between the n-th marker and the reference marker. Suffix: . * Usage: Query only SPECtrum:MARKer:RESult:FREQuency? Returns the frequency of the n-th marker. Suffix: .
R&S®RTB2000 Remote Control Commands Applications SPECtrum:MARKer:RESult:LEVel:DELTa? Returns the delta level, the difference between the level of the specified marker and the level of the reference marker. Suffix: . * Return values: Usage: 15.8.4.5 Query only Display Settings for Spectrum and Spectrogram SPECtrum:FREQuency:BANDwidth[:RESolution]:AUTO.................................................... 362 SPECtrum:DIAGram:COLor:MAGNitude:MODE.............................
R&S®RTB2000 Remote Control Commands Applications SPECtrum:DIAGram:COLor:MINimum[:LEVel] Sets the level used as a minimum of the color scale selected with SPECtrum: DIAGram:COLor:SCHeme:SPECtrogram/SPECtrum:DIAGram:COLor:SCHeme: FDOMain. All level values lower than the minimum are displayed with the minimum color. Parameters: SPECtrum:DIAGram:COLor:SCHeme:FDOMain Sets the color scale for the display of the waveform in the frequency domain diagram.
R&S®RTB2000 Remote Control Commands Applications Parameters: YT | XY YT Default time diagram with a time axis in x-direction and the signal amplitudes displayed in y-direction. XY XY-diagram, combines the voltage levels of two waveforms in one diagram. *RST: YT DISPlay:XY:XSOurce Defines the source to be displayed in x-direction in an XY-diagram, replacing the usual time base.
R&S®RTB2000 Remote Control Commands Applications DVM:ENABle.......................................................................................................... 365 DVM:SOURce.........................................................................................................365 DVM:TYPE............................................................................................................. 365 DVM:RESult[:ACTual]?...................................................................
R&S®RTB2000 Remote Control Commands Applications Suffix: . 1..4 Sets the number of the meter measurement. Example: DVM2:SOUR CH2 DVM2:TYPE DCRMs DVM2:RES? <-- 7.089E-01 An RMS measurement is performed on measurement place 2, on channel 2. The result is 708.9 mV. Usage: Query only DVM:RESult[:ACTual]:STATus? Returns the result value and the status of the result.
R&S®RTB2000 Remote Control Commands Documenting Results TCOunter:ENABle Enables or disables the trigger counter measurements. Parameters: ON | OFF TCOunter:SOURce Sets the measurement source for the counter. Parameters: CH1 | CH2 | CH3 | CH4 | TRIGger TRIGger: Trigger source *RST: TRIG TCOunter:RESult[:ACTual]:FREQuency? Returns the frequency of the trigger source.
R&S®RTB2000 Remote Control Commands Documenting Results 15.9.1 Transfer of Waveform Data This chapter describes data transfer commands that have effect on other commands in different applications of the instrument, and transfer commands that work in the same way. 15.9.1.1 Format Settings FORMat[:DATA]............................................................................................................. 368 FORMat:BORDer................................................................................
R&S®RTB2000 Remote Control Commands Documenting Results Parameters: ASCii | REAL | UINTeger ASCii List of values, for example, 1.23,1.22,1.24,.. is 0 which means that the instrument selects the number of digits to be returned. The query returns ASC,0. REAL Binary format. is 32. The query returns REAL,32. The data is stored as binary data (Definite Length Block Data according to IEEE 488.2). Each waveform value is formatted in 32 Bit IEEE 754 Floating-Point-Format.
R&S®RTB2000 Remote Control Commands Documenting Results Example: Set the unsigned integer format, 16 bit data length: FORM UINT,16 FORMat:BORDer Defines the byte order for binary data export if FORMat[:DATA] is set to REAL or UINT,16|32. Parameters: MSBFirst | LSBFirst MSBFirst Big endian, most significant byte first LSBFirst Little endian, least significant byte first *RST: Example: 15.9.1.
R&S®RTB2000 Remote Control Commands Documenting Results Example: FORM ASC CHAN1:DATA? -0.125000,-0.123016,-0.123016,-0.123016, -0.123016,-0.123016,... Example: See Chapter 15.2.1.3, "Reading Waveform Data in Real Format", on page 259 and Chapter 15.2.1.4, "Reading Waveform Data in Unsigned Integer Format", on page 259 Usage: Query only CHANnel:DATA:HEADer? Returns information on the channel waveform. For envelope waveforms, use the CHANnel:DATA:ENVelope:HEADer? command.
R&S®RTB2000 Remote Control Commands Documenting Results Suffix: . 1..4 The command affects all channels, and the suffix is irrelevant. Setting parameters: DEFault | MAXimum | DMAXimum Sets the range for data queries. DEFault Waveform points that are visible on the screen. At maximum waveform rate, the instrument stores more samples than visible on the screen, and DEF returns less values than acquired. MAXimum All waveform samples that are stored in the memory.
R&S®RTB2000 Remote Control Commands Documenting Results Suffix: . 1..4 Selects the input channel. The number of channels depends on the instrument. Parameters: Usage: List of values according to the format settings - the voltages of the envelope points. The list contains two values for each sample interval. Query only CHANnel:DATA:ENVelope:HEADer? Returns information on the envelope waveform. Use this command only for envelope waveforms.
R&S®RTB2000 Remote Control Commands Documenting Results CALCulate:QMATh:DATA? Returns the data of the math waveform points for transmission from the instrument to the controlling computer. The waveforms data can be used in MATHLAB, for example. To set the export format, use FORMat[:DATA] on page 368. Return values: Usage: List of values according to the format settings - voltages, or magnitudes of a spectrum. Query only CALCulate:QMATh:DATA:HEADer? Returns information on the math waveform.
R&S®RTB2000 Remote Control Commands Documenting Results Return values: List of values according to the format settings. Usage: Query only REFCurve:DATA:HEADer? Returns information on the reference waveform. Table 15-4: Header data Position Meaning Example 1 XStart in s -9.477E-008 = - 94,77 ns 2 XStop in s 9.477E-008 = 94,77 ns 3 Record length of the waveform in Samples 200000 4 Number of values per sample interval, usually 1. 1 Suffix: Parameters:
R&S®RTB2000 Remote Control Commands Documenting Results MASK:DATA:HEADer? Returns information on the mask data that is delivered with MASK:DATA?. Table 15-5: Header data Position Meaning Example 1 XStart in s -9.477E-008 = - 94,77 ns 2 XStop in s 9.477E-008 = 94,77 ns 3 Number of samples 200000 4 Number of values per sample interval. For masks the value is 2. 2 Return values: Comma-separated value list Example: -9.477E-008,9.477E-008,200000,2 Usage: 15.9.1.
R&S®RTB2000 Remote Control Commands Documenting Results CHANnel:DATA:YINCrement?...................................................................................378 CHANnel:DATA:ENVelope:YINCrement?................................................................... 378 CALCulate:QMATh:DATA:YINCrement?........................................................................... 378 MASK:DATA:YINCrement?.............................................................................................
R&S®RTB2000 Remote Control Commands Documenting Results Suffix: . 1..4 Return values: Time in s Example: See Chapter 15.2.1.4, "Reading Waveform Data in Unsigned Integer Format", on page 259 Usage: Query only CHANnel:DATA:YORigin? CHANnel:DATA:ENVelope:YORigin? CALCulate:QMATh:DATA:YORigin? MASK:DATA:YORigin? LOGic:DATA:YORigin? DIGital:DATA:YORigin? REFCurve:DATA:Yorigin? Return the voltage value for binary value 0 of the indicated waveform.
R&S®RTB2000 Remote Control Commands Documenting Results Example: See Chapter 15.2.1.4, "Reading Waveform Data in Unsigned Integer Format", on page 259 Usage: Query only CHANnel:DATA:YRESolution? CHANnel:DATA:ENVelope:YRESolution? CALCulate:QMATh:DATA:YRESolution? MASK:DATA:YRESolution? LOGic:DATA:YRESolution? DIGital:DATA:YRESolution? REFCurve:DATA:YRESolution? Return the vertical bit resolution of the indicated waveform.
R&S®RTB2000 Remote Control Commands Documenting Results Parameters: CH1..4 | D70 | D158 | MA1 | RE1..4 CH1..4 Analog channels CH1 | CH2 | CH3 | CH4 D70 Pod 1, digital channels D0 to D7 are exported together D158 Pod 2, digital channels D8 to D15 are exported together. MA1 Mathematic waveform RE1..4 Reference waveforms RE1 | RE2 | RE3 | RE4 EXPort:WAVeform:NAME Defines the path and filename for a waveform data file that will be saved with EXPort: WAVeform:SAVE.
R&S®RTB2000 Remote Control Commands Documenting Results HCOPy:SIZE:X?............................................................................................................ 382 HCOPy:SIZE:Y?............................................................................................................ 382 HCOPy:COLor:SCHeme.................................................................................................
R&S®RTB2000 Remote Control Commands Documenting Results HCOPy:SIZE:X? Returns the number of horizontal pixels of the oscilloscope screen. Return values: Numeric value Usage: Query only HCOPy:SIZE:Y? Returns the number of vertical pixels of the oscilloscope screen. Return values: Numeric value Usage: Query only HCOPy:COLor:SCHeme Defines the color mode for screenshots. Parameters: COLor | GRAYscale | INVerted INVerted inverts the colors of the output, i.
R&S®RTB2000 Remote Control Commands Documenting Results MMEMory:DRIVes?........................................................................................................383 MMEMory:MSIS.............................................................................................................383 MMEMory:MDIRectory................................................................................................... 383 MMEMory:CDIRectory..................................................................
R&S®RTB2000 Remote Control Commands Documenting Results Example: Create directory JANUARY in the DATA directory, with relative path: MMEM:CDIR "/USB_FRONT/DATA/" MMEM:MDIR "JANUARY" Usage: Setting only MMEMory:CDIRectory Specifies the current directory for file access. Before using the command, create the directory with MMEMory:MDIRectory. Setting parameters: String parameter to specify the directory, including the storage device.
R&S®RTB2000 Remote Control Commands Documenting Results Return values: String parameter List of subdirectory strings separated by commas. If the specified directory does not have any subdirectory, the current and the parent directories are returned (".,,0","..,,0") Example: Query for directories with absolute path: MMEM:DCAT? "/USB_FRONT/*" received ".,,0","..
R&S®RTB2000 Remote Control Commands Documenting Results Query parameters: String parameter Specifies the directory. A filter can be used to list, for example, only files of a given file type. ALL | WTIMe ALL: Extended result including file, date, time and attributes WTIMe: Result including file, date, time Return values: Total amount of storage currently used in the directory, in bytes. Total amount of storage available in the directory, in bytes.
R&S®RTB2000 Remote Control Commands Documenting Results MMEMory:COPY , Copies data to another directory on the same or different storage device. The file name can be changed, too. Setting parameters: String parameter Name and path of the file to be copied String parameter Name and path of the new file. If the file already exists, it is overwritten without notice. Example: MMEM:COPY "/INT/SETTINGS/SET001.SET", "/USB_FRONT/SETTINGS/TESTSET1.
R&S®RTB2000 Remote Control Commands Documenting Results MMEMory:DATA , Writes data to the specified file in the current directory MMEMory:CDIRectory, or reads the data. Parameters: 488.2 block data The block begins with character '#'. The next digit is the length of the length information, followed by this given number of digits providing the number of bytes in the binary data attached.
R&S®RTB2000 Remote Control Commands General Instrument Setup Example: MMEM:CDIR "/USB_FRONT/DATA"' MMEM:LOAD:STAT 1,"MORNING" Example: see Chapter 15.2.1.2, "Saving, Copying, and Loading Setup Data", on page 258 Usage: Setting only 15.10 General Instrument Setup ● ● ● ● ● ● Display Settings.................................................................................................... 389 System Settings............................................................................................
R&S®RTB2000 Remote Control Commands General Instrument Setup Parameters: ENGLish | GERMan | FRENch | SPANish | RUSSian | SCHinese | TCHinese | JAPanese | KORean | ITALian | PORTuguese | CZECh | POLish Supported languages are listed in the "Specifications" data sheet. *RST: ENGL DISPlay:CLEar[:SCReen] Deletes all waveforms and measurement results. Usage: Event DISPlay:PERSistence:TYPE Defines how long every new data point remains on the screen.
R&S®RTB2000 Remote Control Commands General Instrument Setup Usage: Event DISPlay:PERSistence[:STATe] Defines whether the waveform persists on the screen or whether the screen is refreshed continuously. Parameters: ON | OFF ON The waveform persists for the time defined using DISPlay: PERSistence:TIME. OFF The waveform does not persist on the screen. Only the currently measured values are displayed.
R&S®RTB2000 Remote Control Commands General Instrument Setup DISPlay:GRID:STYLe
