Tektronix vx4380 *TRG

IEEE-488.2 Common Commands

3–58 VX4380 256-Crosspoint Relay Matrix Module User Manual

*TRG

Trigger Command. This command is equivalent to a VXI Trigger command.

This command is valid only after the following commands have been received

by the Option 01:

Command Description

[ROUTe:]SCAN

<channel_list>

Define a scan list

TRIGger

[:SEQuence]

:SOURce BUS

Select a VXI Trigger command as a trigger source.

INITiate[:IMMediate] Initiate the scan list. This command places the trigger

subsystem in the “ARM” state. The trigger subsystem remains

in this state until the Option 01 has sequenced through the

entire scan list “n” times, where “n” has been previously

specified in a TRIGger[:SEQuence]:COUNT command. The

trigger subsystem then returns to the IDLE state. The trigger

subsystem also returns to the IDLE state if an ABORt

command is received by the Option 01.

After these commands have been issued, a *TRG command will cause the

Option 01 to take the following actions:

Generate a trigger delay that has previously been specified in a TRIGger

[:SEQuence]:DELay command.

Open the currently closed channel.

Generate the open delay that has previously been specified in a

[ROUTe:]OPEN:DWELl command.

Close the next channel in the scan list.

Generate the close delay that has previously been specified in a

[ROUTe:]CLOSe:DWELl.

Pulse one or more VXI TTL trigger signals that have been enabled by a

previously issued OUTPut:TTLTRG<n>[:STATe] ON command.

If the module containing the channel is a scanner module, pulse the

appropriate front panel encode signal.

If another *TRG command is received before this sequence is complete, a SCPI

–211,“Trigger ignored” error message will be placed in the Error/Event queue.

The *TRG command will continue to have this effect until the trigger subsystem

is placed in the IDLE state. If additional *TRG commands are recieved after the

Contents

Main Page WARRANTY Page Table of Contents Getting Started Operating Basics Syntax and Commands Status and Events Page General Safety Summary Injury Precautions Product Damage Precautions Safety Terms and Symbols Certifications and Compliances Page Page Preface Conventions Page Page Page Getting Started Product Description Page Getting Started = Figure 11: VX4380 Functional Block Diagram VX4380 256-Crosspoint Relay Matrix Module User Manual 13 = Fuses Accessories Controls and Indicators Switches LEDs BITE (Built-in Test Equipment) Page Configuration Logical Address Switches IEEE-488 Address VMEbus Interrupt Level Select Switch Installation Tools Required Requirements and Cautions Installation Procedure Installation Checklist Functional Check Self Test Operational Check SYSFAIL* Operation Page Page Page Operating Basics Functional Overview Power-on Instrument I/O: VXIbus Basics Configuration Registers Page Page Page Command Syntax Page Syntax Example SCPI/IEEE 488.2 Command Elements Page Page Page Page Page Page Functional Command Groups System Commands Module Commands Functional Command Groups 312 VX4380 256-Crosspoint Relay Matrix Module User Manual Table 31: Summary of VX4380-Specific SCPI Commands Table 32: Summary of IEEE-488.2 Common Commands Functional Command Groups VX4380 256-Crosspoint Relay Matrix Module User Manual 313 Table 32: Summary of IEEE-488.2 Common Commands (Cont.) Page Command Descriptions ABORt Page CLOSe Page Page Page ID? INITiate Page Page MODule Page Page Page OPEN Page Page Page Page OUTPut PFAil SCAN Page Page Command Descriptions 340 VX4380 256-Crosspoint Relay Matrix Module User Manual STATus Page Page Page SYSTem Page Page Page TRIGger Page Page Page IEEE-488.2 Common Commands *CLS *ESE <NRf> *ESE? *ESR? *IDN? *OPC *OPC? *RST *SRE <mask> *SRE? *STB? *TRG *TST? *WAI Page Page Page Status and Events Status and Event Reporting System Status Byte Register Service Request Enable Standard Event Status Event Status Enable The Output Queue The System Error and Event Queue Status and Events VX4380 256-Crosspoint Relay Matrix Module User Manual 45 Status and Event Reporting Process Messages Page Page Page Page VX4380 256-Crosspoint Relay Matrix Module User Manual A1 Appendix A: Specifications Table A1: VXI Instrument Characteristics A2 VX4380 256-Crosspoint Relay Matrix Module User Manual Table A1: VXI Instrument Characteristics Table A2: Environmental/Reliability Characteristics Table A3: VX4380-Specific Characteristics VX4380 256-Crosspoint Relay Matrix Module User Manual A3 Table A3: VX4380-Specific Characteristics (Cont.) Table A4: Relay Switching Characteristics A4 VX4380 256-Crosspoint Relay Matrix Module User Manual Table A5: Switching Channel Characteristics Table A6: Signal Path Table A7: Cabling Table A7: Power Distribution Page Page Appendix B: Input/Output Connections VX4380 256-Crosspoint Relay Matrix Module User Manual B3 Table B1: VX4380 Upper Connector (J401) Pinout Appendix B: Input/Output Connections B4 VX4380 256-Crosspoint Relay Matrix Module User Manual Table B2: VX4380 Lower Connector (J1201) Pinout Page Page Appendix C: Examples Example 1 Page Page Example 2 Appendix D: User Service Performance Verification Preventive Maintenance Troubleshooting Page Appendix E: Replaceable Parts Parts Ordering Information Module Servicing Using the Replaceable Parts List Abbreviations Mfr. Code to Manufacturer Cross Index VX4380 256-Crosspoint Relay Matrix Module User Manual E3 Manufacturers Cross Index Mfr. Code Manufacturer Address City, State, Zip Code E4 VX4380 256-Crosspoint Relay Matrix Module User Manual Replaceable Parts List Effective Serial No. Part Number Serial No. Fig. & Index Number Tektronix VX4380 256-Crosspoint Relay Matrix Module User Manual E5 Figure E1: VX4380 Exploded View Page Page Page Glossary Page Page Page Page Page Page Page VX4380 256-Crosspoint Relay Matrix Module User Manual Index1 Index A C D E T W