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Agilent Technologies Switch/Measure manual Analog Buses

Models: Switch/Measure

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Page 27

Features and Functions

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Analog Buses

The 34980A provides four 2- wire internal Analog Buses for easier signal routing. You can route your measurements directly to the internal DMM using the 34980A multiplexer and matrix modules, or you can connect to external signals via the Analog Bus connector located on the instrument’s rear panel (see connector pinout below). Since four 2- wire buses are provided, you can dedicate one bus for use with the internal DMM and use the other three buses for module extensions or additional signal routing between modules.

ANALOG

BUSSES

ABus1 HI (Pin 9)

ABus2 HI (Pin 8)

ABus3 HI (Pin 7)

ABus4 HI (Pin 6)

9 5

6 1

Current I (Pin 5)

ABus1 LO (Pin 4)

ABus2 LO (Pin 3)

ABus3 LO (Pin 2)

ABus4 LO (Pin 1)

Analog Bus connector (as viewed from rear of instrument)

34980A User’s Guide

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Image 27

Agilent Technologies Switch/Measure manual Analog Buses, Analog Bus connector as viewed from rear of instrument

Contents

Agilent 34980A Multifunction Switch/Measure Unit Page Manual Part Number General Additional Safety NoticesDeclaration of Conformity Page Contents Measurement Units Gpib Interface USB Interface LAN Interface Firmware RevisionSelf-Test Relay Cycle Count Scpi Language VersionLow Frequency Multiplexer Switch Modules Matrix Switch Modules General Purpose Switch Modules34938A 20-Channel High-Current GP Switch 34951T Terminal Block Simplified SchematicsIntroduction to the 34980A Front Panel at a Glance Rear Panel at a Glance Rear Panel Connector Pinouts External Trigger Input Connector Male D-SubAnalog Bus Connector Female D-Sub HOT Annunciator Display IndicatorsDMM Front Panel Menu ReferenceView Instrument Rack MountingIntroduction to the 34980A Is located inside the rear cover of this manual Mx+B Scaling Scanning Monitor ModeScpi Language Conventions Rules for Using a Channel ListRoutclos @10302005,1911 General Measurement Configuration Stand-Alone DMM ModeOverview of Measurement Modes Remote Interface Operation Scanning ModeSpecified channels independent of the present scan list Which measurement mode you wish to useIf you specify a chlist, the MEASure? command performs a Scan listAnalog Buses Analog Bus connector as viewed from rear of instrumentFunction Measurement FunctionsMeasurement Range Front Panel Operation DMM or Channel Configure RangeMeasurement Resolution Custom A/D Integration Time PLC Autozero Front Panel Operation DMM or Channel Configure Auto ZeroTrigger delay Trigger DelayResistance, RTD, Thermistor 2- and 4-wire Automatic Trigger DelaysU T I O N Safety InterlockUser-Defined Channel Labels Module Configure Clear LABELS? YES Front Panel Operation Channel Configure Channel LabelFront Panel Operation Module Configure Mode Next POWER-ON Wire Versus 1-Wire Mode2nd Edition Analog Bus and Internal DMM ConsiderationsEnvironmental Operating Conditions Occurs. The pollution has no influence on insulation IECModule inputs Electrical Operating ConditionsTransients High Energy SourcesTemperature Measurement Configuration Temperature transducers supportedMeasurement Units Type thermocouple Thermocouple MeasurementsThermocouple Type Bejknrst RO 100 OHM DMM or Channel Configure Temperature Probe Type RTD4W RTDRTD Measurements RTD TypeThermistor Measurements DMM or Channel Configure Temperature Probe Type ThermistorVoltage Measurement Configuration DC Input ResistanceDC input resistance Front Panel Operation DMM or Channel Configure AC Filter AC Low Frequency FilterAC low frequency filter Resistance Measurement Configuration Front Panel Operation DMM or Channel Configure Offset CompOffset Compensation Current Measurement Configuration Frequency Measurement Configuration Low Frequency TimeoutLow frequency timeout Scaled Reading = Gain x Measurement + Offset Mx+B ScalingDMM or Channel Configure Scaling Gainoffsetunits Rules for Scanning Scanning34980A User’s Guide Scan Configure Clear Scan LIST? YES Adding Channels to the Scan ListTo Build a Scan List From the Front Panel To Build a Scan List From the Remote Interface Scan Trigger Source Interval ScanningTrigger-to-trigger interval Front Panel Operation Scan Configure Interval Scan Interval Front Panel Operation Scan Configure Interval ManualManual Scanning External Scanning Ext Trig Input connector as viewed from rear of instrumentTrigger Count Front Panel Operation Scan Configure Interval ExternalFront Panel Operation Scan Configure Sweep Count Sweep CountSweep count Sample count for Stand-Alone DMM Mode Sample count for Scanning ModeSample Count Front Panel Operation Scan Configure Sample Count Channel delay Channel DelayFront Panel Operation Channel Configure Channel Delay Time Automatic Channel DelaysFront Panel Operation Channel Configure Channel Delay Auto Reading Format Relative Format DefaultNon-Sequential Scanning Viewing Readings Stored in Memory Front Panel Operation View Readings Monitor Mode Front Panel Operation DMM or Channel Measure System-Related Operations Firmware RevisionFront Panel Operation Utility Firmware Revisions Product Firmware Updates Instrument State Storage Error Conditions Front Panel Operation View Error Queue Front-Panel Display Control Self-TestFront-Panel Number Format This feature is available from the front panel onlyRelay Cycle Count Real-Time System ClockScpi Language Version Front Panel Operation Utility Calibrate Unsecure Calibration OverviewCalibration Security To Unsecure the Instrument for CalibrationFront Panel Operation Utility Calibrate SET CAL Code To Secure the Instrument for CalibrationTo Change the Security Code Front Panel Operation Utility Calibrate SecureFront Panel Operation Utility Calibrate Count Calibration CountFront Panel Operation Utility Calibrate CAL Message Calibration MessageWhich is shipped with your 34980A Remote Interface ConfigurationFront Panel Operation Utility Remote I/O Gpib Gpib Address Gpib InterfaceUSB Interface LAN InterfaceAgilent 34980A Web Interface 34980A Web Browser InterfaceIP Address Utility Remote I/O LAN LAN Settings Modify DhcpAuto-IP Utility Remote I/O LAN LAN Settings Modify Dhcp OFFSubnet Mask Utility Remote I/O LAN LAN Settings Modify Dhcp OFF Auto IPDefault Gateway Host Name Utility Remote I/O LAN LAN Settings Modify . . . Host NameDNS Server Domain Name Factory Reset State Factory Reset StateModule Hardware Factory Reset State Preset State Instrument Preset StateModule Hardware Preset State Features and Functions Introduction to the Plug-In Modules for the 34980A Means This Slot and Channel Addressing SchemeInterconnection Solutions Overview Module Considerations General ConsiderationsAdjacent channels WA RN I N G Before they reach the module or the Analog Buses 40/80-Channel Optically-Isolated FET Multiplexer Low Frequency Multiplexer Switch ModulesModules Low Frequency Multiplexer Switch ModulesOn the module of interest MUX modules with Analog Bus connections have Analog BusMeasurement Functions for the MUX Modules Opening and Closing Channels Scpi Programming Examples for the MUX ModulesMaking Measurements Mode or 34923A-1W single-ended mode Configuring a ModuleQuerying and Clearing Cycle Count, and Resetting Modules When using a command to configure the system, the newResets a module in slot 4 to its power- on state Simultaneously 34980A User’s Guide 103 COM 34921A Simplified SchematicBank 34921A D-Sub Connectors34921T Terminal Block All modules that connect to the internal DMM are interlockFurther information 34922A 70-Channel Armature Multiplexer 34922A Simplified Schematic 34922A D-Sub Connectors Shorted to enable the Bank 2 Analog Bus relays to close. 34922T Terminal Block Two-Wire Mode 34923A 40/80-Channel Reed MultiplexerTo take effect Schematics on page 114 Four-Wire ModeOne-Wire Mode Wire resistance measurements in 1-wire mode34923A Simplified Schematic for Two- or Four-Wire Mode 34980A User’s Guide 115 34923A D-Sub Connectors for Two- or Four-Wire Mode Match the present module configuration 34923T-001 Terminal Block for Two- or Four-Wire ModeAnalog Buses 34923A Simplified Schematic for One-Wire Mode34923A D-Sub Connectors for One-Wire Mode Present module configuration 34923T-002 Terminal Block for One-Wire Mode34924A 70-Channel Reed Multiplexer 122 34924A Simplified Schematic 34924A D-Connectors 34980A User’s Guide 125 34924T Terminal Block 34925A 40/80-Channel Optically-Isolated FET Multiplexer Two-WireReverse, you must cycle power on the 34980A for Configuration to take effectOvervoltage Protection Four-WireOne-Wire Interlock Protection34980A User’s Guide 129 COM 34925A Simplified Schematic for Two- or Four-Wire Mode34925A D-Sub Connectors for Two- or Four-Wire Mode 34925T-001 Terminal Block for Two- or Four-Wire Mode 34925A Simplified Schematic for One-Wire Mode 34925A D-Sub Connectors for One-Wired Mode 34925T-002 Terminal Block for One-Wire Mode 136 Matrix Switch Modules Have interlock pins on only their Bank 2 connectors Matrix Switch Modules2437 Scpi Programming Examples for the Matrix ModulesAlthough the previous two examples show the same channel DerivationMatrix 4 connect to the Analog Buses Reading Cycle Count and Resetting Modules to Power-On State For the 34933A will be either 34933A differential mode or34933A-1W single-ended mode Wiring Multiple 34931A or 34932A Modules Wiring Multiple 34933A ModulesLinking Multiple Matrix Modules 34980A User’s Guide 143 34931A Dual 4x8 Armature Matrix Are connecting matricesMatrix 34931A Simplified SchematicMatrix 34931A D-Sub ConnectorsSee page 138 for further information 34931T Terminal BlockFor use with the 34931A module. See the following drawing 34932A Dual 4x16 Armature Matrix Matrix 34932A Simplified SchematicModule is facing you 34932A D-Sub Connectors34932T Terminal Block 34933A Dual/Quad 4x8 Reed Matrix 154 34933A Simplified Schematic for Two-Wire Mode 34933A D-Sub Connectors for Two-Wire Mode Doesnt match the present module configuration 34933T-001 Terminal Block for Two-Wire ModeConnects to 34933A Simplified Schematic for One-Wire Mode Matrices 3 Matrices 1Buses. See page 138 for further information 34933T-002 Terminal Block for One-Wire Mode162 General Purpose Switch Modules Relays General Purpose Switch Modules34980A User’s Guide 165 Reading Jumper State and System Identity 34937A and 34938A Scpi Programming ExamplesCommand resets a module in slot 4 to its power- on state 34937A 32-Channel GP Switch 34937A Simplified SchematicThreshold of 70 oC Channel 34937A D-Sub ConnectorsMicrosoft Excel or Adobe Acrobat format 34937T Terminal Block34938A Simplified Schematic 34938A 20-Channel High-Current GP SwitchChannel Pin Pins 34938A D-Sub Connectors34938T Terminal Block 174 Simplified Schematic RF Multiplexer Switch Modules34941A and 34942A RF Multiplexer Switch Modules Installing SMA Connectors Isolating Connector BanksImmediately prior to installing a cable on that connector 34941A and 34942A Scpi Programming Examples DIAGnosticRELayCYCLes? @6101,620234941A and 34942A Simplified Schematic 180 Dual/Triple Microwave Switch Modules 34946A and 34947A Scpi Programming Examples 34946A and 34947A Dual/Triple Microwave Switch ModulesDIAGnosticRELayCYCLes? @6201 34946A and 34947A Simplified Schematics Module 34951A Scpi Programming Examples Channel Isolated D/A Converter with Waveform Memory ModuleRemote-sensing terminals H Sense and L Sense Recommended that you use remote-sensing. However, ifModule’s Clock Out cannot drive the line at the same time Signal. However, both a user-supplied external clockSignal is detected on ABus1 Level Mode Waveform Mode34951A Scpi Programming Examples External Clock Default security code is AT34980 External TriggerAuto Calibration Using this command will erase any downloaded waveforms Configuring a DAC ModuleInternal to the 34951A Module User-Supplied Connections 34951A Simplified SchematicsInternal to the 34951A Module 34951A D-Sub Connector Pinout34951T Terminal Block 196 Multifunction Module Multifunction Module with DIO, D/A, and TotalizerTotalizer Input Enabled state, effectively creating a gate always condition34952A Multifunction Module Digital Input/Output34952A Scpi Programming Examples Digital Input/OutputTotalizer DAC Output Configuring a Multifunction ModuleDIO 34952A Simplified SchematicPin Sub Connector34952T Terminal Block