Benutzerhandbuch für VXi VT1422A

Inhaltsverzeichnis

• Preface

  1
  • Safety Symbols

    4
  • VXI TECHNOLOGY WARRANTY STATEMENT

    3
  • U.S. Government Restricted Rights

    3
  • WARNINGS

    4
  • Note for European Customers

    4
  • Contents

    9
  • Support Resources

    21
• Chapter 1 Getting Started

  23
  • About this Chapter

    23
  • Configuring the VT1422A

    23
    • Setting the Logical Address Switch

      24
    • Installing Signal Conditioning Plug-Ons

      25
    • Disabling the Input Protect Feature (Optional)

      29
    • Disabling Flash Memory Access (Optional)

      29
  • Installing the Module

    31
  • Instrument Drivers

    31
  • About Example Programs

    31
    • Examples on CD

      31
    • Example Command Sequences

      31
    • Typical Example program

      31
  • Verifying a Successful Configuration

    32
• Chapter 2 Field Wiring

  35
  • About This Chapter

    35
  • Planning the Wiring Layout

    35
    • SCP Positions and Channel Numbers

      35
    • Sense SCPs and Output SCPs

      37
    • Planning for Thermocouple Measurements

      38
  • Faceplate Connector Pin-Signal Lists

    39
  • Optional Terminal and Connector Modules

    40
    • The SCPs and Terminal Module

      40
    • Terminal Module Layout

      40
    • The RJ-45 Connector Module

      41
    • Spring Terminal Module Layout

      41
    • Screw Terminal Module Layout

      43
  • Reference Temperature Sensing with the VT1422A

    44
    • Terminal Module Considerations for TC Measurements

      45
  • Preferred Measurement Connections

    46
  • Connecting the On-Board Thermistor

    49
  • Wiring and Attaching the Terminal Module

    50
  • Removing the VT1422A Terminal Modules

    52
  • Attaching and Removing the VT1422A RJ-45 Module

    53
  • Adding Components to the Terminal Module

    54
  • Spring and Screw Terminal Module Wiring Maps

    55
• Chapter 3 Programming the VT1422A & VT1529A/B for Remote Strain Measurement

  59
  • About This Chapter

    59
  • Instrument Setup for Remote Strain Measurements

    60
    • Preparing the VT1422A for Installation

      60
    • Overview

      60
    • Preparing the VT1529A/B for Use

      61
    • Installing User Selected 1/4 Bridge Resistors (Optional)

      61
      • Removing the Top Cover

        61
      • Locating Resistors

        63
      • Installing Resistors

        63
    • Connecting VT1529A/Bs to the VT1422A

      64
      • Cabling Supplies and Tools

        64
    • Two Interconnect Methods

      65
      • The Option 001 RJ-45 Connector Module

        65
      • Spring and Screw Terminal Modules

        66
      • Example Terminal Module to VT1529A/B Connection

        68
    • Connecting Excitation Supplies

      69
  • Connecting the VT1529A/B to Strain Gages

    71
    • Channel Connector Pin-to-Signal Relationship

      71
  • VT1529A/B Bridge Configurations

    72
    • The Quarter Bridge configuration

      72
    • The Half Bridge configuration

      73
    • The Full Bridge configuration

      74
  • Connecting to the VT1529A/Bs Dynamic Strain Ports

    75
    • Extending the Dynamic Strain Connection

      75
    • Dynamic Strain Port Offset Control

      77
  • Remote Strain Channel Addressing

    78
    • Runtime Remote Scan Verification

      78
  • Programming for Remote Strain Measurement

    80
    • Power-on and *RST Configuration

      80
    • Description of Strain Measurement

      80
      • CALibration First

        80
      • Measure Strain Using Built-in Strain EU Conversion

        81
      • Built-in EU Conversion Command Sequence

        84
      • Measure Strain Using User Specified EU Conversion

        85
      • Custom EU Conversion Command Sequence

        87
      • Measure Bridge Voltages and Convert to Strain

        88
      • Voltage Conversion Command Sequence

        90
  • Verifying Correct Bridge Completion (Shunt Cal)

    92
  • Built-in Strain Conversion Equations

    94
    • Full Bridge Equation (bridge_type=FBEN)

      94
    • Half Bridge Equation (bridge_type=HBEN)

      94
    • Quarter Bridge Equation (bridge_type=Q120, Q350 or USER)

      94
• Chapter 4 Programming the VT1422A for Data Acquisition and Control

  97
  • About This Chapter

    97
  • Overview of the VT1422A Multifunction DAC Module

    98
    • Multifunction DAC?

      99
      • Flexible Signal Conditioning for Input and Output

        99
      • Remote Multiplexing and Signal Conditioning

        99
      • Programmable Signal Conditioning and EU Conversion

        100
      • Scan List and/or C Language Control Programming

        100
      • Runtime Remote Scan Verification

        100
    • Operational Overview

      100
      • Acquire Input Values

        100
      • Start Algorithms

        101
      • Communicating with Algorithms

        101
      • Algorithms Control Output Values

        101
    • Detailed Instrument Operation Cycle

      102
  • Programming Model

    104
  • Executing the Programming Model

    106
    • Power-on and *RST Default Settings

      106
  • Setting up Analog Input and Output Channels

    109
    • Configuring Programmable Analog SCP Parameters

      109
      • Setting SCP Gains

        109
      • Setting Filter Cutoff Frequency

        110
      • Setting the VT1505A Current Source SCP and VT1518A Resistance Measurement SCP

        110
      • Setting the VT1511A Strain Bridge SCP Excitation Voltage

        111
    • Linking Input Channels to EU Conversion

      111
      • Linking Voltage Measurements

        112
      • Linking Resistance Measurements

        113
      • Linking Temperature Measurements

        114
      • Linking Strain Measurements

        118
      • Custom EU Conversions

        119
    • Linking Output Channels to Functions

      119
  • Setting Up Digital Input and Output Channels

    120
    • Setting Up Digital Inputs

      120
      • Setting Input Polarity

        120
      • Setting Input Function

        120
    • Setting Up Digital Outputs

      121
      • Setting Output Polarity

        121
      • Setting Output Drive Type

        122
      • Setting Output Functions

        122
  • Performing Channel Calibration (Important!)

    124
    • Calibrating the VT1422A

      124
      • Operation and Restrictions

        124
      • How to Use *CAL?

        124
      • What *CAL? Does

        124
      • Re-Execute *CAL? When:

        125
    • Calibrating Remote Signal Conditioning Units

      125
  • Defining an Analog Input Scan List (ROUT:SEQ:DEF)

    125
    • Controlling Scan List Data Destination

      126
  • Defining C Language Algorithms

    127
    • Global Variable Definition

      128
    • Algorithm Definition

      128
    • Pre-setting Algorithm Variables

      128
  • Defining Data Storage

    129
    • Specifying the Data Format

      129
    • Selecting the FIFO Mode

      130
  • Setting up the Trigger System

    131
    • Arm and Trigger Sources

      131
      • Selecting the Trigger Source

        131
      • Selecting Trigger Timer Arm Source

        132
    • Programming the Trigger Timer

      133
    • Setting the Trigger Counter

      133
    • Sending Trigger Signals to Other Instruments

      133
  • INITiating the Module/Starting Scanning and Algorithms

    134
    • Starting Scanning and/or Algorithms

      134
    • The Operating Sequence

      135
  • Reading Running Algorithm Values

    136
    • Reading CVT Data

      136
    • Reading FIFO Data

      137
    • Which FIFO Mode?

      137
    • Reading Algorithm Variables Directly

      139
  • Modifying Running Algorithm Variables

    140
    • Updating Algorithm Variables and Coefficients

      140
    • Enabling and Disabling Algorithms

      140
    • Setting Algorithm Execution Frequency

      141
  • Example SCPI Command Sequence

    141
  • Example VXIplug&play Driver Function Sequence

    142
  • Using the Status System

    144
    • Enabling Events to be Reported in the Status Byte

      147
      • Configuring the Transition Filters

        147
      • Configuring the Enable Registers

        148
    • Reading the Status Byte

      148
    • Clearing the Enable Registers

      149
    • The Status Byte Group’s Enable Register

      149
    • Reading Status Groups Directly

      150
      • Reading Event Registers

        150
      • Clearing Event Registers

        150
      • Reading Condition Registers

        150
  • VT1422A Background Operation

    150
  • Updating the Status System and VXIbus Interrupts

    151
  • Creating and Loading Custom EU Conversion Tables

    152
    • Standard EU Operation

      152
    • Custom EU Operation

      152
    • Custom EU Tables

      152
    • Custom Thermocouple EU Conversions

      153
    • Custom Reference Temperature EU Conversions

      153
    • Creating Conversion Tables

      153
    • Loading Custom EU Tables

      153
    • Summary

      154
  • Compensating for System Offsets

    155
    • System Wiring Offsets

      155
    • Residual Sensor Offsets

      155
    • Operation

      155
    • Resetting CAL:TARE

      156
    • Special Considerations

      156
      • Maximum Tare Capability

        156
      • Changing Gains or Filters

        157
      • Unexpected Channel Offsets or Overloads

        157
  • Detecting Open Transducers

    157
  • More On Auto Ranging

    158
  • Settling Characteristics

    159
    • Background

      159
    • Checking for Problems

      159
    • Fixing the Problem

      160
      • Use Amplifier SCPs

        160
      • Adding Settling Delay for Specific Channels

        161
• Chapter 5 Advanced Programming with the VT1529B

  163
  • About This Chapter

    163
  • Additional Capabilities of the VT1529B

    163
  • Changes to the Use Model

    164
    • Engineering Units Conversion Done in VXIplug&play Driver

      164
    • Must Count writefifo Calls in Algorithms

      165
    • New SCPI Commands

      165
  • Strain Measurements

    166
    • Field Wiring for Excitation Measurements

      167
    • Strain Measurement Command Sequence

      167
    • Strain Conversion Sequence

      169
    • Alternate Method of Computing Strain

      170
  • Temperature Measurements

    172
    • Connecting the VT1586A to the VT1529B

      172
    • Field Wiring of the VT1586A

      174
    • Temperature Measurement Command Sequence

      176
    • Temperature Conversion Sequence

      177
  • Voltage Measurements

    177
    • Field Wiring for dc Voltage Measurements

      178
      • Low-Level Inputs

        178
      • High-Level Inputs

        178
    • DCV Measurement Command Sequence

      179
    • DCV Measurement Sequence

      180
  • Settling Time Considerations

    180
• Chapter 6 Creating and Running Algorithms

  183
  • About This Chapter

    183
  • Overview of the Algorithm Language

    184
    • Example Language Usage

      185
  • The Algorithm Execution Environment

    186
    • The Main Function

      186
    • How User Algorithms Fit In

      186
  • Accessing the VT1422A's Resources

    187
    • Accessing I/O Channels

      188
      • Defined Input and Output Channels

        189
    • Accessing Remote Scan Status Variables

      189
    • Runtime Remote Scan Verification

      189
      • Runtime Scan States

        190
      • Algorithm Language Support

        190
      • Operating Model

        190
      • Example Scan Verification Algorithms

        191
      • Timing Impact

        191
    • Defining and Accessing Global Variables

      192
    • Determining First Execution (First_loop)

      192
    • Initializing Variables

      193
    • Sending Data to the CVT and FIFO

      193
    • Setting a VXIbus Interrupt

      194
    • Determining An Algorithm's Identity (ALG_NUM)

      195
    • Calling User Defined Functions

      195
  • Operating Sequence

    196
    • Overall Sequence

      196
      • A Common Error to Avoid

        196
    • Algorithm Execution Order

      196
  • Defining Algorithms (ALG:DEF)

    198
    • ALG:DEFINE in the Programming Sequence

      198
    • ALG:DEFINE's Three Data Formats

      198
    • Changing a Running Algorithm

      199
      • Defining an Algorithm for Swapping

        199
      • How Does it Work?

        200
      • Determining an Algorithm's Size

        200
  • A Very Simple First Algorithm

    202
    • Writing the Algorithm

      202
    • Running the Algorithm

      202
  • Modifying an Example PID Algorithm

    202
    • PIDA with Digital On-Off Control

      202
      • How the Example PIDA Operates

        203
      • Modifying the Example PIDA

        203
  • Algorithm to Algorithm Communication

    203
    • Communication Using Channel Identifiers

      203
      • Implementing Multivariable Control

        204
    • Communication Using Global Variables

      204
      • Implementing Feed Forward Control

        204
  • Non-Control Algorithms

    206
    • Process Monitoring Algorithm

      206
  • Implementing Setpoint Profiles

    207
  • Algorithm Language Reference

    209
    • Standard Reserved Keywords

      209
    • Special VT1422A Reserved Keywords

      209
    • Identifiers

      209
    • Special Identifiers for Channels

      210
    • Special Identifiers for Remote Scan Status

      210
    • Operators

      210
      • Assignment Operator

        210
      • Arithmetic Operators

        210
      • Unary Operators

        210
      • Comparison Operators

        211
      • Logical Operators

        211
      • Unary Logical Operator

        211
    • Intrinsic Functions and Statements

      211
    • Program Flow Control

      212
      • Conditional Constructs

        212
      • Exiting the Algorithm

        212
    • Data Types

      212
      • The Static Modifier

        213
    • Data Structures

      213
    • Bitfield Access

      214
      • Declaration Initialization

        215
      • Global Variables

        215
  • Language Syntax Summary

    215
  • Program Structure and Syntax

    219
    • Declaring Variables

      219
    • Assigning Values

      219
    • The Operations Symbols

      220
      • The Arithmetic Operators

        220
      • Unary Arithmetic Operator

        220
      • The Comparison Operators

        220
      • The Logical Operators

        220
    • Conditional Execution

      220
    • Comment Lines

      222
    • Overall Program Structure

      223
• Chapter 7 VT1422A Command Reference

  225
  • Using This Chapter

    225
  • Overall Command Index

    225
  • Command Fundamentals

    231
    • Common Command Format

      231
    • SCPI Command Format

      231
      • Command Separator

        231
      • Abbreviated Commands

        231
      • Implied Commands

        232
      • Variable Command Syntax

        232
      • Parameters

        232
    • Linking Commands

      236
    • Data Types

      237
  • SCPI Command Reference

    237
  • ABORt

    238
    • Subsystem Syntax

      238
    • Comments

      238
    • Usage

      238
  • ALGorithm

    239
    • Subsystem Syntax

      239
    • ALGorithm[:EXPLicit]:ARRay

      239
      • Parameters

        240
      • Comments

        240
      • Usage

        240
    • ALGorithm[:EXPLicit]:ARRay?

      241
      • Parameters

        241
      • Comments

        241
    • ALGorithm[:EXPLicit]:DEFine

      241
      • Parameters

        241
      • Comments

        241
      • When accepted and Usage

        244
    • ALGorithm[:EXPLicit]:SCALar

      246
      • Parameters

        246
      • Comments

        246
      • Usage

        246
    • ALGorithm[:EXPLicit]:SCALar?

      247
      • Parameters

        247
      • Comments

        247
    • ALGorithm[:EXPLicit]:SCAN:RATio

      247
      • Parameters

        247
      • Comments

        248
      • Usage

        248
    • ALGorithm[:EXPLicit]:SCAN:RATio?

      248
      • Comments

        248
    • ALGorithm[:EXPLicit]:SIZE?

      248
      • Parameters

        248
      • Comments

        248
    • ALGorithm[:EXPLicit][:STATe]

      249
      • Parameters

        249
      • Comments

        249
      • Usage

        250
    • ALGorithm[:EXPLicit][:STATe]?

      250
      • Parameters

        250
      • Comments

        250
    • ALGorithm[:EXPLicit]:TIME?

      250
      • Parameters

        250
      • Comments

        250
    • ALGorithm:FUNCtion:DEFine

      251
      • Parameters

        251
      • Comments

        251
      • Usage

        252
    • ALGorithm:OUTPut:DELay

      252
      • Parameters

        252
      • Comments

        252
    • ALGorithm:OUTPut:DELay?

      253
      • Comments

        253
    • ALGorithm:UPDate[:IMMediate]

      254
      • Comments

        254
      • Command Sequence

        254
    • ALGorithm:UPDate:CHANnel

      255
      • Parameters

        255
      • Comments

        255
      • Command Sequence

        256
    • ALGorithm:UPDate:WINDow

      256
      • Parameters

        256
      • Comments

        256
      • Usage

        256
    • ALGOrithm:UPDate:WINDow?

      257
  • ARM

    258
    • Subsystem Syntax

      259
    • ARM[:IMMediate]

      259
      • Comments

        259
      • Usage

        259
    • ARM:SOURce

      259
      • Parameters

        259
      • Comments

        259
      • Usage

        260
    • ARM:SOURce?

      260
      • Usage

        260
  • CALCulate

    261
    • Subsystem Syntax

      261
    • CALCulate:TEMPerature:THERmistor?

      261
      • Parameters

        261
      • Comments

        261
      • Usage

        262
    • CALCulate:TEMPerature:TCouple?

      262
      • Parameters

        262
      • Comments

        262
      • Usage

        262
  • CALibration

    264
    • Subsystem Syntax

      265
    • CALibration:CONFigure:RESistance

      265
      • Comments

        266
      • Command Sequence

        266
    • CALibration:CONFigure:VOLTage

      266
      • Parameters

        266
      • Comments

        266
      • Command Sequence

        267
    • CALibration:REMote?

      267
      • Parameters

        267
      • Comments

        267
    • CALibration:REMote:DATA

      268
      • Parameters

        268
      • Comments

        268
    • CALibration:REMote:DATA?

      269
      • Comments

        269
    • CALibration:REMote:STORe

      269
      • Parameters

        269
      • Comments

        269
    • CALibration:SETup

      270
      • Comments

        270
      • Usage

        270
    • CALibration:SETup?

      270
      • Comments

        270
      • Usage

        271
    • CALibration:STORe

      271
      • Parameters

        271
      • Comments

        271
      • Usage

        271
      • Command Sequence

        272
    • CALibration:TARE

      272
      • Parameters

        273
      • Comments

        273
      • Command Sequence

        274
    • CALibration:TARE:RESet

      274
      • Command Sequence

        274
    • CALibration:TARE?

      275
      • Command Sequence

        275
    • CALibration:VALue:RESistance

      275
      • Parameters

        275
      • Comments

        275
      • Command Sequence

        276
    • CALibration:VALue:VOLTage

      276
      • Parameters

        276
      • Comments

        276
      • Command Sequence

        277
    • CALibration:ZERO?

      277
      • Comments

        277
      • Usage

        277
  • DIAGnostic

    278
    • Subsystem Syntax

      278
    • DIAGnostic:CALibration:SETup[:MODE]

      279
      • Parameters

        279
      • Comments

        279
      • Usage

        279
    • DIAGnostic:CALibration:SETup[:MODE]?

      279
      • Comments

        279
    • DIAGnostic:CALibration:TARE[:OTDetect]:MODE

      280
      • Parameters

        280
      • Comments

        280
      • Usage

        280
    • DIAGnostic:CALibration:TARE[:OTDetect]:MODE?

      280
      • Comments

        280
    • DIAGnostic:CHECksum?

      281
      • Comments

        281
      • Usage

        281
    • DIAGnostic:CONNect

      281
      • Parameters

        281
      • Comments

        281
    • DIAGnostic:CUSTom:MXB

      282
      • Parameters

        282
      • Comments

        282
    • DIAGnostic:CUSTom:MXB

      282
      • Parameters

        282
      • Comments

        282
      • Usage

        283
    • DIAGnostic:CUSTom:PIECewise

      283
      • Parameters

        283
      • Comments

        283
      • Usage

        283
    • DIAGnostic:CUSTom:REFerence:TEMPerature

      284
      • Usage

        284
    • DIAGnostic:IEEE

      284
      • Parameters

        284
      • Comments

        284
      • Usage

        284
    • DIAGnostic:IEEE?

      285
      • Comments

        285
    • DIAGnostic:INTerrupt[:LINe]

      285
      • Parameters

        285
      • Comments

        285
      • Usage

        285
    • DIAGnostic:INTerrupt[:LINe]?

      285
      • Comments

        285
      • Usage

        285
    • DIAGnostic:OTDetect[:STATe]

      286
      • Parameters

        286
      • Comments

        286
      • Usage

        286
    • DIAGnostic:OTDetect[:STATe]?

      287
      • Parameters

        287
      • Comments

        287
      • Usage

        287
    • DIAGnostic:QUERy:SCPREAD?

      287
      • Parameters

        287
      • Comments

        287
      • Usage

        287
    • DIAGnostic:REMote:USER:DATA

      288
      • Parameters

        288
      • Comments

        288
    • DIAGnostic:REMote:USER:DATA?

      288
      • Parameters

        288
      • Comments

        288
    • DIAGnostic:TEST:REMote:NUMber?

      289
      • Parameters

        289
      • Comments

        289
    • DIAGnostic:TEST:REMote:SELFtest?

      290
      • Parameters

        290
      • Comments

        290
      • Usage

        291
    • DIAGnostic:VERSion?

      292
      • Comments

        292
      • Usage

        292
  • FETCh?

    293
    • Subsystem Syntax

      293
    • Comments

      293
    • Use Sequence

      294
  • FORMat

    295
    • Subsystem Syntax

      295
    • FORMat[:DATA]

      295
      • Parameters

        295
      • Comments

        295
      • Usage

        296
    • FORMat[:DATA]?

      297
      • Comments

        297
      • Usage

        297
  • INITiate

    298
    • Subsystem Syntax

      298
    • INITiate[:IMMediate]

      298
      • Comments

        298
      • Usage

        298
  • INPut

    299
    • Subsystem Syntax

      299
    • INPut:FILTer[:LPASs]:FREQuency

      299
      • Parameters

        299
      • Comments

        299
      • Usage

        300
    • INPut:FILTer[:LPASs]:FREQuency?

      300
      • Parameters

        300
      • Comments

        300
      • Usage

        300
    • INPut:FILTer[:LPASs][:STATe]

      301
      • Parameters

        301
      • Comments

        301
      • Usage

        301
    • INPut:FILTer[:LPASs][:STATe]?

      301
      • Parameters

        301
      • Comments

        301
      • Usage

        301
    • INPut:GAIN

      302
      • Parameters

        302
      • Comments

        302
      • Usage

        302
    • INPut:GAIN?

      303
      • Parameters

        303
      • Comments

        303
      • Usage

        303
    • INPut:LOW

      303
      • Parameters

        303
      • Comments

        303
      • Usage

        303
    • INPut:LOW?

      304
      • Parameters

        304
      • Comments

        304
      • Usage

        304
    • INPut:POLarity

      304
      • Parameters

        304
      • Comments

        304
      • Usage

        304
    • INPut:POLarity?

      305
      • Parameters

        305
      • Comments

        305
  • MEASure

    306
    • Subsystem Syntax

      306
    • MEASure:VOLTage:EXCitation?

      306
      • Parameters

        307
      • Comments

        307
      • Usage

        307
    • MEASure:VOLTage:UNSTrained?

      308
      • Parameters

        308
      • Comments

        308
      • Usage

        309
  • MEMory

    310
    • Subsystem Syntax

      310
    • Use Sequence

      310
    • MEMory:VME:ADDRess

      311
      • Parameters

        311
      • Comments

        311
      • Usage

        311
    • MEMory:VME:ADDRess?

      311
      • Comments

        311
      • Usage

        311
    • MEMory:VME:SIZE

      312
      • Parameters

        312
      • Comments

        312
      • Usage

        312
    • MEMory:VME:SIZE?

      312
      • Comments

        312
      • Usage

        312
    • MEMory:VME:STATe

      313
      • Parameters

        313
      • Comments

        313
      • Usage

        313
    • MEMory:VME:STATe?

      313
      • Comments

        313
      • Usage

        313
  • OUTPut

    314
    • Subsystem Syntax

      314
    • OUTPut:CURRent:AMPLitude

      314
      • Parameters

        315
      • Comments

        315
      • Usage

        315
    • OUTPut:CURRent:AMPLitude?

      315
      • Parameters

        315
      • Comments

        315
      • Usage

        316
    • OUTPut:CURRent[:STATe]

      316
      • Parameters

        316
      • Comments

        316
      • Usage

        316
    • OUTPut:CURRent[:STATe]?

      317
      • Parameters

        317
      • Comments

        317
      • Usage

        317
    • OUTPut:POLarity

      317
      • Parameters

        317
      • Comments

        317
      • Usage

        317
    • OUTPut:POLarity?

      318
      • Parameters

        318
      • Comments

        318
    • OUTPut:SHUNt

      318
      • Parameters

        318
      • Comments

        318
      • Usage

        318
    • OUTPut:SHUNt?

      319
      • Parameters

        319
      • Comments

        319
      • Usage

        319
    • OUTPut:SHUNt:SOURce

      319
      • Parameters

        319
      • Comments

        319
      • Usage

        320
    • OUTPut:SHUNt:SOURce?

      320
      • Parameters

        320
      • Comments

        320
      • Usage

        320
    • OUTPut:TTLTrg:SOURce

      321
      • Parameters

        321
      • Comments

        321
      • Usage

        321
    • OUTPut:TTLTrg:SOURce?

      321
      • Comments

        321
      • Usage

        321
    • OUTPut:TTLTrg<n>[:STATe]

      322
      • Parameters

        322
      • Comments

        322
      • Usage

        322
    • OUTPut:TTLTrg<n>[:STATe]?

      322
      • Comments

        322
      • Usage

        322
    • OUTPut:TYPE

      323
      • Parameters

        323
      • Comments

        323
      • Usage

        323
    • OUTPut:TYPE?

      323
      • Parameters

        323
      • Comments

        323
    • OUTPut:VOLTage:AMPLitude

      324
      • Parameters

        324
      • Comments

        324
      • Usage

        324
    • OUTPut:VOLTage:AMPLitude?

      324
      • Comments

        324
      • Usage

        324
  • ROUTe

    325
    • Subsystem Syntax

      325
    • ROUTe:SEQuence:DEFine

      325
      • Parameters

        325
      • Comments

        325
      • Usage

        327
    • ROUTe:SEQuence:DEFine?

      327
      • Parameters

        327
      • Comments

        327
      • Usage

        328
    • ROUTe:SEQuence:POINts?

      328
      • Parameters

        328
      • Comments

        328
      • Usage

        329
  • SAMPle

    330
    • Subsystem Syntax

      330
    • SAMPle:TIMer

      330
      • Parameters

        330
      • Comments

        330
      • Usage

        330
    • SAMPle:TIMer?

      331
      • Comments

        331
      • Usage

        331
  • [SENSe]

    332
    • Subsystem Syntax

      332
    • [SENSe:]DATA:CVTable?

      333
      • Parameters

        333
      • Comments

        333
      • Usage

        334
    • [SENSe:]DATA:CVTable:RESet

      335
      • Comments

        335
      • Usage

        335
    • [SENSe:]DATA:FIFO[:ALL]?

      335
      • Comments

        335
      • Usage

        336
      • Command Sequence

        336
    • [SENSe:]DATA:FIFO:COUNt?

      336
      • Comments

        336
      • Usage

        336
    • [SENSe:]DATA:FIFO:COUNt:HALF?

      336
      • Comments

        336
      • Command Sequence

        336
    • [SENSe:]DATA:FIFO:HALF?

      337
      • Comments

        337
      • Command Sequence

        337
    • [SENSe:]DATA:FIFO:MODE

      338
      • Parameters

        338
      • Comments

        338
      • Usage

        338
    • [SENSe:]DATA:FIFO:MODE?

      338
      • Comments

        338
      • Usage

        338
    • [SENSe:]DATA:FIFO:PART?

      339
      • Parameters

        339
      • Comments

        339
      • Usage

        339
    • [SENSe:]DATA:FIFO:RESet

      340
      • Comments

        340
      • Usage

        340
    • [SENSe:]FREQuency:APERture

      340
      • Parameters

        340
      • Comments

        340
      • Usage

        340
    • [SENSe:]FREQuency:APERture?

      341
      • Parameters

        341
      • Comments

        341
    • [SENSe:]FUNCtion:CONDition

      341
      • Parameters

        341
      • Comments

        341
      • Usage

        341
    • [SENSe:]FUNCtion:CUSTom

      342
      • Parameters

        342
      • Comments

        342
      • Usage

        342
    • [SENSe:]FUNCtion:CUSTom:HVOLtage

      343
      • Parameters

        343
      • Comments

        343
      • Usage

        343
    • [SENSe:]FUNCtion:CUSTom:REFerence

      344
      • Parameters

        344
      • Comments

        344
      • Usage

        344
    • [SENSe:]FUNCtion:CUSTom:TCouple

      345
      • Parameters

        345
      • Comments

        345
      • Usage

        346
    • [SENSe:]FUNCtion:FREQuency

      346
      • Parameters

        346
      • Comments

        346
      • Usage

        346
    • [SENSe:]FUNCtion:HVOLtage

      347
      • Parameters

        347
      • Comments

        347
      • Usage

        347
    • [SENSe:]FUNCtion:RESistance

      348
      • Parameters

        348
      • Comments

        348
      • Usage

        348
    • [SENSe:]FUNCtion:STRain:FBENding

      349
    • [SENSe:]FUNCtion:STRain:FBPoisson

      349
    • [SENSe:]FUNCtion:STRain:FPOisson

      349
    • [SENSe:]FUNCtion:STRain:HBENding

      349
    • [SENSe:]FUNCtion:STRain:HPOisson

      349
    • [SENSe:]FUNCtion:STRain[:QUARter]

      349
    • [SENSe:]FUNCtion:STRain:Q120

      349
    • [SENSe:]FUNCtion:STRain:Q350

      349
    • [SENSe:]FUNCtion:STRain:USER

      349
      • Parameters

        350
      • Comments

        350
      • Usage

        351
    • [SENSe:]FUNCtion:STRain:FBENding:POST

      351
    • [SENSe:]FUNCtion:STRain:FBPoisson:POST

      351
    • [SENSe:]FUNCtion:STRain:FPOisson:POST

      351
    • [SENSe:]FUNCtion:STRain:HBENding:POST

      351
    • [SENSe:]FUNCtion:STRain:HPOisson:POST

      351
    • [SENSe:]FUNCtion:STRain[:QUARter]:POST

      351
    • [SENSe:]FUNCtion:STRain:Q120:POST

      351
    • [SENSe:]FUNCtion:STRain:Q350:POST

      351
    • [SENSe:]FUNCtion:STRain:USER:POST

      351
      • Parameters

        352
      • Comments

        352
      • Usage

        353
    • [SENSe:]FUNCtion:TEMPerature

      353
      • Parameters

        353
      • Comments

        353
      • Usage

        354
    • [SENSe:]FUNCtion:TEMPerature:POST

      355
      • Parameters

        355
      • Comments

        355
      • Usage

        355
    • [SENSe:]FUNCtion:TOTalize

      356
      • Parameters

        356
      • Comments

        356
      • Usage

        356
    • [SENSe:]FUNCtion:VOLTage[:DC]

      356
      • Parameters

        356
      • Comments

        356
      • Usage

        357
    • [SENSe:]REFerence

      357
      • Parameters

        358
      • Comments

        358
      • Usage

        358
    • [SENSe:]REFerence:POST

      359
      • Parameters

        359
      • Comments

        359
      • Usage

        359
    • [SENSe:]REFerence:CHANnels

      360
      • Parameters

        360
      • Comments

        360
      • Usage

        360
    • [SENSe:]REFerence:CHANnels:POST

      360
      • Parameters

        361
      • Comments

        361
      • Usage

        361
    • [SENSe:]REFerence:TEMPerature

      361
      • Parameters

        362
      • Comments

        362
      • Usage

        362
    • [SENSe:]REFerence:TEMPerature:POST

      362
      • Parameters

        362
      • Comments

        362
      • Usage

        363
    • [SENSe:]REFerence:THERmistor:RESistance:POST

      363
      • Parameters

        363
      • Comments

        363
      • Usage

        363
    • [SENSe:]REFerence:THERmistor:RESistance:POST?

      364
      • Parameters

        364
      • Comments

        364
      • Usage

        364
    • [SENSe:]STRain:BRIDge[:TYPE]

      364
      • Parameters

        364
      • Comments

        364
      • Usage

        365
    • [SENSe:]STRain:BRIDge:[TYPE]?

      365
      • Parameters

        365
      • Comments

        365
      • Usage

        365
    • [SENSe:]STRain:CONNect

      365
      • Parameters

        365
      • Comments

        365
      • Usage

        366
    • [SENSe:]STRain:CONNect?

      366
      • Parameters

        366
      • Comments

        366
      • Usage

        366
    • [SENSe:]STRain:EXCitation

      366
      • Parameters

        367
      • Comments

        367
      • Usage

        367
    • [SENSe:]STRain:EXCitation?

      367
      • Parameters

        367
      • Comments

        367
      • Usage

        367
    • [SENSe:]STRain:EXCitation:STATe

      368
      • Parameters

        368
      • Comments

        368
      • Usage

        368
    • [SENSe:]STRain:EXCitation:STATe?

      368
      • Parameters

        368
      • Comments

        368
      • Usage

        368
    • [SENSe:]STRain:GFACtor

      369
      • Parameters

        369
      • Comments

        369
      • Usage

        369
    • [SENSe:]STRain:GFACtor?

      369
      • Parameters

        369
      • Comments

        369
      • Usage

        369
    • [SENSe:]STRain:POISson

      370
      • Parameters

        370
      • Comments

        370
      • Usage

        370
    • [SENSe:]STRain:POISson?

      370
      • Parameters

        370
      • Comments

        370
      • Usage

        370
    • [SENSe:]STRain:UNSTrained

      371
      • Parameters

        371
      • Comments

        371
      • Usage

        371
    • [SENSe:]STRain:UNSTrained?

      371
      • Parameters

        371
      • Comments

        371
      • Usage

        372
    • [SENSe:]TOTalize:RESet:MODE

      372
      • Parameters

        372
      • Comments

        372
      • Usage

        372
    • [SENSe:]TOTalize:RESet:MODE?

      373
      • Parameters

        373
      • Comments

        373
  • SOURce

    374
    • Subsystem Syntax

      374
    • SOURce:FM[:STATe]

      374
      • Parameters

        374
      • Comments

        374
      • Usage

        375
    • SOURce:FM:STATe?

      375
      • Parameters

        375
      • Comments

        375
    • SOURce:FUNCtion[:SHAPe]:CONDition

      375
      • Parameters

        375
      • Comments

        375
    • SOURce:FUNCtion[:SHAPe]:PULSe

      376
      • Parameters

        376
      • Comments

        376
    • SOURce:FUNCtion[:SHAPe]:SQUare

      376
      • Parameters

        376
      • Comments

        376
      • Usage

        376
    • SOURce:PULM[:STATe]

      376
      • Parameters

        376
      • Comments

        377
    • SOURce:PULM:STATe?

      377
      • Parameters

        377
      • Comments

        377
    • SOURce:PULSe:PERiod

      377
      • Parameters

        377
      • Comments

        377
      • Usage

        378
    • SOURce:PULSe:PERiod?

      378
      • Parameters

        378
      • Comments

        378
    • SOURce:PULSe:WIDTh

      378
      • Parameters

        378
      • Comments

        378
      • Usage

        379
    • SOURce:PULSe:WIDTh?

      379
      • Parameters

        379
      • Comments

        379
    • SOURce:VOLTage[:AMPLitude]

      379
      • Parameters

        379
      • Comments

        379
      • Usage

        380
  • STATus

    381
    • Initializing the Status System

      382
    • Subsystem Syntax

      382
    • Weighted Bit Values

      383
  • The Operation Status Group

    383
    • STATus:OPERation:CONDition?

      383
      • Comments

        383
      • Usage

        384
    • STATus:OPERation:ENABle

      384
      • Parameters

        384
      • Comments

        384
      • Usage

        384
    • STATus:OPERation:ENABle?

      385
      • Comments

        385
      • Usage

        385
    • STATus:OPERation[:EVENt]?

      385
      • Comments

        385
      • Usage

        385
    • STATus:OPERation:NTRansition

      386
      • Parameters

        386
      • Comments

        386
      • Usage

        386
    • STATus:OPERation:NTRansition?

      386
      • Comments

        386
      • Usage

        386
    • STATus:OPERation:PTRansition

      387
      • Parameters

        387
      • Comments

        387
      • Usage

        387
    • STATus:OPERation:PTRansition?

      387
      • Comments

        387
      • Usage

        387
    • STATus:PRESet

      388
      • Comments

        388
      • Usage

        388
  • The Questionable Data Group

    388
    • STATus:QUEStionable:CONDition?

      389
      • Comments

        389
      • Usage

        389
    • STATus:QUEStionable:ENABle

      389
      • Parameters

        389
      • Comments

        389
      • Usage

        389
    • STATus:QUEStionable:ENABle?

      390
      • Comments

        390
      • Usage

        390
    • STATus:QUEStionable[:EVENt]?

      390
      • Comments

        390
      • Usage

        390
    • STATus:QUEStionable:NTRansition

      391
      • Parameters

        391
      • Comments

        391
      • Usage

        391
    • STATus:QUEStionable:NTRansition?

      391
      • Comments

        391
      • Usage

        391
    • STATus:QUEStionable:PTRansition

      392
      • Parameters

        392
      • Comments

        392
      • Usage

        392
    • STATus:QUEStionable:PTRansition?

      392
      • Comments

        392
      • Usage

        392
  • SYSTem

    393
    • Subsystem Syntax

      393
    • SYSTem:CTYPe?

      393
      • Parameters

        393
      • Comments

        393
      • Usage

        393
    • SYSTem:CTYPe:REMote?

      393
      • Parameters

        394
      • Comments

        394
      • Usage

        394
    • SYSTem:ERRor?

      394
      • Comments

        394
      • Usage

        394
    • SYSTem:VERSion?

      394
      • Comments

        394
      • Usage

        394
  • TRIGger

    395
    • Event Sequence

      396
    • Subsystem Syntax

      396
    • TRIGger:COUNt

      397
      • Parameters

        397
      • Comments

        397
      • Usage

        397
    • TRIGger:COUNt?

      397
      • Comments

        397
      • Usage

        397
    • TRIGger[:IMMediate]

      398
      • Comments

        398
      • Usage

        398
    • TRIGger:SOURce

      398
      • Parameters

        398
      • Comments

        398
      • Usage

        399
    • TRIGger:SOURce?

      399
      • Usage

        399
    • TRIGger:TIMer[:PERiod]

      399
      • Parameters

        399
      • Comments

        399
      • Usage

        400
    • TRIGger:TIMer[:PERiod]?

      400
      • Comments

        400
      • Usage

        400
  • IEEE-488.2 Common Command Reference

    401
    • *CAL?

      401
    • *CLS

      402
    • *DMC

      402
    • *EMC

      402
    • *EMC?

      402
    • *ESE

      403
    • *ESE?

      403
    • *ESR?

      403
    • *GMC?

      403
    • *IDN?

      404
    • *LMC?

      404
    • *OPC

      404
    • *OPC?

      405
    • *PMC

      405
    • *RMC

      405
    • *RST

      405
    • *SRE

      406
    • *SRE?

      406
    • *STB?

      407
    • *TRG

      407
    • *TST?

      407
      • Comments

        407
    • *WAI

      410
  • Command Quick Reference

    411
• Appendix A Specifications

  421
  • VT1422A Specifications

    421
  • VT1529A/B Specifications

    451
• Appendix B Error Messages

  455
• Appendix C VT1529A/B Verification & Calibration

  465
  • Introduction

    465
  • Recommended Equipment

    465
  • Dummy Load

    465
  • Tests

    466
  • Verification

    466
    • Test V-1: Self-Test

      467
      • Description

        467
      • Setup

        467
      • Procedure

        467
      • Troubleshooting Failures

        467
    • Test V-2: Cal Remote

      467
      • Description

        467
      • Setup

        467
      • Procedure

        467
      • Troubleshooting Failures

        468
    • Test V-3: Sense Out

      468
      • Description

        468
      • Setup

        468
      • Procedure

        469
      • Troubleshooting Failures

        469
    • Test V-4: Bridge Resistors

      469
      • Description

        469
      • Setup

        470
      • Procedure

        470
      • Troubleshooting Failures

        471
    • Test V-5: Dynamic Strain Output Port

      471
      • Description

        471
      • Setup

        471
      • Procedure

        472
      • Troubleshooting Failures

        472
    • Test V-6: Filters

      473
      • Description

        473
      • Setup

        473
      • Procedure

        474
      • Troubleshooting Failures

        475
    • Test V-7: Shunt Cal Resistor Port

      476
      • Description

        476
      • Setup

        476
      • Procedure

        476
    • Test V-8: Internal Shunt

      477
      • Description

        477
      • Setup

        478
      • Procedure

        478
  • Calibration

    479
• Appendix D Glossary

  481
• Appendix E Wiring and Noise Reduction Methods

  485
  • Separating Digital and Analog SCP Signals

    485
  • Recommended Wiring and Noise Reduction Techniques

    486
    • Wiring Checklist

      486
    • VT1422A Guard Connections

      487
    • Common Mode Voltage Limits

      487
    • When to Make Shield Connections

      487
  • Noise Due to Inadequate Card Grounding

    487
  • VT1422A Noise Rejection

    488
    • Normal Mode Noise (Enm)

      488
    • Common Mode Noise (Ecm)

      488
    • Keeping Common Mode Noise out of the Amplifier

      488
• Appendix F Generating User Defined Functions

  489
  • Introduction

    489
  • Haversine Example

    490
  • Limitations

    492
• Appendix G Example PID Algorithm Listings

  493
  • PIDA Algorithm

    493
  • PIDB Algorithm

    495
    • Clipping Limits

      495
    • Alarm Limits

      495
    • Manual Control

      496
    • Status Variable

      496
    • History Mode

      496
  • PIDC Algorithm

    502
• Index

  507