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06-17-2016 04:25 AM
i am using daq card 9025.
i wish to take two inputs at different channels but with different sampling frequency..
cani do this using daq assistant ?
or i wud have to use traditional daqmx functions?
could anyone shelp me with one example?
06-17-2016 05:09 AM
I would sample them both at the higher frequency, then decimate the data for the slower channel.
steve
06-17-2016 05:23 AM
A 9025 is a cRIO controller. I don't think that is what you have. Perhaps you meant a 9205, which is a 32 channel AI module.
All imputs from a single module will have to be read at the same rate. If you want to run at different frequencies, you will need to have another module. What I tend to do in similar situations is just read at the fastest rate needed and then just perform an average on the channels that should be at a slower rate.
06-17-2016 06:22 AM
and what averaging function would that be?
06-17-2016 06:34 AM
@Bgmnt wrote:and what averaging function would that be?
I typically used Mean.vi (does not get any simpler than that).