Chapter 3 Configuring and Testing
© National Instruments Corporation 3-3 SCXI-1125 User Manual
NI-DAQmx
In NI-DAQmx, you can configure software settings such as filter
bandwidth and gain/input signal range in the following ways:
• Task or global channel in MAX
• Functions in your application
Note All software-configurable settings are not configurable both ways. This section only
discusses settings in MAX. Refer to Chapter 4, Theory of Operation, for information on
using functions in your application.
These sections describe settings that you can change in MAX and where
they are located.
• Filter bandwidth—configure the Device tab using either NI-DAQmx
Task or NI-DAQmx Global Channel. You also can set the value
through your application.
• Input signal range—configure the input signal range using either
NI-DAQmx Task or NI-DAQmx Global Channel. When you set the
minimum and maximum range of NI-DAQmx Task or NI-DAQmx
Global Channel, the driver selects the best gain for the measurement.
You also can set it through your application.
• Modes of operation—configure only using chassis installation in
software. Refer to Chapter 1, About the SCXI-1125, for more
information on chassis installation. The default setting in NI-DAQmx
is multiplexed.
• Terminal block attenuation—for terminal blocks with manually
adjustable attenuation such as the SCXI-1327, you must configure the
attenuator in the chassis configurator. Refer to the SCXI Quick Start
Guide for more information.
Note Refer to Chapter 4, Theory of Operation, for information on configuring the settings
for your application using Traditional NI-DAQ (Legacy).
Creating a Voltage Global Channel or Task
To create a new NI-DAQmx global task or channel, complete the following
steps:
1. Double-click Measurement & Automation on the desktop.
2. Right-click Data Neighborhood and select Create New.
3. Select NI-DAQmx Task or NI-DAQmx Global Channel, and click
Next.