DAQ Assistant-Setting the Sample Rate and Samples to Read

Updated Jun 4, 2018

Reported In


  • LabVIEW


  • NI-DAQmx

Issue Details

I am using the DAQ Assistant. When going through the configuration I am able to set the Samples to Read and the Rate (HZ).

However, after the VI builds onto the block diagram, I am able to set the nodes corresponding to Number of Samples and Rate to new values.

This does not update the values in the DAQ Assistant configuration pop up window. Which values are actually being used for my data acquisition task.


When going through the configuration pop-up window of the DAQ Assistant, the Samples to Read and the Rate (HZ) can be set as initial conditions. After completing the configuration and the VI is built in the block diagram, one can change the sample rate and the number of samples to read by modifying the values that are sent to the corresponding node. The values set in the block diagram override the initial conditions originally set in the DAQ Assistant configuration pop-up window.