Benutzerhandbuch für National Instruments NI-488.2

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Benutzerhandbuch

Inhaltsverzeichnis

NI-488.2 User Manual for Windows
1
Support
2
- Worldwide Technical Support and Product Information
  2
- National Instruments Corporate Headquarters
  2
- Worldwide Offices
  2
Important Information
3
- Warranty
  3
- Copyright
  3
- Trademarks
  3
- WARNING REGARDING MEDICAL AND CLINICAL USE OF NATIONAL INSTRUMENTS PRODUCTS
  3
Contents
4
About This Manual
10
- Usingthe NI-488.2 Documentation
  10
  - Accessing the NI-488.2 Online Help
    10
- Conventions
  11
- Related Documentation
  11
Chapter 1 Introduction
12
- Setting up and Configuring Your System
  12
  - Controlling More Than One Interface
    13
  - Configuration Requirements
    13
Chapter 2 Measurement & Automation Explorer
15
- Overview
  15
- Starting Measurement & Automation Explorer
  16
- Getting Started with NI-488.2
  16
- Troubleshoot NI-488.2 Problems
  18
- Add a New GPIB Interface
  18
- Delete a GPIB Interface
  19
- Scan for GPIB Instruments
  19
  - Instruments Not Found
    20
  - Instruments Enumeration Failed
    20
- Communicate with Your Instrument
  20
  - Basic Communication (Query/Write/Read)
    20
  - Advanced Communication
    21
- View NI-488.2 Software Version
  22
- Monitor, Record, and Display NI-488.2 Calls
  22
- View or Change GPIB Interface Settings
  23
  - Windows98/95
    23
  - Windows2000/NT
    24
- View GPIB Instrument Information
  25
- Change GPIB Device Templates
  26
  - Windows98/95
    26
  - Windows2000/NT
    27
- Enable/Disable NI-488.2 DOS Support
  27
  - Windows98/95
    27
  - Windows2000/NT
    28
- Access Additional Help and Resources
  28
  - NI-488.2 Online Help
    28
  - National Instruments GPIB Web Site
    29
- View or Change GPIB-ENET Network Settings (Windows98/95 Only)
  29
Chapter 3 Developing Your NI-488.2 Application
31
- Simple Instrument Control
  31
- Interactive Instrument Control
  32
- Choosing Your Programming Methodology
  33
  - Choosing a Method to Access the NI-488.2 Driver
    33
    - NI-488.2 Language Interfaces
      33
    - Direct Entry Access
      33
  - Choosing How to Use the NI-488.2 API
    34
    - Communicating with a Single GPIB Device
      34
    - Using Multiple Interfaces and/or Multiple Devices
      35
- Checking Status with Global Variables
  35
- Using Interactive Control to Communicate withDevices
  37
- Programming Models
  38
  - Applications That Communicate with a Single GPIB Device
    38
    - Items to Include
      38
    - General Program Steps and Examples
      38
  - Applications That Use Multiple Interfaces or Communicate with MultipleGPIB Devices
    40
    - Items to Include
      40
    - General Program Steps and Examples
      40
- Language-Specific Programming Instructions
  42
- Running Existing NI-488.2 Applications
  47
Chapter 4 Debugging Your Application
49
- NI Spy
  49
- Global Status Variables
  50
- Existing Applications
  51
- NI-488.2 Error Codes
  51
- Configuration Errors
  51
- Timing Errors
  52
- Communication Errors
  53
  - Repeat Addressing
    53
  - Termination Method
    53
- Other Errors
  53
Chapter 5 NI Spy Utility
54
- Overview
  54
- Starting NI Spy
  54
- Using the NI Spy Online Help
  55
- Locating Errors with NI Spy
  55
- Viewing Properties for Recorded Calls
  55
- Exiting NI Spy
  56
- Performance Considerations
  56
Chapter 6 Interactive Control Utility
57
- Overview
  57
- Getting Started with Interactive Control
  57
- Interactive Control Syntax
  60
  - Number Syntax
    60
  - String Syntax
    60
  - Address Syntax
    61
- Interactive Control Commands
  61
- Status Word
  66
- Error Information
  66
- Count Information
  67
Chapter 7 NI-488.2 Programming Techniques
68
- Termination of Data Transfers
  68
- High-Speed Data Transfers (HS488)
  69
  - Enabling HS488
    69
  - System Configuration Effects on HS488
    70
- Waiting for GPIB Conditions
  71
- Asynchronous Event Notification in Win32 NI-488.2Applications
  71
  - Calling the ibnotify Function
    71
  - ibnotify Programming Example
    72
- Writing Multithreaded Win32 NI-488.2 Applications
  76
- Device-Level Calls and Bus Management
  78
- Talker/Listener Applications
  78
- Serial Polling
  79
- Parallel Polling
  84
  - Implementing a Parallel Poll
    84
    - Parallel Polling with Traditional NI-488.2 Calls
      84
    - Parallel Polling with Multi-Device NI-488.2 Calls
      86
Appendix A GPIB Basics
87
- Talkers, Listeners, and Controllers
  87
- Controller-In-Charge and System Controller
  87
- GPIB Addressing
  88
- Sending Messages across the GPIB
  88
  - Data Lines
    88
  - Handshake Lines
    89
  - Interface Management Lines
    89
Appendix B Status Word Conditions
90
- ERR (dev, brd)
  91
- TIMO (dev, brd)
  91
- END (dev, brd)
  91
- SRQI (brd)
  92
- RQS (dev)
  92
- CMPL (dev, brd)
  92
- LOK (brd)
  92
- REM (brd)
  93
- CIC (brd)
  93
- ATN (brd)
  93
- TACS (brd)
  93
- LACS (brd)
  94
- DTAS (brd)
  94
- DCAS (brd)
  94
Appendix C Error Codes and Solutions
95
- EDVR (0)
  96
  - Solutions
    96
- ECIC (1)
  96
  - Solutions
    97
- ENOL (2)
  97
  - Solutions
    97
- EADR (3)
  98
  - Solutions
    98
- EARG (4)
  98
  - Solutions
    98
- ESAC (5)
  99
  - Solutions
    99
- EABO (6)
  99
  - Solutions
    99
- ENEB (7)
  99
  - Solutions
    100
- EDMA (8)
  100
  - Solutions
    100
- EOIP (10)
  100
  - Solutions
    100
- ECAP (11)
  101
  - Solutions
    101
- EFSO (12)
  101
  - Solutions
    101
- EBUS (14)
  102
  - Solutions
    102
- ESTB (15)
  102
  - Solutions
    102
- ESRQ (16)
  103
  - Solutions
    103
- ETAB (20)
  103
  - Solutions
    103
Appendix D Windows 98/95: Troubleshooting and Common Questions
104
- Troubleshooting EDVR Error Conditions
  104
- Troubleshooting Device Manager Problems
  106
- Enabling Interrupts
  107
- Common Questions
  108
Appendix E Windows 2000/NT: Common Questions
112
- Common Questions
  112
Appendix F Technical Support Resources
115
Glossary
117
- A-B
  117
- C-E
  118
- F-H
  119
- I
  120
- L-M
  121
- N-R
  122
- S
  123
- T-U
  124
Index
125
- Numbers/Symbols
  125
- A
  125
- B-C
  126
- D-E
  127
- F-G
  128
- H-I
  129
- L-M
  130
- N
  131
- O-P
  132
- Q-S
  133
- T-W
  134
Figures
8
- Figure 1-1. Linear and Star System Configuration
  12
- Figure 1-2. Example of Multiboard System Configuration
  13
- Figure 2-1. Measurement & Automation Explorer
  16
- Figure 2-2. Viewing Documentation on Your CD
  17
- Figure 2-3. NI-488.2 Troubleshooting Wizard
  18
- Figure 2-4. NI-488.2 Communicator
  21
- Figure 2-5. NI-488.2 Calls Recorded by NI Spy
  23
- Figure 2-6. Properties Dialog Box in Windows 98/95
  24
- Figure 2-7. GPIB Configuration Utility in Windows NT
  25
- Figure 3-1. NI-488.2 Communicator
  32
- Figure 4-1. NI-488.2 Calls Recorded by NI Spy
  50
- Figure 5-1. NI-488.2 Calls Recorded by NI Spy
  55
- Figure 6-1. Instrument Address in Measurement & Automation Explorer
  58
- Figure A-1. GPIB Address Bits
  88
Tables
8
- Table 2-1. Measurement & Automation Explorer Instrument Information
  26
- Table 3-1. Status Word Layout
  36
- Table 6-1. Syntax for Device-Level Traditional NI-488.2 Calls in Interactive Control
  61
- Table 6-2. Syntax for Board-Level Traditional NI-488.2 Calls in Interactive Control
  63
- Table 6-3. Syntax for Multi-Device NI-488.2 Calls in Interactive Control
  64
- Table 6-4. Auxiliary Functions in Interactive Control
  65
- Table A-1. GPIB Handshake Lines
  89
- Table A-2. GPIB Interface Management Lines
  89
- Table B-1. Status Word Layout
  90
- Table C-1. GPIB Error Codes
  95
- Table D-1. Device Manager Status Codes
  106

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