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National Instruments Corporation 14-1 DAQ Hardware Overview Guide
14
SCXI Hardware
This chapter contains overview information on SCXI hardware.
The information in this chapter is modified by information in the
VXI-DAQ Signal Conditioning section of the VXI-DAQ chapter and the
SCXI section of the PXI chapter.
Note
In this chapter, the term Lab and 1200 Device does not include the DAQPad-1200.
SCXI modules provide signal conditioning for analog input signals,
isolation for analog and digital I/O signals, and channel multiplexing to
increase the number of analog and digital signals provided by a DAQ
device. You connect signals to your SCXI modules using shielded SCXI
terminal blocks that plug into the front of the modules.
You can use a plug-in DAQ device in your computer to control the SCXI
modules and perform A/D conversions on the conditioned analog input
signals. You use an SCXI ribbon cable assembly to connect one of the
SCXI modules in your chassis to the plug-in DAQ device in your PC.
You also can use the SCXI-1200 data acquisition and control module in
your SCXI chassis to control the other SCXI modules and perform
A/D conversions remotely at the SCXI chassis. NI-DAQ uses either the
parallel port on your PC to communicate with the SCXI-1200 or the serial
port on your PC to communicate with the remote SCXI unit that houses the
SCXI-1200. You do not need to cable anything to other modules in the
chassis.
NI-DAQ supports the following DAQ devices for use with non-remote
SCXI:
• Lab and 1200 Devices (except for the DAQPad-1200)
•DIO-24
•DIO-32F
•DIO-96
• MIO and AI devices (except DAQPad devices)
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