HP FET MULTIPLEXER E1351A/53A manual Output 722TRIG Extdcvmem Fifo

Page 50

Example: Scanning

Using Stand-Alone

Multimeter and Digital

Bus Triggering

This example is similar to the previous one except that the multimeter’s "External Trigger" and "Voltmeter Complete" ports are connected to the "Channel Closed" and "Channel Advance" on the FET Multiplexer digital bus. See Chapter 1 for information on making custom digital bus cables. Once the scanning procedure has been initiated (INIT), the channel closure is advanced by the handshake lines. The INIT command closes the first channel, and when the channel is closed, the "Channel Closed" pulses. This is connected to the "External Trigger" on the multimeter, which triggers a reading. When the reading is complete, the "Voltmeter Complete" triggers, which pulses the "Channel Advance". This procedure continues until the end of the scan list.

The sequence of operation is:

1.TRIG:SOUR DBUS selects digital bus triggering.

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

3.The channel closure causes a trigger output from the "Channel Closed" port.

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

5.Measurement result is stored into multimeter memory.

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

7.Trigger to "Advance Channel" port advances the channel list to the next channel.

8.Steps 3-7 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

20OUTPUT 70914;"SCAN:PORT ABUS"!Routes channels to analog bus connector and A tree terminal

30OUTPUT 70914;"TRIG:SOUR DBUS"!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

50 Understanding the HP E1351A/53A FET Multiplexer Modules

Chapter 4

Image 50

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