Why when I am using the 4Hz filter, on the SCXI1122, it slows down my entire system.

I have a simple VI set up that reads one channel from the SCXI1122. I have AI Sample channel.vi in a 3 second while loop. When I setup the SCXI1122 to use the 4Hz filter and run my VI the used system resources on my computer go to 100% and slows everything down. Can somebody explain to me why this is happening.

My first reaction to your question is that the SCXI-1122 can only sample 1 sample per second when the 4 Hz filter is used. I would assume that it should work in a 1 second or longer loop. When you say 3 second while loop, I'm assuming that you mean you have a wait statement set for 3 seconds within the loop.
I would assume that your computer slowing could be a function of the AI Sample VI making the call to the board to get the sample, and then having to wait 1 second for the sample. If you don't have multithreading enabled, this could definitely make your computer "wait" until the data is available.
This is just my experience. Hope it helps you in some way.
Mark

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