National Instruments SCXI -1125 用户手册

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Appendix D    Common Questions
D-4
ni.com
In LabVIEW, can I use a VI to change my filter setting?
In NI-DAQmx, you can change the filter settings using a DAQmx Channel 
property node. In Traditional NI-DAQ (Legacy), there is no VI available to 
do this. You must use the configuration utility in MAX to configure the 
filter setting of each channel.
In C, can I randomly scan the SCXI-1125 using low level Traditional 
NI-DAQ (Legacy) function calls?
No, using C, you can scan only consecutive channels using traditional 
SCXI channel programming. Refer to the NI-DAQ function reference 
manual for more details on SCXI scanning.