Programming instructions

Chapter 14 SCXI Hardware
DAQ Hardware Overview Guide 14-6 www.ni.com
If you are using a DIO-96, AT-MIO-16DE-10, or 6025E device, you can
also operate a digital module in parallel mode using the digital ports on the
second half of the ribbon cable—pins 51 through 100. Therefore, the
DIO-96 can operate two digital modules in parallel mode—one module
using the first half of the ribbon cable, pins 1 through 50, and another
module using the second half of the ribbon cable, pins 51–100. Set the
operating mode in Measurement & Automation Explorer to parallel
(secondary) for the module that will use the second half of the ribbon
cable.
SCXI Modules and Compatible DAQ Devices
The capabilities and limitations described in this section should help you
determine how your hardware components can work together in your
application and help you determine the best SCXI configuration for your
application. Please refer to your SCXI module and chassis user manuals
and DAQ device user manuals for detailed information about the
capabilities and limitations of your hardware.
SCXI Data Acquisition Device
The following device is an SCXI data acquisition device.
SCXI-1200
The SCXI-1200 is a 12-bit data acquisition and control module. NI-DAQ
communicates with the SCXI-1200 through either your PC parallel port or
through a remote SCXI configuration connected to your PC serial port. The
SCXI-1200 is functionally similar to the Lab-PC+ plug-in DAQ device.
After you configure this module in Measurement & Automation Explorer,
you assign a logical device number to it. Using the device number, you can
use the SCXI-1200 with almost any NI-DAQ function supported by the
Lab-PC+ as if it were a plug-in device inside the PC; you can use the analog
input functions, the analog output functions, the data acquisition functions,
the waveform generation functions, the Digital I/O functions, and the
Counter/Timer Functions, which are all described in Chapter 3, Software
Overview, of the NI-DAQ User Manual for PC Compatibles. The
NI-DAQ Function Reference Online Help shows exactly which NI-DAQ
functions support the SCXI-1200.
If you configure the SCXI-1200 for multiplexed mode, it can access the
analog bus on the SCXI backplane. When you configure other analog input
modules in the chassis for multiplexed mode, the SCXI functions can