manuais National Instruments NI-488.2

National instruments NI-488.2 Manual do Utilizador (172 páginas)

Marca: National-instruments | Categoria: Software | Tamanho: 0.49 MB |

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Índice

NI-488.2

1

Limited Warranty

3

Copyright

4

Trademarks

4

Contents

5

Chapter 5

7

Chapter 6

8

GPIB Spy

8

About This Manual

12

Organization of This Manual

13

Related Documentation

15

Chapter 1

16

Introduction

16

GPIB Addressing

17

Configuration Requirements

20

The NI-488.2 Software Package

21

C Language Files

22

Visual Basic Language Files

22

Win 32s Files

23

Sample Application Files

23

Chapter 2

25

Application Examples

25

Example 3: Asynchronous I/O

30

Example 5: Service Requests

34

(continues)

36

(Continued)

37

IEEE 488.2-Compliant Devices

38

SendList

41

"SRQ=HI"

41

Example 8: Parallel Polls

42

Chapter 3

46

Developing Your Application

46

Status Word – ibsta

48

Error Variable – iberr

50

Items to Include

51

NI-488 Program Shell

52

NI-488.2 Program Shell

57

Microsoft C

62

Borland C++

62

Visual Basic

63

Direct Entry with C

63

HINSTANCE GpibLib = NULL;

65

Chapter 4

69

Debugging Your Application

69

Running GPIBInfo

70

Debugging with wibic

72

Debugging with GPIB Spy

72

GPIB Error Codes

72

Configuration Errors

73

Timing Errors

74

Communication Errors

74

Common Questions

75

Control Utility

78

Number Syntax

81

String Syntax

82

Address Syntax

82

buffer v

85

Status Word

86

Error Information

86

Common NI-488 Functions

87

Send and SendList

90

Auxiliary Functions

91

Set (Select Device or Board)

92

! (Repeat Previous Function)

92

$ (Execute Indirect File)

93

Exiting GPIB Spy

96

Viewing Call Details

96

Calls To Highlight

97

Calls To Trap On

97

Buffer History

97

Set Highlight Color

97

GPIB Spy Output Options

98

GPIB Spy Help

99

Performance Considerations

99

Chapter 7

100

GPIB Programming Techniques

100

Enabling HS488

101

Waiting for GPIB Conditions

102

Talker/Listener Applications

103

Serial Polling

104

Automatic Serial Polling

105

#include "decl.h"

106

Parallel Polling

109

Chapter 8

112

Configuration Utility

112

Upper-Level Device Map

114

Primary GPIB Address

118

Secondary GPIB Address

118

Timeout Setting

118

Terminate Read on EOS

119

Set EOI with EOS on Writes

119

Type of Compare on EOS

119

EOS Byte

119

Send EOI at End of Write

120

GPIB-PCII/IIA Mode Switch

122

Exiting wibconf

123

Checking for Errors

124

Appendix A

127

Status Word Conditions

127

ERR (dev, brd)

128

TIMO (dev, brd)

128

END (dev, brd)

128

SRQI (brd)

128

RQS (dev)

128

SPOLL (brd)

129

EVENT (brd)

129

CMPL (dev, brd)

129

LOK (brd)

129

REM (brd)

130

CIC (brd)

130

ATN (brd)

130

TACS (brd)

130

LACS (brd)

130

DTAS (brd)

131

DCAS (brd)

131

Appendix B

132

Error Codes and Solutions

132

ECIC (1)

133

ENOL (2)

134

EADR (3)

134

EARG (4)

135

ESAC (5)

135

EABO (6)

136

ENEB (7)

136

EDMA (8)

136

EOIP (10)

137

ECAP (11)

138

EFSO (12)

138

EBUS (14)

139

ESTB (15)

139

ESRQ (16)

139

ETAB (20)

140

Appendix C

141

Customer Communication

141

Technical Support Form

142

Documentation Comment Form

144

Glossary

146

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