Set Sampling Frequency Using compactRIO Scan Engine

Updated Sep 14, 2023

Reported In


  • CompactRIO Chassis
  • CompactRIO Controller


  • LabVIEW

Issue Details

In the scan mode (non FGPA) of the compactRIO, the sampling rate is normally limited at 1 kHz or less.  I am trying to use LabVIEW to program the compactRIO, how do I change the sampling rate?


If you plan to use the scan engine you must synchronize the timed loops in your code to this scan engine. 

To synchronize a timed loop, right click the timed loop and select Configure Input Node. Here you should select synchronize to scan engine and use the period (number of scans) as a way of altering sampling frequency.