VXI VT1422A manuals

Vxi VT1422A User Manual (529 pages)

Brand: Vxi | Category: Remote control | Size: 8.92 MB |

English

Table of contents

VT1422A Remote Channel

1

Multi-Function DAC Module

1

This page is blank

2

Safety Symbols

4

WARNINGS

4

Note for European Customers

4

DECLARATION OF CONFORMITY

5

Contents

9

10 Contents

10

Contents 11

11

12 Contents

12

Contents 13

13

14 Contents

14

Contents 15

15

16 Contents

16

Contents 17

17

18 Contents

18

Contents 19

19

20 Contents

20

Support Resources

21

22 Support

22

Getting Started

23

Setting the Logical

24

Address Switch

24

Installing Signal

25

Conditioning

25

Plug-Ons

25

Getting Started 27Chapter 1

27

Getting Started 29Chapter 1

29

1 Locate

30

Installing the Module

31

Instrument Drivers

31

About Example Programs

31

Field Wiring

35

36 Field Wiring Chapter 2

36

Sense SCPs and

37

Output SCPs

37

Planning for

38

Thermocouple

38

Field Wiring 39Chapter 2

39

40 Field Wiring Chapter 2

40

The RJ-45

41

Connector Module

41

Spring Terminal

41

Module Layout

41

42 Field Wiring Chapter 2

42

Screw Terminal

43

Terminal Module

44

Considerations for

45

TC Measurements

45

IMPORTANT!

46

Field Wiring 47Chapter 2

47

Field Wiring 49Chapter 2

49

VT1422A

50

Field Wiring 51Chapter 2

51

Free and remove the Terminal

52

Module from the A/D Module

52

Releasethetwoextraction

52

Field Wiring 53Chapter 2

53

54 Field Wiring Chapter 2

54

Field Wiring 55Chapter 2

55

56 Field Wiring Chapter 2

56

Field Wiring 57Chapter 2

57

58 Field Wiring Chapter 2

58

Chapter 3

59

Preparing the

61

VT1529A/B for Use

61

Installing User

61

Selected 1/4 Bridge

61

Resistors (Optional)

61

Detail "A"

62

Connecting

64

VT1529A/Bs to the

64

Two Interconnect

65

Spring and Screw

66

Terminal Modules

66

Example Terminal

68

Module to VT1529A/B

68

Connection

68

Excitation Supplies

69

Channel Connector

71

Pin-to-Signal

71

Relationship

71

The Quarter Bridge

72

The Half Bridge

73

The Full Bridge

74

Extending the

75

Dynamic Strain

75

Dynamic Strain Port

77

Offset Control

77

Runtime Remote

78

Scan Verification

78

Power-on and *RST

80

Configuration

80

Measure Strain Using

81

Built-in Strain EU

81

Built-in EU Conversion

84

Command Sequence

84

User Specified EU

85

Custom EU Conversion

87

Measure Bridge Voltages

88

Voltage Conversion

90

Resistor

92

Error Analysis

95

Programming the VT1422A for

97

Data Acquisition and Control

97

Flexible Signal

99

Conditioning for Input

99

Remote Multiplexing and

99

Signal Conditioning

99

Operational

100

Overview

100

Communicating with

101

Algorithms

101

Algorithms Control

101

Output Values

101

Detailed Instrument

102

Operation Cycle

102

Programming Model

104

Figure 4-3. Module States

105

Programming Overview Diagram

108

Configuring

109

Programmable

109

Analog SCP

109

Parameters

109

Linking Input

111

Channels to EU

111

Conversion

111

Linking Voltage

112

Measurements

112

Linking Resistance

113

Linking Temperature

114

°F or above)

116

Linking Strain

118

Linking Output

119

Channels to

119

Functions

119

Setting Up Digital

120

Setting Output

122

Drive Type

122

↑ edge to ↓ edge) of the

123

Calibrating the

124

Re-Execute

125

*CAL? When:

125

Controlling Scan List

126

Data Destination

126

Note for

127

VXIplug&play users

127

Global Variable

128

Definition

128

Pre-setting

128

Algorithm Variables

128

Defining Data Storage

129

Selecting the

130

FIFO Mode

130

Setting up the Trigger System

131

Starting Scanning

134

The Operating

135

Sequence

135

Reading Algorithm

139

Variables Directly

139

Example SCPI Command Sequence

141

Using the Status System

144

QUESTIONABLE DATA GROUP

145

OPERATION STATUS GROUP

145

STATUS BYTE GROUP

145

STANDARD EVENT GROUP

145

Status Bit Descriptions

146

Enabling Events to

147

Status Byte

147

Reading the Status

148

Clearing the Enable

149

Registers

149

The Status Byte

149

Group’s Enable

149

Register

149

VT1422A Background Operation

150

Important Note for

155

Thermocouples

155

Considerations

156

Detecting Open Transducers

157

More On Auto Ranging

158

Settling Characteristics

159

Adding Settling Delay for

161

Specific Channels

161

Chapter 5

163

About This Chapter

163

Changes to the Use Model

164

Must Count

165

New SCPI

165

Commands

165

Strain Measurements

166

Strain Conversion

169

Alternate Method of

170

Computing Strain

170

Temperature Measurements

172

Right Side

174

175

Measurement

176

Temperature

176

Voltage Measurements

177

Field Wiring for dc

178

DCV Measurement

179

Settling Time Considerations

180

µV. But, if many

181

Offset error (µV)

182

Chapter 6

183

Example Language

185

How User

186

Algorithms Fit In

186

Accessing I/O

188

Channels

188

Defined Input and Output

189

Algorithm Language

190

Example Scan

191

Verification Algorithms

191

Sending Data to the

193

CVT and FIFO

193

Setting a VXIbus

194

Interrupt

194

Determining An

195

Algorithm's Identity

195

(ALG_NUM)

195

Calling User

195

Defined Functions

195

Operating Sequence

196

Defining Algorithms (ALG:DEF)

198

Changing a

199

Running Algorithm

199

Determining an

200

Algorithm's Size

200

A Very Simple First Algorithm

202

Communication

203

Using Channel

203

Identifiers

203

Using Global

204

Variables

204

Non-Control Algorithms

206

Algorithm Language Reference

209

Intrinsic Functions

211

Program Flow

212

Another_var = 1.23e-6;

213

Language Syntax Summary

215

Program Structure and Syntax

219

The Operations

220

Conditional

220

Execution

220

Overall Program

223

Structure

223

VT1422A Command Reference

225

Common Commands

230

Command Fundamentals

231

Variable Command

232

2 Reading sent to FIFO Buffer

234

SCPI Command Reference

237

Subsystem Syntax ABORt

238

Usage ABORT

238

ALGorithm

239

ALGorithm[:EXPLicit]:ARRay?

241

ALGorithm[:EXPLicit]:DEFine

241

When accepted

244

ALGorithm[:EXPLicit]:SCALar

246

ALGorithm[:EXPLicit]:SCALar?

247

ALGorithm[:EXPLicit]:SIZE?

248

ALGorithm[:EXPLicit][:STATe]

249

ALGorithm[:EXPLicit][:STATe]?

250

ALGorithm[:EXPLicit]:TIME?

250

ALGorithm:FUNCtion:DEFine

251

ALGorithm:OUTPut:DELay

252

ALGorithm:OUTPut:DELay?

253

ALGorithm:UPDate[:IMMediate]

254

ALGorithm:UPDate:CHANnel

255

ALGorithm:UPDate:WINDow

256

ALGOrithm:UPDate:WINDow?

257

ARM[:IMMediate]

259

ARM:SOURce

259

ARM:SOURce?

260

CALCulate

261

double (float64)

262

CALibration

264

Subsystem Syntax CALibration

265

CALibration:CONFigure:VOLTage

266

• Returned Value:

267

CALibration:REMote:DATA

268

CALibration:REMote:DATA?

269

CALibration:REMote:STORe

269

CALibration:STORe

271

CALibration:TARE

272

CALibration:TARE:RESet

274

CALibration:TARE?

275

CALibration:VALue:RESistance

275

CALibration:VALue:VOLTage

276

CALibration:ZERO?

277

DIAGnostic

278

Comments

279

DIAGnostic:CHECksum?

281

DIAGnostic:CONNect

281

DIAGnostic:CUSTom:PIECewise

283

• *RST Condition: DIAG:IEEE 1

284

DIAGnostic:IEEE?

285

DIAGnostic:INTerrupt[:LINe]

285

DIAGnostic:INTerrupt[:LINe]?

285

DIAGnostic:OTDetect[:STATe]

286

DIAGnostic:OTDetect[:STATe]?

287

DIAGnostic:QUERy:SCPREAD?

287

DIAGnostic:REMote:USER:DATA

288

DIAGnostic:REMote:USER:DATA?

288

DIAG:REM:TEST? (@10000:10900)

291

• The data type is string

292

FORMat[:DATA]

295

• *RST Condition: ASCII, 7

296

• Related Commands: FORMAT

297

INITiate

298

Subsystem Syntax INPut

299

INPut:FILTer[:LPASs][:STATe]

301

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

301

INPut:GAIN

302

INPut:GAIN?

303

INPut:LOW

303

INPut:LOW?

304

INPut:POLarity

304

INPut:POLarity?

305

MEASure:VOLTage:EXCitation?

306

MEASure:VOLTage:UNSTrained?

308

Subsystem Syntax MEMory

310

Use Sequence *RST

310

Usage MEM:VME:ADDR #H400000

311

Usage MEM:VME:ADDR?

311

MEMory:VME:SIZE

312

MEMory:VME:SIZE?

312

MEMory:VME:STATe

313

MEMory:VME:STATe?

313

OUTPut:CURRent:AMPLitude

314

OUTPut:CURRent:AMPLitude?

315

OUTPut:CURRent[:STATe]

316

OUTPut:CURRent[:STATe]?

317

OUTPut:POLarity

317

OUTPut:POLarity?

318

OUTPut:SHUNt

318

OUTPut:SHUNt?

319

OUTPut:SHUNt:SOURce

319

OUTPut:SHUNt:SOURce?

320

OUTPut:TTLTrg:SOURce

321

OUTPut:TTLTrg:SOURce?

321

Usage OUTP:TTLT2 ON

322

Usage OUTP:TTLT2?

322

OUTPut:TYPE

323

OUTPut:TYPE?

323

OUTPut:VOLTage:AMPLitude

324

OUTPut:VOLTage:AMPLitude?

324

ROUTe:SEQuence:DEFine

325

ROUTe:SEQuence:DEFine?

327

ROUTe:SEQuence:POINts?

328

Usage ROUT:SEQ:POINTS? AIN

329

SAMPle:TIMer

330

SAMPle:TIMer?

331

Subsystem Syntax [SENSe:]

332

[SENSe:]DATA:CVTable?

333

[SENSe:]DATA:CVTable:RESet

335

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

335

[SENSe:]DATA:FIFO:COUNt?

336

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

336

[SENSe:]DATA:FIFO:HALF?

337

[SENSe:]DATA:FIFO:MODE

338

[SENSe:]DATA:FIFO:MODE?

338

[SENSe:]DATA:FIFO:PART?

339

[SENSe:]DATA:FIFO:RESet

340

[SENSe:]FREQuency:APERture

340

[SENSe:]FREQuency:APERture?

341

[SENSe:]FUNCtion:CONDition

341

[SENSe:]FUNCtion:CUSTom

342

[SENSe:]FUNCtion:FREQuency

346

[SENSe:]FUNCtion:HVOLtage

347

[SENSe:]FUNCtion:RESistance

348

[SENSe:]FUNCtion:TEMPerature

353

[SENSe:]FUNCtion:TOTalize

356

[SENSe:]FUNCtion:VOLTage[:DC]

356

[SENSe:]REFerence

357

[SENSe:]REFerence:POST

359

[SENSe:]REFerence:CHANnels

360

[SENSe:]REFerence:TEMPerature

361

Usage SENSE:REF:TEMP 40

362

[SENSe:]STRain:BRIDge[:TYPE]

364

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

365

[SENSe:]STRain:CONNect

365

[SENSe:]STRain:CONNect?

366

[SENSe:]STRain:EXCitation

366

[SENSe:]STRain:EXCitation?

367

[SENSe:]STRain:GFACtor

369

[SENSe:]STRain:GFACtor?

369

[SENSe:]STRain:POISson

370

[SENSe:]STRain:POISson?

370

[SENSe:]STRain:UNSTrained

371

[SENSe:]STRain:UNSTrained?

371

[SENSe:]TOTalize:RESet:MODE

372

[SENSe:]TOTalize:RESet:MODE?

373

SOURce:FM[:STATe]

374

SOURce:FM:STATe?

375

SOURce:FUNCtion[:SHAPe]:PULSe

376

SOURce:PULM[:STATe]

376

SOURce:PULM:STATe?

377

SOURce:PULSe:PERiod

377

SOURce:PULSe:PERiod?

378

SOURce:PULSe:WIDTh

378

SOURce:PULSe:WIDTh?

379

SOURce:VOLTage[:AMPLitude]

379

Usage SOUR:VOLT .041,(@10031)

380

• Operation Status Group

382

• Questionable Data Group

382

• Standard Event Group

382

• Status Byte Group

382

The Operation Status Group

383

STATus:OPERation:ENABle

384

STATus:OPERation:ENABle?

385

STATus:OPERation[:EVENt]?

385

STATus:OPERation:NTRansition

386

STATus:OPERation:NTRansition?

386

STATus:OPERation:PTRansition

387

STATus:OPERation:PTRansition?

387

The Questionable Data Group

388

STATus:QUEStionable:ENABle

389

STATus:QUEStionable:ENABle?

390

STATus:QUEStionable[:EVENt]?

390

Usage STAT:QUES:NTR 1024

391

Usage STAT:QUES:NTR?

391

Usage STAT:QUES:PTR 1024

392

Usage STAT:OPER:PTR?

392

SYSTem:CTYPe?

393

SYSTem:CTYPe:REMote?

393

SYSTem:ERRor?

394

SYSTem:VERSion?

394

Subsystem Syntax

396

TRIGger:COUNt

397

TRIGger:COUNt?

397

TRIGger[:IMMediate]

398

TRIGger:SOURce

398

TRIGger:SOURce?

399

TRIGger:TIMer[:PERiod]

399

TRIGger:TIMer[:PERiod]?

400

• Manufacturer

404

• Model Number

404

Command Quick Reference

411

Command Quick Reference

412

SCPI Command Quick Reference

412

Command Description

412

Specifications

421

A/D range

422

NOTE: If autoranging is ON:

423

RTD, SCPs VT1501A/02A/03A

443

RTD, SCPs VT1508A/09A

444

VT1529A/B Specifications

451

Gain drift

452

Bandwidth:

452

Error Messages

455

Error Messages 455Chapter B

457

Error Messages 457Chapter B

459

Error Messages 459Chapter B

461

Error Messages 461Chapter B

463

Appendix C

465

Verification

466

Test V-1: Self-Test

467

Test V-2: Cal

467

Test V-3: Sense Out

468

Test V-4: Bridge

469

Resistors

469

Test V-5: Dynamic

471

Strain Output Port

471

Test V-6: Filters

473

Test V-7: Shunt Cal

476

Resistor Port

476

Test V-8: Internal

477

Calibration

479

Glossary

481

480 Glossary Appendix D

482

Glossary 481Appendix D

483

482 Glossary Appendix D

484

Appendix E

485

VT1422A Noise Rejection

488

Appendix F

489

Introduction

489

Haversine Example

490

−π/2 π/2

491

Limitations

492

Appendix G

493

PIDA Algorithm

493

PIDA Source Listing

494

PIDB Algorithm

495

PIDB Source Listing

497

PIDC Algorithm

502

Numerics

507

AMPLitude], 377

508

DATA, 266

512

DATA?, 267, 286

512

[:MODE], 277

518

[:MODE]?, 277

518

:MODE, 278

520

:TEMPerature, 282

520

OUTPut:TTLTrg:SOURce?, 319

521

OUTPut:VOLTage:AMPLitude, 322

521

Acquisition

523

VXI devices