I Am Aquiring Too Many Samples Using DAQ Assistant in Labview

Updated Jan 28, 2019

Reported In

Software

  • LabVIEW

Driver

  • NI-DAQmx

Other

  • DAQ Assistant
  • LabVIEW

Issue Details

I am using Daq Assistant to acquire my data. When I drop the Express Vi on the diagram, I can set my sample rate but when I look at the data, it is a higher sample rate.

Solution

When acquiring data from a module you first need to check the datasheet and be sure of the limitation of your device.
As an example, using a sample rate of 1k Hz for a NI-9239 will not work as the minimum sample rate using the internal master timebase is 1613 sample per seconds.

You can not acquire less data than this limit.
 

Additional Information

Although you can not acquire less data than the limit shown above for example, you can:

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