Agilent-technologies Switch/Measure Manual do Utilizador

Agilent TechnologiesAgilent 34980A Multifunction Switch/Measure UnitUser’s Guide

viii 34980A User’s Guide4 Low Frequency Multiplexer Switch ModulesLow Frequency Multiplexer Switch Modules 96Measurement Functions for the MUX Modules

88 34980A User’s Guide2 Features and Functions

89Agilent 34980A Multifunction Switch/Measure UnitUser’s GuideAgilent Technologies3Introduction to the Plug-In Modules for the 34980ASlot and Channel

90 34980A User’s Guide3 Introduction to the Plug-In Modules for the 34980ASlot and Channel Addressing SchemeThe eight module slots in the 34980A are a

Introduction to the Plug-In Modules for the 34980A 334980A User’s Guide 91Interconnection Solutions OverviewDepending upon your need, you can connect

92 34980A User’s Guide3 Introduction to the Plug-In Modules for the 34980AModule ConsiderationsThis section lists important items and actions that can

Introduction to the Plug-In Modules for the 34980A 334980A User’s Guide 93Electrical Operating Conditions34937A 28 channels, 300 V rms or DC, 1 A, 60

94 34980A User’s Guide3 Introduction to the Plug-In Modules for the 34980ATransients The 34921A, 34922A, 34923A, 34924A, 34925A, 34931A, 34932A, 34933

95Agilent 34980A Multifunction Switch/Measure UnitUser’s GuideAgilent Technologies4Low Frequency Multiplexer Switch ModulesLow Frequency Multiplexer S

96 34980A User’s Guide4 Low Frequency Multiplexer Switch ModulesLow Frequency Multiplexer Switch ModulesAll low frequency multiplexer (MUX) switch mod

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 97Measurement Functions for the MUX ModulesThe MUX modules support the DMM measurement

34980A User’s Guide ix5Matrix Switch ModulesMatrix Switch Modules 138SCPI Programming Examples for the Matrix Modules 139Linking Multiple Matrix Modul

98 34980A User’s Guide4 Low Frequency Multiplexer Switch ModulesSCPI Programming Examples for the MUX ModulesThe programming examples below provide yo

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 99Example: Closing and opening Analog Bus relays The following command connects the An

100 34980A User’s Guide4 Low Frequency Multiplexer Switch ModulesExample: Making current measurements The following command configures channel 43 for

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 101Example: Clearing the cycle count for a relay The following command resets the cycle

102 34980A User’s Guide4 Low Frequency Multiplexer Switch Modules34921A 40-Channel Armature Multiplexer with Low Thermal OffsetThe 34921A 40- Channel

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 103Low thermal offset voltage makes the 34921A ideal for low- level signal switching. T

104 34980A User’s Guide4 Low Frequency Multiplexer Switch Modules34921A Simplified SchematicThis drawing shows two independent 20- channel 2- wire MUX

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 10534921A D-Sub ConnectorsBank 1 Bank 2 For orientation, the D-sub connector end of th

106 34980A User’s Guide4 Low Frequency Multiplexer Switch Modules34921T Terminal BlockThis terminal block with screw- type connections is labeled with

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 10734922A 70-Channel Armature MultiplexerThe high- density 34922A 70- Channel Armature

x 34980A User’s Guide8 Dual/Triple Microwave Switch Modules34946A and 34947A Dual/Triple Microwave Switch Modules 18234946A and 34947A SCPI Programmin

108 34980A User’s Guide4 Low Frequency Multiplexer Switch Modules34922A Simplified Schematic This drawing shows two independent 35- channel 2- wire MU

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 10934922A D-Sub Connectors Bank 1For orientation, the D-sub connector end of the module

110 34980A User’s Guide4 Low Frequency Multiplexer Switch ModulesBank 2For orientation, the D-sub connector end of the module is facing you.Bank 2Bank

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 11134922T Terminal Block This terminal block with solder- type connections is labeled w

112 34980A User’s Guide4 Low Frequency Multiplexer Switch Modules34923A 40/80-Channel Reed MultiplexerThe 34923A 40/80- Channel Reed Multiplexer (40/8

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 113Four-Wire ModeThis 20- channel 4- wire MUX This configuration requires neither using

114 34980A User’s Guide4 Low Frequency Multiplexer Switch ModulesLifetime of relays is severely degraded as current or voltage goes up. If higher volt

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 115HHLHL0260270280290300310320330340350360370380390400210220230240250010020030040050060

116 34980A User’s Guide4 Low Frequency Multiplexer Switch Modules34923A D-Sub Connectors for Two- or Four-Wire ModeBank 1 Bank 2 For orientation, the

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 11734923T-001 Terminal Block for Two- or Four-Wire Mode This terminal block with screw-

1Agilent 34980A Multifunction Switch/Measure UnitUser’s GuideAgilent Technologies1Introduction to the 34980A Front Panel at a Glance 2Rear Panel at a

118 34980A User’s Guide4 Low Frequency Multiplexer Switch Modules34923A Simplified Schematic for One-Wire ModeThis drawing shows two independent 40- c

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 11934923A D-Sub Connectors for One-Wire ModeBank 1 Bank 2 For orientation, the D-sub co

120 34980A User’s Guide4 Low Frequency Multiplexer Switch Modules34923T-002 Terminal Block for One-Wire Mode This terminal block with screw- type conn

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 12134924A 70-Channel Reed MultiplexerThe high- density 34924A 70- Channel Reed Multiple

122 34980A User’s Guide4 Low Frequency Multiplexer Switch ModulesThis module is interlock protected, which means whenever the D- sub connector end of

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 12334924A Simplified SchematicThis drawing shows two independent 35- channel 2- wire MU

124 34980A User’s Guide4 Low Frequency Multiplexer Switch Modules34924A D-ConnectorsBank 1 For orientation, the D-sub connector end of the module is f

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 125Bank 2 For orientation, the D-sub connector end of the module is facing you.Bank 2Ba

126 34980A User’s Guide4 Low Frequency Multiplexer Switch Modules34924T Terminal Block This terminal block with solder- type connections is labeled wi

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 12734925A 40/80-Channel Optically-Isolated FET Multiplexer The 34925A 40/80- Channel Op

2 34980A User’s Guide1 Introduction to the 34980AFront Panel at a Glance 1On/Standby switch WARNINGss This switch is standby only. To disconnect the m

128 34980A User’s Guide4 Low Frequency Multiplexer Switch ModulesFour-Wire• one 20- channel 4- wire MUX. This configuration requires using neither ext

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 129• using the *RST command. This command resets the mainframe and all installed module

130 34980A User’s Guide4 Low Frequency Multiplexer Switch Modules34925A Simplified Schematic for Two- or Four-Wire ModeThis drawing shows two independ

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 13134925A D-Sub Connectors for Two- or Four-Wire ModeBank 1 Bank 2 For orientation, th

132 34980A User’s Guide4 Low Frequency Multiplexer Switch Modules34925T-001 Terminal Block for Two- or Four-Wire Mode This terminal block with screw-

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 13334925A Simplified Schematic for One-Wire ModeThis drawing shows two independent 40-

134 34980A User’s Guide4 Low Frequency Multiplexer Switch Modules34925A D-Sub Connectors for One-Wired ModeBank 1 Bank 2 For orientation, the D-sub co

Low Frequency Multiplexer Switch Modules 434980A User’s Guide 13534925T-002 Terminal Block for One-Wire Mode This terminal block with screw- type con

136 34980A User’s Guide4 Low Frequency Multiplexer Switch Modules

137Agilent 34980A Multifunction Switch/Measure UnitUser’s GuideAgilent Technologies5Matrix Switch ModulesMatrix Switch Modules 138SCPI Programming Exa

Introduction to the 34980A 134980A User’s Guide 3Rear Panel at a Glance1Access to Analog Buses (shown with cover installed). For pinout, see page 4.2M

138 34980A User’s Guide5 Matrix Switch ModulesMatrix Switch Modules The matrix switch modules for the 34980A offer a convenient way for you to connect

Matrix Switch Modules 534980A User’s Guide 139SCPI Programming Examples for the Matrix ModulesThe programming examples below provide you with SCPI co

140 34980A User’s Guide5 Matrix Switch ModulesOpening and Closing Channels Example: Closing and opening matrix channels (34931A, 34932A, and 34933A in

Matrix Switch Modules 534980A User’s Guide 141Example: Querying channels for open or close state The following command returns a 1 (true) or 0 (false

142 34980A User’s Guide5 Matrix Switch ModulesLinking Multiple Matrix ModulesYou can link multiple matrix modules to form a larger matrix. The followi

Matrix Switch Modules 534980A User’s Guide 14312341234123n*n - 1123n*n - 1*n can be 8 or 16 8 or 16 Columns8 RowsModule 1Module 2Increase number of r

144 34980A User’s Guide5 Matrix Switch Modules34931A Dual 4x8 Armature MatrixThe 34931A dual 4x8 armature matrix contains two matrices, each with 32 2

Matrix Switch Modules 534980A User’s Guide 14534931A Simplified SchematicHHLLH HHHHHHHLLLLLLLLLLLLHHHABus1DMM(MEAS)ABus2DMM(SENS)ABus3ABus49229239249

146 34980A User’s Guide5 Matrix Switch Modules34931A D-Sub ConnectorsMatrix 1Matrix 2For orientation, the D-sub connector end of the module is facing

Matrix Switch Modules 534980A User’s Guide 14734931T Terminal Block This terminal block with screw- type connections is labeled with the model number

4 34980A User’s Guide1 Introduction to the 34980ARear Panel Connector PinoutsExternal Trigger Input Connector (Male D-Sub)Analog Bus Connector (Female

148 34980A User’s Guide5 Matrix Switch ModulesNOTEOn the 34931T terminal block, only two sets of screw terminals are for use with the 34931A module. S

Matrix Switch Modules 534980A User’s Guide 14934932A Dual 4x16 Armature Matrix The 34932A dual 4x16 armature matrix contains two matrices, each with

150 34980A User’s Guide5 Matrix Switch Modules34932A Simplified Schematic HHLLHHHH HHLLLLLLLLLLHHHABus1DMM(MEAS)ABus2DMM(SENS)ABus3ABus4922923924921HL

Matrix Switch Modules 534980A User’s Guide 15134932A D-Sub ConnectorsMatrix 1 Matrix 2For orientation, the D-sub connector end of the module is facin

152 34980A User’s Guide5 Matrix Switch Modules34932T Terminal Block This terminal block with screw- type connections is labeled with the model number

Matrix Switch Modules 534980A User’s Guide 15334933A Dual/Quad 4x8 Reed MatrixUsing program commands or the front panel of the 34980A, you can config

154 34980A User’s Guide5 Matrix Switch ModulesOne-Wire ModeTo physically configure the module in 1- wire mode, use the 34933T- 002 terminal block, or

Matrix Switch Modules 534980A User’s Guide 15534933A Simplified Schematic for Two-Wire Mode Row 8Row 7Row 6922923924921HHHHLLLLC1LC1LbypassLC8HC8Hbyp

156 34980A User’s Guide5 Matrix Switch Modules34933A D-Sub Connectors for Two-Wire ModeMatrix 1Matrix 2For orientation, the D-sub connector end of the

Matrix Switch Modules 534980A User’s Guide 15734933T-001 Terminal Block for Two-Wire ModeThis terminal block with screw- type connections is labeled

Introduction to the 34980A 134980A User’s Guide 5Annunciator Display IndicatorsDisplay Indicator DefinitionLAN Communicating with the 34980A over LANU

158 34980A User’s Guide5 Matrix Switch ModulesWhen using the 34933T terminal block for 2- wire mode, access is provided to the bypass columns through

Matrix Switch Modules 534980A User’s Guide 15934933A Simplified Schematic for One-Wire Mode HHHHHH1C21C2bypass 1C81C8bypass1C11C1bypassLL2C8bypass2C8

160 34980A User’s Guide5 Matrix Switch Modules34933A D-Sub Connectors for One-Wire ModeMatrices 1 and 2Matrices 3 and 4For orientation, the D-sub conn

Matrix Switch Modules 534980A User’s Guide 16134933T-002 Terminal Block for One-Wire ModeThis terminal block with screw- type connections is labeled

162 34980A User’s Guide5 Matrix Switch Modules

163Agilent 34980A Multifunction Switch/Measure UnitUser’s GuideAgilent Technologies6General Purpose Switch ModulesGeneral Purpose Switch Modules 16434

164 34980A User’s Guide6 General Purpose Switch ModulesGeneral Purpose Switch Modules Use the general- purpose (GP) switch modules in your 34980A main

General Purpose Switch Modules 634980A User’s Guide 165After a five- to ten- second delay, remove the sheet metal cover from the module and move the

166 34980A User’s Guide6 General Purpose Switch Modules34937A and 34938A SCPI Programming ExamplesThe programming examples below provide you with SCPI

General Purpose Switch Modules 634980A User’s Guide 167Reading Cycle Count and Resetting Modules to Power-On StateExample: Reading the cycle count for

6 34980A User’s Guide1 Introduction to the 34980AFront Panel Menu ReferenceThis section gives an overview of the top two levels of menus that you acce

168 34980A User’s Guide6 General Purpose Switch Modules34937A 32-Channel GP SwitchThe 34937A general- purpose switch module provides independent contr

General Purpose Switch Modules 634980A User’s Guide 16934937A D-Sub ConnectorsBank 1Bank 2For orientation, the D-sub connector end of the module is fa

170 34980A User’s Guide6 General Purpose Switch Modules34937T Terminal Block This terminal block with screw- type connections is labeled with the mode

General Purpose Switch Modules 634980A User’s Guide 17134938A 20-Channel High-Current GP SwitchThe 34938A high- channel GP switch module provides twen

172 34980A User’s Guide6 General Purpose Switch Modules34938A D-Sub ConnectorsBank 1Bank 2Channel Pin Channel Pin Channel Pin Channel Pins Channel Pin

General Purpose Switch Modules 634980A User’s Guide 17334938T Terminal Block This terminal block with screw- type connections is labeled with the mode

174 34980A User’s Guide6 General Purpose Switch Modules

175Agilent 34980A Multifunction Switch/Measure UnitUser’s GuideAgilent Technologies7RF Multiplexer Switch Modules34941A and 34942A RF Multiplexer Swit

176 34980A User’s Guide7 RF Multiplexer Switch Modules34941A and 34942A RF Multiplexer Switch Modules The 34941A and 34942A Quad 1x4 RF MUX switch mod

RF Multiplexer Switch Modules 734980A User’s Guide 177Installing SMA ConnectorsWhen installing SMA connectors on the 34941A module, it is recommend t

Introduction to the 34980A 134980A User’s Guide 7Instrument Rack MountingUsing the optional Agilent Y1130A Rack Mount Kit, you can mount the 34980A in

178 34980A User’s Guide7 RF Multiplexer Switch Modules34941A and 34942A SCPI Programming ExamplesThe programming examples below provide you with SCPI

RF Multiplexer Switch Modules 734980A User’s Guide 179Example: Clearing the cycle count for a relay The following command resets the cycle count on

180 34980A User’s Guide7 RF Multiplexer Switch Modules

181Agilent 34980A Multifunction Switch/Measure UnitUser’s GuideAgilent Technologies8Dual/Triple Microwave Switch Modules34946A and 34947A Dual/Triple

182 34980A User’s Guide8 Dual/Triple Microwave Switch Modules34946A and 34947A Dual/Triple Microwave Switch ModulesThe 34946A and 34947A modules offer

Dual/Triple Microwave Switch Modules 834980A User’s Guide 183Example: Querying the system for module identify The following command returns the ident

184 34980A User’s Guide8 Dual/Triple Microwave Switch Modules34946A and 34947A Simplified SchematicsThe following drawings show the channel configurat

185Agilent 34980A Multifunction Switch/Measure UnitUser’s GuideAgilent Technologies94-Channel Isolated D/A Converter with Waveform Memory Module34951A

186 34980A User’s Guide9 4-Channel Isolated D/A Converter with Waveform Memory Module34951A 4-Channel Isolated D/A Converter with Waveform Memory Modu

4-Channel Isolated D/A Converter with Waveform Memory Module 934980A User’s Guide 187The on- board memory provides storage for you to create up to 32

8 34980A User’s Guide1 Introduction to the 34980A

188 34980A User’s Guide9 4-Channel Isolated D/A Converter with Waveform Memory ModuleAuto- CalibrationThe 34951A features auto- calibration (auto- cal

4-Channel Isolated D/A Converter with Waveform Memory Module 934980A User’s Guide 18934951A SCPI Programming ExamplesThe programming examples below p

190 34980A User’s Guide9 4-Channel Isolated D/A Converter with Waveform Memory ModuleExample: Downloading trace points to memory and outputting wavefo

4-Channel Isolated D/A Converter with Waveform Memory Module 934980A User’s Guide 191External TriggerExample: Selecting the external trigger source a

192 34980A User’s Guide9 4-Channel Isolated D/A Converter with Waveform Memory ModuleConfiguring a DAC ModuleExample: Querying the system for module i

4-Channel Isolated D/A Converter with Waveform Memory Module 934980A User’s Guide 19334951A Simplified SchematicsThe following schematic shows how th

194 34980A User’s Guide9 4-Channel Isolated D/A Converter with Waveform Memory ModuleThe following diagram shows individual DAC channel configuration.

4-Channel Isolated D/A Converter with Waveform Memory Module 934980A User’s Guide 19534951T Terminal Block Each terminal block is labeled with the mo

196 34980A User’s Guide9 4-Channel Isolated D/A Converter with Waveform Memory Module

197Agilent 34980A Multifunction Switch/Measure UnitUser’s GuideAgilent Technologies10Multifunction Module with DIO, D/A, and Totalizer34952A Multifunc

9Agilent 34980A Multifunction Switch/Measure UnitUser’s GuideAgilent Technologies2Features and FunctionsSCPI Language Conventions 10General Measuremen

198 34980A User’s Guide10 Multifunction Module with DIO, D/A, and Totalizer34952A Multifunction ModuleThe 34952A Multifunction Module with DIO, D/A, a

Multifunction Module with DIO, D/A, and Totalizer 1034980A User’s Guide 19934952A SCPI Programming ExamplesThe programming examples below provide you

200 34980A User’s Guide10 Multifunction Module with DIO, D/A, and TotalizerThe following command configures totalizer channel 5 on the Multifunction m

Multifunction Module with DIO, D/A, and Totalizer 1034980A User’s Guide 20134952A Simplified SchematicDIO32 BitsTotalizerCount +Count -Channel005Gat

202 34980A User’s Guide10 Multifunction Module with DIO, D/A, and Totalizer34952 D-Sub ConnectorBIT19BIT12BIT13BIT14BIT15GNDBIT20BIT21BIT18BIT17BIT16B

Multifunction Module with DIO, D/A, and Totalizer 1034980A User’s Guide 20334952T Terminal Block Each terminal block is labeled with the model number

10 34980A User’s Guide2 Features and FunctionsSCPI Language ConventionsThroughout this guide, the following conventions are used for SCPI command synt

Features and Functions 234980A User’s Guide 11The Analog Bus relays (numbered s911, s912, s913, etc.) on the multiplexer and matrix modules are igno

12 34980A User’s Guide2 Features and FunctionsGeneral Measurement ConfigurationThis section contains general information to help you configure the ins

Features and Functions 234980A User’s Guide 13• To view the readings in memory, use the View key (the readings are not erased when you read them). Eac

14 34980A User’s Guide2 Features and FunctionsFront Panel Operation:• To configure the measurement parameters and add a channel to the scan list, use

Features and Functions 234980A User’s Guide 15Analog BusesThe 34980A provides four 2- wire internal Analog Buses for easier signal routing. You can ro

16 34980A User’s Guide2 Features and FunctionsMeasurement FunctionsThe following table shows which DMM measurement functions are supported by each of

Features and Functions 234980A User’s Guide 17Measurement RangeYou can allow the instrument to automatically select the measurement range using autora

Notices© Agilent Technologies, Inc. 2004No part of this manual may be reproduced in any form or by any means (including electronic storage and retriev

18 34980A User’s Guide2 Features and FunctionsMeasurement ResolutionResolution is expressed in number of digits the internal DMM can measure or displa

Features and Functions 234980A User’s Guide 19The following command selects the 1 A range with 6½ digits of resolution on channel 2041 (current measur

20 34980A User’s Guide2 Features and Functions• The following table shows the relationship between integration time, measurement resolution, number of

Features and Functions 234980A User’s Guide 21AutozeroWhen autozero is enabled (default), the instrument internally disconnects the input signal follo

22 34980A User’s Guide2 Features and FunctionsTrigger DelayIn some applications, you want to allow the input to settle before taking a reading or for

Features and Functions 234980A User’s Guide 23Automatic Trigger DelaysIf you do not specify a trigger delay, the instrument selects a delay for you. T

24 34980A User’s Guide2 Features and FunctionsSafety InterlockThe Safety Interlock feature prevents connections to the Analog Buses if no terminal bl

Features and Functions 234980A User’s Guide 25User-Defined Channel LabelsYou can assign user- defined labels to any channel, including Analog Bus chan

26 34980A User’s Guide2 Features and FunctionsFront Panel Operation: Channel (Configure) > CHANNEL LABELTo define the channel label, press the arro

Features and Functions 234980A User’s Guide 272-Wire Versus 1-Wire ModeYou can configure the 34923A, 34925A, and 34933A modules for 2- wire (different

Additional Safety NoticesThe following general safety precautions must be observed during all phases of oper-ation of this instrument. Failure to comp

28 34980A User’s Guide2 Features and FunctionsAnalog Bus and Internal DMM ConsiderationsThis section provides important environmental and electrical c

Features and Functions 234980A User’s Guide 29Electrical Operating ConditionsTransients The Analog Buses and the optional internal DMM are designed to

30 34980A User’s Guide2 Features and FunctionsTemperature Measurement ConfigurationThis section contains information to help you configure the instrum

Features and Functions 234980A User’s Guide 31Thermocouple Measurements• The instrument supports the following thermocouple types: B, E, J, K, N, R, S

32 34980A User’s Guide2 Features and FunctionsFront Panel Operation: To select the thermocouple function on the active channel, choose the following i

Features and Functions 234980A User’s Guide 33RTD Measurements• The instrument supports RTDs with α = 0.00385 (DIN/IEC 751) using ITS- 90 software con

34 34980A User’s Guide2 Features and FunctionsThe following command sets the nominal resistance (R0) to 1000Ω on channel 1003.SENS:TEMP:TRAN:FRTD:RES

Features and Functions 234980A User’s Guide 35Voltage Measurement ConfigurationThis section contains information to help you configure the instrument

36 34980A User’s Guide2 Features and FunctionsAC Low Frequency FilterThe instrument uses three different ac filters which enable you to either optimiz

Features and Functions 234980A User’s Guide 37Resistance Measurement ConfigurationThis section contains information to help you configure the instrume

DECLARATION OF CONFORMITY According to ISO/IEC Guide 22 and CEN/CENELEC EN 45014 Template: A5971-5302-2, Rev. B.00 34980A-DoC-A DoC Revision A

38 34980A User’s Guide2 Features and FunctionsCurrent Measurement ConfigurationThis section contains information to help you configure the instrument

Features and Functions 234980A User’s Guide 39Frequency Measurement ConfigurationThis section contains information to help you configure the instrumen

40 34980A User’s Guide2 Features and FunctionsMx+B ScalingThe scaling function allows you to apply a gain and offset to readings during a scan or whil

Features and Functions 234980A User’s Guide 41• The CONFigure and MEASure? commands automatically set the gain (“M”) to 1 and offset (“B”) to 0.• A F

42 34980A User’s Guide2 Features and FunctionsScanningThe instrument allows you to combine a DMM (either internal or external) with multiplexer channe

Features and Functions 234980A User’s Guide 43• The Analog Bus relays are automatically opened and closed as required during the scan to connect to th

44 34980A User’s Guide2 Features and Functions• At the end of the scan, the last channel that was scanned will be opened (as well as any Analog Bus re

Features and Functions 234980A User’s Guide 45• To initiate a scan and store all readings in memory, press Scan (Measure). Each time you initiate a ne

46 34980A User’s Guide2 Features and FunctionsScan Trigger SourceYou can configure the event or action that controls the onset of each sweep through t

Features and Functions 234980A User’s Guide 47• The instrument sets the scan interval to immediate (0 seconds) after a Factory Reset (*RST command). A

48 34980A User’s Guide2 Features and FunctionsRemote Interface Operation: The following program segment configures the instrument for a manual scannin

Features and Functions 234980A User’s Guide 49Front Panel Operation: Scan (Configure) > INTERVAL > EXTERNALTo initiate the scan and store all re

50 34980A User’s Guide2 Features and FunctionsSweep CountThe sweep count sets the number of sweeps per trigger event during a scan (a sweep is one pas

Features and Functions 234980A User’s Guide 51Sample CountThe sample count sets the number of auto- triggered samples the internal DMM will take per c

52 34980A User’s Guide2 Features and Functions• For scanning, the specified sample count sets the number of readings per channel (same for all channel

Features and Functions 234980A User’s Guide 53Channel DelayYou can control the pacing of a scan sweep by inserting a delay between multiplexer channel

54 34980A User’s Guide2 Features and Functions• To ensure you are getting the most accurate measurements possible, use care when setting the channel d

Features and Functions 234980A User’s Guide 55AC Voltage, AC Current (for all ranges):Frequency, Period:Digital Input, Totalize:Front Panel Operation:

56 34980A User’s Guide2 Features and FunctionsReading FormatDuring a scan, the instrument automatically adds a time stamp to all readings and stores t

Features and Functions 234980A User’s Guide 57Remote Interface Operation: Use the following commands to select the reading format. FORMat:READing:ALAR

34980A User’s Guide vContents1 Introduction to the 34980AFront Panel at a Glance 2Rear Panel at a Glance 3Rear Panel Connector Pinouts 4External Trigg

58 34980A User’s Guide2 Features and Functions• The scan order setting is stored in volatile memory and the ordered mode will be enabled when power is

Features and Functions 234980A User’s Guide 59Front Panel Operation: View > READINGSRemote Interface Operation: The following command retrieves sto

60 34980A User’s Guide2 Features and FunctionsMonitor ModeIn the Monitor mode, the instrument takes readings as often as it can on a single channel or

Features and Functions 234980A User’s Guide 61Front Panel Operation: DMM or Channel (Measure)For channel monitoring, turn the knob to the desired chan

62 34980A User’s Guide2 Features and FunctionsSystem-Related OperationsThis section gives information on system- related topics such as instrument sta

Features and Functions 234980A User’s Guide 63Product Firmware UpdatesAs new product features and enhancements become available, you can easily update

64 34980A User’s Guide2 Features and FunctionsFront Panel Operation: Store/Recall > STORE|RECALL|DELETE|RENAME|AUTOTo rename a location, select REN

Features and Functions 234980A User’s Guide 65• Errors are retrieved in first- in- first- out (FIFO) order. The first error returned is the first erro

66 34980A User’s Guide2 Features and FunctionsSelf-TestA power- on self- test occurs automatically when you turn on the instrument. This limited test

Features and Functions 234980A User’s Guide 67• You can display a message on the front panel by sending a command from the remote interface. The instr

vi 34980A User’s GuideTemperature Measurement Configuration 30Measurement Units 30Thermocouple Measurements 31RTD Measurements 33Thermistor Measuremen

68 34980A User’s Guide2 Features and FunctionsReal-Time System ClockDuring a scan, the instrument stores all readings and alarms with the current time

Features and Functions 234980A User’s Guide 69Remote Interface Operation: To read the count on either the specified internal DMM relay or module chan

70 34980A User’s Guide2 Features and FunctionsCalibration OverviewThis section gives a brief introduction to the calibration features of the instrumen

Features and Functions 234980A User’s Guide 71To Secure the Instrument for CalibrationYou can secure the instrument either from the front panel or ove

72 34980A User’s Guide2 Features and FunctionsCalibration CountYou can query the instrument to determine how many calibrations have been performed on

Features and Functions 234980A User’s Guide 73Calibration MessageThe instrument allows you to store one message in calibration memory in the mainframe

74 34980A User’s Guide2 Features and FunctionsRemote Interface ConfigurationThis section gives information on configuring the instrument for remote in

Features and Functions 234980A User’s Guide 75GPIB InterfaceEach device on the GPIB (IEEE-488) interface must have a unique address. You can set the i

76 34980A User’s Guide2 Features and Functions34980A Web Browser InterfaceThe Agilent 34980A provides a Web Interface which is built into the instrume

Features and Functions 234980A User’s Guide 77DHCPDHCP (Dynamic Host Configuration Protocol) is a protocol for automatically assigning a dynamic IP ad

34980A User’s Guide viiSystem-Related Operations 62Firmware Revision 62Product Firmware Updates 63Instrument State Storage 63Error Conditions 64Self-T

78 34980A User’s Guide2 Features and Functions• Dot- notation addresses (“nnn.nnn.nnn.nnn” where “nnn” is a byte value) must be expressed with care, a

Features and Functions 234980A User’s Guide 79Front Panel Operation:Utility > REMOTE I/O > LAN > LAN SETTINGS > MODIFY > DHCP OFF >

80 34980A User’s Guide2 Features and FunctionsFront Panel Operation:Utility > REMOTE I/O > LAN > LAN SETTINGS > MODIFY > DHCP OFF >

Features and Functions 234980A User’s Guide 81Front Panel Operation:Utility > REMOTE I/O > LAN > LAN SETTINGS > MODIFY > DHCP OFF >

82 34980A User’s Guide2 Features and FunctionsDNS ServerThe Domain Name Service (DNS) is an Internet service that translates Domain names into IP addr

Features and Functions 234980A User’s Guide 83Domain NameA domain name is a registered name on the Internet, which is translated into an IP address. T

84 34980A User’s Guide2 Features and FunctionsFactory Reset StateThe following tables show the state of the instrument after a *RST or SYSTem:CPON com

Features and Functions 234980A User’s Guide 85Module Hardware Factory Reset StateMultiplexer ModulesMatrix ModulesGP ModulesRF ModulesMicrowave Module

86 34980A User’s Guide2 Features and FunctionsInstrument Preset StateThe following tables show the state of the instrument after a SYSTem:PRESet comma

Features and Functions 234980A User’s Guide 87Module Hardware Preset StateMultiplexer ModulesMatrix ModulesGP ModulesRF ModulesMicrowave ModulesSystem