HP FET MULTIPLEXER E1351A/53A Example Scanning Using Trig Out Event In Ports, Output 70914OUTP on

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Example: Scanning

Using "Trig Out" and

"Event In" Ports

This example uses the mainframe "Trig Out" and "Event In" ports to synchronize the multiplexers to an HP 3457A Digital Multimeter. See the following figure for typical connections.

For this example, use the trigger output pulse of the mainframe’s "Trig Out" port to trigger the multimeter from its "External Trigger" port. Note that the pulse output from the multimeter’s "Voltmeter Complete" port triggers the switchbox to advance the channel list. Use the multimeter’s reading storage capability to store readings.

The sequence of operation is:

1.INIT (line 50) closes channel number 100.

2.The channel closure causes a trigger output from the "Trig Out" port.

3.The trigger causes the multimeter to make a measurement.

4.Measurement result is stored into multimeter memory.

5.Trigger is output from multimeter’s "Voltmeter Complete" port.

6.Trigger to "Event In" port advances the channel list to the next channel.

7.Steps 2-6 are repeated for channels 101 through 115.

10 OUTPUT 722;"TRIG EXT:DCV:MEM FIFO"

!Sets multimeter to external trigger to measure dc volts and store readings

20 OUTPUT 70914;"OUTP ON"

!Enables "Trig Out" port

30OUTPUT 70914;"TRIG:SOUR EXT" !Sets switchbox to receive external triggers

40OUTPUT 70914;"SCAN (@100:115)" !Selects the channel list (channels 100 to 115)

50	OUTPUT 70914;"INIT"	!Starts scanning cycle
60	END

Chapter 4

Understanding the HP E1351A/53A FET Multiplexer Modules 49

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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 According to ISO/IEC Guide 22 and EN July 20Page Business Reply Mail Page FET Multiplexer Module Description Using This ChapterMultimeter Connection Points Analog Bus ConnectorFET Multiplexer Module Block Diagram Output 70903OUTP on Switchbox and Scanning Voltmeter ConfigurationsDigital Bus and Triggering Initial Operation Programming LanguageConfiguring the HP E1351A/53A FET Multiplexer Modules Multiplexer Card Numbers Card Numbers for Single-Module SwitchboxesCard Numbers for Scanning Voltmeter Setting the Address SwitchSelecting the Interrupt Line Number Setting the Interrupt Line NumberCard ID Switch Setting the Card ID SwitchChannel FET Multiplexer Connector Pin-out Connecting User InputsSignal Conditioning Components/Current Shunts Adding Signal Conditioning Components/Current ShuntsWiring Guidelines Connecting Field WiringWiring a Terminal Module 10. Analog Bus and Digital Bus Connections Connecting Multimeters and Signal Generators11. Analog Bus and Digital Bus Cables Analog Bus and Digital Bus CablesPage Selecting Channels Using the HP E1351A/53A FET Multiplexer ModulesUsing the HP E1351A/53A FET Multiplexer Modules Chapter Matrix Commands Used in Chapter Multiplexer CommandsScanport None Connecting Switchbox Channels to Direct TerminalsCLOS? Closing Channels 02 and 09 for a Voltage Measurement Connecting Channels 02 and 10 for 4-Wire Ohms Measurement Example Making Voltage Measurements By Scanning Scanning a Range of Switchbox ChannelsScanning Channels 100 to 215 of a Two-Module Switchbox Example Making 4-Wire Ohms Measurements by Scanning Example Making 2-Wire Ohms Measurements by ScanningDownloading a Scan List Output 70904INIT Scanning a Switchbox without a Downloaded Scan ListOutput 70904STATOPERENAB Scanning a Switchbox with a Downloaded Scan ListConnecting the Analog Bus and Digital Bus Cables Scanning Voltmeter Configuration with HP E1326BTemperature Measurement Using a Thermocouple Using the HP E1351A/53A FET Multiplexer Modules Chapter Using Scanning Trigger Sources Commands for Scanning Switchbox ChannelsScanning with External Instruments Scanning Commands Trigger Sources Example Scanning With External Instruments Output 70914OUTP on Example Scanning Using Trig Out Event In PortsOutput 722TRIG Extdcvmem Fifo SCANMODE, Scanport and TRIGgerSOURce Dbus Example Scan Complete Monitor Using the Scan Complete BitCommon Command Format Command TypesScpi Command Format ROUTeSCANMODE Volt Scpi Command Reference Subsystem Syntax ABORtExample Stopping a Scan with ABORt Parameters COUNtComments Example Query Number of Scanning CyclesDISPlay Example Select Module #2 in a Switchbox for MonitoringMONitorCARD Mode Example Enabling the Monitor ModeCONTinuous INITiateExample Query Continuous Scanning State Example Enabling Continuous ScansSTATe OUTPut∙ Downloaded Scans The OUTPut subsystem does not work with Example Enabling Trig Out Port∙ Closing Channels To close ROUTeExample Closing Multiplexer Channels ∙ Query is Software Readback The ROUTeCLOSe? commandExample Query Multiplexer Channel Closure ∙ Opening Channels To openExample ∙ Query is Software Readback The ROUTeOPEN? commandOpening Multiplexer Channels Query Multiplexer Channel Open State∙ Scanning Operation With a valid channel list Example Scanning Using External InstrumentsExample Query Scan Mode Example Query Scan Port Example Selecting the Abus PortExample Set and Query the SETTling Time Example Setting 16 μsec SETTling TimeExample Enable the Status Register Bit OPERationENABleSTATus CDEScription? SYSTem∙ 16-Channel FET Multiplexer Module Description Example Reading the Description of Card #1 ModuleExample Reading the Model Number of a Card #1 Module Comments ∙ 16-Channel FET Multiplexer Module Model NumberExample Advancing Scan using the TRIGger Command ∙ Executing the TRIGgerIMMediate Command a channel listTRIGger IMMediate∙ Trig Out Port Shared by Switchboxes See the OUTPut command ∙ Enabling the Trigger Source The TRIGgerSOURce commandScanning Using Bus Triggers Example Scanning Using External TriggersExample Query Trigger Source ANSI/IEEE Standard Ieee 488.2 Common CommandsScpi Commands Quick Reference Description Command Quick ReferencePage Connectors Used P1 Maximum Offset Voltage Number of Slots Maximum Voltage Screw Terminal Wire Size Watts/SlotInput Impedance Power Requirements Power Off High to LowHP E1351A/53A FET Multiplexer Specifications Appendix a Register Addressing About This AppendixHP E1351A/53A Register-Based Programming Appendix B A16 Address Space Inside Command Module Or Mainframe A16 Address Space Outside Command Module Or MainframeRegister Descriptions Device Type Register Register module Register Bit DescriptionsManufacturer ID Register Status/Control Register Enable IRQ ENContinuous Enable CNT EN Reset Pointer RST PTR Scan Channel Delay RegisterScan Control Register Direct Channel Configuration Register Scan Channel Configuration RegisterA Tree Isolation Switch Disable A-D Valid Channel VLD C1 C0Direct Control Register Executing CommandsROUTe 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 Table B-1. Multimeter Command and Parameter Opcodes Multimeter Command Parameter OpcodesFigure B-3. Configuring the Multimeter Error Code Cause Multimeter Register-Based Programming Error CodesHP E1351A/53A FET Multiplexer Error Messages HP E1351A/53A FET Multiplexer Error Messages Appendix C Laddr IndexHP 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