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© National Instruments Corporation
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SCXI-1100 User Manual
About This Manual
This manual describes the electrical and mechanical aspects of the SCXI-1100 module and
contains information concerning its operation and programming. The SCXI-1100 operates as a
32-channel differential input multiplexer with an onboard software-programmable gain
instrumentation amplifier (PGIA). The SCXI-1100 is a member of the National Instruments
Signal Conditioning eXtensions for Instrumentation (SCXI) Series modules for the National
Instruments data acquisition plug-in boards. This module is designed for low-cost signal
conditioning of thermocouples, volt sources, millivolt sources, and 4 to 20 mA sources or 0 to
20 mA process-current sources.
This manual describes the installation, theory of operation, and basic programming
considerations for the SCXI-1100.
Organization of This Manual
The SCXI-1100 User Manual is organized as follows:
•
Chapter 1, Introduction, describes the SCXI-1100; lists the contents of your SCXI-1100 kit;
describes the optional software, optional equipment, and custom cables; and explains how to
unpack the SCXI-1100 kit.
•
Chapter 2, Configuration and Installation, describes the SCXI-1100 jumper configurations,
installation of the SCXI-1100 into the SCXI chassis, signal connections to the SCXI-1100,
and cable wiring.
•
Chapter 3, Theory of Operation, contains a functional overview of the SCXI-1100 module
and explains the operation of each functional unit making up the SCXI-1100.
•
Chapter 4, Register Descriptions, describes in detail the SCXI-1100 Module ID Register, the
Configuration Register, the Slot 0 registers, and multiplexer addressing.
•
Chapter 5, Programming, contains a functional programming description of the SCXI-1100
and Slot 0.
•
Appendix A, Specifications, lists the specifications for the SCXI-1100.
•
Appendix B, Rear Signal Connector, describes the pinout and signal names for the
SCXI-1100 50-pin rear signal connector, including a description of each connection.
•
Appendix C, SCXIbus Connector, describes the pinout and signal names for the SCXI-1100
96-pin SCXIbus connector, including a description of each connection.
•
Appendix D, SCXI-1100 Front Connector, describes the pinout and signal names for the
SCXI-1100 front connector, including a description of each connection.
•
Appendix E, SCXI-1100 Cabling, describes how to use and install the hardware accessories
for the SCXI-1100.