Agilent Technologies Switch/Measure User Manual
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Agilent Technologies Switch/Measure User Manual

Multifunction switch/measure unit
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Agilent 34980A
Multifunction
Switch/Measure Unit
User's Guide
Agilent Technologies

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  • Page 1 Agilent 34980A Multifunction Switch/Measure Unit User’s Guide Agilent Technologies...

  • Page 3: Safety Notices

    Notices © Agilent Technologies, Inc. 2004 No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or transla- tion into a foreign language) without prior agreement and written consent from Agi- lent Technologies, Inc.
  • Page 4 Agilent Technologies assumes no liability of the customer’s failure to com- ply with the requirements. General Do not use this products in any manner not specified by the manufacturer.
  • Page 5 This DoC applies to above-listed products placed on the EU market after: 9 November 2004 Date For further information, please contact your local Agilent Technologies sales office, agent or distributor, or Agilent Technologies Deutschland GmbH, Herrenberger Straße 130, D 71034 Böblingen, Germany. Template: A5971-5302-2, Rev. B.00...

  • Page 7: Table Of Contents

    Contents 1 Introduction to the 34980A Front Panel at a Glance Rear Panel at a Glance Rear Panel Connector Pinouts External Trigger Input Connector (Male D-Sub) Analog Bus Connector (Female D-Sub) Annunciator Display Indicators Front Panel Menu Reference Instrument Rack Mounting 2 Features and Functions SCPI Language Conventions Rules for Using a Channel List...
  • Page 8 Temperature Measurement Configuration Measurement Units Thermocouple Measurements RTD Measurements Thermistor Measurements Voltage Measurement Configuration DC Input Resistance AC Low Frequency Filter Resistance Measurement Configuration Offset Compensation Current Measurement Configuration AC Low Frequency Filter Frequency Measurement Configuration Low Frequency Timeout Mx+B Scaling Scanning Rules for Scanning Adding Channels to the Scan List...
  • Page 9 System-Related Operations Firmware Revision Product Firmware Updates Instrument State Storage Error Conditions Self-Test Front-Panel Display Control Front-Panel Number Format Real-Time System Clock Relay Cycle Count SCPI Language Version Calibration Overview Calibration Security Calibration Count Calibration Message Remote Interface Configuration GPIB Interface USB Interface LAN Interface Factory Reset State...
  • Page 10 4 Low Frequency Multiplexer Switch Modules Low Frequency Multiplexer Switch Modules Measurement Functions for the MUX Modules SCPI Programming Examples for the MUX Modules 34921A 40-Channel Armature Multiplexer with Low Thermal Offset 34921A Simplified Schematic 34921A D-Sub Connectors 34921T Terminal Block 34922A 70-Channel Armature Multiplexer 34922A Simplified Schematic 34922A D-Sub Connectors...
  • Page 11 5 Matrix Switch Modules Matrix Switch Modules SCPI Programming Examples for the Matrix Modules Linking Multiple Matrix Modules 34931A Dual 4x8 Armature Matrix 34931A Simplified Schematic 34931A D-Sub Connectors 34931T Terminal Block 34932A Dual 4x16 Armature Matrix 34932A Simplified Schematic 34932A D-Sub Connectors 34932T Terminal Block 34933A Dual/Quad 4x8 Reed Matrix...
  • Page 12 8 Dual/Triple Microwave Switch Modules 34946A and 34947A Dual/Triple Microwave Switch Modules 34946A and 34947A SCPI Programming Examples Installing SMA Connectors 34946A and 34947A Simplified Schematics 9 4-Channel Isolated D/A Converter with Waveform Memory Module 34951A 4-Channel Isolated D/A Converter with Waveform Memory Module 34951A SCPI Programming Examples 34951A Simplified Schematics 34951A D-Sub Connector Pinout...
  • Page 13 Agilent 34980A Multifunction Switch/Measure Unit User’s Guide Introduction to the 34980A Front Panel at a Glance Rear Panel at a Glance Rear Panel Connector Pinouts Annunciator Display Indicators Front Panel Menu Reference Instrument Rack Mounting Agilent Technologies...

  • Page 14: Introduction To The 34980A

    Introduction to the 34980A Front Panel at a Glance On/Standby switch WARNINGss WARNING remove the power cord. Utility menu contains settings for Remote I/O (LAN, GPIB, and USB), Date and Time, and other system-related instrument parameters Store/recall menu allows you to save and recall up to six instrument setups Control keys directly control module actions Number keypad enters numerical characters Exponent...

  • Page 15: Rear Panel At A Glance

    Rear Panel at a Glance Access to Analog Buses (shown with cover installed). For pinout, see Module installed in slot 1 Slot identifier Module ground screw Slot cover over slot 2 AC power connector LAN connector (10Base T/100Base Tx) USB 2.0 connector External trigger input.

  • Page 16: Rear Panel Connector Pinouts

    Introduction to the 34980A Rear Panel Connector Pinouts External Trigger Input Connector (Male D-Sub) Analog Bus Connector (Female D-Sub) ABus1 HI (Pin 9) ABus2 HI (Pin 8) ABus3 HI (Pin 7) ABus4 HI (Pin 6) Ext Trig Input (Pin 6) Gnd (Pin 9) ANALOG BUSSES...

  • Page 17: Annunciator Display Indicators

    Annunciator Display Indicators Display Indicator Definition Communicating with the 34980A over LAN Communicating with the 34980A over USB GPIB Communicating with the 34980A over GPIB ABUS [1234] Analog Bus Connectivity. Normally, designated ABus connected on any module in mainframe. During scan, if ABus 1 and ABus 2 are indicated, they will be used at some point during the scan An error has been generated and is in the error queue ERROR Remote.

  • Page 18: Front Panel Menu Reference

    Introduction to the 34980A Front Panel Menu Reference This section gives an overview of the top two levels of menus that you access from the front panel. The menus are designed to automatically guide you through all parameters required to configure a particular function or operation.

  • Page 19: Instrument Rack Mounting

    View • View readings, alarms, and errors • View the scanned readings from memory • View errors in the error queue • Read the number of cycles for the displayed relay (relay maintenance feature). Advanced Available at a later firmware release Alarm Available at a later firmware release Instrument Rack Mounting...
  • Page 20 Introduction to the 34980A 34980A User’s Guide...

  • Page 21: Features And Functions

    Agilent 34980A Multifunction Switch/Measure Unit User’s Guide Features and Functions SCPI Language Conventions General Measurement Configuration Analog Bus and Internal DMM Considerations Temperature Measurement Configuration Voltage Measurement Configuration Resistance Measurement Configuration Current Measurement Configuration Frequency Measurement Configuration Mx+B Scaling Scanning...

  • Page 22: Scpi Language Conventions

    Features and Functions SCPI Language Conventions Throughout this guide, the following conventions are used for SCPI command syntax for remote interface programming: • Braces ( { } ) enclose the parameter choices for a given command string. The braces are not sent with the command string. •...
  • Page 23 The Analog Bus relays (numbered s911, s912, s913, etc.) on the multiplexer and matrix modules are ignored if they are included in a range of channels. An error will be generated if an Analog Bus relay is specified as the first or last channel in a range of channels. For example, the following command closes all valid channels between channel 30 (slot 1) and channel 5 (slot 2).

  • Page 24: General Measurement Configuration

    Features and Functions General Measurement Configuration This section contains general information to help you configure the instrument for making measurements. Since these parameters are used by several measurement functions, the discussion is combined into one common section. Refer to the later sections in this chapter for more information on parameters that are specific to each measurement function.
  • Page 25 • To view the readings in memory, use the not erased when you read them). Each time you initiate a new DMM- only scan, the instrument will clear the previous set of readings from memory. Remote Interface Operation: • You can use the quickly take a stand- alone DMM reading.
  • Page 26 Features and Functions Front Panel Operation: • To configure the measurement parameters and add a channel to the scan list, use the Channel (Configure) key. • To initiate a scan and store all readings in memory, press the Scan (Measure) key. If you press the Scan (Measure) key with no scan list defined, the instrument initiates a DMM- only measurement (see “Stand- Alone DMM Mode”...

  • Page 27: Analog Buses

    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).

  • Page 28: Measurement Functions

    Features and Functions Measurement Functions The following table shows which DMM measurement functions are supported by each of the multiplexer modules. Note that similar considerations must be taken into account on the 34931A, 34932A, and 34933A matrix modules. Since the matrix modules cannot be incorporated into a scan list, you must use the Stand- Alone DMM Mode for these modules.

  • Page 29: Measurement Range

    Measurement Range You can allow the instrument to automatically select the measurement range using autoranging or you can select a fixed range using manual ranging. Autoranging is convenient because the instrument decides which range to use for each measurement based on the input signal. For fastest scanning operation, use manual ranging on each measurement (some additional time is required for autoranging since the instrument has to make a range selection).

  • Page 30: Measurement Resolution

    Features and Functions Measurement Resolution Resolution is expressed in number of digits the internal DMM can measure or display on the front panel. You can set the resolution to 4, 5, or 6 full digits, plus a “½” digit which can be “0” or “1”. To increase the measurement accuracy and improve noise rejection, select 6½...

  • Page 31: Custom A/D Integration Time

    The following command selects the 1 A range with 6½ digits of resolution on channel 2041 (current measurements are allowed only on channels 41 through 44 on the 34921A). MEAS:CURR:AC? 1,1E-6,(@2041) You can also select the resolution using the the following command specifies a 2- wire ohms measurement with 100 resolution on channel 1003.
  • Page 32 Features and Functions • The following table shows the relationship between integration time, measurement resolution, number of digits, and number of bits. Relationship between integration time, resolution, digits, and bits Integration Time 0.02 PLC 0.2 PLC 1 PLC 2 PLC 10 PLC 20 PLC 100 PLC...

  • Page 33: Autozero

    Autozero When autozero is enabled (default), the instrument internally disconnects the input signal following each measurement, and takes a zero reading. It then subtracts the zero reading from the preceding reading. This prevents offset voltages present on the instrument’s input circuitry from affecting measurement accuracy.

  • Page 34: Trigger Delay

    Features and Functions Trigger Delay In some applications, you want to allow the input to settle before taking a reading or for pacing a burst of readings. You can add a trigger delay, which adds a delay between the trigger signal and the first sample taken by the internal DMM (not used in Scanning Mode).

  • Page 35: Automatic Trigger Delays

    Automatic Trigger Delays If you do not specify a trigger delay, the instrument selects a delay for you. The delay is determined by the function, range, integration time, and ac filter setting as shown below. DC Voltage, Thermocouple, DC Current (for all ranges): Integration Time PLC >...

  • Page 36: Safety Interlock

    Features and Functions Safety Interlock The Safety Interlock feature prevents connections to the Analog Buses if no terminal block or properly- wired cable is connected to a module (available on multiplexer and matrix modules only). Normally, if you attempt to connect to the Analog Buses without a terminal block or properly- wired cable connected, an error is generated.

  • Page 37: User-Defined Channel Labels

    User-Defined Channel Labels You can assign user- defined labels to any channel, including Analog Bus channels on the multiplexer and matrix modules. User- defined channel labels are available for identification purposes only and cannot be used in place of a channel number within a command string. •...
  • Page 38 Features and Functions Front Panel Operation: Channel (Configure) > CHANNEL LABEL To define the channel label, press the arrow keys to move the cursor to a specific position and then turn the knob to select the desired letter or number. To clear the channel label on the selected channel, change each character to “...

  • Page 39: 2-Wire Versus 1-Wire Mode

    2-Wire Versus 1-Wire Mode You can configure the 34923A, 34925A, and 34933A modules for 2- wire (differential) or 1- wire (single ended) measurements. If you change the module configuration, you must cycle power on the 34980A to activate the new setting. •...

  • Page 40: Analog Bus And Internal Dmm Considerations

    Features and Functions Analog Bus and Internal DMM Considerations This section provides important environmental and electrical considerations that can affect mainframe operation. Environmental Operating Conditions The 34980A mainframe, including the optional internal DMM, is designed to operate in a temperature range of 0 °C to +55 °C with non- condensing humidity.

  • Page 41: Electrical Operating Conditions

    Electrical Operating Conditions WARN IN G Transients The Analog Buses and the optional internal DMM are designed to safely withstand occasional transient overvoltages up to 1000 Vpeak. Typically, these transient overvoltages result from switching inductive loads or from nearby lightning strikes. The lightning- caused transient overvoltages that may occasionally occur on mains power outlets may be as high as 2500 Vpeak.

  • Page 42: Temperature Measurement Configuration

    Features and Functions Temperature Measurement Configuration This section contains information to help you configure the instrument for making temperature measurements. The table below shows the thermocouple, RTD, and thermistor types for which the instrument supports direct measurements. Temperature transducers supported Thermocouple Types B, E, J, K, N, R, S, T * Using ITS-90 software conversions.

  • Page 43: Thermocouple Measurements

    Thermocouple Measurements • The instrument supports the following thermocouple types: B, E, J, K, N, R, S, and T using ITS- 90 software conversions. The default is a J- Type thermocouple. • Thermocouple measurements require a reference junction temperature. For the reference junction temperature, you can use an internal measurement on the module (34921A only), an external thermistor or RTD measurement, or a known fixed junction temperature.
  • Page 44 Features and Functions Front Panel Operation: To select the thermocouple function on the active channel, choose the following items. DMM or Channel (Configure) > TEMPERATURE > PROBE TYPE > THERMOCOUPLE Then, use the knob to select the thermocouple type from the list. THERMOCOUPLE TYPE >...

  • Page 45: Rtd Measurements

    RTD Measurements • The instrument supports RTDs with ITS- 90 software conversions or conversions. The default is • The resistance of an RTD is nominal at 0 °C and is referred to as R The instrument can measure RTDs with R •...

  • Page 46: Thermistor Measurements

    Features and Functions The following command sets the nominal resistance (R channel 1003. SENS:TEMP:TRAN:FRTD:RES 1000,(@1003) Thermistor Measurements The instrument supports 2.2 k and 10 k Front Panel Operation: To select the thermistor function for the active channel, choose the following items. DMM or Channel (Configure) >...

  • Page 47: Voltage Measurement Configuration

    Voltage Measurement Configuration This section contains information to help you configure the instrument for making voltage measurements. The instrument can measure dc and true RMS ac- coupled voltages on the measurement ranges shown below. 100 mV DC Input Resistance Normally, the instrument’s input resistance is fixed at 10 M dc voltage ranges to minimize noise pickup.

  • Page 48: Ac Low Frequency Filter

    Features and Functions AC Low Frequency Filter The instrument uses three different ac filters which enable you to either optimize low- frequency accuracy or achieve faster ac settling times. The instrument selects the slow (3 Hz), medium (20 Hz), or fast (300 Hz) filter based on the input frequency that you specify for the selected channels or the internal DMM.

  • Page 49: Resistance Measurement Configuration

    Resistance Measurement Configuration This section contains information to help you configure the instrument for making resistance measurements. Use the 2- wire method for ease of wiring and higher density or use the 4- wire method for improved measurement accuracy. The measurement ranges shown below. Offset Compensation Offset compensation removes the effects of any dc voltages in the circuit being measured.

  • Page 50: Current Measurement Configuration

    Features and Functions Current Measurement Configuration This section contains information to help you configure the instrument for making current measurements on the 34921A multiplexer module. The module has four fused channels for direct dc and ac current measurements on the ranges shown below. 10 mA Current measurements are allowed only on channels 41 through 44 on the 34921A module.

  • Page 51: Frequency Measurement Configuration

    Frequency Measurement Configuration This section contains information to help you configure the instrument for making frequency measurements. Low Frequency Timeout The instrument uses three different timeout ranges for frequency measurements. The instrument selects the slow (3 Hz), medium (20 Hz), or fast (300 Hz) filter based on the input frequency that you specify with this command for the selected channels.

  • Page 52: Mx+B Scaling

    Features and Functions Mx+B Scaling The scaling function allows you to apply a gain and offset to readings during a scan or while making measurements in the stand- alone DMM mode. In addition to setting the gain (“M”) and offset (“B”) values, you can also specify a custom measurement label for your scaled readings (RPM, PSI, etc.).
  • Page 53 • The CONFigure (“M”) to 1 and offset (“B”) to 0. • A Factory Reset ( scaling values on all channels. An Instrument Preset ( command) does not clear the scaling values and does not turn off scaling. Front Panel Operation: DMM or Channel (Configure) >...

  • Page 54: Scanning

    Features and Functions Scanning The instrument allows you to combine a DMM (either internal or external) with multiplexer channels to create a scan. During a scan, the instrument connects the DMM to the configured multiplexer channels one at a time and makes a measurement on each channel.
  • Page 55 • The Analog Bus relays are automatically opened and closed as required during the scan to connect to the internal DMM for the measurement. For example, all 2- wire measurements use the ABus1 (MEAS) relays; for 4- wire measurements, the ABus2 (SENS) relays are used in addition to the ABus1 relays.

  • Page 56: Adding Channels To The Scan List

    Features and Functions • At the end of the scan, the last channel that was scanned will be opened (as well as any Analog Bus relays used during the scan). Any channels that were opened during the scan will remain open at the completion of the scan.
  • Page 57 • To initiate a scan and store all readings in memory, press Scan (Measure). Each time you initiate a new scan, the instrument clears all previously stored readings. If you have not defined a scan list, Scan (Measure) performs an internal DMM scan independent of any channels.

  • Page 58: Scan Trigger Source

    Features and Functions Scan Trigger Source You can configure the event or action that controls the onset of each sweep through the scan list (a sweep is one pass through the scan list): • You can set the instrument’s internal timer to automatically scan at a specific interval.
  • Page 59 • The instrument sets the scan interval to immediate (0 seconds) after a Factory Reset ( command) or Card Reset ( the setting. Front Panel Operation: Scan (Configure) > INTERVAL > SCAN INTERVAL To initiate the scan and store all readings in memory, press the Scan (Measure) key.
  • Page 60 Features and Functions Remote Interface Operation: The following program segment configures the instrument for a manual scanning operation. TRIG:SOURCE BUS TRIG:COUNT 2 INIT Then, send the *TRG the “wait- for- trigger” state. Note: To stop a scan, press and hold the Scan (Measure) key. External Scanning In this configuration, the instrument sweeps through the scan list once each time a low- going TTL pulse is received on the rear- panel Ext Trig...

  • Page 61: Trigger Count

    Front Panel Operation: Scan (Configure) > INTERVAL > EXTERNAL To initiate the scan and store all readings in memory, press the Scan (Measure) key. Between scan sweeps, “WAITING FOR TRIG” will be displayed on the front panel. When a TTL pulse is received, the scan starts and readings are stored in memory.

  • Page 62: Sweep Count

    Features and Functions Sweep Count The sweep count sets the number of sweeps per trigger event during a scan (a sweep is one pass through the scan list). The front- panel sample annunciator (“ *”) turns on during each measurement. Trigger Sweep count •...

  • Page 63: Sample Count

    Sample Count The sample count sets the number of auto- triggered samples the internal DMM will take per channel per trigger. The sample count applies to both scanning and stand- alone DMM measurements (with no scan list). The front- panel sample annunciator (“ *”) turns on during each measurement. Trigger Sample count for Stand-Alone DMM Mode Trigger...
  • Page 64 Features and Functions • For scanning, the specified sample count sets the number of readings per channel (same for all channels in the scan list). If no channels have been assigned to the scan list, the sample count sets the number of readings per trigger for the internal DMM.

  • Page 65: Channel Delay

    Channel Delay You can control the pacing of a scan sweep by inserting a delay between multiplexer channels in the scan list (useful for high- impedance or high- capacitance circuits). The delay is inserted between the relay closure and the actual measurement on the channel, in addition to any delay that will implicitly occur due to relay settling time.

  • Page 66: Automatic Channel Delays

    Features and Functions • To ensure you are getting the most accurate measurements possible, use care when setting the channel delay less than the default value (automatic). The default channel delay is designed to optimize parameters, such as settling time, for the most accurate measurements. •...
  • Page 67 AC Voltage, AC Current (for all ranges): AC Filter Slow (3 Hz) Medium (20 Hz) Fast (200 Hz) Frequency, Period: AC Filter Slow (3 Hz) Medium (20 Hz) Fast (200 Hz) Digital Input, Totalize: Channel Delay 0 seconds Front Panel Operation: Channel (Configure) > CHANNEL DELAY > AUTO Once you have added the specified channel to the scan list, the channel delay choice will be visible in the menu.

  • Page 68: Reading Format

    Features and Functions Reading Format During a scan, the instrument automatically adds a time stamp to all readings and stores them in memory. Each reading is stored with measurement units, time stamp, channel number, and alarm status information. From the remote interface, you can specify which information you want returned with the readings (from the front panel, all of the information is available for viewing).

  • Page 69: Non-Sequential Scanning

    Remote Interface Operation: Use the following commands to select the reading format. FORMat:READing:ALARm ON FORMat:READing:CHANnel ON FORMat:READing:TIME ON FORMat:READing:TIME:TYPE {ABSolute|RELative} FORMat:READing:UNIT ON Non-Sequential Scanning By default, the instrument scans the list of channels in ascending order from slot 1 through slot 8 (channels are reordered as needed). If your application requires non- ordered scanning of the channels in the present scan list, you can use the non- sequential scanning mode.

  • Page 70: Viewing Readings Stored In Memory

    Features and Functions • The scan order setting is stored in volatile memory and the ordered mode will be enabled when power is turned off or after a Factory Reset command). *RST Remote Interface Operation: Viewing Readings Stored in Memory •...
  • Page 71 Front Panel Operation: View > READINGS Remote Interface Operation: The following command retrieves stored readings from memory (the readings are not erased). FETCh? Use the following commands to query the statistics on the readings stored in memory for a specific channel or from the internal DMM. These commands do not remove the data from memory.

  • Page 72: Monitor Mode

    Features and Functions Monitor Mode In the Monitor mode, the instrument takes readings as often as it can on a single channel or the internal DMM, even during a scan. This feature is useful for troubleshooting your system before a test or for watching an important signal.
  • Page 73 Front Panel Operation: DMM or Channel (Measure) For channel monitoring, turn the knob to the desired channel. To stop a Monitor, press the lighted key again. Remote Interface Operation: Use the following command to select between the channel Monitor mode (default) and the internal DMM monitor mode. ROUTe:MONitor:MODE {CHANnel|DMM} The following program segment selects the channel to be monitored (specify only one channel) and enables the Monitor function.

  • Page 74: System-Related Operations

    SYSTem:CTYPe? <slot> This command returns a string in the form: AGILENT TECHNOLOGIES,<Model Number>,<Serial Number>,<Firmware Rev> “0” is always returned for the Serial Number field. The Firmware Revision has the form R.RR and indicates the revision of firmware currently in use on the specified module.

  • Page 75: Product Firmware Updates

    Product Firmware Updates As new product features and enhancements become available, you can easily update your mainframe firmware to ensure optimum compatibility. The latest firmware updates are available from the Agilent 34980A product page at www.agilent.com/find/34980a Downloads”). Instrument State Storage The instrument has five storage locations in non- volatile memory to store instrument states, numbered 1 through 5.

  • Page 76: Error Conditions

    Features and Functions Front Panel Operation: Store/Recall > STORE|RECALL|DELETE|RENAME|AUTO To rename a location, select RENAME. Press the arrow keys to move the cursor to a specific position and then turn the knob to select the desired letter or number. To clear the name of a location, change each character to “...
  • Page 77 • Errors are retrieved in first- in- first- out (FIFO) order. The first error returned is the first error that was stored. Errors are cleared as you read them. Once you have read all of the interface- specific errors, the errors in the global queue are retrieved.

  • Page 78: Self-Test

    Features and Functions Self-Test A power- on self- test occurs automatically when you turn on the instrument. This limited test assures you that the instrument and all installed plug- in modules are operational. This self- test does not perform the extensive self test described below. A complete self- test actually performs a series of internal tests and takes approximately 20 seconds to execute.

  • Page 79: Front-Panel Number Format

    • You can display a message on the front panel by sending a command from the remote interface. The instrument can display up to 18 characters on the upper line of the front- panel display; any additional characters are truncated (no error is generated). You can use letters (A- Z), numbers (0- 9), and special characters like “@”, “%”, “*”, etc.

  • Page 80: Real-Time System Clock

    Features and Functions Real-Time System Clock During a scan, the instrument stores all readings and alarms with the current time and date (based on a 24- hour clock). • When shipped from the factory, the instrument is set to the current time and date for Greenwich Mean Time (GMT).

  • Page 81: Scpi Language Version

    Remote Interface Operation: internal DMM relay or module channel relays, send the following commands. DIAG:DMM:CYCLES? 2 DIAG:RELAY:CYCLES? (@1003,1013) To reset the cycle count on the specified module channel relays, send the following command (the instrument must be unsecured). DIAG:RELAY:CYCLES:CLEAR (@1003,1911) SCPI Language Version The instrument complies with the rules and conventions of the present version of SCPI (Standard Commands for Programmable Instruments).

  • Page 82: Calibration Overview

    Features and Functions Calibration Overview This section gives a brief introduction to the calibration features of the instrument and plug- in modules. For a more detailed discussion of the calibration procedures, see the Agilent 34980A Service Guide. Calibration Security This feature allows you to enter a security code to prevent accidental or unauthorized calibrations of the instrument.
  • Page 83 To Secure the Instrument for Calibration You can secure the instrument either from the front panel or over the remote interface. The instrument is secured when shipped from the factory. Once you enter a security code, that code must be used for both front- panel and remote operation.

  • Page 84: Calibration Count

    Features and Functions Calibration Count You can query the instrument to determine how many calibrations have been performed on the entire mainframe, the digital modules, or the internal DMM. Note that your instrument was calibrated before it left the factory. When you receive your instrument, be sure to read the various counts to determine the initial values.

  • Page 85: Calibration Message

    Calibration Message The instrument allows you to store one message in calibration memory in the mainframe, a digital module, or the internal DMM. For example, you can store such information as the date when the last calibration was performed, the date when the next calibration is due, the instrument’s serial number, or even the name and phone number of the person to contact for a new calibration.

  • Page 86: Remote Interface Configuration

    Features and Functions Remote Interface Configuration This section gives information on configuring the instrument for remote interface communication. For more information on the SCPI commands available to program the instrument over the remote interface, see the Programmer’s Reference Help file included on the Agilent 34980A Product Reference CD- ROM.

  • Page 87: Gpib Interface

    GPIB Interface Each device on the GPIB (IEEE- 488) interface must have a unique address. You can set the instrument’s address to any value between 0 and 30. The address is set to “9” when the instrument is shipped from the factory. •...
  • Page 88 Features and Functions 34980A Web Browser Interface The Agilent 34980A provides a Web Interface which is built into the instrument. You can use this interface over LAN for remote access and control of the instrument via a Java ® Microsoft To access and use the 34980A Web Interface: Establish a LAN interface connection from your computer to the 34980A.
  • Page 89 DHCP DHCP (Dynamic Host Configuration Protocol) is a protocol for automatically assigning a dynamic IP address to a device on a network. DHCP is typically the easiest way to configure your instrument for remote communication using the LAN interface. If you change the DHCP setting, you must cycle power on the 34980A to activate the new setting.
  • Page 90 Features and Functions • Dot- notation addresses (“nnn.nnn.nnn.nnn” where “nnn” is a byte value) must be expressed with care, as most web software on the computer will interpret byte values with leading zeros as octal numbers. For example, “255.255.020.011” is actually equivalent to decimal “255.255.16.9”...
  • Page 91 Front Panel Operation: Utility > REMOTE I/O > LAN > LAN SETTINGS > MODIFY > DHCP OFF > AUTO IP Remote Interface Operation: SYSTem:COMMunicate:LAN:AUTOip (OFF|ON} Subnet Mask The instrument uses the Subnet Mask to determine if a client IP address is on the same local subnet.
  • Page 92 Features and Functions Front Panel Operation: Utility > REMOTE I/O > LAN > LAN SETTINGS > MODIFY > DHCP OFF > AUTO IP OFF > . . . SUBNET MASK Remote Interface Operation: SYSTem:COMMunicate:LAN:SMASk <mask> Default Gateway A Default Gateway address allows the instrument to communicate with systems that are not on the local subnet.
  • Page 93 Front Panel Operation: Utility > REMOTE I/O > LAN > LAN SETTINGS > MODIFY > DHCP OFF > AUTO IP OFF > . . . DEFAULT GATEWAY Remote Interface Operation: SYSTem:COMMunicate:LAN:GATEway <address> Host Name The Host Name is the host portion of the domain name, which is translated into an IP address.
  • Page 94 Features and Functions DNS Server The Domain Name Service (DNS) is an Internet service that translates Domain names into IP addresses. Contact your network administrator to determine if DNS is being used and for the correct address. If you change the DNS address, you must cycle power on the 34980A to activate the new setting.
  • Page 95 Domain Name A domain name is a registered name on the Internet, which is translated into an IP address. This feature is available from the remote interface only. If you change the Domain Name, you must cycle power on the 34980A to activate the new setting.

  • Page 96: Factory Reset State

    Features and Functions Factory Reset State The following tables show the state of the instrument after a SYSTem:CPON Measurement Configuration Function Range Resolution Integration Time Input Resistance Channel Labels Channel Delay Reading Format Sample Count Trigger Count Trigger Delay Trigger Source Scanning Operations Scan List Reading Memory...
  • Page 97 Module Hardware Multiplexer Modules Matrix Modules GP Modules RF Modules Microwave Modules System Control Modules System-Related Operations Display State Error Queue Stored States System Date System Time Temperature Units 34980A User’s Guide Features and Functions Factory Reset State All Channels Open 2-Wire/1-Wire Mode: No Change All Channels Open 2-Wire/1-Wire Mode: No Change...

  • Page 98: Instrument Preset State

    Features and Functions Instrument Preset State The following tables show the state of the instrument after a SYSTem:PRESet Measurement Configuration Function Range Resolution Integration Time Input Resistance Channel Labels Channel Delay Reading Format Sample Count Trigger Count Trigger Delay Trigger Source Scanning Operations Scan List Reading Memory...
  • Page 99 Module Hardware Multiplexer Modules Matrix Modules GP Modules RF Modules Microwave Modules System Control Modules System-Related Operations Display State Error Queue Stored States System Date System Time Temperature Units 34980A User’s Guide Features and Functions Preset State All Channels Open 2-Wire/1-Wire Mode: No Change All Channels Open 2-Wire/1-Wire Mode: No Change...
  • Page 100 Features and Functions 34980A User’s Guide...
  • Page 101 Agilent 34980A Multifunction Switch/Measure Unit User’s Guide Introduction to the Plug-In Modules for the 34980A Slot and Channel Addressing Scheme Interconnection Solutions Overview Module Considerations Agilent Technologies...

  • Page 102: Introduction To The Plug-In Modules For The 34980A

    Introduction to the Plug-In Modules for the 34980A Slot and Channel Addressing Scheme The eight module slots in the 34980A are arranged as shown below. The slot and channel addressing scheme for the 34980A follows the form sccc where s is the mainframe slot number (1 through 8) and ccc is the three- digit channel number.

  • Page 103: Interconnection Solutions Overview

    Interconnection Solutions Overview Depending upon your need, you can connect your DUT to the module using one of these interconnection solutions: • 349xxT, terminal blocks for compatible low frequency modules, offer a flexible method for connecting (300 V rated). • Y1135, Y1136, Y1137, and Y1138, standard cables for 50- pin D- sub and 78- pin D- sub connectors (300 V rated), are available.

  • Page 104: Module Considerations

    Introduction to the Plug-In Modules for the 34980A Module Considerations This section lists important items and actions that can affect the operation of your modules. General Considerations N O TE Environmental Operating Conditions These modules are designed to operate in a temperature range of 0 °C to +55 °C with non- condensing humidity.

  • Page 105: Electrical Operating Conditions

    Module 34937A 34938A 34941A 34946A 34947A 34951A 34952A N O TE N O TE CAU T ION Electrical Operating Conditions WARN IN G 34980A User’s Guide Introduction to the Plug-In Modules for the 34980A Pollution Degree 1 Specifications 28 channels, 300 V rms or DC, 1 A, 60 VA per channel 4 channels, 250 V rms or 30 VDC, 5A, 150 VA per channel...
  • Page 106 Introduction to the Plug-In Modules for the 34980A Transients The 34921A, 34922A, 34923A, 34924A, 34925A, 34931A, 34932A, 34933A, 34937A, and 34938A modules are designed to safely withstand occasional transient overvoltages up to 1000 Vpeak. Typically, these transient overvoltages result from switching inductive loads or from nearby lightning strikes.
  • Page 107 Agilent 34980A Multifunction Switch/Measure Unit User’s Guide Low Frequency Multiplexer Switch Modules Low Frequency Multiplexer Switch Modules Measurement Functions for the MUX Modules SCPI Programming Examples for the MUX Modules 34921A 40-Channel Armature Multiplexer with Low Thermal Offset 34921T Terminal Block...

  • Page 108: Low Frequency Multiplexer Switch Modules

    Low Frequency Multiplexer Switch Modules Low Frequency Multiplexer Switch Modules All low frequency multiplexer (MUX) switch modules feature two banks of channels that provide broad multiplexing and measuring capabilities. You can connect a MUX to an external instrument, and/or switch multiple analog signals to the internal DMM.

  • Page 109: Low Frequency Multiplexer Switch Modules

    Measurement Functions for the MUX Modules The MUX modules support the DMM measurement functions as shown in the following table. 34921A 34922A 40-Ch Arm 70-Ch Arm Function Voltage, AC/DC Current, AC/DC Frequency/Period Ohms 2-Wire Ohms 4-Wire Thermocouple RTD 2-Wire RTD 4-Wire Thermistor Direct current measurements are allowed on channels 41 through 44 only (for all other channels, external shunts are required).

  • Page 110: Scpi Programming Examples For The Mux Modules

    Low Frequency Multiplexer Switch Modules SCPI Programming Examples for the MUX Modules The programming examples below provide you with SCPI command examples to use for actions specific to the MUX modules. The slot and channel addressing scheme used in these examples follow the form sccc where s is the mainframe slot number (1 through 8) and ccc is the three- digit channel number.
  • Page 111 Low Frequency Multiplexer Switch Modules Example: Closing and opening Analog Bus relays The following command connects the Analog Buses to Bank 1 (via the Analog Bus relays on Bank 1) for a module in slot 3. ROUTe:CLOSe (@3911,3912,3913,3914) ROUTe:OPEN (@3911,3912,3913,3914) The Analog Bus relays (numbered s911, s912, s913, etc.) on the MUX modules are ignored if they are included in a range of channels.
  • Page 112 Low Frequency Multiplexer Switch Modules Example: Making current measurements The following command configures channel 43 for a 34921A modules in slot 7 for dc current measurements, triggers the internal DMM to scan the channel, and then sends the reading to the output buffer of the 34980A. The default settings for range (autorange) and resolution (1 PLC) are used for the measurement.
  • Page 113 Low Frequency Multiplexer Switch Modules Example: Clearing the cycle count for a relay The following command resets the cycle count to zero on the channels 7 and 16 for a MUX module in slot 1. DIAGnostic:RELay:CYCLes:CLEar (@1007,1016) Example: Resetting module(s) to power-on state The following command resets a module in slot 4 to its power- on state.

  • Page 114: 34921A 40-Channel Armature Multiplexer With Low Thermal Offset

    Low Frequency Multiplexer Switch Modules 34921A 40-Channel Armature Multiplexer with Low Thermal Offset The 34921A 40- Channel Armature Multiplexer (40- Ch Arm MUX) is divided into two banks with 20 latching armature switches (channels 1- 20 and 21- 40) in each. This module also offers four additional fused relays (channels 41- 44) for making AC and DC current measurements with the internal DMM with no external shunts needed.
  • Page 115 Low Frequency Multiplexer Switch Modules Low thermal offset voltage makes the 34921A ideal for low- level signal switching. The 34921T optional terminal block provides a built- in thermocouple reference junction that helps minimize errors due to thermal offset when you measure thermocouples. This module has capability to scan as many as 100 channels/second using the internal DMM.

  • Page 116: 34921A Simplified Schematic

    Low Frequency Multiplexer Switch Modules 34921A Simplified Schematic This drawing shows two independent 20- channel 2- wire MUXes. NOTE: The three-digit number assigned to each switch represents the channel number. NOTE: Bank relays: Armature latching Analog Bus relays: Armature non-latching COM 1 Analog Buses ABus1...

  • Page 117: 34921A D-Sub Connectors

    34921A D-Sub Connectors Bank 1 *TSIL represents Temperature Sensor Interface Line. This line is used for temperature interface only. GND 6H WARNING WARNING:: As a safety Description Pin feature, interlock 1 pins (17 and 33) on Bank 1 must be shorted to enable the Bank 1 Analog Bus relays to close.

  • Page 118: 34921T Terminal Block

    Low Frequency Multiplexer Switch Modules 34921T Terminal Block This terminal block with screw- type connections is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. N O TE The 34921T is the only terminal block that provides an isothermal block with temperature reference for thermocouple measurements.

  • Page 119: 34922A 70-Channel Armature Multiplexer

    34922A 70-Channel Armature Multiplexer The high- density 34922A 70- Channel Armature Multiplexer (70- Ch Arm MUX) is divided into two banks with 35 latching armature switches (channels 1- 35 and 36- 70) in each. This module also contains eight armature Analog Bus relays (channels 911- 914 and 921- 924), four on each bank that can connect the bank relays to the system Analog Buses.

  • Page 120: 34922A Simplified Schematic

    Low Frequency Multiplexer Switch Modules 34922A Simplified Schematic This drawing shows two independent 35- channel 2- wire MUXes. NOTE: The three-digit number assigned to each switch represents the channel number. NOTE: Bank relays: Armature latching Analog Bus relays: Armature non-latching 0 0 1 0 0 2 0 0 3...

  • Page 121: 34922A D-Sub Connectors

    34922A D-Sub Connectors Bank 1 GND 26H GND 32H Description Pin Description Pin WARN IN G 34980A User’s Guide Low Frequency Multiplexer Switch Modules Description Pin Description Pin As a safety feature, interlock 1 pins (39 and 59) on Bank 1 must be shorted to enable the Bank 1 Analog Bus relays to close.
  • Page 122 Low Frequency Multiplexer Switch Modules Bank 2 GND 61H GND 67H Description Pin Description Pin WARN IN G Description Pin Description Pin As a safety feature, interlock 2 pins (39 and 59) on Bank 2 must be shorted to enable the Bank 2 Analog Bus relays to close. the optional 34922T terminal block shorts these pins for you.

  • Page 123: 34922T Terminal Block

    34922T Terminal Block This terminal block with solder- type connections is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. N O TE The 34980A Product Reference CD (shipped with the instrument) contains a the 34922T Wiring Log for you to document your wiring configuration for this module.

  • Page 124: 34923A 40/80-Channel Reed Multiplexer

    Low Frequency Multiplexer Switch Modules 34923A 40/80-Channel Reed Multiplexer The 34923A 40/80- Channel Reed Multiplexer (40/80- Ch Reed MUX) is divided into two equal banks of non- latching reed switches. This module also contains eight armature Analog Bus relays (channels 911- 914 and 921- 924), four on each bank that can connect the bank relays to the system Analog Buses.
  • Page 125 Four-Wire Mode This 20- channel 4- wire MUX This configuration requires neither using external wiring nor connecting through the internal Analog Buses. For 4- wire resistance measurements, the instrument automatically pairs channel n on Bank 1 with channel n +20 (Bank 2) to provide the source and sense connections.

  • Page 126: 34923A Simplified Schematic For Two- Or Four-Wire Mode

    Low Frequency Multiplexer Switch Modules Lifetime of relays is severely degraded as current or voltage goes up. If higher voltage is being switched, limits on source current are recommended. When the power is off, all channel and Analog Bus relays open. 34923A Simplified Schematic for Two- or Four-Wire Mode This drawing shows two independent 20- channel 2- wire MUXes.
  • Page 127 NOTE: The three-digit number assigned to each switch represents the channel number. NOTE: Bank relays: Reed non-latching Analog Bus relays: Armature non-latching. COM 1 Analog Buses COM 2 34980A User’s Guide Low Frequency Multiplexer Switch Modules Bank 1 ABus1 ABus2 (MEAS) (SENS) Bank 2...

  • Page 128: 34923A D-Sub Connectors For Two- Or Four-Wire Mode

    Low Frequency Multiplexer Switch Modules 34923A D-Sub Connectors for Two- or Four-Wire Mode Bank 1 Reserved 11H 11L GND 6H WARNING:: WARNING As a safety Description Pin feature, interlock 1 pins (17 and 33) on Bank 1 must be shorted to enable the Bank 1 Analog Bus relays to close.

  • Page 129: 34923T-001 Terminal Block For Two- Or Four-Wire Mode

    34923T-001 Terminal Block for Two- or Four-Wire Mode This terminal block with screw- type connections is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. N O TE N O TE The 34980A Product Reference CD (shipped with the instrument)

  • Page 130: 34923A Simplified Schematic For One-Wire Mode

    Low Frequency Multiplexer Switch Modules 34923A Simplified Schematic for One-Wire Mode This drawing shows two independent 40- channel 1- wire MUXes. To change configuration modes, use the SYSTem:MODule:WIRE:MODE command. NOTE: The three-digit number assigned to each switch represents the channel number. NOTE: Bank relays: Reed non-latching Analog Bus relays: Armature non-latching...

  • Page 131: 34923A D-Sub Connectors For One-Wire Mode

    34923A D-Sub Connectors for One-Wire Mode Bank 1 Reserved WARNING WARNING:: As a safety Description feature, interlock 1 pins (17 and 33) on Bank 1 must be shorted to enable the Bank 1 Analog Bus relays to close. The optional 34923T-002 (for 1-wire) shorts these pins for you.

  • Page 132: 34923T-002 Terminal Block For One-Wire Mode

    Low Frequency Multiplexer Switch Modules 34923T-002 Terminal Block for One-Wire Mode This terminal block with screw- type connections is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. N O TE N O TE The 34980A Product Reference CD (shipped with the instrument)

  • Page 133: 34924A 70-Channel Reed Multiplexer

    34924A 70-Channel Reed Multiplexer The high- density 34924A 70- Channel Reed Multiplexer (70- Ch Reed MUX) is divided into two banks with 35 non- latching reed switches (channels 1- 35 and 36- 70) in each. This module also contains eight armature Analog Bus relays (channels 911- 914 and 921- 924), four on each bank that can connect the bank relays to the system Analog Buses.
  • Page 134 Low Frequency Multiplexer Switch Modules This module is interlock protected, which means whenever the D- sub connector end of the modules is exposed, the Analog Bus relays immediately open and disconnect from the Analog Bus. For more information, refer to Lifetime of relays is severely degraded as current or voltage goes up.

  • Page 135: 34924A Simplified Schematic

    34924A Simplified Schematic This drawing shows two independent 35- channel 2- wire MUXes. NOTE: The three-digit number assigned to each switch represents the channel number. NOTE: Bank relays: Reed non-latching Analog Bus relays: Armature non-latching COM 1 Analog Buses COM 2 34980A User’s Guide Low Frequency Multiplexer Switch Modules Bank 1...

  • Page 136: 34924A D-Connectors

    Low Frequency Multiplexer Switch Modules 34924A D-Connectors Bank 1 GND 26H GND 32H Description Pin Description Pin WARN IN G Description Pin Description Pin As a safety feature, interlock 1 pins (39 and 59) on Bank 1 must be shorted to enable the Bank 1 Analog Bus relays to close. The optional 34924T terminal block shorts these pins for you.
  • Page 137 Bank 2 GND 61H GND 67H Description Pin Description Pin WARN IN G 34980A User’s Guide Low Frequency Multiplexer Switch Modules Description Pin Description Pin As a safety feature, interlock 2 pins (39 and 59) on Bank 2 must be shorted to enable the Bank 2 Analog Bus relays to close.

  • Page 138: 34924T Terminal Block

    Low Frequency Multiplexer Switch Modules 34924T Terminal Block This terminal block with solder- type connections is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. N O TE The 34980A Product Reference CD (shipped with the instrument) contains a the 34924T Wiring Log for you to document your wiring...

  • Page 139: 34925A 40/80-Channel Optically-Isolated Fet Multiplexer

    34925A 40/80-Channel Optically-Isolated FET Multiplexer The 34925A 40/80- Channel Optically- Isolated FET Multiplexer (40/80- Ch FET MUX) module is a high- speed and high- density FET MUX for high throughput production test. This module is divided into two equal banks of non- latching FET switches.
  • Page 140 Low Frequency Multiplexer Switch Modules Four-Wire • one 20- channel 4- wire MUX. This configuration requires using neither external wiring nor connecting through the internal Analog Buses. For 4- wire resistance measurements, the instrument automatically pairs channel n on Bank 1 with channel n+20 (Bank 2) to provide the source and sense connections.
  • Page 141 • using the *RST command. This command resets the mainframe and all installed modules to the Factory configuration. This affects all installed modules. • cycling system power. This affects all installed modules. If the overvoltage situation is not resolved, clearing the overvoltage will result in a new overvoltage event occurring immediately.

  • Page 142: 34925A Simplified Schematic For Two- Or Four-Wire Mode

    Low Frequency Multiplexer Switch Modules 34925A Simplified Schematic for Two- or Four-Wire Mode This drawing shows two independent 20- channel 2- wire MUXes. To change configuration modes, use the SYSTem:MODule:WIRE:MODE command. NOTE: The three-digit number assigned to each switch represents the channel number. NOTE: Bank relays: FET non-latching Analog Bus relays: Armature non-latching...

  • Page 143: 34925A D-Sub Connectors For Two- Or Four-Wire Mode

    34925A D-Sub Connectors for Two- or Four-Wire Mode Bank 1 Reserved 11H 11L GND 6H WARNING WARNING: As a safety Description Pin feature, interlock 1 pins (17 and 33) on Bank 1 must be shorted to enable the Bank 1 Analog Bus relays to close.

  • Page 144: 34925T-001 Terminal Block For Two- Or Four-Wire Mode

    Low Frequency Multiplexer Switch Modules 34925T-001 Terminal Block for Two- or Four-Wire Mode This terminal block with screw- type connections is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. N O TE N O TE The 34980A Product Reference CD (shipped with the instrument)

  • Page 145: 34925A Simplified Schematic For One-Wire Mode

    34925A Simplified Schematic for One-Wire Mode This drawing shows two independent 40- channel, 1- wire MUXes. To change configuration modes, use the SYSTem:MODule:WIRE:MODE command. NOTE: The three-digit number assigned to each switch represents the channel number. NOTE: Bank relays: FET non-latching Analog Bus relays: Armature non-latching COM 1 Analog Buses...

  • Page 146: 34925A D-Sub Connectors For One-Wired Mode

    Low Frequency Multiplexer Switch Modules 34925A D-Sub Connectors for One-Wired Mode Bank 1 Reserved WARNING:: WARNING As a safety Description feature, interlock 1 pins (17 and 33) on Bank 1 must be shorted to enable the Bank 1 Analog Bus relays to close.

  • Page 147: 34925T-002 Terminal Block For One-Wire Mode

    34925T-002 Terminal Block for One-Wire Mode This terminal block with screw- type connections is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. N O TE N O TE The 34980A Product Reference CD (shipped with the instrument) contains a the 34925T (1- wire mode) Wiring Log for you to document...
  • Page 148 Low Frequency Multiplexer Switch Modules 34980A User’s Guide...

  • Page 149: Matrix Switch Modules

    Agilent 34980A Multifunction Switch/Measure Unit User’s Guide Matrix Switch Modules Matrix Switch Modules SCPI Programming Examples for the Matrix Modules Linking Multiple Matrix Modules 34931A Dual 4x8 Armature Matrix 34931T Terminal Block 34932A Dual 4x16 Armature Matrix 34932T Terminal Block...

  • Page 150: Matrix Switch Modules

    Matrix Switch Modules Matrix Switch Modules The matrix switch modules for the 34980A offer a convenient way for you to connect multiple instruments to multiple points on your DUT. For a lower cost and better specification alternative, you can connect both matrix and multiplexer (MUX) modules.

  • Page 151: Scpi Programming Examples For The Matrix Modules

    SCPI Programming Examples for the Matrix Modules The programming examples below provide you with SCPI command examples to use for actions specific to the matrix switch modules. The slot and channel addressing scheme used in these examples follow the general form sccc where s is the mainframe slot number (1 through 8) and ccc is the three- digit channel number.
  • Page 152 Matrix Switch Modules Opening and Closing Channels Example: Closing and opening matrix channels (34931A, 34932A, and 34933A in two-wire mode) The following commands close and open channels 311 and 312 through 315 of a 34932A matrix module in 2- wire mode. This module is in slot 3.
  • Page 153 Example: Querying channels for open or close state The following command returns a 1 (true) or 0 (false) state of channel 204 for a module in slot 3. ROUTe:CLOSe (@3204) ROUTe:CLOSe? (@3204) !Returns a 1 ROUTe:OPEN? (@3204) !Returns a 0 Configuring a Module Example: Configuring the 34933A module for 2-wire or 1-wire mode The following command configures a matrix module in slot 4 for 1- wire...

  • Page 154: Linking Multiple Matrix Modules

    Matrix Switch Modules Linking Multiple Matrix Modules You can link multiple matrix modules to form a larger matrix. The following two drawings show two- module connections through rows and columns. Wiring Multiple 34931A or 34932A Modules With a 34931A you can combine two matrices to form 8x8 (connecting columns) or 4x16 (connecting rows) configurations.
  • Page 155 Increase number of rows by connecting through columns 8 or 16 Columns *n can be 8 or 16 Increase number of columns by connecting through rows *n can be 8 or 16 34980A User’s Guide Module 1 n - 1 n - 1 Module 2 16 or 32 Columns...

  • Page 156: 34931A Dual 4X8 Armature Matrix

    Matrix Switch Modules 34931A Dual 4x8 Armature Matrix The 34931A dual 4x8 armature matrix contains two matrices, each with 32 2- wire crosspoint latching armature relays organized in a 4- row by 8- column configuration. Every row and column are made up of two wires each, a high (H) and a low (L).

  • Page 157: 34931A Simplified Schematic

    34931A Simplified Schematic Col 1 Row 1 Row 1 Row 2 Row 2 Row 3 Row 3 Row 4 Row 4 Col 1 Row 1 Row 2 Row 3 Row 4 NOTE: Although columns are numbered the same on the two matrices, they are electrically separate.

  • Page 158: 34931A D-Sub Connectors

    Matrix Switch Modules 34931A D-Sub Connectors Matrix 1 R4H R4L C5H C3L C1H C1L R3H R3L C6H C6L Matrix 2 R8H R8L C5H C3L C1H C1L R7H R7L C6H C6L WARNING:: As a safety feature, WARNING interlock pins (17 and 33) must be shorted to enable the Analog Bus relays, which are on Matrix 2, to close.

  • Page 159: 34931T Terminal Block

    34931T Terminal Block This terminal block with screw- type connections is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. N O TE The 34980A Product Reference CD (shipped with the instrument) contains a the 34931T Wiring Log for you to document your wiring configuration for this module.
  • Page 160 Matrix Switch Modules N O TE On the 34931T terminal block, only two sets of screw terminals are for use with the 34931A module. See the following drawing. When using the 34931T terminal block, be sure to wire your connections to the two sets of screw terminals closest to the 50-pin D-sub connectors.

  • Page 161: 34932A Dual 4X16 Armature Matrix

    34932A Dual 4x16 Armature Matrix The 34932A dual 4x16 armature matrix contains two matrices, each with 64 2- wire crosspoint latching armature relays organized in a 4- row by 16- column configuration. Every row and column are made up of two wires each, a high (H) and a low (L).

  • Page 162: 34932A Simplified Schematic

    Matrix Switch Modules 34932A Simplified Schematic Col 1 Col 2 Row 1 Row 2 Row 3 Row 4 Col 1 Row 1 Row 2 Row 3 Row 4 NOTE: Although columns are numbered the same on the two matrices, they are electrically separate.

  • Page 163: 34932A D-Sub Connectors

    34932A D-Sub Connectors Matrix 1 C12H C12L R4H R4L C5H C11H C11L C9H C9L C2H C3L C1H C1L R3H Description Pin Matrix 2 C4L C12H C12L R8H R8L C5H C11H C11L C9H C9L C2H C3L C1H C1L R7H WARNING WARNING:: As a safety Description Pin feature, interlock pins (17...

  • Page 164: 34932T Terminal Block

    Matrix Switch Modules 34932T Terminal Block This terminal block with screw- type connections is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. N O TE The 34980A Product Reference CD (shipped with the instrument) contains a the 34932T Wiring Log for you to document your wiring configuration for this module.

  • Page 165: 34933A Dual/Quad 4X8 Reed Matrix

    Matrix Switch Modules 34933A Dual/Quad 4x8 Reed Matrix Using program commands or the front panel of the 34980A, you can configure the 34933A dual/quad 4x8 reed matrix module for differential (2- wire) mode or single- ended (1- wire) mode. The 34933A module contains 100 in- rush resistors that are used to protect the reed relays from reactive loads.
  • Page 166 Matrix Switch Modules One-Wire Mode To physically configure the module in 1- wire mode, use the 34933T- 002 terminal block, or a compatible standard or custom cable. If using a standard or custom cable, make sure you connect interlock pins 17 and 33 on the Matrix 2 D- sub connector.

  • Page 167: 34933A Simplified Schematic For Two-Wire Mode

    34933A Simplified Schematic for Two-Wire Mode Col 1H Col 1L bypass bypass Row 1 Row 2 Row 3 Row 4 NOTE: Three-digit channel numbers are derived from the intersection of the rows and columns, columns having two digits. The intersection shown here represents Channel 308 (Row 3, Column 8).

  • Page 168: 34933A D-Sub Connectors For Two-Wire Mode

    Matrix Switch Modules 34933A D-Sub Connectors for Two-Wire Mode Matrix 1 bypass bypass bypass bypass bypass bypass Description Pin Description Pin Matrix 2 bypass bypass bypass bypass bypass bypass Description Pin WARNING WARNING:: As a safety feature, interlock pins (17 and 33) must be shorted to enable the Analog Bus relays, which are on Matrix...

  • Page 169: 34933T-001 Terminal Block For Two-Wire Mode

    34933T-001 Terminal Block for Two-Wire Mode This terminal block with screw- type connections is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. N O TE The 34980A Product Reference CD (shipped with the instrument) contains a the 34933T (2- wire) Wiring Log for you to document your wiring configuration for this module.
  • Page 170 Matrix Switch Modules When using the 34933T terminal block for 2- wire mode, access is provided to the bypass columns through the columns labeled C9 through C16. Follow this wiring convention shown in the table below for both matrices. Terminal marked... C10H C10L C11H...

  • Page 171: 34933A Simplified Schematic For One-Wire Mode

    34933A Simplified Schematic for One-Wire Mode bypass bypass Row 1 Row 2 Row 3 Row 4 NOTE: Three-digit channel numbers are derived from a specific matrix number and the intersection of rows and columns on that matrix. The channel shown here is 132 (Matrix 1, Row 3, Column 2.) bypass bypass...

  • Page 172: 34933A D-Sub Connectors For One-Wire Mode

    Matrix Switch Modules 34933A D-Sub Connectors for One-Wire Mode Matrices 1 and 2 bypass bypass bypass bypass NOTE: Conventions for these Description Pin Description Pin Description drawings and tables as they relate to pinout information: • 2R4 means Matrix 2, Row •...

  • Page 173: 34933T-002 Terminal Block For One-Wire Mode

    34933T-002 Terminal Block for One-Wire Mode This terminal block with screw- type connections is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. N O TE The 34980A Product Reference CD (shipped with the instrument) contains a the 34933T (1- wire) Wiring Log for you to document your wiring configuration for this module.
  • Page 174 Matrix Switch Modules 34980A User’s Guide...
  • Page 175 Agilent 34980A Multifunction Switch/Measure Unit User’s Guide General Purpose Switch Modules General Purpose Switch Modules 34937A and 34938A SCPI Programming Examples 34937A 32-Channel GP Switch 34937T Terminal Block 34938A 20-Channel High-Current GP Switch 34938T Terminal Block Agilent Technologies...

  • Page 176: General Purpose Switch Modules

    General Purpose Switch Modules General Purpose Switch Modules Use the general- purpose (GP) switch modules in your 34980A mainframe to route signals or control other system devices. • The 34937A 32- Channel Form C and Form A GP Switch Module provides independent control of 32 latching relays: •...
  • Page 177 After a five- to ten- second delay, remove the sheet metal cover from the module and move the position of the jumper mounted on the module. See the next drawing for the jumper’s location on the module. WARN IN G Open 34980A User’s Guide Do not connect either the 34937A or 34938A module directly to a...

  • Page 178: 34937A And 34938A Scpi Programming Examples

    General Purpose Switch Modules 34937A and 34938A SCPI Programming Examples The programming examples below provide you with SCPI command examples to use for actions specific to the general purpose switch modules. The slot and channel addressing scheme used in these examples follow the form sccc where s is the mainframe slot number (1 through 8) and ccc is the channel number.
  • Page 179 General Purpose Switch Modules Reading Cycle Count and Resetting Modules to Power-On State Example: Reading the cycle count for a relay (all switch modules) The following command returns the relay cycle count on channel 7 and channel 16 for a module in slot 1. DIAGnostic:RELay:CYCLes? (@1007,1016) Example: Clearing the cycle count for a relay (all switch modules) The following command resets the relay cycle count on channels 7 and 16 for...

  • Page 180: 34937A 32-Channel Gp Switch

    General Purpose Switch Modules 34937A 32-Channel GP Switch The 34937A general- purpose switch module provides independent control • Twenty- eight Form C (DPST) latching relays rated at 1 A • Four Form A (SPST) latching relays rated at 5 A. You can set the power- failure state for these 5 A relays.

  • Page 181: 34937A D-Sub Connectors

    34937A D-Sub Connectors Bank 1 Channel Channel 1 NC 4 NC 1 Common 25 4 Common 24 1 NO 4 NO 2 NC 5 NC 2 Common 29 5 Common 28 2 NO 5 NO 3 NC 6 NC 3 Common 21 6 Common 32 3 NO 6 NO...

  • Page 182: 34937T Terminal Block

    General Purpose Switch Modules 34937T Terminal Block This terminal block with screw- type connections is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. The 34980A Product Reference CD (shipped with the instrument) contains a the 34937T Wiring Log for you to document your wiring configuration for this module.

  • Page 183: 34938A 20-Channel High-Current Gp Switch

    34938A 20-Channel High-Current GP Switch The 34938A high- channel GP switch module provides twenty 5 A Form A relays for general purpose switching needs. You can set the power- failure state for these 5 A relays. See N O TE 34938A Simplified Schematic 34980A User’s Guide General Purpose Switch Modules...

  • Page 184: 34938A D-Sub Connectors

    General Purpose Switch Modules 34938A D-Sub Connectors Bank 1 Channel 1Common 1Common 2Common 2Common 3Common Bank 2 Channel 11NO 11Common 4 11NO 11Common 20 12NO 12Common 8 12NO 12Common 24 13NO 13Common 10 Reserved 1NO GND 6NO Channel Channel 3Common 5Common 4Common 6Common...

  • Page 185: 34938T Terminal Block

    34938T Terminal Block This terminal block with screw- type connections is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. The 34980A Product Reference CD (shipped with the instrument) contains a the 34938T Wiring Log for you to document your wiring configuration for this module.
  • Page 186 General Purpose Switch Modules 34980A User’s Guide...

  • Page 187: Rf Multiplexer Switch Modules

    Agilent 34980A Multifunction Switch/Measure Unit User’s Guide RF Multiplexer Switch Modules 34941A and 34942A RF Multiplexer Switch Modules Installing SMA Connectors Isolating Connector Banks 34941A and 34942A SCPI Programming Examples 34941A and 34942A Simplified Schematic Agilent Technologies...

  • Page 188: 34941A And 34942A Rf Multiplexer Switch Modules

    RF Multiplexer Switch Modules 34941A and 34942A RF Multiplexer Switch Modules The 34941A and 34942A Quad 1x4 RF MUX switch modules provide high density RF signal switching with four independent 1x4 multiplexer banks in each module. The important differences between the two RF MUX modules lie in their characteristic impedance and their use of connectors.

  • Page 189: Installing Sma Connectors

    Installing SMA Connectors When installing SMA connectors on the 34941A module, it is recommend that you tighten them to 0.8 - 1.1 Nm (7- 10 in- lbs) of torque. CAU T ION Isolating Connector Banks You can configure each bank on the RF MUX modules to be either isolated or chassis- grounded.

  • Page 190: 34941A And 34942A Scpi Programming Examples

    RF Multiplexer Switch Modules 34941A and 34942A SCPI Programming Examples The programming examples below provide you with SCPI command examples to use for actions specific to the RF MUX switch modules. The slot and channel addressing scheme used in these examples follow the form sccc where s is the mainframe slot number (1 through 8) and ccc is the channel number.

  • Page 191: 34941A And 34942A Simplified Schematic

    Example: Clearing the cycle count for a relay the cycle count on the channels 103 and 201 for a module in slot 1. DIAGnostic:RELay:CYCLes:CLEar (@1103,1201) Example: Resetting module to power-on state a module in slot 4 to its power- on state. SYSTem:CPON 4 34941A and 34942A Simplified Schematic Both the 34941A and 34942A modules are configured alike.
  • Page 192 RF Multiplexer Switch Modules 34980A User’s Guide...
  • Page 193 Agilent 34980A Multifunction Switch/Measure Unit User’s Guide Dual/Triple Microwave Switch Modules 34946A and 34947A Dual/Triple Microwave Switch Modules Installing SMA Connectors 34946A and 34947A SCPI Programming Examples 34946A and 34947A Simplified Schematics Agilent Technologies...

  • Page 194: Dual/Triple Microwave Switch Modules

    Dual/Triple Microwave Switch Modules 34946A and 34947A Dual/Triple Microwave Switch Modules The 34946A and 34947A modules offer single- pole, double- throw switches in either 4- GHz or 20- GHz options. The 34946A and 34947A modules do not connect to the analog buses. Instead, all connections are made through the visible SMA connectors via external cables.

  • Page 195: Installing Sma Connectors

    Dual/Triple Microwave Switch Modules Example: Querying the system for module identify The following command returns the identify of the module installed in slot 7. SYSTem:CTYPe? 7 Example: Reading the cycle count for a relay The following command reads back the number of completed cycles for the channel 201 relay of a module installed in slot 6.

  • Page 196: 34946A And 34947A Simplified Schematics

    Dual/Triple Microwave Switch Modules 34946A and 34947A Simplified Schematics The following drawings show the channel configuration for the 34946A and 34947A modules, respectively. 34980A User’s Guide...
  • Page 197 Agilent 34980A Multifunction Switch/Measure Unit User’s Guide 4-Channel Isolated D/A Converter with Waveform Memory Module 34951A 4-Channel Isolated D/A Converter with Waveform Memory Module 34951A SCPI Programming Examples 34951A Simplified Schematics 34951A D-Sub Connector Pinout 34951T Terminal Block Agilent Technologies...

  • Page 198: 4-Channel Isolated D/A Converter With Waveform Memory Module

    4-Channel Isolated D/A Converter with Waveform Memory Module 34951A 4-Channel Isolated D/A Converter with Waveform Memory Module The 34951A 4- Ch Isolated D/A module (DAC module) has four independent, isolated DAC channels that output DC voltage up to 16V or DC current up to 20 mA.
  • Page 199 The on- board memory provides storage for you to create up to 32 voltage or current waveforms. You can apply a different waveform to each channel to output. Or you can apply the same waveform to more than one channel. For each channel you can designate the gain, frequency, and/or offset for its output.
  • Page 200 4-Channel Isolated D/A Converter with Waveform Memory Module N O TE Auto- Calibration The 34951A features auto- calibration (auto- cal). Upon receipt of the CALibration:MODule? command, you can adjust all four channels of the DAC module. The adjustments, performed under complete control of the 34980A, require approximately one minute per module.

  • Page 201: 34951A Scpi Programming Examples

    4-Channel Isolated D/A Converter with Waveform Memory Module 34951A SCPI Programming Examples The programming examples below provide you with SCPI command examples to use for actions specific to the DAC module. The slot and channel addressing scheme used in these examples follow the form sccc where s is the mainframe slot number (1 through 8) and ccc is the three- digit channel number.
  • Page 202 4-Channel Isolated D/A Converter with Waveform Memory Module Example: Downloading trace points to memory and outputting waveform from DACs The following command segment downloads seven trace points to memory on the module in slot 4 and output the waveform from DAC channels 1 and 2. The trace name is "NEG_RAMP".
  • Page 203 4-Channel Isolated D/A Converter with Waveform Memory Module External Trigger Example: Selecting the external trigger source and issuing trigger source The following command segment enables the trigger output mode on a DAC module installed in slot 4, then enables the external trigger source on DAC channels 1 and 2.
  • Page 204 4-Channel Isolated D/A Converter with Waveform Memory Module Configuring a DAC Module Example: Querying the system for module identify (all modules) command returns the identify of the module installed in slot 7. SYSTem:CTYPe? 7 Example: Resetting the module(s) to power-on state The following command resets a module in slot 4 to its power- on state.

  • Page 205: 34951A Simplified Schematics

    34951A Simplified Schematics The following schematic shows how the module is generally configured. External Clock Out Enable Clock Out 16 Bits DAC 1 16 Bits DAC 2 16 Bits DAC 3 16 Bits DAC 4 34980A User’s Guide 4-Channel Isolated D/A Converter with Waveform Memory Module Internal to the 34951A Module External Trigger Out Enable Trigger Out...

  • Page 206: 34951A D-Sub Connector Pinout

    4-Channel Isolated D/A Converter with Waveform Memory Module The following diagram shows individual DAC channel configuration. All channels are configured the same. Each DAC is configured as shown in this drawing. Internal Clock Internal Trigger Immediate Data 16 Bits Waveform Memory Calibration constant in non-volatile memory...

  • Page 207: 34951T Terminal Block

    4-Channel Isolated D/A Converter with Waveform Memory Module 34951T Terminal Block Each terminal block is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. The 34980A Product Reference CD (shipped with the instrument) contains a the 34951T Wiring Log for you to document your wiring configuration for this module.
  • Page 208 4-Channel Isolated D/A Converter with Waveform Memory Module 34980A User’s Guide...

  • Page 209: Multifunction Module With Dio, D/A, And Totalizer

    Agilent 34980A Multifunction Switch/Measure Unit User’s Guide Multifunction Module with DIO, D/A, and Totalizer 34952A Multifunction Module 34952A SCPI Programming Examples 34952A Simplified Schematic 34952 D-Sub Connector 34952T Terminal Block Agilent Technologies...

  • Page 210: 34952A Multifunction Module

    Multifunction Module with DIO, D/A, and Totalizer 34952A Multifunction Module The 34952A Multifunction Module with DIO, D/A, and Totalizer combines four 8- bit ports of digital input/output, a 100 kHz totalizer, and two ±12 volt earth- referenced analog outputs. You can include digital inputs and totalizer input in a scan list.

  • Page 211: 34952A Scpi Programming Examples

    Multifunction Module with DIO, D/A, and Totalizer 34952A SCPI Programming Examples The programming examples below provide you with SCPI command examples to use for actions specific to the general purpose switch modules. The slot and channel addressing scheme used in these examples follow the form sccc where s is the mainframe slot number (1 through 8) and ccc is the channel number.
  • Page 212 Multifunction Module with DIO, D/A, and Totalizer The following command configures totalizer channel 5 on the Multifunction module in slot 2 to be reset to "0" after it is read (RRESet means “read and reset”). CONFigure:TOTalize RRES,(@2005) Example: Configuring the totalizer for count This command configures the totalizer to count on the rising edge (positive) or falling edge (negative) of the input signal.

  • Page 213: 34952A Simplified Schematic

    34952A Simplified Schematic Internal to the 34952A Module 32 Bits 16 Bits 16 Bits 34980A User’s Guide Multifunction Module with DIO, D/A, and Totalizer User-Supplied Connections Bit 0 Bit 7 Bit 8 Bit 15 Bit 16 Bit 23 Bit 24 Bit 31 Count + Totalizer...

  • Page 214: 34952 D-Sub Connector

    Multifunction Module with DIO, D/A, and Totalizer 34952 D-Sub Connector CNT - CNT + GND GATE GATE Description Bit 0 Bit 1 Bit 2 Bit 3 Channel 1 Channel 3 Bit 4 Bit 5 Bit 6 Bit 7 Bit 8 Bit 9 Bit 10 Bit 11...

  • Page 215: 34952T Terminal Block

    34952T Terminal Block Each terminal block is labeled with the model number and the abbreviated module name. In addition, space is available on the label for you to write the slot number. The 34980A Product Reference CD (shipped with the instrument) contains a the 34952T Wiring Log for you to document your wiring configuration for this module.

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