National Instruments Welding System 321645c-01 Manual De Usuario
Chapter 2
Function Reference — SCXI_Configure_Filter
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National Instruments Corporation
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NI-DAQ FRM for PC Compatibles
SCXI_Configure_Filter
Format
status = SCXI_Configure_Filter (chassisID, moduleSlot, channel, filterMode, freq,
cutoffDivDown, outClkDivDown, actualFreq)
Purpose
Configures the filter on any SCXI module that supports programmable filter settings.
Currently, only the SCXI-1122, SCXI-1126, and SCXI-1141 have programmable filter
settings; the other analog input modules have hardware-selectable filters.
Currently, only the SCXI-1122, SCXI-1126, and SCXI-1141 have programmable filter
settings; the other analog input modules have hardware-selectable filters.
Parameters
Input
Output
Parameter Discussion
channel is the module channel for which you want to change the filter configuration. If
channel = –1,
channel = –1,
SCXI_Configure_Filter
changes the filter configuration for all channels
on the module.
filterMode indicates the filter configuration mode for the given channel.
0:
Bypass the filter.
1:
Set filter cutoff frequency to freq.
Name
Type
Description
chassisID
i16
chassis ID number
moduleSlot
i16
chassis slot number of the module
channel
i16
module channel
filterMode
i16
filter configuration mode
freq
f64
filter cutoff frequency
cutoffDivDown
u16
external signal divisor for cutoff frequency
outClkDivDown
u16
clock signal divisor to send to OUTCLK
Name
Type
Description
actualFreq
f64
actual filter cutoff frequency