Contents HP E1368A/69A/70A Modules User’s Manual Warranty . . . . . . . . . . WARNINGS . . . . . . . . Safety Symbols . . . . . . Declaration of Conformity . Reader Comment Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Example: Transfer Switch Using Two 3-Port Switches Example: Transfer Switch Using One 5-Port Switch . Example: 4 x 1 Multiplexer . . . . . . . . . . . . . . . Scanning Channels . . . . . . . . . . . . . . . . . . . . . . Example: Scanning Channels . . . . . . . . . . . . . . Example: Using the Scan Complete Bit . . . . . . . . Recalling and Saving States . . . . . . . . . . . . . . . . . Storing States . . . . . . . . . . . . . . . . . . . . . . Recalling States . . . . . . . . . . . . . . . . . . . . .
SYSTem . . . . . . . . . . . . . :CDEScription? . . . . . . . :CPON . . . . . . . . . . . :CTYPe? . . . . . . . . . . :ERRor? . . . . . . . . . . . TRIGger . . . . . . . . . . . . . [:IMMediate] . . . . . . . . :SOURce . . . . . . . . . . :SOURce? . . . . . . . . . . IEEE 488.2 Common Commands Command Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Notes 4 HP E1368A/69A/70A Modules User’s Manual Contents
Certification Hewlett-Packard Company certifies that this product met its published specifications at the time of shipment from the factory. HewlettPackard further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology (formerly National Bureau of Standards), to the extent allowed by that organization’s calibration facility, and to the calibration facilities of other International Standards Organization members.
Documentation History All Editions and Updates of this manual and their creation date are listed below. The first Edition of the manual is Edition 1. The Edition number increments by 1 whenever the manual is revised. Updates, which are issued between Editions, contain replacement pages to correct or add additional information to the current Edition of the manual. Whenever a new Edition is created, it will contain all of the Update information for the previous Edition.
Declaration of Conformity according to ISO/IEC Guide 22 and EN 45014 Manufacturer’s Name: Hewlett-Packard Company Loveland Manufacturing Center Manufacturer’s Address: 815 14th Street S.W. Loveland, Colorado 80537 declares, that the product: Product Name: HP E1368A Microwave Switch, E1369A Microwave Switch Driver, E1370A Microwave Switch/Attenuator Model Number: E1368A, E1369A, E1370A Product Options: All conforms to the following Product Specifications: Safety: IEC 1010-1 (1990) Incl.
Notes 8 HP E1368A, E1369A, E1370A Microwave Switch and Driver Modules User’s Manual
Please fold and tape for mailing Reader Comment Sheet HP E1368A, E1369A, E1370A Microwave Switch and Driver Modules User’s Manual Edition 3 You can help us improve our manuals by sharing your comments and suggestions. In appreciation of your time, we will enter you in a quarterly drawing for a Hewlett-Packard Palmtop Personal Computer (U.S. government employees cannot participate in the drawing).
HP E1368A, E1369A, E1370A Microwave Switch and Driver Modules User’s Manual
Chapter 1 Getting Started with the HP E1368A/69A/70A Using This Chapter This chapter describes the Microwave Switch modules, and contains information on how to program them using SCPI (Standard Commands for Programmable Instruments) commands. This chapter contains the following: • • • • Microwave Switch Description . . . . . . . . . . . . . . . . . . . . . . . Instrument Definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Programming the Microwave Switch . . . . . . . . . . . . . . .
Figure 1-1.
Power Supply Circuit Power to operate the coaxial switches can be supplied internally or externally, dependent on the type of coaxial switch used. • Internal voltages of either +5V or +12V can be selected using jumpers on the board. These voltages are routed through the module from the mainframe backplane. Note Check mainframe power availability before using internal voltages. • External voltages of up to 42Vpk can be connected using the EXTernal POWER terminal block. Caution MAXIMUM VOLTAGE.
Instrument Definition HP plug-in modules installed in an HP mainframe or used with an HP command module are treated as independent instruments each having a unique secondary HP-IB address. Each instrument is also assigned a dedicated error queue, input and output buffers, status registers and, if applicable, dedicated mainframe/command module memory space for readings or data.
The logical addresses noted in Figure 1-2 apply to modules installed in an HP 75000 Series B Mainframe (HP Model Number E1300/E1301) or in a mainframe with an HP E1405/E1406 Command Module. See the HP 75000 Series B Installation and Getting Started Guide or the appropriate HP Command Module Manual for more information on switchboxes and logical addressing. Figure 1-2. Card Numbers for Multiple-Module Switchboxes Channel Numbers The channel number identifies the channel within a module.
SCPI Command Format Used in This Manual You can send SCPI commands in either short or long form. Refer to Chapter 4 for more information. A long form example is: CLOSe (@102) The same command shown without the lower case letters is the short form. The command then becomes: CLOS (@102) Some commands in this manual are shown with brackets ([ ]). These are implied or optional commands that you do not have to execute.
Chapter 2 Configuring the HP E1368A/69A/70A Modules Using This Chapter This chapter shows how to connect external wiring to the Microwave Switch Modules connectors, and how to configure the module for operation. • • • • Setting the Address Switch . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting the Interrupt Priority . . . . . . . . . . . . . . . . . . . . . . . Installing Switches on the HP E1369A . . . . . . . . . . . . . . . . . Installing a Switch or Attenuator on the HP E1370A. . . . .
Setting the Address Switch The logical address switch (LADDR) factory setting is 120. You may have changed the setting during module installation. Valid address values are from 0 to 255. If the Microwave Switch modules are used in a HP E1300/E1301 Mainframe, refer to the HP 75000 Series B System Installation and Getting Started Guide for addressing information. Otherwise, use Figure 2-1 to change the setting.
Selecting the Interrupt Priority The Microwave Switch modules generate interrupts after a channel has been closed or opened. These interrupts are sent to, and acknowledgments are received from, the slot 0 module via the VXIbus backplane interrupt lines. For most applications where the Microwave Switch modules are installed in an HP 75000 Series B or Series C mainframe, these jumpers do not have to be moved.
Installing Switches on the HP E1369A Because the HP E1369A Microwave Switch modules do not have Microwave Switches installed by the factory, it is necessary to install or connect switches before operating. Determine the number of switches, and whether the switches are to be installed on, or connected to, the module and proceed as instructed below. Installing Switches on the Module Installation described for up to three coaxial switches (channels 00-02) is below.
After selecting the coaxial switch, install as follows: 1. Position the coaxial switch behind the channel 00 panel cut-out. Secure to rear panel using two M2.5 x .45 metric screws (P/N 0515-1373). 2. Route the 3-wire cable (P/N E1368-61601) from J1 to the coaxial switch terminals. Solder the "RED" wire to pin 1. Solder the "YEL" wire to pin C. Solder the "ORN" wire to pin 2. Note On the HP 33314 (8765) series switches, it is necessary to jumper the two C terminals so that both connect to the "YEL" wire.
Figure 2-3.
Connecting Switches External to the Module Caution Connection of up to five coaxial switches (channels 00-04) is described below. Figure 2-4 shows the wiring diagram for each switch connected. The maximum current that the control circuit can accommodate is 1 amp per switch. Maximum current also depends on the output capacity of the mainframe or power supply used. After selecting the coaxial switches, connect to the 14-pin connector as follows: 1.
Selecting Switch Power After the coaxial switches have been installed (refer to “ Installing Switches on the HP E1369A” earlier in this chapter), the correct operating voltage must be selected. See installed switch specifications. The Microwave Switch modules are capable of providing +5V (set at factory) or +12V using the mainframe power supply, or external voltages of up to 42Vpk can be connected. Determine the required operating voltage and proceed as instructed below. Refer to Figure 2-5 as required.
Figure 2-5. Selecting Switch Voltage Connecting Field Wiring Figure 2-6 shows the internal switch diagram for the various HP 3-port, 4-port, and 5-port coaxial switches. All switches are shown in the "OPEN" position. To minimize loss at high frequencies, use the following guidelines when making connections. Cabling Guidelines For frequencies to 18 GHz, use a good quality flexible type cable and SMA connectors. For frequencies 18 GHz, use semi-rigid type cable and APC 3.5 connectors. Figure 2-6.
Installing a Switch or Attenuator on the HP E1370A Microwave Switch/Attenuator Card Because the HP E1370A Microwave Switch/Attenuator modules do not have a Microwave Switch of Attenuator installed by the factory, it is necessary to install or connect a switch or attenuator before operating. Determine whether the switch or attenuator is to be installed on, or connected to, the module and proceed as instructed below.
After selecting the coaxial switch or attenuator, install as follows: 1. Position the coaxial switch or attenuator behind the panel cut-out. Use two M3.0 x 8mm (P/N 0515-0372) metric screws to secure the rear panel. Use two 4-40 x .25 inch screws (P/N 2200-0521) to secure the attenuator to the rear panel. 2. Route the ribbon cable from the Microwave Switch or Attenuator to the 14-pin connector on the PC board. 3. Install the correct filler panel on the switch so that minimal air can flow through the slot.
Connecting Field Wiring Figure 2-8 shows the internal switch diagram for the various HP single-pole, multi-throw switches. All switches are shown in the "OPEN" position. To minimize loss at high frequencies, use the following guidelines when making connections. • For frequencies up to 18 GHz, use a good quality flexible type cable and SMA connectors. • For frequencies >18 GHz, use semi-rigid type cable and APC 3.5 connectors. Figure 2-8.
Chapter 3 Using the HP E1368A/69A/70A Modules Using This Chapter This chapter uses typical examples to show how to use the Microwave Switch modules. This chapter contains the following sections: • • • • • • • • Microwave Switch Commands . . . . . . . . . . . . . . . . . . . . . . . Reset Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Switching Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scanning Channels . . . . . . . . . . . . . . . . . . . .
Reset Conditions When the Microwave Switch is switched on or *RST (reset), all channels are set to open (refer to Figure 2-6), and the current channel list for scanning is invalidated. Table 3-2 lists the parameters and default values for the functions described in Chapter 3. Table 3-2. *RST (Reset) Default Conditions and Values Parameter ARM:COUNt Default 1 Description Number of scanning cycles is one. TRIGger:SOURce IMM Will advance scanning cycles automatically.
Switching Channels For general purpose switch operation, you can connect or disconnect a signal by opening or closing a specific channel. • Use CLOS to close coaxial switch channel(s), and OPEN to open coaxial switch channel(s). Refer to Figure 2-6 for the various HP coaxial switch configurations. has the form (@ccnn) where cc = card number (01-99) and nn = channel number (00-04).
Example: Single Channel Switching using EXTernal POWER This example illustrates closing and opening coaxial switch channel 01 in a HP E1369A Microwave Switch Driver module. For the example, the type of switch installed in the HP E1369A is a HP 33311B (8762B), with 24Vdc drive requirements. Figure 3-2 shows how to connect an external power supply to the EXTernal POWER terminals to provide the necessary 24Vdc drive for the coaxial switch.
Example: Channel Switching using the E1370A and the 33366K Microwave Switch This example illustrates how to make connections to different ports on the HP E1370A Microwave Switch/Attenuator Driver and the HP 33366K Single-pole, Six-throw Microwave Switch. Figure 3-3 shows how the board and switch are configured. Figure 3-3. Example: HP E1370A Multiple Channel Switching To connect C to Port 1, execute: CLOS (@103) To connect C to Port 2, execute: OPEN (@103) Opens the connection to port 1.
Note: Because of the specific ribbon cable configurations, the channel number does not directly correspond to the same port number. Table 3-3 maps the port numbers to the corresponding channel numbers for all of the HP333XXK Microwave Switches. For example, to connect C to port 3 on the HP3365K Single-pole, Four-throw Switch, channel 2 would have to be closed. Table 3-3. Map of Channel Numbers to Port Numbers.
Example: Multiple Channel Switching using EXTernal POWER This example illustrates closing and opening coaxial switch channels 00 through 04 in a HP E1369A Microwave Switch Driver module. For the example, the switches are not installed on the HP E1369A card, and have 24Vdc drive requirements (HP 33311B or 8762B).
Example: Transfer Switch Using Two 3-Port Switches This example shows how to configure the HP E1368A Microwave Switch to either route a signal directly to the output, or route it through an external device before being output. For the example, two switches (channels 00 and 01) will be used. Figure 3-5 shows how to connect channels 00 and 01. To route the signal directly, execute: OPEN (@100,101) Connects port C to port 1 of both channels and routes the signal directly to the output.
Example: Transfer Switch Using One 5-Port Switch This example shows how to configure the HP E1369A Microwave Switch Driver with a 5-port switch (HP 33313 or 8764) installed, to either route a signal directly to the output, or route it through an external device before being output. For the example, one switch (channel 02) will be used. Figure 3-6 shows how to connect channel 02. To route the signal directly, execute: OPEN (@102) Connects port 3 to port 2 and routes the signal directly to the output.
Example: 4 x 1 Multiplexer This example shows how to configure the HP E1368A Microwave Switch to select one of four signals for output. For the example, all three switches (channels 00 through 02) will be used. Figure 3-6 shows how to connect channels 00 through 02. To route signal "A" to the output, execute: OPEN (@100,102) Connects signal "A" (channel 00 port 1) to the output (channel 02 port C).
Scanning Channels Scanning the Microwave Switch module channels consists of closing a set of channels (connecting the 2 port to the C port) one channel at a time. Single scan, multiple scans (2 to 32767), or continuous scanning modes are available. The TRIGger:SOURce command specifies the source to advance the scan. The OUTPut command can be used to enable the HP E1300/E1301 or HP E1405/E1406 "Trig Out" port. Figure 3-8 illustrates the scanning sequence.
Example: Scanning Channels This example uses the mainframe’s "Trig Out" port to synchronize Microwave Switch channel 00 to 02 closures to an external measurement device (e.g. Frequency Counter, Spectrum Analyzer). For measurement synchronization, the HP E1300A/E1301A "Trig Out" port is connected to the external instrument’s "EXT Trig In" port. Figure 3-9 shows how to connect the Microwave Switch module to the external instrument.
Figure 3-9. Example: Multiple Channel Scanning Example: Using the Scan Complete Bit You can use the Scan Complete Bit (bit 8) in the Operation Status Register of a switchbox to determine when a scanning cycle completes (no other bits in the register apply to the switchbox). Bit 8 has a decimal value of 256 and you can read it directly with the STAT:OPER? command (refer to the STATus:OPERation[:EVENt]? command in Chapter 4 for an example).
Execute: 10 OUTPUT 70915;"*CLS" 20 OUTPUT 70915;"STAT:OPER:ENAB 256"!Enable Scan Complete Bit to set bit 7 in Status Register. 30 OUTPUT 70915;"*SRE 128" 40 OUTPUT 70915;"TRIG:SOUR EXT" !Set to external trigger mode. 50 OUTPUT 70915;"SCAN (@100:103)" !Select channels to be scanned. 60 OUTPUT 70915;"INIT" 70 WHILE NOT BIT (SPOLL(70915),7) !Waiting for scan complete. 80 PRINT “DO OTHER OPERATION HERE”!Enter program lines for computer to do other operations.
Recalling and Saving States This section contains information about saving and recalling switch states. Storing States The *SAV command saves the current instrument state. The state number (0-9) is specified in the parameter.
For the example, use: • an HP-IB select code of 7, primary address of 09, and secondary address of 15 for the Microwave Switch • an HP Series 200/300 Computer with HP BASIC Execute: 10 20 30 35 40 50 60 70 80 90 95 100 110 120 130 140 145 150 160 170 180 190 200 210 220 230 240 250 255 !Call computer subprogram “Errmsg” if a Microwave !Switch programming error occurs. Enable the computer to respond !to an interrupt from the Microwave Switch.
350 OUTPUT 70915;"*CLS" 360 STOP 370 SUBEND Comments If you have an HP 75000 Series B mainframe with a front panel keyboard, errors can be monitored by selecting “ Monitor” from the Switch menu. If errors occur when the program executes, the “ err” annunciator will appear. Entering SYST:ERR? repeatedly from the keyboard reads all of the messages in the error queue. The HP 75000 Series B Mainframe User’s Manual contains detailed information on the Status and Standard Event Status Registers.
Querying the Microwave Switch This section summarizes the query commands you can use to determine the configuration or state of the Microwave Switch. All commands end with the question mark (?) which puts the data into the output buffer where you can retrieve it to your computer. See Chapter 4 for more information.
Chapter 4 HP E1368A/69A/70A Command Reference Using This Chapter This chapter describes Standard Commands for Programmable Instruments (SCPI) commands and summarizes IEEE 488.2 Common (*) Commands applicable to the Microwave Switch. See the HP 75000 Series B Mainframe HP E1300A/E1301A User’s Manual or the HP 75000 Series C HP E1406 User’s Manual for additional information on SCPI and common commands. This chapter contains the following sections: • • • • Command Types . . . . . . . . . . . . . . . . . . .
Command Separator A colon (:) always separates one command from the next lower level command as shown below: ROUTe:SCAN:MODE? Colons separate the root command from the second level command (ROUTe:SCAN) and the second level from the third level (SCAN:MODE?). Abbreviated Commands The command syntax shows most commands as a mixture of upper and lower case letters. The upper case letters indicate the abbreviated spelling for the command. For shorter program lines, send the abbreviated form.
Parameters Parameter Types. The following table contains explanations and examples of parameter types you might see later in this chapter. Parameter Type Numeric Explanations and Examples Accepts all commonly used decimal representations of numbers including optional signs, decimal points, and scientific notation. 123, 123E2, -123, -1.23E2, .123, 1.23E-2, 1.23000E-01. Special cases include MIN, MAX, and DEF.
SCPI Command Reference This section describes the Standard Commands for Programmable Instruments (SCPI) commands for the Microwave Switch modules. Commands are listed alphabetically by subsystem and also within each subsystem. ABORt The ABORt subsystem stops a scan in progress when the scan is enabled via the interface, and the trigger modes are TRIGger:SOURce BUS or TRIGger:SOURce HOLD.
ARM The ARM subsystem selects the number of scanning cycles (1 through 32767) for each INITiate command. ARM :COUNt MIN | MAX :COUNt? [MIN | MAX] :COUNt ARM:COUNt MIN | MAX allows scanning cycles to occur a multiple of times (1 to 32767) with one INITiate command when INITiate:CONTinuous OFF | 0 is set. MIN sets 1 cycle and MAX sets 32,767 cycles.
:COUNt? ARM:COUNt? [MIN | MAX] returns the current number of scanning cycles set by ARM:COUNt. The current number of scans cycles is returned when no MIN or MAX parameter is sent. With MIN or MAX passed as parameters, MIN returns 1 and MAX returns 32767.
DISPlay The DISPlay subsystem monitors the channel state of a selected module (or card) in a switchbox. This subsystem only operates with mainframes that have a display, such as the HP 75000 Series B Mainframe (HP Model Number E1301A). Subsystem Syntax :MONitor:CARD DISPlay :MONitor :CARD [:STATe] [:STATe]? DISPlay:MONitor:CARD selects the module in a switchbox to be monitored when the monitor mode is enabled.
:MONitor[:STATe] DISPlay:MONitor[:STATe] turns the monitor mode ON or OFF. Parameters Comments Parameter Name Parameter Type Range of Values Default Value mode boolean 0 | 1 | ON | OFF 0 | OFF • Monitoring Switchbox Channels: DISPlay:MONitor[:STATe] ON or DISPlay:MONitor[:STATe] 1 turns the monitor mode ON to show the channel state of the selected module. DISPlay:MONitor[:STATe] OFF or DISPlay:MONitor[:STATe] 0 turns the monitor mode OFF.
INITiate The INITiate subsystem selects continuous scanning cycles and starts the scanning cycle. Subsystem Syntax :CONTinuous INITiate :CONTinuous :CONTinuous? [:IMMediate] INITiate:CONTinuous enables or disables continuous scanning cycles for the switchbox.
:CONTinuous? Example INITiate:CONTinuous? queries the scanning state. With continuous scanning enabled, the command returns 1. With continuous scanning disabled, the command returns 0. Query Continuous Scanning State This example enables continuous scanning of a switchbox and queries the state. Since continuous scanning is enabled, query should return 1. [:IMMediate] Comments INIT:CONT ON Enables continuous scanning. INIT:CONT? Query continuous scanning state.
OUTPut The OUTPut subsystem enables or disables the "Trig Out" port of the HP E1300/E1301 Mainframe or on the HP Command Module. Subsystem Syntax [:STATe] OUTPut [:STATe] [:STATe]? OUTPut[:STATe] enables/disables the "Trig Out" port on the rear panel of the HP E1300A/E1301A Mainframe or on the HP Command Module. OUTPut[:STATe] ON | 1 enables the port and OUTPut[:STATe] OFF | 0 disables the port.
[ROUTe:] The ROUTe subsystem controls switching and scanning operations for the Microwave Switch modules in a switchbox. Subsystem Syntax CLOSe [ROUTe:] CLOSe CLOSe? OPEN OPEN? SCAN :MODE NONE | VOLT :MODE? [ROUTe:]CLOSe closes the Microwave Switch channels specified in the channel_list. The channel_list is in the form (@ccnn) where cc = card number (00-99) and nn = channel number (00-04).
CLOSe? Comments [ROUTe:]CLOSe? returns the current state of the channel(s) queried. The channel_list is in the form (@ccnn). The command returns 1 if the channel is closed or returns 0 if the channel is open. • Query is Software Readback: The [ROUTe:]CLOSe? command returns the current software state of the channel specified. It does not account for relay hardware failures. A maximum of 127 channels at a time can be queried for a multi-module switchbox.
OPEN? [ROUTe:]OPEN? returns the current state of the channel(s) queried. The channel_list is in the form (@ccnn). The command returns 1 if the channel is open or returns 0 if the channel is closed. Comments • Query is Software Readback: The [ROUTe:]OPEN? command returns the current software state of the channels specified. It does not account for relay hardware failures. A maximum of 127 channels at a time can be queried for a multi-module switchbox.
SCAN:MODE [ROUTe:]SCAN:MODE is accepted by the Microwave Switch. NONE, VOLT, and RES set the mode for "no measurements" while FRES is not supported and will generate an error. This command has no effect on Microwave Switch operation. SCAN:MODE? [ROUTe:]SCAN:MODE? returns the current scanning mode of the Microwave Switch. NONE, VOLT, or RES are placed in the output buffer as a result.
STATus The STATus subsystem reports the bit values of the Operation Status Register. Only bit 8 in the Standard Operation Status Register is used to notify that a scan is complete. Subsystem Syntax STATus :OPERation :ENABle :ENABle? [:EVENt]? The STATus system contains four registers, two of which are under IEEE 488.2 control. These are the Standard Event Status Register (*ESE) and the Status Byte Register (*STB?).
:OPERation:ENABle STATus:OPERation:ENABle enables the Standard Operation Status Register to set a bit in the Status Byte Register. For the Microwave Switch, when bit 8 in the Standard Operation Status Register is set to 1, bit 7 in the Status Byte Register is set to 1.
:OPERation[:EVENt]? STATus:OPERation[:EVENt]? queries the status of the Standard Operation Status Event Register. Comments • Output Format: Returns a decimal weighted value from 0 to 256 indicating which bits are set true. • Related Commands: [ROUTe:]SCAN Example Reading the Operation Status Event Register after a Scanning Cycle STAT:OPER? 64 HP E1368A/69A/70A Command Reference Returns the bit values of the Standard Operation Status Event Register.
SYSTem The SYSTem subsystem returns error numbers/messages in the error queue of a switchbox, and returns the types and descriptions of modules (cards) in a switchbox. Subsystem Syntax :CDEScription? SYSTem :CDEScription? :CPON :CTYPe? :ERRor? SYSTem:CDEScription? returns the description of a selected module (card) in a switchbox.
:CTYPe? SYSTem:CTYPe? returns the module (card) type of a selected module in a switchbox. Parameters Comments Parameter Name Parameter Type Range of Values Default Value number numeric 01 - 99 N/A Microwave Switch Module Model Number: The SYSTem:CTYPe? command returns (for both modules): HEWLETT-PACKARD,E1368A,0,A.01.00 Note: The 0 after the module number is the serial number of the module (always 0). A.01.00 is an example of the module revision code number.
TRIGger The TRIGger subsystem controls the triggering operation of the Microwave Switch modules in a switchbox. Subsystem Syntax TRIGger [:IMMediate] :SOURce BUS | EXTernal | HOLD | IMMediate :SOURce? [:IMMediate] TRIGger[:IMMediate] causes a trigger to occur when the defined trigger source is TRIGger:SOURce HOLD or TRIGger:SOURce BUS.
Comments • Enabling the Trigger Source: The TRIGger:SOURce command only selects the trigger source. The INITiate[:IMMediate] command enables the trigger source. • Using the TRIG Command: You can use TRIGger[:IMMediate] to advance the scan when TRIGger:SOURce BUS or TRIGger:SOURce HOLD is selected. • Using External Trigger Inputs: With TRIGger:SOURce EXTernal selected, only one switchbox at a time can use the external trigger input at the HP E1300/E1301 Mainframe’s "Event In" port.
Scanning Using Bus Triggers This example uses bus triggering (TRIG:SOUR BUS) to scan channels 00 through 02 of a single-module switchbox. The trigger source to advance the scan is the *TRG command (as set with TRIGger:SOURce BUS). When INIT is executed, the scan is started and channel 00 is closed. Then, each *TRG command advances the scan to the next channel. :SOURce? Example Chapter 4 TRIG:SOUR BUS Select interface (BUS) triggering. SCAN (@100:102) Scan channels 00 through 02.
IEEE 488.2 Common Commands The following table lists the IEEE 488.2 Common (*) Commands that can be executed by the Microwave Switch modules. The operation of some of these commands is described in Chapter 3 of this manual. For more information on Common Commands, refer to the HP 75000 Series B Mainframe User’s Manual (HP Model Number E1300/E1301), appropriate HP Command Module User’s Manual, or the ANSI/IEEE Standard 488.2-1987.
Command Quick Reference The following tables summarize SCPI and IEEE 488.2 Common (*) Commands for the Microwave Switch modules. SCPI Commands for Quick Reference Command Description ABORt Abort a scan in progress. :COUNt MIN | MAX :COUNt? [MIN | MAX] ARM DISPlay:MONitor:CARD | AUTO :MONitor[:STATe] :MONitor[:STATe]? Multiple scans per INIT command. Query number of scans. Selects module to be monitored. Selects monitor mode. Query the monitor mode state.
HP E1368A/69A/70A Command Reference Chapter 4
Appendix A HP E1368A/69A/70A Specifications HP E1368A Microwave Switch STANDARD VXIbus INFORMATION (Applies to both the HP E1368A Frequency Range: and E1369A unless otherwise noted) DC-18 GHz Characteristic Impedence: 50Ω Module Size/Device Type: B, register-based Insertion Loss: DC-2GHz: DC-18GHz: Connectors Used: P1 Isolation: DC-18GHz: <0.25dB <0.50dB MISCELLANEOUS: 1 2 >90dB VSWR (50Ω load): DC-2GHz: <1.15dB DC-12.4GHz: <1.25dB DC-18GHz: <1.40dB Maximum Input Power: 1 Watt average.
HP E1368A/69A/70A Specifications Appendix A
Appendix B HP E1368A/69A/70A Registers Register Definitions All three Microwave Switch modules are register-based devices. See the tables below for register definitions. Manufacturer ID Register b + 0016 15 14 13 12 11 10 9 8 7 6 Write Undefined Read** Manufacturer ID 5 4 3 2 1 0 *Returns FFFF16 = Hewlett-Packard A16 only register-based.
n Addressing the Registers To read or write to specific registers, you must use the register address. Register addresses for HP 75000 Series C plug-in modules are in address space VXI A16. The locatio of A16 within the mainframe/command module memory map depends on the mainframe/command module used. For example, the A16 location of the HP E1300/E1301 Mainframe starts at 1F000016 (16 = HEX). The A16 space is divided so modules are addressed only at locations beginning with C00016 within A16.
Status/Control Register Channel Enable Register Each coaxial switch requires about 30 msec execution time (close to open or open to close) during which time the switch is "busy". A read of the Status/Control Register (base + 0416) returns FFFF16 when the module is not busy or returns FF7F16 (bit 7 is low-true) when the module is busy. A read of the Channel Register (base + 0816) always returns FFFF16, regardless of the channel states.
HP E1368A/69A/70A Registers Appendix B
Appendix C HP E1368A/69A/70A Error Messages Table C-1 lists the error messages associated with the Microwave Switch module programmed by SCPI. See the appropriate mainframe manual for a complete list of error messages. Table C-1. Microwave Switch Error Messages No. Title Potential Cause(s) -211 Trigger ignored Trigger received when scan not enabled. Trigger received after scan complete. Trigger too fast. -213 INIT ignored Attempted to execute an INIT command when a scan is already in progress.
Index HP E1368A/69A/70A Modules User’s Manual C *CLS, 29, 70 *ESE, 29, 70 *ESE?, 70 *ESR?, 70 *IDN, 70 *OPC, 70 *OPC?, 70 *RCL, 43, 70 *RST, 29 - 30, 70 - 71 *SAV, 43, 70 *SRE, 29, 70 *SRE?, 70 *STB?, 41, 70 *TRG, 70 - 71 *TST?, 70 - 71 *WAI, 70 A Abbreviated Commands, 48 ABORt Subsystem, 50, 71 Address channels, 14 - 15, 31 logical, 15, 18 primary HP-IB, 40 - 41 register, 76 secondary HP-IB, 14, 40 - 41 switch, setting, 18 ARM Subsystem, 51 - 52, 71 ARM:COUNt, 30, 51, 71 ARM:COUNt?, 46, 52, 71 Attenuator
parameters, 49 query, 46 Quick Reference, 71 SCPI, 47 SCPI format, 16, 47 separator, 48 types, 47 Comment sheet, reader, 9 Common (*) Commands, 47 *CLS, 29, 70 *ESE, 29, 70 *ESE?, 70 *ESR?, 70 *IDN?, 70 *OPC, 70 *OPC?, 70 *RCL, 43, 70 *RST, 29 - 30, 70 - 71 *SAV, 43, 70 *SRE, 29, 70 *SRE?, 70 *STB?, 41, 70 *TRG, 70 - 71 *TST?, 70 - 71 *WAI, 70 format, 47 list of, 70 Quick Reference, 71 Conformity, declaration, 7 Connecting field wiring, 25, 28 ribbon cable to devices, 35 switches external to module, 23 swit
*ESR?, 70 Event In Port, 68 Examples channel switching with E1369A, 35 channel switching with E1370A, 33 checking for errors, 43 - 44 multiple channel switching, 35 multiplexer (4x1), 38 resetting the switchbox, 16 scan complete bit, 41 scanning channels, 40 single channel switching, 31 - 32 synchronizing instruments, 45 transfer switch, 36 - 37 External power supply, 13, 35 power terminals, 13, 32, 35 switches, 23 - 24 voltage, 13 F Field Wiring, connecting, 25, 28 Fuse, 24 removing, 13 G Getting Started
N Non-HP Switches, 20 Numeric Command Parameters, 49 O *OPC, 70 *OPC?, 70 OPEN, ([ROUTe:]OPEN), 14, 29, 59, 71 OPEN?, ([ROUTe:]OPEN?), 46, 60, 71 Opening channels, 31, 59 Operation Status Register, 41, 62 - 63 OPERation:ENABle, (STATus:OPERation:ENABle), 41, 63, 71 OPERation:ENABle?, (STATus:OPERation:ENABle?), 46, 63, 71 OPERation[:EVENt]?, (STATus:OPERation[:EVENt]?), 41, 46, 64, 71 Optional Command Parameters, 49 Optional Commands, 16, 48 OUTPut Subsystem, 57, 71 OUTPut[:STATe], 29 - 30, 57, 71 OUTPut[:
S Safety warnings, 6, 17 *SAV, 43, 70 Saving Switch States, 43 Scan Complete Bit, 41 SCAN, ([ROUTe:]SCAN), 29, 60, 71 SCAN:MODE, ([ROUTe:]SCAN:MODE), 30, 61, 71 SCAN:MODE?, ([ROUTe:]SCAN:MODE?), 46, 61, 71 SCAN:PORT, ([ROUTe:]SCAN:PORT), 30 Scanning channels, 39 - 40, 60 channels, example, 40 continuous cycles, 55 cycle, 56 cycles, 51 - 52 cycles, continuous, 55 modes, 39 query state, 56 trigger sources, 39, 67 - 69 using bus triggers, 69 using external triggers, 68 with external instruments, 40 SCPI Comman
transfer, 36 - 37 Switching channels, 31, 33, 35 channels with E1369A, 35 channels with E1370A, 33 multiple channels, 33, 35 single channels, 31 - 32 Synchronizing instruments, 45 switches, 45 SYSTem Subsystem, 65 - 66, 71 SYSTem:CDEScription?, 46, 65, 71 SYSTem:CPON, 65, 71 SYSTem:CTYPe?, 46, 66, 71 SYSTem:ERRor?, 46, 66, 71 W *WAI, 70 WARNINGS, 6, 17 Warranty, 5 Wire Size, 24 Wiring, 25, 28 Writing to the Registers, 77 T Transfer Switch example, 36 - 37 one channel, 37 two channel, 36 *TRG, 70 - 71 Trig