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© National Instruments Corporation 3-1 SCXI-1141/1142/1143 User Manual
3
Configuring and Testing
This chapter discusses configuring the SCXI-1141/1142/1143 in MAX
using NI-DAQmx, creating and testing a virtual channel, global channel,
and/or task.
Notes NI recommends that you have NI-DAQmx 8.3 or later installed.
Refer to the SCXI Quick Start Guide if you have not already configured the chassis.
SCXI-1141/1142/1143 Software-Configurable Settings
This section describes how to set the gain/input signal range and how to
configure your software for compatible sensor types. It also describes how
to perform configuration of these settings for the SCXI-1141/1142/1143 in
NI-DAQmx. For more information on the relationship between the settings
and the measurements and how to configure settings in your application,
refer to Chapter 4, Theory of Operation.
Common Software-Configurable Settings
This section describes the most frequently used software-configurable
settings for the SCXI-1141/1142/1143. Refer to Chapter 4, Theory of
Operation, for a complete list of software-configurable settings.
Gain/Input Range
Gain/input range is a software-configurable setting that allows you to
choose the appropriate amplification to fully utilize the range of the
E/M Series DAQ device. In most applications NI-DAQ chooses and sets
the gain for you determined by the input range. This feature is described in
Chapter 4, Theory of Operation. Otherwise, you should determine the
appropriate gain using the input signal voltage range and the full-scale
limits of the SCXI-1141/1142/1143 output. You can select a gain of 1, 2, 5,
10, 20, 50, or 100 on a per channel basis.