RIGOL User’s Guide MSO2000A/DS2000A Series Digital Oscilloscope Aug. 2015 RIGOL TECHNOLOGIES, INC.
RIGOL Guaranty and Declaration Copyright © 2013 RIGOL Technologies, Inc. All Rights Reserved. Trademark Information RIGOL is a registered trademark of RIGOL Technologies, Inc. Publication Number UGA18108-1110 Software Version 00.03.03.SP2 Software upgrade might change or add product features. Please acquire the latest version of the manual from RIGOL website or contact RIGOL to upgrade the software. Notices RIGOL products are covered by P.R.C. and foreign patents, issued and pending.
RIGOL Safety Requirement General Safety Summary Please review the following safety precautions carefully before putting the instrument into operation so as to avoid any personal injury or damage to the instrument and any product connected to it. To prevent potential hazards, please follow the instructions specified in this manual to use the instrument properly. Use Proper Power Cord. Only the exclusive power cord designed for the instrument and authorized for use within the local country could be used.
RIGOL Do Not Operate Without Covers. Do not operate the instrument with covers or panels removed. Do Not Insert Objects Into the Air Outlet. Do not insert objects into the air outlet, as doing so may cause damage to the instrument. Use Proper Fuse. Please use the specified fuses. Avoid Circuit or Wire Exposure. Do not touch exposed junctions and components when the unit is powered on. Do Not Operate With Suspected Failures.
RIGOL Prevent Electrostatic Impact. Operate the instrument in an electrostatic discharge protective environment to avoid damage induced by static discharges. Always ground both the internal and external conductors of cables to release static before making connections. Use the Battery Properly. Do not expose the battery (if available) to high temperature or fire. Keep it out of the reach of children. Improper change of a battery (lithium battery) may cause an explosion. Use the RIGOL specified battery only.
RIGOL Safety Terms and Symbols Safety Notices in this Manual: WARNING Indicates a potentially hazardous situation or practice which, if not avoided, will result in serious injury or death. CAUTION Indicates a potentially hazardous situation or practice which, if not avoided, could result in damage to the product or loss of important data. Safety Terms on the Product: DANGER WARNING CAUTION It calls attention to an operation, if not correctly performed, could result in injury or hazard immediately.
RIGOL Allgemeine Sicherheits Informationen Überprüfen Sie diefolgenden Sicherheitshinweise sorgfältigumPersonenschädenoderSchäden am Gerätundan damit verbundenen weiteren Gerätenzu vermeiden. Zur Vermeidung vonGefahren, nutzen Sie bitte das Gerät nur so, wiein diesem Handbuchangegeben. Um Feuer oder Verletzungen zu vermeiden, verwenden Sie ein ordnungsgemäßes Netzkabel. Verwenden Sie für dieses Gerät nur das für ihr Land zugelassene und genehmigte Netzkabel. Erden des Gerätes.
RIGOL Betreiben Sie das Gerät nicht geöffnet. Der Betrieb mit offenen oder entfernten Gehäuseteilen ist nicht zulässig. Nichts in entsprechende Öffnungen stecken (Lüfter z.B.) Passende Sicherung verwenden. Setzen Sie nur die spezifikationsgemäßen Sicherungen ein. Vermeiden Sie ungeschützte Verbindungen. Berühren Sie keine unisolierten Verbindungen oder Baugruppen, während das Gerät in Betrieb ist. Betreiben Sie das Gerät nicht im Fehlerfall.
RIGOL Funktionsstörungen durch ESD zu vermeiden. Erden Sie vor dem Anschluß immer Innen- und Außenleiter der Verbindungsleitung, um statische Aufladung zu entladen. Die richtige Verwendung desAkku. Wenneine Batterieverwendet wird, vermeiden Sie hohe Temperaturen bzw. Feuer ausgesetzt werden. Bewahren Sie es außerhalbder Reichweitevon Kindern auf. UnsachgemäßeÄnderung derBatterie (Anmerkung: Lithium-Batterie) kann zu einer Explosion führen. VerwendenSie nur von RIGOL angegebenenAkkus. Sicherer Transport.
RIGOL Sicherheits Begriffe und Symbole Begriffe in diesem Guide: WARNING Die Kennzeichnung WARNING beschreibt Gefahrenquellen die leibliche Schäden oder den Tod von Personen zur Folge haben können. CAUTION Die Kennzeichnung Caution (Vorsicht) beschreibt Gefahrenquellen die Schäden am Gerät hervorrufen können. Begriffe auf dem Produkt: DANGER WARNING CAUTION weist auf eine Verletzung oder Gefährdung hin, die sofort geschehen kann.
RIGOL Measurement Category Measurement Category MSO2000A/DS2000A series digital oscilloscopes can make measurements in Measurement Category I. WARNING This oscilloscope can only be used for measurements within its specified measurement categories. Measurement Category Definitions Measurement category I is for measurements performed on circuits not directly connected to MAINS. Examples are measurements on circuits not derived from MAINS, and specially protected (internal) MAINS derived circuits.
RIGOL Ventilation Requirement This oscilloscope uses fan to force cooling. Please make sure that the air intake and exhaust areas are free from obstructions and have free air. When using the oscilloscope in a bench-top or rack setting, provide at least 10 cm clearance beside, above and behind the instrument for adequate ventilation. WARNING Inadequate ventilation may cause temperature increase which would damage the instrument.
RIGOL Working Environment Temperature Operating: 0℃ to +50℃ Non-operating: -40℃ to +70℃ Humidity 0℃ to +30℃: ≤95% relative humidity +30℃ to +40℃: ≤75% relative humidity +40℃ to +50℃: ≤45% relative humidity WARNING To avoid short circuit inside the instrument or electric shock, please do not operate in humid environment. Altitude Operating: below 3 km Non-operating: below 15 km Installation (Overvoltage) Category This product is powered by mains conforming to installation (overvoltage) category II.
RIGOL Pollution Degree Degree 2 Pollution Degree Definitions Pollution degree 1: No pollution or only dry, non-conductive pollution occurs. The pollution has no influence. For example: a clean room or air-conditioned office environment. Pollution degree 2: Normally only dry, non-conductive pollution occurs. Occasionally a temporary conductivity caused by condensation may occur. For example: general indoor environment.
RIGOL General Care and Cleaning General Care Do not store or leave the instrument where it may be exposed to direct sunlight for long periods of time. Cleaning Clean the instrument regularly according to its operating conditions. To clean the exterior surface, perform the following steps: 1. Disconnect the instrument from all power sources. 2. Clean the loose dust on the outside of the instrument with a lint-free cloth (with a mild detergent or water).
RIGOL Environmental Considerations The following symbol indicates that this product complies with the WEEE Directive 2002/96/EC. Product End-of-Life Handling The equipment may contain substances that could be harmful to the environment or human health. In order to avoid the release of such substances into the environment and harm to human health, we encourage you to recycle this product in an appropriate system that will ensure that most of the materials are reused or recycled appropriately.
RIGOL MSO2000A/DS2000A Series Overview MSO2000A is a mixed signal digital oscilloscope aimed at embedded system design and test. It allows users to measure both analog and digital signals. MSO2000A/DS2000A series is a multifunctional and high-performance digital oscilloscope designed on the basis of the UltraVision technique developed by RIGOL. It fulfills the design, debugging and test requirements of the mainstream application market.
RIGOL Support USB storage device storage and PictBridge printer Conform to LXI-C class instrument standards; enable quick, economic and efficient creation and reconfiguration of test system Support remote command control User-friendly design 8.
RIGOL Document Overview Main Topics of this Manual: Chapter 1 Quick Start Introduce the preparations before using the oscilloscope and provide a basic introduction of the instrument. Chapter 2 To Set the Vertical System Introduce the vertical system functions of the oscilloscope. Chapter 3 To Set the Horizontal Introduce the horizontal system functions of System the oscilloscope. Chapter 4 To Set the Sample System Introduce the sample system functions of the oscilloscope.
RIGOL Chapter 16 Remote Control Chapter 17 Troubleshooting Chapter 18 Specifications Chapter 19 Appendix Introduce how to control the oscilloscope remotely. Introduce how to deal with common failures of the oscilloscope. Provide the specifications and general specifications of the oscilloscope. Provide common information such as options and accessories. Format Conventions in this Manual: 1. Key The key at the front panel is denoted by the format of “Key Name (Bold) + Text Box”.
RIGOL Content Conventions in this Manual: MSO2000A/DS2000A series includes the following models. Unless otherwise noted, this manual takes MSO2302A-S for an example to illustrate the functions and operation methods of MSO2000A/DS2000A series.
Contents RIGOL Contents Guaranty and Declaration .........................................................................I Safety Requirement ................................................................................ II General Safety Summary ........................................................................... II Safety Terms and Symbols ........................................................................ V Allgemeine Sicherheits Informationen ............................................
RIGOL Contents AUTO ........................................................................................... 1-16 Multifunction Knob ......................................................................... 1-17 Navigation Knob ............................................................................ 1-17 Function Keys................................................................................ 1-18 Signal Source ................................................................................
Contents RIGOL High Resolution .............................................................................. 4-4 Sample Mode ........................................................................................ 4-5 Sample Rate ......................................................................................... 4-6 LA Sample Rate ..................................................................................... 4-7 Memory Depth ...................................................................
RIGOL Contents Multiplication ................................................................................... 6-3 Division .......................................................................................... 6-3 FFT ................................................................................................ 6-5 Digital Filter .................................................................................... 6-8 Logic Operation ...............................................................
Contents RIGOL SPI Decoding (Option) ..........................................................................8-14 CAN Decoding (Option) .........................................................................8-17 Chapter 9 Reference Waveform ............................................................ 9-1 To Enable REF Function.......................................................................... 9-2 To Set the Color ..................................................................................
RIGOL Contents To Output Square .......................................................................... 13-4 To Output Ramp ............................................................................ 13-5 To Output Pulse ............................................................................. 13-6 To Output DC ................................................................................ 13-6 To Output Noise ............................................................................
RIGOL Contents Screen ........................................................................................ 15-11 Self-calibration............................................................................. 15-12 Print Setting ................................................................................ 15-13 Power Status ............................................................................... 15-15 Aux Output .................................................................................
Chapter 1 Quick Start RIGOL Chapter 1 Quick Start This chapter introduces the precautions when using the oscilloscope for the first time, the front/rear panels of the oscilloscope, the user interface and the using method of the built-in help system.
RIGOL Chapter 1 Quick Start General Inspection 1. Inspect the shipping container for damage. Keep the damaged shipping container or cushioning material until the contents of the shipment have been checked for completeness and the instrument has passed both electrical and mechanical tests. The consigner or carrier shall be liable for the damage to instrument resulting from shipment. RIGOL would not be responsible for free maintenance/rework or replacement of the unit. 2. Inspect the instrument.
RIGOL Chapter 1 Quick Start Appearance and Dimensions 179.6 361.
RIGOL Chapter 1 Quick Start To Prepare the Oscilloscope for Use To Adjust the Supporting Legs Adjust the supporting legs properly to use them as stands to tilt the oscilloscope upwards for stable placement of the oscilloscope as well as better operation and observation. Figure 1-3 To Adjust the Supporting Legs To Connect to Power Supply The power requirements of the oscilloscope are 100-240 V, 45-440 Hz.
RIGOL Chapter 1 Quick Start Power-on Inspection When the oscilloscope is energized, pressing the power key at the lower-left corner of the front panel can start the oscilloscope if the power status is currently set to “Default” and the oscilloscope will starts directly if the power status is currently set to “Open”. During the start-up process, the oscilloscope performs a series of self-tests and you can hear the sound of relay switching. After the self-test, the welcome screen is displayed.
RIGOL Chapter 1 Quick Start Connect the logic probe: 1. Connect the single-wire terminal of the logic probe to the [LOGIC D0-D15] digital channel interface at the front panel of MSO2000A in the correct direction. 2. Connect the signal under test to the other terminal of the logic probe. MSO2000A is provided with an RPL2316 logic probe which provides three connecting methods with the signal under test to fulfill the requirements of different application environment.
RIGOL Chapter 1 Quick Start Function Inspection 1. 2. 3. Press Storage Default to restore the oscilloscope to its factory states. Connect the ground alligator clip of the probe to the “Ground Terminal” as shown in the figure below. Use the probe to connect the input terminal of CH1 of the oscilloscope and the “Probe Compensation Signal Output Terminal”. Probe Compensation Signal Output Terminal Ground Terminal Figure 1-7 Probe Compensation Signal Output Terminal/Ground Terminal 4. 5.
RIGOL Chapter 1 Quick Start Probe Compensation When the probes are used for the first time or when the probe compensation signal does not match that shown in Figure 8-1, you should compensate the probes to match the input channels of the oscilloscope. Non-compensated or poorly compensated probes may cause measurement error. The probe compensation procedures are as follows. 1. 2. Perform steps 1, 2, 3 and 4 of “Function Inspection”.
RIGOL Chapter 1 Quick Start Front Panel Overview 1 2 13 14 15 3 16 17 18 4 19 5 6 7 20 8 21 9 10 22 11 12 23 Figure 1-10 Front Panel Overview MSO2000A/DS2000A User’s Guide 1-9
RIGOL Chapter 1 Quick Start Table 1-1 Front Panel Descriptions No. Description No.
RIGOL Chapter 1 Quick Start Rear Panel Overview 1 4 5 2 6 7 3 8 Figure 1-11 Rear Panel Overview 1． Handle Pull up the handle vertically for easy carrying of the instrument. When you do not need the handle, press it down. 2． LAN Connect the instrument to the network via this interface for remote control. This oscilloscope conforms to the LXI-C class instrument standards and you can quickly build test system using it with other instruments.
RIGOL Chapter 1 Quick Start (2) Insert a small straight screwdriver into the slot at the power socket and pry out the fuse seat gently. (3) Take out the fuse and replace it with a fuse of the specified specification. Then, reinstall the fuse seat. 5． AC Power Socket AC power input terminal. The power requirement of this oscilloscope is 100-240 V, 45-440 Hz. Use the power cord provided with the accessories to connect the instrument to AC power.
RIGOL Chapter 1 Quick Start Front Panel Function Overview VERTICAL CH1, CH2: analog input channels. The 2 channels are marked by different colors which are also used to mark both the corresponding waveforms on the screen and the channel input connectors. Press any key to open the corresponding channel menu and press again to turn off the channel. MATH: press this key to open the math operation menu.
RIGOL Chapter 1 Quick Start Decode1, Decode2: decoding function keys. Press the corresponding key to open the decoding function menu. MSO2000A/DS2000A support parallel decoding and protocol decodings. HORIZONTAL MENU: press this key to open the horizontal control menu under which you can turn on or off the delayed sweep function, switch between different time base modes, switch between “Coarse” and “Fine” adjustment of scale as well as modify the horizontal reference setting.
RIGOL Chapter 1 Quick Start TRIGGER MODE: press this key to switch the trigger mode to Auto, Normal or Single and the corresponding state backlight of the current trigger mode would be illuminated. TRIGGER LEVEL: modify the trigger level. Turn clockwise to increase the level and turn counterclockwise to reduce. During the modification, the trigger level line would move up or down and the value in the trigger level message box (e.g. ) at the lower-left corner of the screen would change accordingly.
RIGOL Chapter 1 Quick Start CLEAR Press this key to clear all the waveforms on the screen. If the oscilloscope is in the “RUN” state, new waveforms will still be displayed. RUN/STOP Press this key to set the state of the oscilloscope to “RUN” or “STOP”. In the “RUN” state, the key is illuminated in yellow. In the “STOP” state, the key is illuminated in red. SINGLE Press this key to set the trigger mode to “Single” and this key is illuminated in orange.
RIGOL Chapter 1 Quick Start Multifunction Knob Adjust waveform brightness: In non-menu-operation mode (menu is hidden), turn this knob to adjust the brightness of waveform. The adjustable range is from 0% to 100%. Turn clockwise to increase the brightness and counterclockwise to reduce. Press down this knob to reset the brightness to 50%. You can also press Display WaveIntensity and use the knob to adjust the waveform brightness.
RIGOL Chapter 1 Quick Start Function Keys Measure: press this key to open the measurement setting menu. You can set the measurement setting, all measure, statistic function etc. Press MENU at the left of the screen to open the measurement menus of 29 waveform parameters. Then, press down the corresponding menu softkey to quickly realize one-key measurement and the measurement result will be displayed at the bottom of the screen.
Chapter 1 Quick Start RIGOL Signal Source Press this key to enter the source setting interface. You can enable or disable the output of the [Source1] or [Source2] connector at the rear panel, set the output signal waveform and parameters, turn on or off the state display of the current signal source. Note: This function is only available for MSO2000A-S and DS2000A-S models oscilloscopes. Record Stop Play/Pause Record Record: press this key to start recording the waveform.
RIGOL Chapter 1 Quick Start Print Press this key to execute the print function or save the content displayed in the screen in the USB storage device in a picture file. If a PictBridge printer is currently connected and the printer is in idle state, pressing this key will execute the print function. If no printer but a USB storage device is currently connected, pressing this key will save the screen content to the USB storage device in “.png” format.
RIGOL Chapter 1 Quick Start User Interface MSO2000A/DS2000A provides 8.0 inch, WVGA (800*480) 160,000 color TFT LCD. What is worth mentioning is that the 14-grid ultra-wide screen enables you to view “longer” waveform. 1 2 12 13 3 14 4 5 15 6 7 16 17 18 Figure 1-12 User Interface 8 9 10 11 19 20 1. Auto Measurement Items Provide 16 horizontal (HORIZONTAL) parameters and 13 vertical (VERTICAL) parameters.
RIGOL Chapter 1 Quick Start level in green (correspond to the color of the channel label). Its edge is displayed in white. The label and waveform of the digital channel currently selected are displayed in red. Note: This function is only applicable to MSO2000A and MSO2000A-S models oscilloscopes. 3. Status Available states include RUN, STOP, T’D (triggered), WAIT and AUTO. 4. Horizontal Time Base Represent the time per grid on the horizontal axis on the screen.
RIGOL Chapter 1 Quick Start the knob will automatically set the parameter to zero. 9. Trigger Type Display the currently selected trigger type and trigger condition setting. Different labels are displayed when different trigger types are selected. For example: represents triggering on the rising edge in “Edge” trigger. 10. Trigger Source Display the trigger source currently selected (CH1, CH2, EXT, AC Line or any channel of D0-D15).
RIGOL Chapter 1 Quick Start 13. Analog Channel Label/Waveform Different channels are marked with different colors and the colors of the channel label and waveform are the same. 14. CH2 Vertical Scale Display the on/off status of CH2 and the voltage value per grid of CH2 waveform vertically. In addition, the following labels will be displayed according to the current channel setting: channel coupling (e.g. ), input impedance (e.g. ) and bandwidth limit (e.g. parameter. ).
RIGOL Chapter 1 Quick Start Note: This function is only applicable to MSO2000A-S and DS2000A-S models oscilloscopes. 19. Notification Area Display the system time, sound icon, USB storage device icon and PictBridge printer icon. System Time Displayed in “hh:mm (hour:minute)” format. When printing or storing the waveform, the output file will contain this time message.
RIGOL Chapter 1 Quick Start constant on. Denote that the current menu has several options. Denote that the current menu has a submenu. Press this key to return to the previous menu. Note: The following direction keys might appear in the grid at the lower-left corner of the menu bar: Denote that you can open the next page of the menu. Denote that you can open the previous page of the menu.
RIGOL Chapter 1 Quick Start To Use the Built-in Help System The help system of this oscilloscope provides instructions for all the keys and menu softkeys at the front panel. Press Help to open the help interface and press again to close the interface. The help interface mainly consists of two parts. The left is “Help Options” and you can use “Button” or “Index” mode to select the desired help option. The right is “Help Display Area” which displays the corresponding help information.
Chapter 2 To Set the Vertical System RIGOL Chapter 2 To Set the Vertical System The contents of this chapter: To Enable the Analog Channel Channel Coupling Bandwidth Limit Probe Ratio Input Impedance Waveform Invert Vertical Scale Vertical Expansion Amplitude Unit Channel Label Delay Calibration of the Analog Channel MSO2000A/DS2000A User’s Guide 2-1
RIGOL Chapter 2 To Set the Vertical System To Enable the Analog Channel MSO2000A/DS2000A provides 2 analog input channels (CH1 and CH2) and provides independent vertical control system for each channel. As the setting methods of the vertical systems of the two channels are the same, this chapter takes CH1 as an example to illustrate the setting method of the vertical system.
RIGOL Chapter 2 To Set the Vertical System Channel Coupling The undesired signals can be filtered out by setting the coupling mode. For example, the signal under test is a square waveform with DC offset. When the coupling mode is “DC”: the DC and AC components can pass the channel. When the coupling mode is “AC”: the DC components of the signal under test are blocked. When the coupling mode is “GND”: the DC and AC components of the signal under test are both blocked.
RIGOL Chapter 2 To Set the Vertical System Probe Ratio You can set the probe attenuation ratio manually. The probe ratio values available are as shown in the table below. Table 2-1 Probe Attenuation Coefficient Attenuation Coefficient Menu (waveform display amplitude : actual waveform amplitude) 0.01X 0.01:1 0.02X 0.02:1 0.05X 0.05:1 0.1X 0.1:1 0.2X 0.2:1 0.5X 0.
Chapter 2 To Set the Vertical System RIGOL Input Impedance This oscilloscope provides two input impedance modes (1 MΩ (default) and 50 Ω) to reduce the circuit load caused by the interaction of the oscilloscope and the circuit to be tested. 1MΩ: the input impedance of the oscilloscope is rather high and the current flowing into the oscilloscope from the circuit under test can be ignored. 50Ω: match the oscilloscope with a device with 50 Ω output impedance.
RIGOL Chapter 2 To Set the Vertical System Vertical Scale Vertical scale refers to the voltage value per grid in the vertical direction on the screen and is usually expressed as V/div. Press CH1 Volts/Div to select the desired adjustment mode of the vertical scale, or press VERTICAL SCALE to switch the adjustment mode quickly. Coarse adjustment: set the vertical scale in 1-2-5 step namely 500 μV/div, 1 mV/div, 2 mV/div, 5 mV/div, 10 mV/div…10 V/div (take counterclockwise as an example).
Chapter 2 To Set the Vertical System RIGOL Vertical Expansion When using VERTICAL SCALE to change the vertical scale of the analog channel, you can choose to expand or compress the signal vertically around the center of the screen or the ground point of the signal. Press Utility System VerticalExp to select “Center” or “Ground” and the default is “Ground”. Center: when the vertical scale is modified, the waveform will be expanded or compressed around the center of the screen.
RIGOL Name Input Area Chapter 2 To Set the Vertical System Keyboard Upper/Lower Case Switch Figure 2-2 Label Modification Interface After finishing the input, press OK to finish the modification and the channel label will change to “ ”. To modify or delete the input character, press Name to select the “Name Input Area” and use to select the character to be modified or deleted. Enter the desired character to modify the character or press Delete to delete the character selected.
Chapter 2 To Set the Vertical System RIGOL Delay Calibration of the Analog Channel When using an oscilloscope for actual measurement, the transmission delay of the probe cable may bring relatively greater error (zero offset). Zero offset is defined as the offset of the crossing point of the waveform and trigger level line relative to the trigger position, as shown in the figure below.
Chapter 3 To Set the Horizontal System RIGOL Chapter 3 To Set the Horizontal System The contents of this chapter: Delayed Sweep Time Base Mode Horizontal Scale Horizontal Reference MSO2000A/DS2000A User’s Guide 3-1
RIGOL Chapter 3 To Set the Horizontal System Delayed Sweep Delayed sweep can be used to enlarge a length of waveform horizontally to view the waveform details. Press MENU in the horizontal control area (HORIZONTAL) at the front panel and press Delayed to enable or disable delayed sweep. In delayed sweep mode, the screen is divided into two display areas as shown in the figure below. Note: To enable delayed sweep, the current time base mode must be “Y-T” and the “Pass/Fail test” must be disabled.
Chapter 3 To Set the Horizontal System RIGOL The Waveform after Enlargement: The waveform in the lower part of the screen is the horizontally expanded waveform. Compared to the main time base, the delayed time base has increased the waveform resolution (as shown in the figure above). Note: The delayed time base should be less than or equal to the main time base and can be modified by rotating HORIZONTAL SCALE. Tip You can also press down HORIZONTAL to quickly switch to delayed sweep mode.
RIGOL Chapter 3 To Set the Horizontal System Time Base Mode Press MENU in the horizontal control area (HORIZONTAL) at the front panel and then press Time Base to select the time base mode of the oscilloscope and the default is Y-T. Y-T Mode In this mode, the Y axis represents voltage and the X axis represents time. Note: Only when this mode is enabled can “Delayed Sweep” be turned on. In this mode, when the horizontal time base is greater than or equal to 200 ms, the instrument enters slow sweep mode.
Chapter 3 To Set the Horizontal System RIGOL According to sinθ=A/B or C/D (wherein, θ is the phase deviation angle between the two channels and the definitions of A, B, C and D are as shown in the figure above), the phase deviation angle is obtained, that is: θ=±arcsin (A/B) or ±arcsin (C/D) If the principal axis of the ellipse is within quadrant I and III, the phase deviation angle obtained should be within quadrant I and IV, namely within (0 to π/2) or (3π/2 to 2π).
RIGOL 4. Chapter 3 To Set the Horizontal System Observe the measurement result shown in the figure above. According to the measurement schematic diagram of the phase deviation (as shown in Figure 3-2), A/B (C/D) = 1. Thus, the phase deviation angle θ=±arcsin1=90°. Note: The maximum sample rate of X-Y mode is 1.0 GSa/s. Generally, longer sample waveform can ensure better display effect of Lissajous figure.
Chapter 3 To Set the Horizontal System RIGOL Roll Mode In this mode, the waveform scrolls from the right to the left to update the display. The range of horizontal scale adjustment is from 200.0 ms/div to 1.000 ks/div. Note: When Roll mode is enabled, the waveform “horizontal position”, “Delayed Sweep”, “Protocol Decoding”, “Pass/Fail Test”, “Measurement Range”, “Waveform Record”, “To Set the Persistence Time” and “To Trigger the Oscilloscope” are not available.
RIGOL Chapter 3 To Set the Horizontal System Horizontal Scale Horizontal scale, namely horizontal time base, refers to the time per grid in the horizontal direction on the screen and is usually expressed as s/div. Being similar to “Vertical Scale”, the horizontal scale can be adjusted in “Coarse” or “Fine” mode. Press MENU ScaleAdjust in the horizontal control area (HORIZONTAL) at the front panel to select the desired mode.
Chapter 3 To Set the Horizontal System RIGOL Horizontal Reference Horizontal reference is the reference position according to which the screen waveform is expanded or compressed horizontally when adjusting HORIZONTAL SCALE. In Y-T mode and the delayed sweep is disabled, press MENU HorRef in the horizontal control area (HORIZONTAL) at the front panel to select the desired reference mode and the default is “Center”.
Chapter 4 To Set the Sample System RIGOL Chapter 4 To Set the Sample System The contents of this chapter: Acquisition Mode Sample Mode Sample Rate LA Sample Rate LA Memory Depth Memory Depth Anti-Aliasing MSO2000A/DS2000A User’s Guide 4-1
RIGOL Chapter 4 To Set the Sample System Acquisition Mode The acquisition mode is used to control how to generate waveform points from sample points. Press Acquire Acquisition and use to select the desired acquisition mode (the default is “Normal”), then press down the knob to select this mode. You can also press Acquisition continuously to switch the acquisition mode. Normal In this mode, the oscilloscope samples the signal at equal time interval to rebuild the waveform.
Chapter 4 To Set the Sample System RIGOL Figure 4-1 The Waveform before Average Figure 4-2 The Waveform after 256 Averages MSO2000A/DS2000A User’s Guide 4-3
RIGOL Chapter 4 To Set the Sample System Peak Detect In this mode, the oscilloscope acquires the maximum and minimum values of the signal within the sample interval to get the envelope of the signal or the narrow pulse of the signal that might be lost. In this mode, signal confusion can be prevented, but the noise displayed would be larger.
Chapter 4 To Set the Sample System RIGOL Sample Mode This oscilloscope only supports real-time sample. In this mode, the oscilloscope samples and displays waveform within a trigger event. The maximum real-time sample rate of the analog channels of MSO2000A/DS2000A is 2 GSa/s and the current sample rate is displayed under the Sa Rate menu. Tip Press RUN/STOP to stop the sample, the oscilloscope will hold the last display.
RIGOL Chapter 4 To Set the Sample System Sample Rate Sample refers to the process that the oscilloscope converts analog signals to digital signals at certain time interval and stores the signals in sequence. The sample rate is the reciprocal of the time interval. The maximum real-time sample rate of the analog channels of MSO2000A/DS2000A is 2 GSa/s.
RIGOL Chapter 4 To Set the Sample System 3. Waveform Leakage: when the sample rate is too low, the waveform rebuilt from the sample data does not reflect all the actual signal information. Pulse disappeared LA Sample Rate LA sampling refers to the process that the oscilloscope samples the compared digital signal at a certain time interval. LA sample rate is the reciprocal of the time interval. For example, the oscilloscope with 500 MSa/s LA sample rate samples digital signals once every 2 ns.
RIGOL Chapter 4 To Set the Sample System Memory Depth Memory depth refers to the number of waveform points that the oscilloscope can store in a single trigger sample and it reflects the storage ability of the sample memory. MSO2000A/DS2000A provides 14 Mpts standard memory depth and up to 56 Mpts memory depth (option).
Chapter 4 To Set the Sample System RIGOL In “Auto” mode, the oscilloscope selects the memory depth automatically according to the current sample rate. At this point, you can adjust the memory depth indirectly by rotating HORIZONTAL SCALE to adjust the sample rate. LA Memory Depth Press Acquire, you can view the current memory depth of the digital channel in LA Mem Depth. The LA Memory Depth will change with the memory depth of the analog channel and cannot be set separately.
Chapter 5 To Trigger the Oscilloscope RIGOL Chapter 5 To Trigger the Oscilloscope As for trigger, you set certain trigger condition according to the requirement and when a waveform in the waveform stream meets this condition, the oscilloscope captures this waveform as well as the neighbouring part and displays them on the screen. For digital oscilloscope, it displays waveform continuously no matter whether it is stably triggered, but only stable trigger can ensures stable display.
RIGOL Chapter 5 To Trigger the Oscilloscope Trigger Source Press MENU Source in the trigger control area (TRIGGER) at the front panel to select the desired trigger source. Signals input from CH1/CH2, the [EXT TRIG] connector or [LOGIC D0-D15] connector as well as the AC Line can all be used as trigger source. Analog channel input: Signals input from analog channels CH1 and CH2 can all be used as the trigger source. No matter whether the channel selected is enabled, the channel can work normally.
RIGOL Chapter 5 To Trigger the Oscilloscope Trigger Mode The following is the schematic diagram of the acquisition memory. To easily understand the trigger event, the acquisition memory is divided into the pre-trigger buffer and post-trigger buffer. Trigger Event Pre-trigger Buffer Post-trigger Buffer Acquisition memory Figure 5-1 Schematic Diagram of the Acquisition Memory After the system runs, the oscilloscope operates by first filling the pre-trigger buffer.
RIGOL Chapter 5 To Trigger the Oscilloscope Normal: In this trigger mode, the oscilloscope triggers and samples data only when the specified trigger condition is found. This trigger mode should be used when the signal is with low repetition rate or only the event specified by the trigger setting needs to be sampled as well as when auto trigger should be prevented to acquire stable display.
Chapter 5 To Trigger the Oscilloscope RIGOL Trigger Coupling Trigger coupling decides which kind of components will be transmitted to the trigger module. Please distinguish it with “Channel Coupling”. DC: allow DC and AC components into the trigger path. AC: block all the DC components and attenuate signals lower than 75 Hz. LF Reject: block the DC components and reject the low frequency components (lower than 75 kHz). HF Reject: reject the high frequency components (higher than 75 kHz).
RIGOL Chapter 5 To Trigger the Oscilloscope Trigger Holdoff Trigger holdoff can be used to stably trigger the complex waveforms. Holdoff time is the amount of time that the oscilloscope waits before re-arming the trigger module. The oscilloscope will not trigger even if the trigger condition is met during the holdoff time and will only re-arm the trigger module after the holdoff time expires.
Chapter 5 To Trigger the Oscilloscope RIGOL Noise Rejection Noise rejection can reject the high frequency noise in the signal and reduce the possibility of miss-trigger of the oscilloscope. Press MENU Setting Noise Reject in the trigger control area (TRIGGER) at the front panel to enable or disable noise rejection. Note: When the trigger source is any of D0 to D15, Noise Reject is grayed out and disabled.
RIGOL Chapter 5 To Trigger the Oscilloscope Trigger Type MSO2000A/DS2000A provides various trigger types, including various serial bus triggers. You can press MENU (in the trigger control area (TRIGGER) at the front panel) Type to select the desired trigger type.
Chapter 5 To Trigger the Oscilloscope RIGOL Edge Trigger Trigger on the trigger threshold of the specified edge of the input signal. Trigger Type: Press Type, rotate to select “Edge” and press down . At this point, the trigger setting information is displayed at the upper right corner of the screen. For example, . The trigger type is edge trigger; the trigger source is CH1; the trigger level is 170 mV. Source Selection: Press Source and select CH1, CH2, EXT, AC Line or any channel of D0-D15.
RIGOL Chapter 5 To Trigger the Oscilloscope Trigger Level: Trigger occurs only when the signal reaches the preset trigger level. Use TRIGGER LEVEL to modify the level. If the current trigger source is a digital channel, the trigger level value will be displayed at the upper right corner of the screen.
RIGOL Chapter 5 To Trigger the Oscilloscope Pulse Trigger In pulse trigger mode, the oscilloscope will trigger when the pulse width of the input signal satisfies the specified pulse width condition. Trigger Type: Press Type, rotate to select “Pulse” and press down . At this point, the trigger setting information is displayed at the upper right corner of the screen. For example, . The trigger type is pulse trigger; the trigger source is CH1; the trigger level is 0.00 V.
RIGOL Chapter 5 To Trigger the Oscilloscope the specified pulse width. : trigger when the positive pulse width of the input signal is lower than the specified pulse width. : trigger when the positive pulse width of the input signal is greater than the specified lower limit of pulse width and lower than the upper limit of pulse width. : trigger when the negative pulse width of the input signal is greater than the specified pulse width.
Chapter 5 To Trigger the Oscilloscope RIGOL Trigger Level: LEVEL to modify the level. For the details, please refer to the Use TRIGGER introduction of “Trigger Level”.
RIGOL Chapter 5 To Trigger the Oscilloscope Runt Trigger Runt trigger is used to trigger pulses that pass one trigger level but fail to pass the other one. For this oscilloscope, positive runt pulses are defined as pulses that pass the lower limit of the trigger level but fail to pass the upper limit of the trigger level; negative runt pulses are defined as pulses that pass the upper limit of the trigger level but fail to pass the lower limit of the trigger level, as shown in the figure below.
Chapter 5 To Trigger the Oscilloscope RIGOL Qualifier: Press Qualifier to set the trigger conditions of runt trigger. None: do not set the trigger condition of runt trigger. >: trigger when the runt pulse width is greater than the lower limit of pulse width.
RIGOL Chapter 5 To Trigger the Oscilloscope upper limit and Low Level denotes the trigger level lower limit. The trigger level lines and trigger marks disappear after you stop rotating the knob for about 2 s. The adjustment mode of the trigger level differs when different vertical window is selected. : only adjust the upper limit of the trigger level. During the adjustment, the “Up Level” changes accordingly and “Low Level” remains unchanged. : only adjust the lower limit of the trigger level.
Chapter 5 To Trigger the Oscilloscope RIGOL Windows Trigger (Option) Windows trigger provides a high trigger level and a low trigger level. The oscilloscope triggers when the rising edge of the input signal passes through the high trigger level or when the falling edge of the input signal passes through the low trigger level. Trigger Type: Press Type, rotate to select “Windows” and press down . At this point, the trigger setting information is displayed at the upper right corner of the screen.
RIGOL Chapter 5 To Trigger the Oscilloscope the default is 1.00 μs. Vertical Window and Trigger Level: Press Vertical to select the desired vertical window type. Rotate TRIGGER LEVEL to adjust the trigger level. For the detailed operation, please refer to “Vertical Window and Trigger Level”. Trigger Mode: Press Sweep and select “Auto”, “Normal” or “Single”. For the details, please refer to “Trigger Mode”. The corresponding status light of the current trigger mode turns on.
RIGOL Chapter 5 To Trigger the Oscilloscope Nth Edge Trigger (Option) Trigger on the nth edge that appears after the specified idle time. For example, in the waveform shown in the figure below, the instrument should trigger on the second rising edge after the specified idle time (the time between two neighbouring rising edges) and the idle time should be set to P
RIGOL Chapter 5 To Trigger the Oscilloscope : trigger on the falling edge of the input signal when the voltage level meets the specified trigger level. Idle Time: Press Idle to set the idle time before the edge counting in Nth edge trigger. Use or the inner knob of the navigation knob to adjust the idle time at a relatively smaller step or turn the outer knob of the navigation knob to adjust the idle time at a relatively larger step. The range available is from 16 ns to 4 s.
RIGOL Chapter 5 To Trigger the Oscilloscope Slope Trigger In slope trigger, the oscilloscope triggers on the positive slope or negative slope with the specified time. Trigger Type: Press Type, rotate to select “Slope” and press down . At this point, the trigger setting information is displayed at the upper right corner of the screen. For example, .
RIGOL Chapter 5 To Trigger the Oscilloscope the specified lower limit of time and lower than the specified upper limit of time. : trigger when the negative slope time of the input signal is greater than the specified time. : trigger when the negative slope time of the input signal is lower than the specified time. : trigger when the negative slope time of the input signal is greater than the specified lower limit of time and lower than the specified upper limit of time.
RIGOL Chapter 5 To Trigger the Oscilloscope When the Slope Condition is set to , , , or , the current trigger level and slew rate will be displayed at the lower left corner of the screen, as shown in Figure 5-7 (a). The formula of slew rate is: UpLevel - LowLevel SlewRate = Time When the Slope Condition is set to or , the current trigger level and slew rate range will be displayed at the lower left corner of the screen, as shown in Figure 5-7 (b).
RIGOL Chapter 5 To Trigger the Oscilloscope Video Trigger (HDTV Option) The video signal can include image information and timing information and can adopt various standards and formats. MSO2000A/DS2000A can trigger on the standard video signal field or line of NTSC (National Television Standards Committee), PAL (Phase Alternating Line), SECAM (Sequential Couleur A Memoire) or HDTV (High Definition Television). Trigger Type: Press Type, rotate to select “Video” and press down .
Chapter 5 To Trigger the Oscilloscope RIGOL Video Standard: Press Standard to select the desired video standard. NTSC: the field frequency is 60 fields per second and the frame frequency is 30 frames per second. The TV scan line is 525 with the even field goes first and the odd field follows behind. PAL/SECAM: --PAL: the frame frequency is 25 frames per second. The TV scan line is 625 with the odd field goes first and the even field follows behind. --SECAM: the frame frequency is 25 frames per second.
RIGOL Chapter 5 To Trigger the Oscilloscope Tips For a better observation of the waveform details in the video signal, you can set a larger memory depth first. In the trigger debugging process of video signals, the frequency in different part of the signal can be reflected by different brightness as RIGOL digital oscilloscopes provides the multi-level gray scale display function. Experienced users can quickly judge the signal quality and discover abnormalities.
RIGOL Chapter 5 To Trigger the Oscilloscope Pattern Trigger This trigger mode identifies a trigger condition by looking for a specified pattern. The pattern is a logical “AND” combination of the channels. Each channel can have a value of high (H), low (L) or don’t care (X). A rising or falling edge can be specified for one channel included in the pattern.
RIGOL Chapter 5 To Trigger the Oscilloscope : set the pattern of the channel selected to “H”, namely the voltage level is higher than the threshold level of the channel. : set the pattern of the channel selected to “L”, namely the voltage level is lower than the threshold level of the channel. : set the pattern of the channel selected to “Don’t Care”, namely this channel is not used as a part of the pattern.
RIGOL Chapter 5 To Trigger the Oscilloscope Delay Trigger (Option) In delay trigger, you need to set signal source A and signal source B. The oscilloscope triggers when the time difference (△T) between the specified edges of source A (Edge A) and source B (Edge B) meets the preset time limit, as shown in the figure below. Note: Edge A and Edge B must be neighbouring edges. Edge A= Edge B= Source A Source B T Figure 5-9 Delay Trigger Trigger Type: Press Type to open the trigger type list.
RIGOL Chapter 5 To Trigger the Oscilloscope Source B: Press SourceB to select CH1, CH2 or any channel of D0-D15 as the trigger source of signal source B. For the details, please refer to the introduction in “Trigger Source”. The signal source currently selected is displayed in the upper-right corner of the screen. Note: Select channel with signal input as trigger source to obtain stable trigger. Edge B: Press EdgeB to select the trigger edge type of signal source B in delay trigger.
Chapter 5 To Trigger the Oscilloscope RIGOL Lower Limit and adjust the delay time lower limit of delay trigger using or the navigation knob by referring to the method mentioned above; the settable range is from 2 ns to 3.99 s. Note: The time lower limit must be lower than the time upper limit. Trigger Mode: Press Sweep to open the trigger mode list and select “Auto”, “Normal” or ”Single”. For the details, please refer to “Trigger Mode”. The corresponding status light of the current trigger mode turns on.
RIGOL Chapter 5 To Trigger the Oscilloscope TimeOut Trigger (Option) In timeout trigger, the instrument triggers when the time interval (△T) from when the rising edge (or falling edge) of the input signal passes through the trigger level to when the neighbouring falling edge (or rising edge) passes through the trigger level is greater than the timeout time set, as shown in the figure below. Time Out< T T Time Out Figure 5-10 TimeOut Trigger Trigger Type: Press Type to open the trigger type list.
Chapter 5 To Trigger the Oscilloscope RIGOL level. Timeout Time: The timeout time refers to the longest period of time that the signal remains unchanged after it passes through the trigger level. Press TimeOut and use or the inner knob of the navigation knob to adjust the timeout time at a relatively smaller step or use the outer knob of the navigation knob to adjust the timeout time at a relatively larger step. The range is from 16 ns to 4 s.
RIGOL Chapter 5 To Trigger the Oscilloscope Duration Trigger (Option) In duration trigger, the instrument identifies a trigger condition by looking for the duration of a specified pattern. This pattern is a logical “AND” combination of the two channels. Each channel can have a value of high (H), low (L) or don’t care (X). The instrument triggers when the duration (△T) of this pattern meets the preset time, as shown in the figure below.
Chapter 5 To Trigger the Oscilloscope RIGOL : set the pattern of the channel selected to “L”, namely the voltage level is lower than the threshold level of the channel. : set the pattern of the channel selected to “Don’t Care”, namely this channel is not used as a part of the pattern. When both the channels in the pattern are set to “Don’t Care”, the oscilloscope will not trigger. Trigger Condition: Press When to select the desired trigger condition.
RIGOL Chapter 5 To Trigger the Oscilloscope Setup/Hold Trigger In setup/hold trigger, you need to set the data signal line and clock signal line. The setup time starts when the data signal passes the trigger level/threshold level and ends at the coming of the specified clock edge; the hold time starts at the coming of the specified clock edge and ends when the data signal passes the trigger level/threshold level again (as shown in the figure below).
Chapter 5 To Trigger the Oscilloscope RIGOL Edge Type: Press Slope to select the desired clock edge type and it can be set to the rising edge ( ) or falling edge ( ). Data Type: Press Pattern to set the effective pattern of the data signal to H (high level) or L (low level). Setup Type: Press SetupType to select the desired setup type. Setup: the oscilloscope will trigger only according to the setup time.
RIGOL Chapter 5 To Trigger the Oscilloscope RS232 Trigger RS232 bus is a serial communication mode used in the data transmission between PCs or between PC and terminal. In RS232 serial protocol, a character is transmitted as a frame of data which consists of 1 bit start bit, 5~8 bits data bits, 1 bit check bit and 1~2 bits stop bit(s). Its format is as shown in the figure below.
Chapter 5 To Trigger the Oscilloscope RIGOL Error: trigger when error frame is detected. After this trigger condition is selected: --press Stop Bit to select “1 bit” or “2 bit”; --press Even-Odd to select “None”, “Odd” or “Even”. The oscilloscope will determine error frame according to the preset parameters. Check Error: trigger when check error is detected. When this trigger condition is selected: --press Stop Bit to select “1 bit” or “2 bit”. --press Even-Odd to select “Odd” or “Even”.
RIGOL Chapter 5 To Trigger the Oscilloscope Trigger Level: LEVEL to modify the level. For the details, please refer to the Use TRIGGER introduction of “Trigger Level”.
Chapter 5 To Trigger the Oscilloscope RIGOL I2C Trigger I2C is a 2-wire serial bus used to connect the microcontroller and its peripheral device and is a bus standard widely used in the microelectronic communication control field. The I2C serial bus consists of SCL and SDA. Its transmission rate is determined by SCL and its transmission data is determined by SDA, as shown in the figure below.
RIGOL Chapter 5 To Trigger the Oscilloscope Trigger Condition: Press When to select the desired trigger condition. Start: trigger when SDA data transitions from high to low while SCL is high. Restart: trigger when another start condition occurs before a stop condition. Stop: trigger when SDA data transitions from low to high while SCL is high. Missing ACK: trigger when the SDA data is high during any acknowledgement of SCL clock position.
Chapter 5 To Trigger the Oscilloscope RIGOL Trigger Mode: Press Sweep to open the trigger mode list and select “Auto”, “Normal” or ”Single”. For the details, please refer to “Trigger Mode”. The corresponding status light of the current trigger mode turns on. Trigger Setting: Press Setting to set the trigger parameters (noise rejection) under this trigger type. Note: Noise rejection is grayed out and disabled automatically when the signal source is set to any channel of D0-D15.
RIGOL Chapter 5 To Trigger the Oscilloscope SPI Trigger Trigger on the data pattern on the specified edge. When using SPI trigger, you need to specify the SCL and SDA data sources. Below is the sequence chart of SPI bus data transmission.
Chapter 5 To Trigger the Oscilloscope RIGOL Trigger Condition: Press When to select the desired trigger condition. CS: while the CS signal is valid, the oscilloscope begins to search for the data (SDA) satisfying the conditions and triggers when it is found. After this trigger condition is selected: --press CS to select the CS signal source. It can be set to CH1, CH2 or any channel of D0-D15. For the details, please refer to the introduction in “Trigger Source”.
RIGOL Chapter 5 To Trigger the Oscilloscope Trigger Setting: Press Setting to set the trigger parameters (noise rejection) under this trigger type. Note: Noise rejection is grayed out and disabled automatically when the signal source is set to any channel of D0-D15. Trigger Level: Press SCL and use TRIGGER LEVEL to modify the trigger level of the SCL channel. Press SDA and use TRIGGER LEVEL to modify the trigger level of the SDA channel.
Chapter 5 To Trigger the Oscilloscope RIGOL USB Trigger (Option) Trigger on the SOP, EOP, RC, Suspend and Exit Suspend of the data packet on the differential USB data cable (D+ and D-). This trigger supports USB Low Speed and Full Speed. The figure below shows the USB data transmission protocol. Figure 5-16 USB Trigger Trigger Type: Press Type to open the trigger type list. Rotate and press down to select “USB”.
RIGOL Chapter 5 To Trigger the Oscilloscope ExitSuspend: trigger when the bus exits from idle state for more than 10 ms. Trigger Mode: Press Sweep to open the trigger mode list and select “Auto”, “Normal” or ”Single”. For the details, please refer to “Trigger Mode”. The corresponding status light of the current trigger mode turns on. Trigger Setting: Press Setting to set the trigger parameters (noise rejection) under this trigger type.
Chapter 5 To Trigger the Oscilloscope RIGOL CAN Trigger (Option) MSO2000A/DS2000A oscilloscope provides CAN bus trigger and decoding functions for better CAN bus analysis. Trigger on the start frame, end frame, specified frame type or error frame of the CAN signal. When using CAN trigger, you need to specify the signal source, signal rate and trigger signal type of the CAN signal. The figure below shows the standard and expanded formats of CAN bus data frame.
RIGOL Chapter 5 To Trigger the Oscilloscope current trigger source is displayed at the upper right corner of the screen. Note: Select channel with signal input as trigger source to obtain stable trigger. Signal Type: Press Signal Type to select the desired signal type. Rx: receiving signal on the CAN signal line. Tx: transmission signal on the CAN signal line. CAN_H: actual CAN_H bus signal. CAN_L: actual CAN_L bus signal.
RIGOL Chapter 5 To Trigger the Oscilloscope method mentioned above. The range is from 0 to 2047 (standard ID format) or 0 to 536870911 (expanded ID format). Frame Error: after selecting this type, press Error Type to select to trigger on the “Bit Fill”, “Answer Error”, “Check Error”, “Format Error” or “Random Error”. Baud: Press Baud to set the CAN baud to match the CAN bus signal and the values available are 10 kb/s (default), 20 kb/s, 33.3 kb/s, 50 kb/s, 62.5 kb/s, 83.
RIGOL Chapter 5 To Trigger the Oscilloscope Trigger Level: LEVEL to modify the level. For the details, please refer to the Use TRIGGER introduction of “Trigger Level”.
RIGOL Chapter 5 To Trigger the Oscilloscope Trigger Output Connector The trigger output connector ([Trigger Out]) at the rear panel of the oscilloscope can output trigger signals determined by the current setting. Trigger Output Connector The oscilloscope can output a signal that reflects the current capture rate of the oscilloscope from the [Trigger Out] connector each time a trigger is generated.
Chapter 6 MATH and Measurements RIGOL Chapter 6 MATH and Measurements MSO2000A/DS2000A can make math operation, auto measurement and cursor measurement on sampled and displayed data.
RIGOL Chapter 6 MATH and Measurements Math Operation MSO2000A/DS2000A can realize various math operations (including: addition (A+B), subtraction (A-B), multiplication (AxB), division (A÷B), FFT, digital filter, logic operation and advanced operation) of waveforms between channels. The results of math operation also allow further measurement. Press MATH Operate in the vertical control area (VERTICAL) at the front panel to select the desired operation function.
Chapter 6 MATH and Measurements RIGOL Press Label to define a label for the operation results. For the details, please refer to “MATH Label”. HORIZONTAL POSITION and HORIZONTAL SCALE can also be used to adjust the horizontal position and scale of the operation results. Multiplication Multiply the waveform voltage values of signal source A and B point by point and display the results.
RIGOL 6-4 Chapter 6 MATH and Measurements HORIZONTAL POSITION and HORIZONTAL SCALE can also be used to adjust the horizontal position and scale of the operation results.
RIGOL Chapter 6 MATH and Measurements FFT FFT is used to quickly perform Fourier transform on specified signals and transform time domain signals to frequency domain signals. MSO2000A/DS2000A oscilloscope provides FFT operation function which enables users to observe the time domain waveform and spectrum of the signal at the same time.
RIGOL Chapter 6 MATH and Measurements MSO2000A/DS2000A provides four kinds of FFT window functions which have different characteristics and are applicable to measure different waveforms. You need to select the window function according to the waveform to be measured and its characteristics. Press Window to select the desired window function and the default is “Rectangle”. Table 6-1 Window Functions 3.
Chapter 6 MATH and Measurements RIGOL Note: In FFT mode and when MATH is the active channel, you can also press HORIZONTAL SCALE to switch between “Split” and “Full Screen”. 4. Set Horizontal Position and Horizontal Scale The horizontal axis of the FFT operation results represents frequency and its unit is Hz. Use HORIZONTAL POSITION and HORIZONTAL SCALE to set the horizontal position and horizontal scale of the FFT frequency domain waveform respectively.
RIGOL Chapter 6 MATH and Measurements Digital Filter MSO2000A/DS2000A provides 4 types of digital filters (Low Pass Filter, High Pass Filter, Band Pass Filter and Band Reject Filter). The frequencies with the specified waveform band can be filtered by setting the bandwidth range. Press MATH Operate to select “Digital Filter” and set the parameters of the digital filter. 1. Select the Filter Type Press Filter Type to select the desired filter type.
RIGOL Chapter 6 MATH and Measurements 4. Adjust the Vertical Position and Vertical Scale and respectively and use Press vertical scale of the operation result. to adjust the vertical position and 5. Adjust the Horizontal Position and Horizontal Scale Use HORIZONTAL POSITION and HORIZONTAL SCALE to adjust the horizontal position and horizontal scale of the operation result respectively. 6. Label Press Label to define a label for the math operation result.
RIGOL Chapter 6 MATH and Measurements Logic Operation Perform logic operation on the waveform voltage values of the specified sources point by point and display the results. In operation, when the voltage value of the source channel is greater than the threshold of the corresponding channel, it is regarded as logic “1”; otherwise logic “0”. The following common logic operation expressions are provided.
Chapter 6 MATH and Measurements RIGOL Press MATH Operate to select “Logic”: Press Formula to select the desired logic formula and the default is “AND”. Press Source A and Source B respectively to select the desired channels (CH1, CH2 or any channel of D0-D15). Press and use to adjust the vertical position of the operation results. Press and use to adjust the vertical scale of the operation results. Press Invert to turn the inverted display of the operation results on or off.
RIGOL Chapter 6 MATH and Measurements Advanced Operation MSO2000A/DS2000A provides advanced operation function that allows users to define operation functions. Press MATH Operate “Advanced” Expression “ON” and the editing window as shown in the figure below is displayed.
Chapter 6 MATH and Measurements RIGOL 2. Channel You can select any channel of CH1 and CH2 or select both of the two channels. 3. Function The functions of the functions are listed in the following table. Note: The left brackets “(” here are only used to facilitate your entry and they are not a part of the function names. Table 6-3 Functions 4. Name Function Intg( Calculate the integral of the selected source. You can use integral to measure the area under a waveform or the pulse energy.
RIGOL Chapter 6 MATH and Measurements For example, Variable1 is set to 6.1074×108 via the following settings. Variable: Variable1 Mantissa: 6.1074 Exponent: 8 5. Operator The functions of the operators are listed in the following table. Table 6-4 Operators 6.
Chapter 6 MATH and Measurements RIGOL Auto Measurement MSO2000A/DS2000A provides auto measurements of 29 waveform parameters and the statistics and analysis of the measurement results. What’s more, you can also use the frequency counter to realize more precise frequency measurement. Quick Measurement after AUTO When a valid signal is input into the oscilloscope, press AUTO to enable the waveform auto setting function and open the auto setting menu.
RIGOL Chapter 6 MATH and Measurements Note: The waveform auto setting function requires that the frequency of the sine should be no lower than 25 Hz. If the parameter exceeds the limit, the waveform auto setting function might be invalid.
Chapter 6 MATH and Measurements RIGOL One-key Measurement of 29 Parameters Press MENU at the left of the screen to turn on the measurement menu of the 29 parameters and then press the corresponding menu softkey to quickly realize “One-key” measurement. The measurement result will be displayed at the bottom of the screen. Note: Press Measure Source to select the current measurement source.
RIGOL Chapter 6 MATH and Measurements Time Parameters FallTime RiseTime Threshold Upper Limit +Width -Width Threshold Middle Value Threshold Lower Limit Period Figure 6-3 Time Parameters 1. 2. 3. 4. 5. 6. 7. 8. Period: the time between the threshold middle value of one edge to the threshold middle value of the next edge with the same polarity. Frequency: defined as the reciprocal of period.
RIGOL Chapter 6 MATH and Measurements Delay and Phase Period Source A Delay Source B Figure 6-4 Delay and Phase Source A and source B can be CH1, CH2 or any of D0 to D15. You can set them via Measure Setting Type “Delay” (“Phase”). For the setting method, refer to “Measurement Setting”. 1. Dly A →B : the time difference between the threshold middle values of the 2. rising edges of source A and source B. Dly A →B : the time difference between the threshold middle values of the 3.
RIGOL Chapter 6 MATH and Measurements Note: Negative delay value/negative phase value indicates that the edge selected of source A occurred after the edge selected of source B. Phase is expressed in degree and the calculation formula is as shown below. Phase = Delay × 360° PeriodA Wherein, Phase is the phase measurement result; Delay is the delay measurement result; PeriodA is the period of source A.
RIGOL Chapter 6 MATH and Measurements Voltage Parameters Overshoot Vmax Vtop Vpp Vamp Vbase Vmin Preshoot Figure 6-5 Voltage Parameters 1. 2. 3. 4. 5. 6. 7. Vmax: the voltage value from the highest point of the waveform to the GND. Vmin: the voltage value from the lowest point of the waveform to the GND. Vpp: the difference between the maximum value and the minimum value of the waveform. Vtop: the voltage value from the flat top of the waveform to the GND.
RIGOL Chapter 6 MATH and Measurements Wherein, xi is the measurement result of the ith point being measured; n is the total number of points being measured. 9. Vrms-1: the root mean square value of the voltage values of the waveform points (relative to the GND) within a single period. The calculation formula is as shown above. 10. Overshoot: the ratio of the difference of the maximum value and top value of the waveform to the amplitude value. 11.
Chapter 6 MATH and Measurements RIGOL Frequency Counter Measurement The hardware frequency counter supplied with MSO2000A/DS2000A oscilloscope can make more precise measurement of the input signal frequency. Press Measure Counter to select CH1, CH2 or any channel of D0-D15 as the measurement source. Besides, the signal input from the [EXT TRIG] connector can also be used as measurement source.
RIGOL Chapter 6 MATH and Measurements Measurement Setting 1. Source Selection Press Measure Source to select the source channel (CH1, CH2, MATH or any channel of D0-D15) of the time, voltage or area parameter. The color of the parameter icons under MENU at the left of the screen will change with the source selected. 2. Measurement Range Press Measure Range Range to select “Screen” or “Cursor” for measurement. When “Cursor” is selected, two cursor lines appear on the screen.
Chapter 6 MATH and Measurements RIGOL SourceB can only be set to an analog channel (or digital channel). 4. Phase Measurement Setting Specify source A and source B in the measurement items “Phs A →B ”, “Phs A →B ”, “Phs A →B ” and “Phs A →B ”. Press Measure Setting Type “Phase” and then press SourceA and SourceB to set the two channel sources (CH1, CH2 or any channel of D0-D15) of phase measurement respectively.
RIGOL Chapter 6 MATH and Measurements To Clear the Measurement If you have currently enabled one or more items in the 29 measurement parameters, you can “Delete” or “Recover” the last five parameters or “Delete” or “Recover” all the measurement items enabled. Note: The last five parameters are determined according to the order in which you turned them on and they will not change as you delete one or more measurement items.
Chapter 6 MATH and Measurements RIGOL All Measurement All measurement could measure all the time and voltage parameters (each measurement source has 21 items, measurements can be performed on CH1, CH2 and MATH at the same time) of the current measurement source and display the results on the screen. Press Measure Display All to enable or disable the all measurement function. Press Measure Source and use to select the channel(s) to be measured (CH1, CH2 and MATH).
RIGOL Chapter 6 MATH and Measurements Statistic Function Make statistic and display the current, average, minimum (or standard deviation) and maximum (or count) values of at most 5 measurement items that are turned on last. Press Measure Statistic to turn the statistic function on or off. When the statistic function is enabled, press Mode to select “Extremum” or “Difference” measurement.
RIGOL Chapter 6 MATH and Measurements Cursor Measurement Before making cursor measurements, connect the signal to the oscilloscope and acquire stable display. Cursor measurement can measure the X axis values (usually Time) and Y axis values (usually Voltage) of the selected waveform. All the parameters supported by the “Auto Measurement” function can also be measured through cursors. The cursor measurement function provides the following two kinds of cursors.
RIGOL Chapter 6 MATH and Measurements modes available are “Manual”, “Track”, “Auto” and “X-Y”. When “OFF” is selected, the cursor measurement function is turned off. When the “Time Base Mode” is “X-Y”, only X-Y cursor mode is available. Manual Mode In this mode, you can adjust the cursors manually to measure the X value (or Y value), X increment (or Y increment) between cursors and the reciprocal of X increment on the waveform of the selected source (CH1, CH2 or MATH).
Chapter 6 MATH and Measurements RIGOL △X: the horizontal difference between cursor A and B. 1/△X: the reciprocal of the horizontal difference between cursor A and B. △Y: the vertical difference between cursor A and B. Note: The display mode of the measurement results displayed at the upper left corner of the screen will be different in different cursor display mode, measurement source and units currently selected.
RIGOL Chapter 6 MATH and Measurements The Y cursors are a pair of horizontal solid/dotted lines and are usually used to measure voltage parameters. The X-Y cursors are a pair of vertical solid/dotted lines and a pair of horizontal solid/dotted lines and are usually used to measure time and voltage parameters at the same time. Note: When the current measurement source is LA, the cursor type is “X” and cannot be set. 2.
Chapter 6 MATH and Measurements RIGOL °: in the measurement results, A->X, B->X and △X are expressed in degree. At this point, A->X, B->X and △X will change to “0°”, “360°” and “360°” respectively when you press SetCursor, no matter where cursor A and cursor B are currently located. At the same time, two cursor lines (unmovable) appear on the screen as the reference positions. %: in the measurement results, A->X, B->X and △X are expressed in percentage.
RIGOL Chapter 6 MATH and Measurements %: in the measurement results, CurA, CurB and △X are expressed in percentage. For the description and setting method of ratio reference position, please refer to the related introduction above. 5. Adjust the Cursor Position Adjust the horizontal positions of the cursors: When the display mode is “X” or “X-Y” (press SelectCursor to select “X”) mode, press CursorA and CursorB and use to adjust the horizontal positions of cursor A and cursor B respectively.
Chapter 6 MATH and Measurements RIGOL Track Mode In this mode, you can adjust the two cursors (cursor A and cursor B) to measure the X and Y values on two different sources respectively. The points being measured on cursor A and B are marked by an orange rectangle and rhombus respectively. When the cursors are moved horizontally, the marks will position on the waveform automatically.
RIGOL Chapter 6 MATH and Measurements or cursor B (only channels enabled are available). You can also select “None”, namely do not use cursor A or cursor B. 2. Adjust Cursor Position Adjust cursor A: press CursorA and use to adjust the position of cursor A. During the adjustment, the measurement result will change accordingly. The adjustable range is limited within the screen. Adjust cursor B: press CursorB and use to adjust the position of cursor B.
Chapter 6 MATH and Measurements RIGOL Track Measurement (Before Horizontal Expansion): Track Measurement (After Horizontal Expansion): MSO2000A/DS2000A User’s Guide 6-37
RIGOL Chapter 6 MATH and Measurements Auto Mode In this mode, one or more cursors will appear. You can use auto cursor measurement to measure any of the 29 waveform parameters. Before using this mode, you need to at least enable one auto measurement parameter and the number of cursors will change with the measurement parameter enabled.
Chapter 6 MATH and Measurements RIGOL X-Y Mode X-Y mode is only available when the main time base is “X-Y” mode. In this mode, you can adjust the cursor to measure X and Y values of the crossing points of the two pairs of cursors. Press MENU at the horizontal control are (HORIZONTAL) at the front panel and then press Time Base to select “X-Y”. Press Cursor Mode “X-Y” to enable the X-Y mode cursor measurement function. You can also press MENU or Mode continuously to switch to “X-Y”.
Chapter 7 Digital Channel RIGOL Chapter 7 Digital Channel MSO2000A series mixed signal digital oscilloscope provides 2 analog channels as well as 16 digital channels. For the digital channels, the oscilloscope compares the voltages acquired in each sample with the preset logic threshold. If the voltage of the sample point is greater than the logic threshold, it will be stored as logic 1; otherwise, it will be stored as logic 0.
RIGOL Chapter 7 Digital Channel To Select the Digital Channel Press LA CH/Group, rotate the multifunction knob to select any of the digital channels or user-defined digital channel groups. You can also press CH/Group continuously or to switch among the options in order. D0-D15: select any channel of D0-D15. The channel label and waveform corresponding to the channel selected are displayed in red. Group1-Group4: select any of the user-defined groups Group1-Group4.
Chapter 7 Digital Channel RIGOL To Turn on/off the Digital Channel Press LA On/Off to enter the digital channel/group “On/Off” setting menu. Press D7-D0 to turn on or off channels D7-D0 at the same time. Press D15-D8 to turn on or off channels D15-D8 at the same time. Press Sel CH to turn on the channel list. Rotate to select any channel and press to turn on or off the channel. You can also press Sel CH continuously to turn on or off the selected channel.
RIGOL Chapter 7 Digital Channel Group Set Press LA Group Set to enter the user-defined group setting menu. You can perform group and ungroup operations on the 16 digital channels. Group: The group operations of Group1-Group4 are the same and Group1 is taken asaneaxample for illustration. Press Group1 to turn on the channel list (the status label is located at the left side of each channel), rotate to select the channel to be added into Group1 and press or Group1 to add the channel selected to Group1.
Chapter 7 Digital Channel RIGOL To Set the Waveform Display Size Press LA WaveSize, rotate to select the desired display size and the press down . You can also press WaveSize continuously to switch among S (small), M (medium) and L (large). Note: L (large) can only be used when the number of channels currently turned on is no more than 8. Reorder Setting Press LA ReOrder to select the waveform order mode on the screen of the channels currently selected.
RIGOL Chapter 7 Digital Channel To Use the Digital Bus Users can display the three groups of channels (D7-D0, D15-D8 and D15-D0) as digital buses according to their needs. Each bus value will be displayed at the bottom of the screen in data or graph form. You can create up to 2 buses. Press LA Bus to enter the digital bus setting menu. Press Bus to select “BUS1” or “BUS2”. Press BusStatus to turn on or off the digital bus.
RIGOL Chapter 7 Digital Channel bus data varies. When the jitter rejection is turned on, the bus does not display the variation of the bus data caused by certain jitter time and still holds the effective data. Press Jitter Time and use or the inner knob of the navigation knob to adjust the jitter time at a relatively smaller step or use the outer knob of the navigation knob to adjust the jitter time at a relatively larger step. The range is from 1 ns to 1 ms.
RIGOL Chapter 7 Digital Channel Digital Channel Delay Calibration When using the oscilloscope for actual measurement, the transmission delay of the probe cable may cause relatively larger error (zero offset). Zero offset is defined as the offset of the crossing point of the waveform and threshold level line relative to the trigger position. For MSO2000A, users can set a delay time to calibrate the zero offset of the digital channels. Press LA Delay-Cal and rotate from -100 ns to 100 ns.
Chapter 8 Protocol Decoding RIGOL Chapter 8 Protocol Decoding Protocol analysis can be used by users to discover errors, debug hardware and accelerate development easily, so as to guarantee quick and high-quality accomplishment of projects. Protocol decoding is the basis of protocol analysis. Only protocol analyses with correct protocol decoding are acceptable and only correct protocol decoding can provide more error information.
RIGOL Chapter 8 Protocol Decoding Parallel Decoding Parallel bus consists of clock line and data line. As shown in the figure below, CLK is the clock line, while Bit0 and Bit1 are the 0 bit and 1st bit on the data line respectively. The oscilloscope will sample the channel data on the rising edge, falling edge or the rising/falling edge of the clock and judge each data point (logic “1” or logic “0”) according to the preset threshold level.
Chapter 8 Protocol Decoding RIGOL default is 0 and the range available is from 0 to (the bus bits-1). For example, when the bus bits is 18, the range available is 0, 1…17. Next, press Channel to specify a channel source for the bit currently selected in CurrentBit. The channel source can be CH1, CH2 or any channel of D0-D15. 3. Analog Channel Threshold Setting Press Threshold to open the threshold setting menu. Press Channel to select the desired channel (CH1 or CH2).
RIGOL Chapter 8 Protocol Decoding Figure 8-2 Parallel Event Table At this point, “Table” is selected in the View menu automatically and the menu is grayed out. The decoded data is displayed in table format following the time order. If an USB storage device is currently connected to the instrument, press Export to export the data table to the external USB storage device in CSV format.
RIGOL Chapter 8 Protocol Decoding RS232 Decoding (Option) RS232 serial bus consists of the transmitting data line (TX) and the receiving data line (RX). The industry standard of RS232 uses “Negative Logic”, namely high level is logic “0” and low level is logic “1”. 0 1 0 1 1 0 1 0 1 1 Figure 8-3 RS232 Industrial Standard Schematic Diagram By default, RS232 uses LSB (Least Significant Bit) transmission sequence, namely the lowest bit of the data is transmitted first.
RIGOL Chapter 8 Protocol Decoding Press Decode1 Decode to select “RS232” to open the RS232 decoding function menu. If the current trigger type of the trigger system is RS232, pressing CopyTrig can copy the current RS232 trigger settings (include the source channel, polarity, stop bit, even-odd check mode, data bits and baud rate) and apply them to the RS232 decoding function. Then, if needed, you can still set the RS232 decoding parameters according to the introductions below.
Chapter 8 Protocol Decoding RIGOL “Polarity Setting”. The setting methods of other parameters are as follows. Press Data Bits to set the data width of each frame. It can be set to 5, 6, 7, 8 or 9 and the default is 8. Press Stop Bit to set the stop bit after each frame of data. It can be set to 1 bit, 1.5 bit or 2 bit. Press Even-Odd to set the even-odd check mode of the data transmission. It can be set to None, Odd or Even. Press Packet to enable or disable the packet end.
RIGOL Chapter 8 Protocol Decoding Figure 8-4 RS232 Event Table At this point, “Table” is selected in the View menu automatically and the menu is grayed out. The event data is displayed in table format following the time order. If error occurs during the decoding, the corresponding error information is displayed. If a USB storage device is currently connected to the instrument, press Export to export the data table to the external USB storage device in CSV format. 8.
Chapter 8 Protocol Decoding RIGOL displayed. For example, when the transmitting terminal is set to none check and the decoder is set to odd check, the following check error occurs. (00000100，LSB) The check bit detected is 1 Wherein, there are odd number (1) of 1 in the 8-bit data 00000100 and the check bit should be 0; but the check bit detected on the TX is 1, thus check error occurs. After the decoder is set to none check, the decoding becomes normal.
RIGOL Chapter 8 Protocol Decoding I2C Decoding (Option) I2C serial bus consists of the clock line (SCLK) and the data line (SDA). SCLK: sample the SDA on the clock rising edge or falling edge. SDA: denote the data channel. SCLK SDA Figure 8-5 I2C Serial Bus Press Decode1 Decode to select “I2C” and open the I2C decoding function menu.
RIGOL Chapter 8 Protocol Decoding vertical position and scale, and is from (-5*vertical scale - vertical position) to (5*vertical scale - vertical position). If the data channel is set to any channel of D0-D15, SDAThreshold will be hidden automatically. 3. Display-related Setting Press Format to set the display format of the bus to Hex, Decimal, Binary or ASCII. Press Offset and use to adjust the vertical display position of the bus. Press BusStatus to turn the bus display on or off. 4.
RIGOL Chapter 8 Protocol Decoding Figure 8-7 I2C Event Table (Details) 5. Address Information during Decoding In I2C bus, the front part of each frame of data contains the address information and blue patches are used to represent address ID. In the ID, “Write” is used to represent writing address and “Read” is used to represent reading address. Press Include R/W. When “Open” is selected, “AddrBits” will include the “R/W” bit as a part of the address value.
RIGOL Chapter 8 Protocol Decoding 6. Error Expressions during Decoding When the ACK (ACKnowledge Character) is not met, the red error marks as shown in the figure below will be displayed. Note: The red mark is displayed in different modes according to the horizontal time base setting; when the horizontal time base is relatively smaller, displayed.
RIGOL Chapter 8 Protocol Decoding SPI Decoding (Option) SPI bus is based on the master-slave configuration and usually consists of chip select line (CS), clock line (SCLK) and data line (SDA). SCLK: sample the SDA on the clock rising edge or falling edge. SDA: denote the data channel.
Chapter 8 Protocol Decoding RIGOL (positive polarity) or (negative polarity). If the CS channel is set to CH1 or CH2, you can press Threshold to set the threshold of the clock channel. The range of the threshold is related to the vertical scale and vertical position and is from (-5*vertical scale - vertical position) to (5*vertical scale - vertical position). If the CS channel is set to any of D0-D15, Threshold will be hidden automatically. 2.
RIGOL Chapter 8 Protocol Decoding 6. Display-related Setting Press Format to set the display format of the bus to Hex, Decimal, Binary or ASCII. Press Offset and use to adjust the vertical display position of the bus. Press BusStatus to turn the bus display on or off. 7. Event Table The event table displays the decoded data, the corresponding line number, time and error information on the data line in table format. It can be used to observe relatively longer decoded data.
Chapter 8 Protocol Decoding RIGOL CAN Decoding (Option) You need to specify the CAN signal type and sample position for CAN decoding. The oscilloscope samples the CAN signal on the specified sample position. Press Decode1 Decode and select “CAN” to open the CAN decoding function menu.
RIGOL Chapter 8 Protocol Decoding CAN_H: the actual CAN_H bus signal. CAN_L: the actual CAN_L bus signal. Differential: the CAN differential bus signals connected to an analog channel using a differential probe. The positive lead of the probe connects the CAN_H bus signal and the negative lead connects the CAN_L bus signal. 3. Baud Press Baud to select a baud rate (100 kb/s, 125 kb/s, 250 kb/s, 400 kb/s, 500 kb/s (default), 800 kb/s, 1 Mb/s or User) that matches the CAN bus signal.
Chapter 8 Protocol Decoding RIGOL BusStatus is set to “ON”) to enter the event table interface. At this point, you can press View to display the event table in “Table” form (as shown in Figure 8-13) or “Details” form (as shown in Figure 8-14). If a USB storage device is currently connected to the instrument, press Export to export the data table to the external USB storage device in CSV format.
RIGOL 7. Chapter 8 Protocol Decoding Decoded CAN Data Interpretation Frame ID: displayed as hexadecimal number and expressed by blue patch. DLC (Data Length Code): displayed as hexadecimal number and expressed by chartreuse patch. Data: its display format depends on the format specified in Format (hex, decimal, binary or ASCII). It is expressed by green patch. If the data frame is lost, it will be expressed by red patch. CRC (Cyclic Redundancy Check): displayed as hexadecimal number.
Chapter 9 Reference Waveform RIGOL Chapter 9 Reference Waveform The contents of this chapter: To Enable REF Function To Set the Color To Select REF Source To Save REF Waveform To Adjust REF Waveform Display To Export to Internal or External Memory To Import from Internal or External Memory MSO2000A/DS2000A User’s Guide 9-1
RIGOL Chapter 9 Reference Waveform To Enable REF Function Press REF in the vertical control area (VERTICAL) at the front panel to enable the REF function. Note: When the time base is in X-Y mode, REF function cannot be enabled. MSO2000A/DS2000A provides 10 reference waveform channels. Press Channel, rotate to select the desired reference channel and press down or Channel to turn the selected channel on or off.
Chapter 9 Reference Waveform RIGOL To Save REF Waveform After the REF source is selected, press Save to save the waveform (screen region) in the specified source to internal memory as reference waveform and display it on the screen. Note: This operation only saves the reference waveform in the volatile memory and the waveform will be cleared at power-off. To Adjust REF Waveform Display You can adjust the vertical scale and vertical position of the reference waveform specified in Current.
RIGOL Chapter 9 Reference Waveform To Import from Internal or External Memory Users can also import the reference waveform stored in the internal memory or external USB storage device to the instrument. Press Import to enter the file recall interface. Please refer to the relative descriptions in “Store and Recall” to import the reference waveform to the instrument.
Chapter 10 Pass/Fail Test RIGOL Chapter 10 Pass/Fail Test During the product design and manufacture process, you usually need to monitor the change of the signal or judge whether the product is up to standard. The pass/fail test function of MSO2000A/DS2000A oscilloscope can fulfill this task perfectly.
RIGOL Chapter 10 Pass/Fail Test To Enable Pass/Fail Test Press Utility Pass/Fail Enable to select “ON”. The area covered by blue on the screen denotes the failure area and if the waveform measured at certain time point during the measurement process passes through the failure area, it will be treated as failed frame. Press Operate to select “ ” to start testing and select “■” to stop testing. Note: The pass/fail test function is not available in the following status.
RIGOL Chapter 10 Pass/Fail Test adjust the horizontal tolerance range and vertical tolerance range of the test mask. The horizontal and vertical adjustment ranges are 0.02 div to 4 div and 0.04 div to 5.12 div respectively. During the adjustment, two white curves would be displayed in the interface to show the outline of the current mask. Press Create to apply the mask currently created (the area not covered by blue within the screen), as shown in the figure below.
RIGOL Chapter 10 Pass/Fail Test To Set Test Results Output Type You can set the output type of the test results referring to the following methods. 1. The Statistic Message Press Message to select “ON” or “OFF”. When “ON” is selected, the statistic message of the test results (including the number of the failed frames, the passed frames and the total frames) will be displayed at the upper right corner of the screen, as shown in the figure below. 2. Stop on Fail Press StopOnFail to select “ON” or “OFF”.
Chapter 10 Pass/Fail Test RIGOL outputs a pulse from the [Trigger Out] connector at the rear panel when a failed waveform is detected. You can also press Utility AuxOutput and select “PassFail” to set this output. To Save the Test Mask Users can save the current test mask in “*.pf” format to the internal Flash memory or external USB storage device. The internal memory can store at most 10 test mask files (LocalPF.pf). Press Save to enter the file store interface.
Chapter 11 Waveform Record RIGOL Chapter 11 Waveform Record Waveform record can record the waveforms of the analog channels (CH1 and CH2) and the digital channels (D0-D15). In record constant on (open) mode, the oscilloscope can record the input waveform continuously until users press RUN/STOP. Waveform playback and analysis can provide better waveform analysis effect. Note: 1. The horizontal time base must be set to Y-T mode during waveform record. 2.
RIGOL Chapter 11 Waveform Record Waveform Record When the waveform record function is turned on, waveforms from all the channels currently turned on will be recorded. Press Utility Record Mode and use to select “Record” to open the waveform record operation menu. 1.
RIGOL Chapter 11 Waveform Record capacity of the waveform memory is fixed, the more the number of points each frame of waveform has, the less the number of waveform frames can be recorded. Thus, the maximum end frame of waveform record is decided by the memory depth currently selected. Please refer to the instruction in “Memory Depth” to select the desired memory depth. In addition, the maximum number of frames is also related to the on/off states of the digital channels.
RIGOL Chapter 11 Waveform Record Record Constant On MSO2000A/DS2000A provides record “Open” (record constant on) mode for waveform record. When this mode is enabled, the oscilloscope records the waveform continuously according to the current memory depth. The length of the waveform recorded is limited by the memory depth (sample rate and horizontal time base) and the waveform data recorded before will be overwritten by the waveform currently recorded.
RIGOL Chapter 11 Waveform Record Figure 11-1 Record Constant On 3. 4. Press RUN/STOP to stop the record. Analyze the waveform recorded using waveform analysis and as shown in the figure below, the runt pulses are captured.
RIGOL Chapter 11 Waveform Record Waveform Playback Waveform playback can play back the waveforms currently recorded. After recording the waveforms, press Utility Record Mode and use to select “Play back”. At this point, the information as shown in the figure below is displayed at the upper right corner of the screen, indicating the specific frame currently displayed on the screen. During the playback, this value would change continuously.
RIGOL Chapter 11 Waveform Record during the playback process. 5. End Frame Press this softkey and use to set the end frame of the playback. The default is the total number of frames of the waveform recorded. 6. Playback Operation Waveform playback can be realized through the menu or the shortcut buttons at the front panel. Menu Press Operate and select “ to start playing back. 7. Front Panel ” Press ; the backlight flashes, indicating that the playback is started.
RIGOL Chapter 11 Waveform Record Waveform Analysis This function is used to analyze the recorded waveform. Press Utility Record Mode and use to select “Analyze” to open the waveform analysis menu. At this point, the screen is divided into two display areas as shown in the figure below. Settings and Results Templet Display Current Frame Figure 11-3 Waveform Analysis Please refer to the following explanations to set the waveform analysis parameters. 1.
Chapter 11 Waveform Record 3. RIGOL Start Before performing the analysis, please set the templet by referring to “Analysis Based on Trace” or create the mask by referring to “Analysis Based on Pass/Fail Mask” according to the analysis mode currently selected. Then, press Start to enable waveform analysis. Note: During the analysis process, the progress bar is displayed and the parameters cannot be modified.
RIGOL Chapter 11 Waveform Record whose difference value is equal to or larger than the threshold selected as an error frame and the corresponding “CurFrame Diff” is 100%; otherwise, the frame is judged as correct and the “CurFrame Diff” is 0%. Note: There are only two “CurFrame Diff” values (100% and 0%) under the analysis based on pass/fail mask. 4. Cancel During the analysis, users can press Cancel to stop the analysis and press Start again to restart the analysis. 5.
Chapter 11 Waveform Record 9. RIGOL (refer to the setting method of the current frame mentioned above) and the default is the first frame. End Frame: press this key to set the end frame of waveform analysis (refer to the setting method of the current frame mentioned above) and the default is the last frame. Threshold: press this key to set the threshold of waveform analysis and the range is from 1% to 99%. The threshold is used to judge whether the frame is an error frame.
RIGOL Chapter 11 Waveform Record Analysis Based on Trace Press Analyze and select “Trace”. Then, set the templet used in analysis based on trace through the method below. 1. Trace Press Trace to select the creation method of analysis templet. Current Frame: select the current frame as the analysis templet. Average: select the average of the current data frame as the analysis templet. 2. Setup Template Press SetupTemplate to configure the templet immediately.
Chapter 11 Waveform Record RIGOL Analysis Based on Pass/Fail Mask Press Analyze and select “Pass/Fail”. Then, set the templet used in analysis based on Pass/Fail mask through the method below. Press Range to open the mask range setting menu. Please refer to the introduction in “Mask Range” to create the test mask used in waveform analysis. Besides, you can store the current test mask in “*.
Chapter 12 Display Control RIGOL Chapter 12 Display Control You can set the type, persistence time and brightness of waveform display as well as the grid type, grid brightness of the screen display and the menu display time.
RIGOL Chapter 12 Display Control To Select the Display Type Press Display Type to set the waveform display type to “Vectors” or “Dots”. Vectors: the sample points are connected by lines and displayed, as shown in the left figure below. Normally, this mode can provide the most vivid waveform to view the steep edge of the waveform (such as square waveform). Dots: display the sample points directly, as shown in the right figure below.
Chapter 12 Display Control RIGOL 2. Specific Values Enable to observe glitch that changes relatively slowly or glitch with low occurrence probability. The persistence time can be set to 50 ms, 100 ms, 200 ms, 500 ms, 1 s, 2 s, 5 s, 10 s or 20 s. 3. Infinite In this mode, the oscilloscope displays the waveform newly acquired without clearing the waveforms acquired formerly.
RIGOL Chapter 12 Display Control To Set the Waveform Intensity Press Display WaveIntensity or turn when the menu is hidden to adjust the waveform brightness of the analog channel. The default is 50% and the range available is from 0% to 100%. To Set the Screen Grid Press Display Grid to set the screen grid type. : turn the background grid and coordinate on. : turn the background grid off and coordinate on. : turn the background grid and coordinate off.
Chapter 13 Signal Source RIGOL Chapter 13 Signal Source MSO2000A/DS2000A combines the signal generator and oscilloscope in one instrument by providing a built-in dual-channel, 25MHz signal generator, thus providing convenience for engineers who need to use the signal generator and oscilloscope at the same time. This chapter introduces how to use the built-in signal generator. As the functions and setting methods of source 1 and source 2 are same, this chapter takes Source 1 for illustration.
RIGOL Chapter 13 Signal Source Parameter Setting Method The following two methods are available for setting the basic parameters (such as the frequency, amplitude, start phase and offset) of MSO2000A/DS2000A series oscilloscope. Method 1: Rotate or the inner knob of the navigation knob to adjust the parameter at a relatively smaller step or turn the outer knob of the navigation knob to adjust parameter at a relatively larger step.
Chapter 13 Signal Source RIGOL To Output Basic Waveform To Output Sine Press Setup1 to open the waveform setting menu. Press Wave and select “Sine”. At this point, you can set the sine parameters. 1. Source Press Source to turn on or off the signal output. 2. Set the frequency Press Freq to set the frequency of the signal. The range is from 100 mHz to 25 MHz. Note: For different waveforms, the frequency ranges are different.
RIGOL Chapter 13 Signal Source 5. Set the start phase Press Start to set the start phase of the signal. The range is from 0° to 360°. For the setting method, please refer to the introduction in “Parameter Setting Method”. 6. Align Phase Pressing Align will re-configure the two channels (Source 1 and Source 2) to output according to the preset frequency and phase. For two signals of which the frequencies are the same or are multiples, this operation can align their phase.
Chapter 13 Signal Source RIGOL To Output Ramp Press Setup1 to open the waveform setting menu. Press Wave and select “Ramp”. At this point, you can set the ramp parameters. For the detailed setting method, refer to the introduction in “To Output Sine”. This section only introduces “Symmetry”. Symmetry It is defined as the percentage that the rising period of the ramp takes up in the whole period.
RIGOL Chapter 13 Signal Source To Output Pulse Press Setup1 to open the waveform setting menu. Press Wave and select “Pulse”. At this point, you can set the pulse parameters. For the detailed setting method, refer to the introduction in “To Output Sine”. This section only introduces “DutyCycle”. Duty Cycle It is defined as the percentage that the high level takes up in the whole pulse period.
Chapter 13 Signal Source RIGOL To Output Noise Press Setup1 to open the waveform setting menu. Press Wave and select “Noise”. At this point, you can output noise signal with specified amplitude. 1. Set the amplitude Press Amp to set the amplitude of the signal. When the impedance is set to HighZ, the range is from 20 mVpp to 5 Vpp; when the impedance is set to 50 Ω, the range is from 10 mVpp to 2.5 Vpp. For the setting method, please refer to the introduction in “Parameter Setting Method”. 2.
RIGOL Chapter 13 Signal Source To Output Built-in Waveform MSO2000A/DS2000A series oscilloscope provides 7 kinds of built-in waveforms, including Sinc, ExpRise, ExpFall, ECG, Gauss, Lorentz and Haversine.
RIGOL Chapter 13 Signal Source Figure 13-4 ExpFall Function Waveform Figure 13-5 Analog ECG Figure 13-6 Gauss Function Waveform MSO2000A/DS2000A User’s Guide 13-9
RIGOL Chapter 13 Signal Source Figure 13-7 Lorentz Function Waveform Figure 13-8 Haversine Function Waveform Press Setup1 to open the waveform setting menu. Press Wave and select “Built-in”. At this point, you can set the output signal parameters according to the type of the built-in waveform selected. 1. Select built-in waveform Press Built-in to select any of the 7 built-in waveforms. 2. Set the frequency Press Freq to set the frequency of the signal. The range is from 100 mHz to 1 MHz.
Chapter 13 Signal Source RIGOL 3. Set the amplitude Press Amp to set the amplitude of the signal. When the impedance is set to HighZ, the range is from 20 mVpp to 5 Vpp; when the impedance is set to 50 Ω, the range is from 10 mVpp to 2.5 Vpp. For the setting method, please refer to the introduction in “Parameter Setting Method”. 4. Set the DC offset voltage Press Offset to set the DC offset of the signal. When the impedance is HighZ, the range is from (-2.5 V + the current amplitude/2) to (2.
RIGOL 8. Chapter 13 Signal Source Set the impedance Press Impedance to set the output impedance of the signal generator. It can be set to “HighZ” or “50Ω”. To Output Arbitrary Waveform MSO2000A/DS2000A allows users to define their own arbitrary waveform and save it in the internal or external memory. At most 10 arbitrary waveforms (LocalArb0.arb to LocalArb9.arb) can be stored in the internal memory. The user-defined waveform can contain 1 to 16384 data points (namely 1 pts to 16 kpts). 1.
Chapter 13 Signal Source RIGOL For the setting method, please refer to the introduction in “Parameter Setting Method”. 5. Align Phase Pressing Align will re-configure the two channels (Source 1 and Source 2) to output according to the preset frequency and phase. For two signals of which the frequencies are the same or are multiples, this operation can align their phase. Acquire the waveforms of the two channels using the oscilloscope and display the waveforms stably.
RIGOL Chapter 13 Signal Source To Select Waveform Press Select to open the waveform selection menu. 1. 2. To Select Stored Waveform Press Stored to enter the file recall interface. Users can select the arbitrary waveform stored in the internal or external memory to recall. Use to select the desired waveform and press Load. To Select Channel Waveform Press Channel Source to select the desired source (CH1, CH2 or MATH). Press Channel Range to select “Screen” or “Cursor”.
Chapter 13 Signal Source RIGOL introduction in “Parameter Setting Method”. 2. Interpolation Press Interp to turn on or off the interpolation mode between the points of the waveform. ON: the waveform editor connects two points using a straight line. OFF: the waveform editor will keep a constant voltage level between the two points and create a ladder-like waveform. 3. Zoom Press Zoom to turn on or off the zoom function. ON: the waveform editing window only displays the current point.
RIGOL Chapter 13 Signal Source 6. Time Press Time to set the duration of the current point. This setting is limited by the times of the previous point and following point. The time of point 1 is fixed at 0 s. For the setting method, please refer to the introduction in “Parameter Setting Method”. 7. Insert Press Insert to insert a new waveform point between the current point and the next point. 8. Delete Press Delete to delete the current point from the waveform and connect the remaining points.
Chapter 13 Signal Source RIGOL ON: the waveform editor connects two points using a straight line. OFF: the waveform editor will keep a constant voltage level between the two points and create a ladder-like waveform. 2. Zoom Press Zoom to turn on or off the zoom function. ON: the waveform editing window only displays the current point. OFF: the waveform editing window displays all the initial points. 3. Current Point Press Current to select the point to be edited.
RIGOL 9. Chapter 13 Signal Source Save Press Save to enter the file store interface. Please refer to the introduction in “Store and Recall” to save the current waveform file in “.arb” format in the internal memory (you can overwrite the original file or save the current waveform again). You can select the arbitrary waveforms in the internal or external memory for output. For the details, refer to the introduction in “To Select Waveform”.
RIGOL Chapter 13 Signal Source Modulation The built-in signal generator of MSO2000A/DS2000A series oscilloscope supports amplitude modulation (AM) and frequency modulation (FM). The modulated waveform consists of the carrier waveform and modulating waveform. The carrier waveform is the waveform output from the signal generator and the modulating signal can be the built-in sine, square, ramp waveform or noise signal. Press Modulation to open the modulation setting menu.
RIGOL Chapter 13 Signal Source 1. Select the Carrier Waveform Press Setup1 to enter the waveform setting interface. Press Wave to select the desired carrier. Note: When “Pulse”, “DC” or “Noise” is selected, the modulation menu will be hidden automatically. 2. Set the Carrier Parameters After selecting the desired carrier, you can refer to the introduction in “Parameter Setting Method” to set the carrier parameters (frequency, amplitude, etc). 3.
RIGOL Chapter 13 Signal Source FM FM (Frequency Modulation), namely the frequency of the carrier waveform changes with that of the modulating waveform, as shown in the figure below. Modulating Waveform Carrier Waveform Modulated Waveform Figure 13-10 Frequency Modulation 1. Select the Carrier Waveform Press Setup1 to enter the waveform setting interface. Press Wave to select the desired carrier. Note: When “Pulse”, “DC” or “Noise” is selected, the modulation menu will be hidden automatically. 2.
RIGOL Chapter 13 Signal Source 1 Hz to 50 kHz. 5. Set the Modulation Deviation Press Deviation to set the deviation of the frequency of the modulating waveform relative to the carrier frequency. The range is from 0 Hz to the current carrier frequency and the sum of the frequency deviation and carrier frequency cannot be greater than the sum of the current carrier frequency upper limit and 1 kHz. For the setting method, please refer to the introduction in “Parameter Setting Method”.
Chapter 14 Store and Recall RIGOL Chapter 14 Store and Recall Users can save the current settings, waveforms, screen image and parameters of the oscilloscope in internal memory or external USB mass storage device (such as USB storage device) in various file formats and recall the stored settings or waveforms when needed.
RIGOL Chapter 14 Store and Recall Storage System Press Storage to enter the store and recall setting interface. This oscilloscope provides a USB Host interface at the front panel to connect USB storage device for external storage. The USB storage device connected is marked as “Disk D”. The internal memory (Local Disk) of the instrument can store 10 setting files, 10 reference waveform files and 10 mask files of the Pass/Fail test.
Chapter 14 Store and Recall RIGOL Storage Type Press Storage Storage to select the desired storage type. The storage and recall descriptions of each type are as follows. If no USB storage device is connected to the instrument currently, only “Setups” is available. 1. Traces Save the waveform data in external memory in “*.trc” format. The data of all the channels turned on can be saved in the same file. At recall, the data will be displayed on the screen directly. 2.
RIGOL Chapter 14 Store and Recall Tip After a USB storage device is connected, press at the front panel to quickly save the current screen image under the root directory of the USB storage device. 5. CSV Save the waveform data displayed on the screen or of the specified channels in external memory in a single “*.csv” file. You can specify the file name and the saving directory and save the corresponding parameter file (*.txt) under the same directory using the same file name.
RIGOL Chapter 14 Store and Recall Internal Storage and Recall Internal storage and recall support “Setups” in Storage. In the following part, the storage and recall method and procedures are introduced. 1. Save the specified oscilloscope setting in internal memory. 1) Connect the signal to the oscilloscope and obtain stable display. 2) Press Storage Storage to select “Setups” and press Save to turn on the disk management interface.
RIGOL 2. Chapter 14 Store and Recall Load the specified type of file in internal memory. 1) Press Storage Storage to select “Setups” and then press Load to turn on the disk management interface. Use to select “Local Disk” and then press down to open the local disk, as shown in Figure 14-3. 2) Use to select the desired file to load and press Load to load the file selected.
Chapter 14 Store and Recall RIGOL External Storage and Recall Before using external storage and recall, make sure that the USB storage device is connected correctly. External storage supports all the types of files in Storage but in recall, “Picture” and “CSV” are not supported. 1. Save the specified type of file in the external USB storage device (take CSV as an example). 1) Connect the signal to the oscilloscope and obtain stable display.
RIGOL Chapter 14 Store and Recall Figure 14-5 External Disk (To Create a New File) 5) Press OK to execute the saving operation. 2. Load the specified type of file in the external USB storage device (take trace storage as an example). 1) Press Storage Storage to select “Traces” and then press Load to turn on the disk management interface. Use to select “Disk D” and press down to open the USB storage device, as shown in Figure 14-6.
Chapter 14 Store and Recall RIGOL Disk Management Press Storage Disk.Manage to turn on the disk management interface as shown in Figure 14-1 and use to select the desired disk. The disk currently selected is displayed in green and press down to open the disk selected.
RIGOL Chapter 14 Store and Recall To Create a New File or Folder This operation is only valid in external storage. Before using external disk, make sure that the USB storage device is connected correctly. First, press Storage Disk.Manage and use to select and open the external disk (“Disk D”). Then, select the desired directory under which to create a new file or folder. The default is the root directory of the USB storage device.
RIGOL Chapter 14 Store and Recall English Input Method For example, create a file or folder with the name “Filename”. 1. Press Keyboard. 1) Use to select English input method “En” and uppercase input state “aA”. 2) Use to input the letter “F”. If the input is wrong, press Delete to delete the character input. 3) Use to select lowercase input state “Aa”. 4) Use to input the remaining letters “ilename”.
RIGOL Chapter 14 Store and Recall Chinese Input Method For example, create a file or folder with the name “文件名”. 1. Press Keyboard. 1) Use to select Chinese input method “中”. Note: Chinese is added in the menu items at the right of the screen. 2) Use to input the pinyin “wen”. If the input is wrong, press Delete to delete the pinyin input. After “wen” is input, a series of Chinese characters appear in the “Chinese Chraracter Selecting Area”. 3) Press Chinese and use to select and input “文”.
Chapter 14 Store and Recall RIGOL To Delete a File or Folder Folder operation is valid only in external storage. Before using the external disk, make sure that the USB storage device is connected correctly. 1. Delete a file in internal memory. 1) Press Storage Disk.Manage and use to select and open the local disk (“Local Disk”). 2) Press File Type to select the desired type of file to be deleted (Note: The file types of internal storage include “*.stp”, “*.ref”, “*.pf” and “*.arb”; wherein, “*.
RIGOL Chapter 14 Store and Recall To Rename a File or Folder Rename operation is valid only in external storage. Before using the external disk, make sure that the USB storage device is connected correctly. Press Storage Disk.Manage and use to select and open the external disk (“Disk D”). Use to select the desired file or folder to rename and then press Rename to turn on the rename interface. For specific operations, please refer to the descriptions in “To Create a New File or Folder”.
RIGOL Chapter 14 Store and Recall Factory Press Storage Default to return the oscilloscope to its factory state (refer to the table below).
RIGOL Chapter 14 Store and Recall Input Impedance 1 MΩ Channel Invert OFF Amplitude Scale Coarse Channel Unit V Acquisition Setting (Acquire) Acquisition Mode Normal Sampling Mode Real Time Memory Depth Auto Anti-Aliasing OFF Trigger Setting (TRIGGER) Trigger Level 0 Trigger Type Edge Source CH1 Slope Rising Edge Trigger Mode Auto Trigger Coupling DC Trigger Holdoff 100 ns Noise Reject OFF Display Setting (Display) Display Type Vectors Persistence Time Min Waveform Inte
RIGOL Chapter 14 Store and Recall Frequency 1.00 kHz Amplitude 5.00 V Offset 0.00 V Start Phase 0.0° Modulation OFF Impedance HighZ Cursor Setting (Cursor) Mode OFF Manual Display Mode X-Y Source CH1 Screen Region Main Time Unit s Vertical Unit Source Unit Horizontal Positions of X Cursors CursorA -4.000 μs CursorB 4.000 μs Vertical Positions of Y Cursors CursorA 0.000 V CursorB -4.
RIGOL Chapter 14 Store and Recall Enable Test OFF Source CH1 Operate OFF Mask Range Screen X Mask 0.24 div Y Mask 0.
RIGOL Chapter 14 Store and Recall Math Operation Setting (MATH->Operate) Operate OFF A+B Source A CH1 Source B CH1 Invert OFF Vertical Scale 2V A-B Source A CH1 Source B CH1 Invert OFF Vertical Scale 2V A×B Source A CH1 Source B CH1 Vertical Invert OFF Scale 2U A÷B Source A CH1 Source B CH1 Invert OFF Vertical Scale 2U FFT Source CH1 Window Function Rectangle Display Split Scale dB Vertical Scale 20 dBV Horizontal Scale 1.
RIGOL Chapter 14 Store and Recall Vertical Scale 1U Threshold A 0V Threshold B 0V Advanced Operation Expression OFF Expression CH1+CH2 Vertical Scale 2V Invert OFF Logic Analyzer (LA)[2] Channel/Group D0 On/Off D7-D0: OFF; D15-D8: OFF Waveform Size M Reorder D0-D15 Threshold Type TTL Digital Bus BUS1 BUS Status OFF Channel Selection D7-D0 Endian Normal Reference Clock None Slope Rising Edge Display Type Data Format Hex Jitter Rejection ON Jitter Time 5.
RIGOL Chapter 14 Store and Recall Current Bit 0 Channel D0 RS232 TX CH1 RX None Polarity Normal Endian LSB Baud 9600 bps Data Bits 8 Stop Bit 1 bit Even-Odd Check None Packet OFF Packet End 00 (NULL) I2C SCLK CH1 SDA CH2 Include R/W Close SPI Decode Mode TimeOut TimeOut 1.00 μs SCLK Channel CH1 SCLK Slope Rising Edge SDA Channel CH2 SDA Polarity 1 for high level Data Bits 8 Endian MSB CAN Source CH1 Signal Type Rx Baud 500 kb/s Sample Point 50.
RIGOL Color Chapter 14 Store and Recall Gray Note [1] : Only applicable to MSO2000A-S and DS2000A-S models digital oscilloscopes. Note [2] : Only applicable to MSO2000A and MSO2000A-S models digital oscilloscopes.
Chapter 15 System Function Setting RIGOL Chapter 15 System Function Setting The contents of this chapter: Remote Interface Configuration System-related MSO2000A/DS2000A User’s Guide 15-1
RIGOL Chapter 15 System Function Setting Remote Interface Configuration MSO2000A/DS2000A can communicate with PC via LAN, USB or GPIB (with the USB-GPIB interface converter provided by RIGOL) bus. Please refer to the introduction below to configure the corresponding interface before using the remote interfaces. LAN Setting Press Utility IO Setting LAN Set to turn on the LAN setting interface. You can view the network connection status and configure the network parameters.
Chapter 15 System Function Setting RIGOL IP Configuration Type The configuration type of the IP address can be DHCP, auto IP or static IP. In different IP configuration type, the configuration mode of the network parameters (such as the IP address) is different. DHCP Press Config Mode and use to select “DHCP”. Then press down to select this type. When DHPC type is valid, the DHCP server in the current network will assign the network parameters (such as the IP address) for the oscilloscope.
RIGOL 1. Chapter 15 System Function Setting Set the IP Address The format of IP address is nnn.nnn.nnn.nnn; wherein, the range of the first nnn is from 1 to 223 (except 127) and the ranges of the other three nnn are from 0 to 255. You are recommended to ask your network administrator for an IP address available. Press IP Address and use to input the desired IP address.
Chapter 15 System Function Setting RIGOL Set the Domain Name Server You can set this paramter in Auto IP and Static IP mode. The address format of the domain name server is nnn.nnn.nnn.nnn; wherein, the range of the first nnn is from 1 to 223 (except 127) and the ranges of the other three nnn are from 0 to 255. You are recommended to ask your network administrator for an address available. press DNS and use to input the desired address.
RIGOL Chapter 15 System Function Setting MAC Address For each oscilloscope, the MAC address is unique. When attributing IP address for the oscilloscope, the MAC address is usually used to identify the instrument. VISA Address Display the VISA address currently used by the oscilloscope.
Chapter 15 System Function Setting RIGOL USB Device This oscilloscope can communicate with PC or PictBridge printer via the USB Device interface at the rear panel. You need to set the oscilloscope to make it match with different device types. Press Utility IO Setting USB Device and use device type. to select the desired Computer: in this type, the oscilloscope can communicate with the PC. PictBridge: in this type, the oscilloscope can communicate with the PictBridge printer.
RIGOL Chapter 15 System Function Setting System-related Sound When the sound is enabled, you can hear the sound of the beeper when you press a key or a menu softkey at the front panel or when the prompt message pops up. Press Utility Sound to select (on) or (off). The default is off. When the sound is turned on, will be displayed at the lower right corner of the screen.
Chapter 15 System Function Setting RIGOL System Information Press Utility System System Info to view the system information. The system information contains manufacturer, model, serial number, software version and hardware version. Power-off Recall You can set the system configuration to be recalled when the oscilloscope is powered on again after power-off. Press Utility System Power On to select “Last” or “Default”. Last: return to the setting of the system at last power-off.
RIGOL Chapter 15 System Function Setting System Time The system time is displayed at the lower right corner of the screen in “hh:mm (hour:minute)” format. When printing or storing a waveform, the file output will contain this time information. Press Utility System System Time System Time to turn on the setting interface as follows. Figure 15-2 System Time Setting Interface In the figure, the item in green (such as 2013) is the item that can be modified currently.
Chapter 15 System Function Setting RIGOL Screen When the oscilloscope enters the idle state and holds for a certain period of time, the screen saver program will be enabled. Press Utility System Screen to open the screen saver setting menu. “Default” means using the icon RIGOL as the screen saver icon. Press Time to select the screen saver time. When “OFF” is selected, the screen saver program is disabled.
RIGOL Chapter 15 System Function Setting Self-calibration The self-calibration program can quickly make the oscilloscope reach the best working state to get the most precise measurement values. You can perform self-calibration at any time especially when the change of the environment temperature is up to or more than 5 ℃. Make sure that the oscilloscope has been warmed up or operated for more than 30 minutes before the self-calibration.
RIGOL Chapter 15 System Function Setting Print Setting PictBridge is a new print standard. If your oscilloscope and the printer both comply with the PictBridge standard, you can connect the oscilloscope to the printer using a USB cable to print the screen image directly. Devices complies with the PictBridge standard always have the icon as shown in the figure on the right side. MSO2000A/DS2000A digital oscilloscope supports PictBridge printer.
RIGOL Chapter 15 System Function Setting 5. Print Range Press this key to set the print range to “Screen” or “Wave” and the default is “Screen”. Screen: print the whole screen image. Wave: only print the waveform area. 6. Palette Press this key to set the print color to “Gray Scale” or “Color” and the default is “Color”. 7. Paper Size Press this key to open the size list and rotate the multifunction knob to select the desired paper size.
Chapter 15 System Function Setting RIGOL 11. Copies Press this key to set the number of copies to be printed. Rotate the multifunction knob to select the desired number of copies. The range is from 1 to 999. 12. Invert Press this key to set the print color invert to “ON” or “OFF” and the default is “OFF”. Power Status Connect the oscilloscope to AC power using a power cord and at this point, the oscilloscope is energized.
RIGOL Chapter 15 System Function Setting Aux Output Users can set the type of the signal output from the [Trigger Out] connector at the rear panel. Press Utility AuxOutput to select the desired output type. TrigOut After this type is selected, the oscilloscope outputs a signal that can reflect the current capture rate of the oscilloscope at each trigger. Connect this signal to a waveform display device, measure the signal frequency and the measurement result equals the current acquisition rate.
Chapter 15 System Function Setting RIGOL Option Management This oscilloscope provides multiple options to fulfill your measurement requirements. To use the option functions, please order the corresponding options according to the order numbers provided in “Appendix A: Accessories and Options” in this manual. You can view the options currently installed on the oscilloscope and activate the newly bought option. 1.
RIGOL 1) Chapter 15 System Function Setting Press Editor to open the option license input interface as shown in the figure below. Option License Input Area Character Selecting Area 2) Input the option license. Turn to select the specified character and press the knob to input the character in the “Option License Input Area”. By default, the characters input are displayed in the area from left to right. Note: The hyphens are not included in the option license.
Chapter 15 System Function Setting RIGOL Note: A USB storage device can only store a single option license file of the same instrument; but can store the option license files of multiple different instruments. During the option installation process, do not power off the instrument or pull out the USB storage device. Auto Setting You can set the channel coupling mode after performing AUTO operation (press AUTO to enable the waveform auto setting function).
Chapter 16 Remote Control RIGOL Chapter 16 Remote Control MSO2000A/DS2000A oscilloscope can be controlled remotely mainly through the following two methods. User-defined programming Users can program and control the oscilloscope by using the SCPI (Standard Commands for Programmable Instruments) commands. For more information about the commands and programming, refer to the MSO2000A/DS2000A Programming Guide.
RIGOL Chapter 16 Remote Control Remote Control via USB 1. Connect the device Connect the oscilloscope (USB DEVICE) with your PC using a USB cable. 2. Install the USB driver This oscilloscope is a USB-TMC device.
RIGOL Chapter 16 Remote Control 3 4 5 6 MSO2000A/DS2000A User’s Guide 16-3
RIGOL Chapter 16 Remote Control 7 3. Search for device resource Start up Ultra Sigma and the software will automatically search for the instrument resources currently connected to the PC via the USB interface. You can also click 4. 16-4 to search the resources.
Chapter 16 Remote Control RIGOL be displayed. For example, MSO2302A (USB0::0x1AB1::0x04B0::DS2A0000000000::INSTR). 5. Control the instrument remotely Right click the resource name “MSO2302A (USB0::0x1AB1::0x04B0::DS2A0000000000::INSTR)” to select “SCPI Panel Control” to turn on the remote command control panel through which you can send commands and read data.
RIGOL Chapter 16 Remote Control Remote Control via LAN 1. Connect the device Connect the oscilloscope to your LAN using a network cable. 2. Configure network parameters Configure the network parameters of the oscilloscope according to the description in “LAN Setting”. 3. Search for device resource Start the Ultra Sigma, click and the panel as shown below is displayed.
Chapter 16 Remote Control 6. RIGOL Load LXI webpage As this oscilloscope conforms to LXI-C standards, you can load LXI webpage through Ultra Sigma (right click the resource name and select “LXI-Web”). Various important information about the oscilloscope (including the model number, manufacturer, serial number, description, MAC address and IP address) will be displayed on the webpage.
RIGOL Chapter 16 Remote Control Remote Control via GPIB 1. Connect the device Use the USB to GPIB interface converter to extend a GPIB interface for the oscilloscope. Then connect the oscilloscope to your PC using a GPIB cable. 2. Install the driver of GPIB card Install the driver of the GPIB card which has been connected to the PC correctly. 3. Set the GPIB address Set the GPIB address of the oscilloscope according to the description in “GPIB Address”. 4.
Chapter 16 Remote Control RIGOL Click to check whether the GPIB communication works normally; if not, please follow the corresponding prompt messages to solve the problem. 5. View device resource The resources found will appear under the “RIGOL Online Resource” directory. For example, MSO2302A (GPIB0::1::INSTR). 6.
Chapter 17 Troubleshooting RIGOL Chapter 17 Troubleshooting The commonly encountered failures and their solutions are listed below. When you encounter those problems, please solve them following the corresponding steps. If the problem remains still, please contact RIGOL and provide your device information (Utility System System Info). 1. The screen is still dark after pressing the power key: (1) Check whether the power switch is really on. (2) Check whether the power is correctly connected.
RIGOL Chapter 17 Troubleshooting (4) Change the trigger coupling type: if edge trigger is currently selected, press MENU (in the trigger control area (TRIGGER) at the front panel) Setting Coupling to select “HF Reject” or “LF Reject” to filter out the high-frequency or low-frequency noise that disturbs the trigger. (5) Change the trigger holdoff setting. 5.
Chapter 16 Remote Control 9. RIGOL The USB storage device cannot be recognized: (1) Check whether the USB storage device can work normally. (2) Make sure that the USB storage device being used is flash storage type. This oscilloscope does not support hardware storage type. (3) Make sure whether the capacity of the USB storage device is too large. It is recommended that the capacity of the USB storage device being used with this oscilloscope is no larger than 8 GBytes.
Chapter 18 Specifications RIGOL Chapter 18 Specifications All the specifications are guaranteed except the parameters marked with “Typical” and the oscilloscope needs to operate for more than 30 minutes under the specified operation temperature.
RIGOL Chapter 18 Specifications Input Number of Channels MSO2XX2A/2XX2A-S: 2 analog channels+16 digital channels DS2XX2A/2XX2A-S: 2 analog channels Input Coupling DC, AC or GND Input Impedance Analog channe: (1 MΩ±1%) || (16 pF±3 pF) or 50 Ω±1.5% Digital channel: (101 kΩ±1%)||(9 pF±1 pF) Probe Attenuation Coefficient Analog channe: 0.
RIGOL Chapter 18 Specifications Vertical Bandwidth (-3 dB) (50 Ω) MSO/DS2302A/2302A-S: DC MSO/DS2202A/2202A-S: DC MSO/DS2102A/2102A-S: DC MSO/DS2072A/2072A-S: DC to to to to 300 MHz 200 MHz 100 MHz 70 MHz Single-shot Bandwidth (50 Ω) MSO/DS2302A/2302A-S: DC MSO/DS2202A/2202A-S: DC MSO/DS2102A/2102A-S: DC MSO/DS2072A/2072A-S: DC to to to to 300 MHz 200 MHz 100 MHz 70 MHz Vertical Resolution Analog channe: 8 bit Digital channel: 1 bit Vertical Scale When the input impedance is 50Ω: 500 μV/div to
RIGOL Chapter 18 Specifications Vertical (Digital Channel) (MSO2000A and MSO2000A-S) Threshold Adjustable threshold of 8 channels per group Threshold Selection TTL (1.4 V) 5.0 V CMOS (+2.5 V) 3.3 V CMOS (+1.65 V) 2.5 V CMOS (+1.25 V) 1.8 V CMOS (+0.9 V) ECL (-1.3 V) PECL (+3.7 V) LVDS (+1.2 V) 0V User Def Threshold Range ±20.
RIGOL Chapter 18 Specifications Trigger Trigger Level Range Internal ± 5 div from center of the screen EXT ±4V Trigger Mode Auto, Normal, Single Holdoff Range 100 ns to 10 s High Frequency Rejection[1] 75 kHz Low Frequency Rejection[1] 75 kHz Trigger Sensitivity 1 div (below 10 mV or noise rejection is enabled) 0.
RIGOL Chapter 18 Specifications interval) Negative Slope (greater than, lower than, within specific interval) Time Setting 10 ns to 1 s Video Trigger (HDTV Option) Signal Standard NTSC, PAL/SECAM, 480P, 576P (Standard) 720P, 1080P and 1080I (Option) Pattern Trigger Pattern Setting H, L, X, Rising, Falling Delay Trigger (Option) Edge Type Rising, Falling Delay Type >, <, <>, >< Delay Time 2 ns to 4 s TimeOut Trigger (Option) Edge Type Rising, Falling, Rising/Falling Timeout time 16 ns to 4 s
Chapter 18 Specifications Byte Length RIGOL 1 to 5 SPI Trigger Trigger Condition Timeout Timeout Value 100 ns to 1 s Data Bits 4 bit to 32 bit Data Line Setting H, L, X CAN Trigger (Option) Signal Type Rx, Tx, CAN_H, CAN_L, Differential Trigger Condition SOF, EOF, FrameType, FrameError Signal Rate 10 kbps, 20 kbps, 33.3 kbps, 50 kbps, 62.5 kbps, 83.
RIGOL Chapter 18 Specifications Measure Cursor Manual Mode Track Mode Auto Mode Auto Measurement Voltage Deviation between Cursors (△V) Time Deviation between Cursors (△T) Reciprocal of △T (Hz) (1/△T) Voltage and Time Values of the Waveform Point Allow to display cursors during auto measurement Analog channel: Maximum, Minimum, Peak-Peak Value, Top Value, Bottom Value, Amplitude, Average, Vrms-N, Vrms-1, Overshoot, Pre-shoot, Area, Period Area, Period, Frequency, Rise Time, Fall Time, Positive Pulse Wi
Chapter 18 Specifications RIGOL Math Operation Waveform Operation A+B, A-B, A×B, A÷B, FFT, Digital Filter, Editable Advanced Operation, Logic Operation FFT Window Function Rectangle, Hanning, Blackman, Hamming FFT Display Split, Full Screen FFT Vertical Scale Vrms, dB Logic Operation AND, OR, NOT, XOR Math Function Intg, Diff, Log, Exp, Sqrt, Sine, Cosine, Tangent Number of Buses for Decoding 2 Decoding Type Parallel (standard), RS232/UART (option), I2C (option), SPI (option), CAN (option)
RIGOL Chapter 18 Specifications Signal Source (MSO2000A-S/DS2000A-S) Channels 2 Sample Rate 200 MSa/s Vertical Resolution 14 bits Max. Frequency 25 MHz Standard Waveform Sine, Square, Pulse, Ramp, Noise, DC Built-in Waveform Sinc, Exponential Rise, Exponential Fall, ECG, Gauss, Lorentz, Haversine Sine Frequency Range 100 mHz to 25 MHz Flatness ±0.
RIGOL Chapter 18 Specifications Symmetry 0 to 100% Noise Bandwidth 25 MHz (typical) Built-in Waveform Frequency Range 100 mHz to 1 MHz Arbitrary Waveform Frequency Range 100 mHz to 10 MHz Waveform Length 1 to 16 k points Internal Storage Location 10 Accuracy 100 ppm (lower than 10 kHz) 50 ppm (higher than 10 kHz) Resolution 100 mHz or 4 bits, the larger of the two Output Range 20 mVpp to 5 Vpp, HighZ 10 mVpp to 2.
RIGOL Chapter 18 Specifications General Specifications Probe Compensation Output Output Voltage[1] Frequency [1] About 3 V, peak-peak 1 kHz Power Power Voltage 100 V to 240 V, 45 Hz to 440 Hz Power Maximum 50 W Fuse 2 A, T Degree, 250 V Environment Temperature Range Operating: 0℃ to +50℃ Non-operating: -40℃ to +70℃ Cooling Method Humidity Range Fan cooling 0℃ to +30℃: ≤95％ Relative Humidity +30℃ to +40℃: ≤75％ Relative Humidity +40℃ to +50℃: ≤45％ Relative Humidity Altitude Operating: under 3,
RIGOL Chapter 19 Appendix Chapter 19 Appendix Appendix A: Accessories and Options Order Description Models Number DS2302A 300 MHz 2-analog channel oscilloscope DS2302A DS2202A 200 MHz 2-analog channel oscilloscope DS2202A DS2102A 100 MHz 2-analog channel oscilloscope DS2102A DS2072A 70M Hz 2-analog channel oscilloscope DS2072A DS2302A-S 300 MHz DS2202A-S 200 MHz DS2102A-S 100 MHz DS2072A-S 70 MHz MSO2302A 300 MHz MSO2202A 200 MHz MSO2102A 100 MHz MSO2072A 70 MHz 2-analo
RIGOL Chapter 19 Appendix channel mixed signal oscilloscope + 2-channel 25 MHz signal source 2-analog channel + 16-digital MSO2072A-S 70 MHz channel mixed signal oscilloscope + 2-channel 25 MHz signal MSO2072A-S source Power Cord conforming to the standard of the -- country Standard Accessories B-FF-150 2 Passive Probes (350 MHz) PVP2350 A logic analyzer probe (Only for MSO) RPL2316 Quick Guide -- Passive Probe (500 MHz) RP3500A Optional Rack Mount Kit RM-DS2000A Accessories USB-GPIB In
Chapter 19 Appendix RIGOL Appendix B: Warranty RIGOL warrants that its products mainframe and accessories will be free from defects in materials and workmanship within the warranty period. If a product is proven to be defective within the respective period, RIGOL guarantees the free replacement or repair of products which are approved defective. To get repair service, please contact with your nearest RIGOL sales or service office.
Index RIGOL Index - Duty ...................................... 6-18 - Width .................................... 6-18 + Duty..................................... 6-18 + Width ................................... 6-18 Acquisition Mode ........................ 4-2 Amplitude Modulation.............. 13-19 AND ........................................ 6-10 Antialiasing ................................ 4-9 Area ........................................ 6-22 Auto IP ....................................
RIGOL Noise rejection ........................... 5-7 Normal ...................................... 4-2 NOT ........................................ 6-10 Nth Edge Trigger ...................... 5-19 Operator .................................. 6-14 Option Management ................ 15-17 OR .......................................... 6-10 Overshoot ................................ 6-22 Parallel Decoding ........................ 8-2 Pass/Fail Test ........................... 10-1 Pattern Setting ............
Index Vmin ....................................... 6-21 Vpp ......................................... 6-21 Vrms-1 .................................... 6-22 Vrms-N .................................... 6-21 Vtop ........................................ 6-21 Waveform Analysis .................... 11-8 Waveform Confusion ................... 4-6 Waveform Distortion ................... 4-6 Waveform Invert......................... 2-5 Waveform Leakage ..................... 4-7 Waveform Playback ..................
