HP FET MULTIPLEXER E1351A/53A manual Multimeter Connection Points, Analog Bus Connector

Page 12

For high-speed operation (100 K switches/sec.) the scanning list is automatically downloaded into RAM on the multiplexer module. Triggering for channel advance is from the two handshake lines on the digital bus. The scanning operation does not require any intervention from the mainframe CPU. This only applies for switchboxes or scanning voltmeter configurations that have all FET multiplexer modules. For a downloaded scan list in switchboxes, the trigger source must be TRIG:SOUR DBUS or TRIG:SOUR IMM.

Multimeter Connection Points

Analog Bus Connector

There are three places where signals on a closed channel can be measured: analog bus connector, tree terminals and direct terminals. Each of these provides a different capability for configuring the module.

The analog bus connector provides a direct connection between multiple multiplexer modules and also between a multiplexer module and HP E1326/E1411 Multimeters. A ribbon cable is used to daisy-chain multiple multiplexer modules together, and to connect a multimeter to the multiplexer modules for a scanning voltmeter. The SCAN:PORT ABUS command automatically closes the appropriate tree isolation switches to route closed channels to the analog bus. This command must be executed in a switchbox configuration. A scanning voltmeter automatically configures the multiplexer for the analog bus connector.

Tree Terminals Tree terminals provide an external connection point through the terminal modules for the signals which are on the analog bus lines. Tree terminals are the recommended connection points for connecting stand-alone multimeters and external current sources for 4-wire resistance measurements.

Direct Terminals The 16 channels are separated into two banks, Bank 0 and Bank 1. When a channel is closed, that channel is connected to a Bank Common. Channels 00 to 07 are on Bank 0 Common and channels 08 to 15 are on Bank 1 Common. The terminal module has connection points for the direct terminals, where you can measure signals on the respective Bank Commons. The banks can be isolated from each other, from the analog bus connector, and from the tree terminals with the A and B tree isolation switches.

12 Getting Started with the HP E1351A/53A

Chapter 1

Image 12

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 Commands for Scanning Switchbox Channels Using Scanning Trigger SourcesScanning with External Instruments 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 MonitorCommand Types Common Command FormatScpi Command Format ROUTeSCANMODE Volt Scpi Command Reference ABORt Subsystem SyntaxExample Stopping a Scan with ABORt COUNt ParametersComments Example Query Number of Scanning CyclesExample Select Module #2 in a Switchbox for Monitoring DISPlayMONitorCARD Example Enabling the Monitor Mode ModeINITiate CONTinuousExample Enabling Continuous Scans Example Query Continuous Scanning StateOUTPut STATe∙ Downloaded Scans The OUTPut subsystem does not work with Example Enabling Trig Out PortROUTe ∙ Closing Channels To close∙ Query is Software Readback The ROUTeCLOSe? command Example Closing Multiplexer ChannelsExample Query Multiplexer Channel Closure ∙ Opening Channels To open∙ Query is Software Readback The ROUTeOPEN? command ExampleOpening Multiplexer Channels 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 TimeOPERationENABle Example Enable the Status Register BitSTATus SYSTem CDEScription?∙ 16-Channel FET Multiplexer Module Description Example Reading the Description of Card #1 ModuleComments ∙ 16-Channel FET Multiplexer Module Model Number Example Reading the Model Number of a Card #1 Module∙ Executing the TRIGgerIMMediate Command a channel list Example Advancing Scan using the TRIGger CommandTRIGger IMMediate∙ Enabling the Trigger Source The TRIGgerSOURce command ∙ Trig Out Port Shared by Switchboxes See the OUTPut commandExample Scanning Using External Triggers Scanning Using Bus TriggersExample Query Trigger Source Ieee 488.2 Common Commands ANSI/IEEE StandardCommand Quick Reference Scpi Commands Quick Reference DescriptionPage Maximum Voltage Screw Terminal Wire Size Watts/Slot Connectors Used P1 Maximum Offset Voltage Number of SlotsInput Impedance Power Requirements 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 Register Bit Descriptions Register moduleManufacturer ID Register Enable IRQ EN Status/Control RegisterScan Channel Delay Register Continuous Enable CNT EN Reset Pointer RST PTRScan Control Register Scan Channel Configuration Register Direct Channel Configuration RegisterA Tree Isolation Switch Disable A-D Valid Channel VLD 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