Chapter 2 Function Reference — SCXI_Configure_Filter
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National Instruments Corporation 2-335 NI-DAQ FRM for PC Compatibles
The SCXI-1126 has eight filter settings, one for each channel. These settings only work with
filterMode = 1. The default frequency setting for the SCXI-1126 is 1 Hz.
The SCXI-1141 also has one filter setting applied to all channels, so you must use channel =
–1 when you select a cutoff frequency for that module. After you select the cutoff frequency
for the entire module, you can configure one or more of the channels to enable the filter by
calling
SCXI_Configure_Filter again for each channel and setting filterMode = 3. By
default, all the channel filters on the SCXI-1141 are bypassed.