Eliminate high frequency noise when using PID control loop vi

[raymondwc]

When I receive the analogue process variable with PID control loop.vi, there are some high frequency noises(i.e. 10kHz). Since the loop rate of the program of shortest 1ms, how can I elimate the high frequency noise by programming? Thankyou!

[Dr._Imad]

you may use some modules that eleminate the noise, or a simple RC circuit to do that.

"how can I elimate the high frequency noise by programming? "
to do that programmatically , have a look at some the examples that ship with LabVIEW for filtering. However, your sample rate should be at least 20kHz to then be able to do sofware-filtering. This is to eleminate aliasing.