Manuali utente per National Instruments SCXI-1121

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Manuale Utente

Sommario

SCXI-1121 User Manual
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 USE OF NATIONAL INSTRUMENTS PRODUCTS
  3
Contents
4
About This Manual
9
- Conventions
  9
- Related Documentation
  10
Chapter 1 Introduction
11
- What Your Kit Should Contain
  12
- Optional Software
  12
- Optional Equipment
  14
  - Custom Cables
    15
- Unpacking
  16
Chapter 2 Configuration and Installation
17
- Module Configuration
  17
  - Digital Signal Connections
    19
    - Jumper W44
      19
    - Jumper W38
      20
    - Jumper W32
      20
    - Using Jumpers W32 and W38
      20
  - Analog Configuration
    22
- Hardware Installation
  30
- Signal Connections
  31
Chapter 3 Theory of Operation
63
- Functional Overview
  63
  - SCXIbus Connector
    65
  - SCXIbus Connector Signal Descriptions
    66
- Digital Interface
  68
- Digital Control Circuitry
  69
- Analog and Timing Circuitry
  70
  - Analog Input Channels
    70
  - Excitation Output Channels
    73
  - Calibration
    73
  - Analog Output Circuitry
    77
- Scanning Modes
  79
  - Single-Module Parallel Scanning
    79
  - Multiplexed Scanning
    79
Chapter 4 Register Descriptions
83
- Register Description
  83
Chapter 5 Programming
92
- Programming Considerations
  92
- Scanning Examples
  106
  - Example 1
    106
  - Example 2
    106
  - Example 3
    107
Appendix A Specifications
109
Appendix B Rear Signal Connector
113
Appendix C SCXIbus Connector
115
Appendix D SCXI-1121 Front Connector
119
Appendix E SCXI-1121 Cabling
123
Appendix F Revision A and B Photo and Parts Locator Diagrams
139
Appendix G Technical Support Resources
142
Glossary
144
- Numbers/Symbols
  144
- A
  144
- B-D
  145
- E-H
  146
- I-M
  147
- N-R
  148
- S-T
  149
- U-W
  150
Index
151
- Numbers
  151
- A-B
  151
- C
  152
- D-E
  153
- F-I
  154
- J-M
  155
- N-P
  156
- R
  157
- S
  158
- T-V
  161
- W
  162
Figures
7
- Figure 2-1. SCXI-1121 General Parts Locator Diagram
  17
- Figure 2-2. SCXI-1121 Detailed Parts Locator Diagram
  18
- Figure 2-3. SCXI-1121 Front Connector Pin Assignment
  33
- Figure 2-4. Ground-Referenced Signal Connection with High Common-Mode Voltage
  36
- Figure 2-5. Floating Signal Connection Referenced to Chassis Ground for Better Signal-to-Noise Ratio
  36
- Figure 2-6. Floating AC-Coupled Signal Connection
  37
- Figure 2-7. AC-Coupled Signal Connection with High Common-Mode Voltage
  37
- Figure 2-8. Assembling and Mounting the SCXI-1330 Connector-and-Shell Assembly
  39
- Figure 2-9. Nulling Circuit
  43
- Figure 2-10. Shunt Circuit
  45
- Figure 2-11. SCXI-1320 Parts Locator Diagram
  50
- Figure 2-12. SCXI-1328 Parts Locator Diagram
  51
- Figure 2-13. SCXI-1321 Parts Locator Diagram
  52
- Figure 2-14. SCXI-1121 Rear Signal Connector Pin Assignment
  53
- Figure 2-15. SCANCLK Timing Requirements
  58
- Figure 2-16. Slot-Select Timing Diagram
  59
- Figure 2-17. Serial Data Timing Diagram
  60
- Figure 2-18. Configuration Register Write Timing Diagram
  61
- Figure 2-19. SCXI-1121 Module ID Register Timing Diagram
  62
- Figure 3-1. SCXI-1121 Block Diagram
  63
- Figure 3-2. SCXIbus Connector Pin Assignment
  65
- Figure 3-3. Digital Interface Circuitry Block Diagram
  68
- Figure 3-4. SCXI-1121 Digital Control
  69
- Figure 3-5. Analog Input Block Diagram
  71
- Figure 3-6. Analog Output Circuitry
  77
- Figure 3-7. Single-Module Parallel Scanning
  79
- Figure 3-8. Single-Module Multiplexed Scanning (Direct)
  80
- Figure 3-9. Single-Module Multiplexed Scanning (Indirect)
  81
- Figure 3-10. Multiple-Module Multiplexed Scanning
  81
- Figure 3-11. Multiple-Chassis Scanning
  82
- Figure B-1. SCXI-1121 Rear Signal Connector Pin Assignment
  113
- Figure C-1. SCXIbus Connector Pin Assignment
  116
- Figure D-1. SCXI-1121 Front Connector Pin Assignment
  120
- Figure E-1. SCXI-1340 Installation
  126
- Figure E-2. SCXI-1180 Rear Connections
  131
- Figure E-3. SCXI-1180 Front Panel Installation
  132
- Figure E-4. Cover Removal
  133
- Figure F-1. Revision A and B SCXI-1121 Signal Conditioning Module
  139
- Figure F-2. Revision A and B SCXI-1121 General Parts Locator Diagram
  140
- Figure F-3. Revision A and B SCXI-1121 Detailed Parts Locator Diagram
  141
Tables
8
- Table 2-1. Digital Signal Connections, Jumper Settings
  21
- Table 2-2. Jumper W33 Settings
  23
- Table 2-3. Gain Jumper Allocation
  24
- Table 2-4. Gain Jumper Positions
  24
- Table 2-5. Filter Jumper Allocation
  25
- Table 2-6. Voltage and Current Mode Excitation Jumper Setup
  26
- Table 2-7. Maximum Load per Excitation Channel
  27
- Table 2-8. Excitation Level Jumper Selection
  27
- Table 2-9. Completion Network Jumpers
  28
- Table 2-10. Trimmer Potentiometer and Corresponding Channel
  41
- Table 2-11. Nulling Resistors and Corresponding Channel
  42
- Table 2-12. Jumper Settings of the Nulling Circuits
  44
- Table 2-13. Jumper Settings on the SCXI-1320 Terminal Block
  48
- Table 2-14. Jumper Settings on the SCXI-1328 Terminal Block
  48
- Table 2-15. Jumper Settings on the SCXI-1321 Terminal Block
  48
- Table 2-16. SCXIbus to SCXI-1121 Rear Signal Connector to Data Acquisition Board Pin Equivalences
  57
- Table 3-1. SCXIbus Equivalents for the Rear Signal Connector
  67
- Table 3-2. Calibration Potentiometer Reference Designators
  76
- Table 5-1. SCXI-1121 Rear Signal Connector Pin Equivalences
  93
- Table E-1. SCXI-1121 and MIO-16 Pinout Equivalences
  124
- Table E-2. SCXI-1341 and SCXI-1344 Pin Translations
  127
- Table E-3. SCXI-1342 Pin Translations
  129
- Table E-4. SCXI-1343 Pin Connections
  136

Dimensioni:

1,86 MB
Pagine:

162
Language:

English

Apri il manuale

Manuale Utente

Sommario

Dimensioni:

1,86 MB
Pagine:

162
Language:

English

Apri il manuale