Document Outline

• NI 7831R User Manual
• Support
  • Worldwide Technical Support and Product Information
  • National Instruments Corporate Headquarters
  • Worldwide Offices
• Important Information
  • Warranty
  • Copyright
  • Trademarks
  • Patents
  • WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS
• Compliance
• Contents
• About This Manual
  • Conventions
  • Reconfigurable I/O Documentation
  • Related Documentation
• Chapter 1 Introduction
  • About the NI 7831R
  • Using PXI with CompactPCI
    • Table 1-1. Pins Used by the NI PXI-7831R
  • Overview of Reconfigurable I/O
    • Reconfigurable I/O Concept
      • Flexible Functionality
      • User-Defined I/O Resources
      • Device-Embedded Logic and Processing
    • Reconfigurable I/O Architecture
      • Figure 1-1. High-Level FPGA Functional Overview
    • Reconfigurable I/O Applications
  • Software Development
    • LabVIEW FPGA Module
    • LabVIEW Real-Time Module
  • Cables and Optional Equipment
    • Table 1-2. Cables and Accessories
  • Custom Cabling
  • Safety Information
• Chapter 2 Hardware Overview of the NI 7831R
  • Figure 2-1. NI 7831R Block Diagram
  • Figure 2-2. Parts Locator Diagram for the NI PXI-7831R
  • Figure 2-3. Parts Locator Diagram for the NI PCI-7831R
  • Analog Input
    • Table 2-1. Ideal Output Code and AI Voltage Mapping
    • Input Modes
      • Table 2-2. Available Input Modes for the NI 7831R
    • Input Range
  • Connecting Analog Input Signals
    • Figure 2-4. NI 7831R Instrumentation Amplifier
  • Types of Signal Sources
    • Floating Signal Sources
    • Ground-Referenced Signal Sources
  • Input Modes
    • Figure 2-5. Summary of Analog Input Connections
    • Differential Connection Considerations (DIFF Input Mode)
      • Differential Connections for Ground-Referenced Signal Sources
      • Figure 2-6. Differential Input Connections for Ground-Referenced Signals
      • Differential Connections for Nonreferenced or Floating Signal Sources
      • Figure 2-7. Differential Input Connections for Nonreferenced Signals
    • Single-Ended Connection Considerations
      • Single-Ended Connections for Floating Signal Sources (RSE Input Mode)
      • Figure 2-8. Single-Ended Input Connections for Nonreferenced or Floating Signals
      • Single-Ended Connections for Grounded Signal Sources (NRSE Input Mode)
      • Figure 2-9. Single-Ended Input Connections for Ground-Referenced Signals
    • Common-Mode Signal Rejection Considerations
  • Analog Output
    • Table 2-3. Ideal Output Voltage and Input Code Mapping
  • Connecting Analog Output Signals
    • Figure 2-10. Analog Output Connections
  • Digital I/O
  • Connecting Digital I/O Signals
    • Figure 2-11. Example Digital I/O Connections
    • Table 2-4. DIO Signal Guidelines for the NI 7831R
  • RTSI Trigger Bus
  • PXI Local Bus (for NI PXI-7831R only)
  • Switch Settings
    • Figure 2-12. Switch Settings on Switch SW1
  • Power Connections
  • Field Wiring Considerations
• Chapter 3 Calibration
  • Loading Calibration Constants
  • Internal Calibration
  • External Calibration
• Appendix A Specifications
• Appendix B Connecting I/O Signals
  • Figure B-1. NI 7831R Connector Locations
  • Figure B-2. NI 7831R I/O Connector Pin Assignments
  • Table B-1. I/O Connector Signal Descriptions
  • Table B-2. NI 7831R I/O Signal Summary
  • Figure B-3. Connector Pinouts when Using NSC68-262650 Cable
  • Figure B-4. Connector Pinouts when Using the NSC68-5050 Cable
• Appendix C Using the SCB-68 Shielded Connector Block
  • Figure C-1. General-Purpose Switch Configuration for the SCB-68 Terminal Block
• Appendix D Technical Support and Professional Services
• Glossary
  • Numbers/Symbols
  • A-B
  • C-D
  • E-H
  • I-M
  • N-P
  • R-S
  • T-W