LabVIEW 2010 - Display data in real-time, but only save the data once a button is pressed?

[Dennis_Knutson]

Your file write needs to be inside the main while loop or you pass the data to a separate loop via a queue like the producer/consumer architecture (File>New...From Template>Frameworks>Design Patterns).

[MoReese]

Bring your Write to Measurement VI inside your while loop.  Keep the same mechanical action of your boolean and try that.  It should record as long as the button is depressed (on).  This general archetecture may be OK for this application, but it's not very scalable.  Look into the producer-consumer archetecure.  Perhaps something event driven.  Even if it's over-kill at first, you can grow into it much easier.  I almost always use this archetecuture, even if I don't need it.

[shears]

Thanks both for help, will report back with the results in the next week.

[shears]

It turned out the simplest solution was to omit the Data Collector.

[mikewex]

This looks just like what I need. Would you mind uploading your final version? Thanks