HP FET MULTIPLEXER E1351A/53A manual ∙ Enabling the Trigger Source The TRIGgerSOURce command

Page 74

:SOURce TRIGger:SOURce BUS DBUS EXTernal HOLD IMMediate specifies

the trigger source to advance the channel list during scanning.

Parameters

 

Parameter Name

Parameter Type

Range of Values

 

 

 

 

 

BUS

Discrete

*TRG command

 

 

 

 

 

DBUS

Discrete

Digital Bus

 

 

 

 

 

EXTernal

Discrete

Event In port

 

 

 

 

 

HOLD

Discrete

Hold Triggering

 

 

 

 

 

IMMediate

Discrete

Continuous Triggering

 

 

 

 

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 Digital Bus Trigger: TRIGger:SOURce DBUS selects the digital bus on the multiplexer as the trigger. Any open collector TTL trigger source can be wired to the "Channel Advance" lead. A negative-going pulse triggers the multiplexer and advances it to the next channel on the scanning list. After the SETTling:TIME delay, the multiplexer asserts "Channel Closed" on the digital bus.

Using External Trigger Inputs: With TRIGger:SOURce EXTernal selected, only one switchbox at a time can use the external trigger input at the HP E1300A/E1301A Mainframe’s "Event In" port. The trigger input is assigned to the first switchbox requesting the external trigger source.

Assigning External Trigger: A switchbox assigned with

TRIG:SOUR EXT remains assigned to that source until the switchbox receives a command to change the source. When the source is changed, the external trigger source is available to another switchbox (with a TRIGger:SOURce EXTernal command). Another switchbox cannot receive an external trigger source if the source is already assigned, or an error is generated.

Using Bus Triggers: To trigger the switchbox with

TRIGger:SOURce BUS selected, use TRIGger[:IMMediate], the IEEE 488.2 common command *TRG or the HP-IB Group Execute Trigger (GET).

"Trig Out" Port Shared by Switchboxes: See the OUTPut command.

Related Commands: ABORt, [ROUTe:]SCAN, SETTling[:TIME], TRIGger

*RST Condition: TRIGger:SOURce IMMediate

74 HP E1351A/53A 16-Channel FET Multiplexer Command Reference

Chapter 5

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Contents Contents Understanding the HP E1351A/53A FET Multiplexer Modules Appendix C.HP E1351A/53A FET Multiplexer Error Messages HP E1351A/53A FET Multiplexer User’s Manual Contents Certification Documentation History July 20 According to ISO/IEC Guide 22 and ENPage Business Reply Mail Page Using This Chapter FET Multiplexer Module DescriptionAnalog Bus Connector Multimeter Connection PointsFET Multiplexer Module Block Diagram Switchbox and Scanning Voltmeter Configurations Output 70903OUTP onDigital Bus and Triggering Programming Language Initial OperationConfiguring the HP E1351A/53A FET Multiplexer Modules Card Numbers for Single-Module Switchboxes Multiplexer Card NumbersSetting the Address Switch Card Numbers for Scanning VoltmeterSetting the Interrupt Line Number Selecting the Interrupt Line NumberSetting the Card ID Switch Card ID SwitchConnecting User Inputs Channel FET Multiplexer Connector Pin-outAdding Signal Conditioning Components/Current Shunts Signal Conditioning Components/Current ShuntsConnecting Field Wiring Wiring GuidelinesWiring a Terminal Module Connecting Multimeters and Signal Generators 10. Analog Bus and Digital Bus ConnectionsAnalog Bus and Digital Bus Cables 11. Analog Bus and Digital Bus CablesPage Using the HP E1351A/53A FET Multiplexer Modules Selecting ChannelsUsing the HP E1351A/53A FET Multiplexer Modules Chapter Multiplexer Commands Matrix Commands Used in ChapterConnecting Switchbox Channels to Direct Terminals Scanport NoneCLOS? Closing Channels 02 and 09 for a Voltage Measurement Connecting Channels 02 and 10 for 4-Wire Ohms Measurement Scanning a Range of Switchbox Channels Example Making Voltage Measurements By ScanningScanning Channels 100 to 215 of a Two-Module Switchbox Example Making 2-Wire Ohms Measurements by Scanning Example Making 4-Wire Ohms Measurements by ScanningDownloading a Scan List Scanning a Switchbox without a Downloaded Scan List Output 70904INITScanning a Switchbox with a Downloaded Scan List Output 70904STATOPERENABScanning Voltmeter Configuration with HP E1326B Connecting the Analog Bus and Digital Bus CablesTemperature Measurement Using a Thermocouple Using the HP E1351A/53A FET Multiplexer Modules Chapter Scanning with External Instruments Commands for Scanning Switchbox ChannelsUsing Scanning Trigger Sources Scanning Commands Trigger Sources Example Scanning With External Instruments Example Scanning Using Trig Out Event In Ports Output 70914OUTP onOutput 722TRIG Extdcvmem Fifo SCANMODE, Scanport and TRIGgerSOURce Dbus Using the Scan Complete Bit Example Scan Complete MonitorScpi Command Format Command TypesCommon Command Format ROUTeSCANMODE Volt Scpi Command Reference Example Stopping a Scan with ABORt ABORtSubsystem Syntax Comments COUNtParameters Example Query Number of Scanning CyclesMONitorCARD Example Select Module #2 in a Switchbox for MonitoringDISPlay Example Enabling the Monitor Mode ModeINITiate CONTinuousExample Enabling Continuous Scans Example Query Continuous Scanning State∙ Downloaded Scans The OUTPut subsystem does not work with OUTPutSTATe Example Enabling Trig Out PortROUTe ∙ Closing Channels To closeExample Query Multiplexer Channel Closure ∙ Query is Software Readback The ROUTeCLOSe? commandExample Closing Multiplexer Channels ∙ Opening Channels To openOpening Multiplexer Channels ∙ Query is Software Readback The ROUTeOPEN? commandExample Query Multiplexer Channel Open StateExample Scanning Using External Instruments ∙ Scanning Operation With a valid channel listExample Query Scan Mode Example Selecting the Abus Port Example Query Scan PortExample Setting 16 μsec SETTling Time Example Set and Query the SETTling TimeSTATus OPERationENABleExample Enable the Status Register Bit ∙ 16-Channel FET Multiplexer Module Description SYSTemCDEScription? Example Reading the Description of Card #1 ModuleComments ∙ 16-Channel FET Multiplexer Module Model Number Example Reading the Model Number of a Card #1 ModuleTRIGger ∙ Executing the TRIGgerIMMediate Command a channel listExample Advancing Scan using the TRIGger Command IMMediate∙ Enabling the Trigger Source The TRIGgerSOURce command ∙ Trig Out Port Shared by Switchboxes See the OUTPut commandExample Query Trigger Source Example Scanning Using External TriggersScanning Using Bus Triggers Ieee 488.2 Common Commands ANSI/IEEE StandardCommand Quick Reference Scpi Commands Quick Reference DescriptionPage Input Impedance Power Requirements Maximum Voltage Screw Terminal Wire Size Watts/SlotConnectors Used P1 Maximum Offset Voltage Number of Slots Power Off High to LowHP E1351A/53A FET Multiplexer Specifications Appendix a About This Appendix Register AddressingHP E1351A/53A Register-Based Programming Appendix B A16 Address Space Outside Command Module Or Mainframe A16 Address Space Inside Command Module Or MainframeRegister Descriptions Device Type Register Manufacturer ID Register Register Bit DescriptionsRegister module Enable IRQ EN Status/Control RegisterScan Control Register Scan Channel Delay RegisterContinuous Enable CNT EN Reset Pointer RST PTR A Tree Isolation Switch Disable A-D Valid Channel VLD Scan Channel Configuration RegisterDirect Channel Configuration Register C1 C0Executing Commands Direct Control RegisterROUTe ROUTeCLOSe channellist is equivalent to the following HP E1351A/53A Register-Based Programming Appendix B Register-Based Programming for Maximum Speed Decimal code Appendix B HP E1351A/53A Register-Based Programming Multimeter Command Parameter Opcodes Table B-1. Multimeter Command and Parameter OpcodesFigure B-3. Configuring the Multimeter Multimeter Register-Based Programming Error Codes Error Code CauseHP E1351A/53A FET Multiplexer Error Messages HP E1351A/53A FET Multiplexer Error Messages Appendix C Index LaddrHP E1351A/53A FET Multiplexer User’s Manual Index HP-IB HP E1351A/53A FET Multiplexer User’s Manual Index HP E1351A/53A FET Multiplexer User’s Manual Index HP E1351A/53A FET Multiplexer User’s Manual Index HP E1351A/53A FET Multiplexer User’s Manual Index