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SCXI-1120
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Configuration and Installation
Chapter 2
SCXI-1120 User Manual
2-22
© National Instruments Corporation
Figure 2-10. SCXI-1328 Parts Locator Diagram
Contents
Main
Page
Limited Warranty
Copyright
Trademarks
Warning Regarding Medical and Clinical Use of National Instruments Products
Contents
About This Manual
Chapter 1 Introduction
Chapter 2 Configuration and Installation
Chapter 3 Theory of Operation
Chapter 4 Register Descriptions
Chapter 5 Programming
Appendix A Specifications
Appendix B Rear Signal Connector
Appendix C SCXIbus Connector
Appendix D SCXI-1120 Front Connector
Page
Figures
Tables
About This Manual
Organization of This Manual
Conventions Used in This Manual
Related Documentation
Customer Communication
Chapter 1 Introduction
What Your Kit Should Contain
Optional Software
Optional Equipment
Custom Cables
Unpacking
Page
Page
Page
Digital Signal Connections
Page
Page
Analog Configuration
Page
Page
Page
Hardware Installation
Signal Connections
Configuration and Installation Chapter 2
SCXI-1120 User Manual 2-12 National Instruments Corporation
Front Connector
Figure 2-3 shows the pin assignments for the SCXI-1120 front connector.
Figure 2-3. SCXI-1120 Front Connector Pin Assignment
Front Connector Signal Descriptions
Figure 2-4. Ground-Referenced Signal Connection with High Common-Mode Voltage
Figure 2-6. Floating AC-Coupled Signal Connection
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Rear Signal Connector
Figure 2-11. SCXI-1120 Rear Signal Connector Pin Assignment
Rear Signal Connector Signal Descriptions
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National Instruments Corporation 3-1 SCXI-1120 User Manual
Chapter 3 Theory of Operation
Figure 3-1. SCXI-1120 Block Diagram
Functional Overview
The block diagram in Figure 3-1 illustrates the key functional components of the SCXI-1120.
SCXIbus Connector
Figure 3-2. SCXIbus Connector Pin Assignment
SCXIbus Connector Signal Descriptions
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Digital Interface
Digital Control Circuitry
Analog and Timing Circuitry
Analog Input Channels
Figure 3-5. Analog Input Block Diagram
Calibration
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Scanning Modes
Single-Module Parallel Scanning
Multiplexed Scanning
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Chapter 4 Register Descriptions
Register Description
Register Description Format
SCXI-1120 Registers
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Slot 0 Register Descriptions
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Chapter 5 Programming
Programming Considerations
Notation
Register Writes
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Single-Channel Measurements
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Scanning Measurements
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Scanning Examples
Example 1
Example 2
Example 3
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Appendix A Specifications
Analog Input
Cold-Junction Sensor
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Physical
Operating Environment
Storage Environment
Appendix B Rear Signal Connector
Figure B-1. SCXI-1120 Rear Signal Connector Pin Assignment
Rear Signal Connector Signal Descriptions
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Page
Figure C-1. SCXIbus Connector Pin Assignment
SCXIbus Connector Signal Descriptions
Page
Appendix D SCXI-1120 Front Connector
Figure D-1. SCXI-1120 Front Connector Pin Assignment
Front Connector Signal Descriptions
Appendix E SCXI-1120 Cabling
SCXI-1340 Cable Assembly
SCXI-1340 Installation
SCXI-1341 Lab-NB, Lab-PC, or Lab-PC+ and SCXI-1344 Lab-LC Cable Assembly
SCXI-1341 and SCXI-1344 Installation
SCXI-1342 PC-LPM-16 Cable Assembly
SCXI-1342 Installation
SCXI-1180 Feedthrough Panel
SCXI-1180 Installation
Page
SCXI-1302 50-Pin Terminal Block
SCXI-1302 Wiring Procedure
SCXI-1302 Installation
SCXI-1351 One-Slot Cable Extender
SCXI-1351 Installation
SCXI-1350 Multichassis Adapter
SCXI-1350 Installation
SCXI-1343 Rear Screw Terminal Adapter
SCXI-1343 Installation
Table E-4. SCXI-1343 Pin Connections
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Appendix G Customer Communication
Technical Support Form
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SCXI-1120 Hardware Configuration Form
Documentation Comment Form
Glossary
Numbers/Symbols
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Index
Numbers/Symbols
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