Data flow problem

I tried diligently to understand and implement the correct data flow in Labview. I have a slight problem, now that I don't understand. While inside the loop internal (while loop) and data acq is running, the program does not query the capture button so it will hang in an infinite loop. Since the acquisition of data is configured to read a single sample, my logic says it should do exactly that and query button. I use that as a DAQ simulated at the present time, no hanging physical Board card. May this be the problem? Or is my simply wrong flow data?

There are a few problems.

  • You don't need a wait in a loop that has a structure of the event.
  • Your case of timeout is not necessary, he asks basically just the back button. Best is to create an event for the back button.
  • Yes, what's good is a structure of the event if it is blocked with an inner loop of maintenance events. You can use the outer loop for everything, it can turn plugs as well through the timeout event.
  • You should have logic to prevent the capture up to this as configured.

Attached is a quick project on how you can change things. Because I don't have DAQ, I can not test, so there are probably bugs. However, you should be able to see the main ideas.

Let me know if you have any questions.

Tags: NI Software

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