This seems like it ought to be incredibly simple, but I am brand new to labview... I am acquiring data at a given rate (between 10 and 100 Hz) for the purpose of the read outs in my vi. What I would like to do is set up the DAQ and the experiement and run it, monitoring at all times my critical variables on gauges, etc. Then when I have reached the information I need, I would like to click and button and record a single sample. I would even take just a few samples. The way I have attempted to do this now is to briefly enable a relay between the signal source and the Write to Measurment File vi. This kind of works, as long as my sampling rate is low. With high sample rates (1000 Hz) I end up with a few thousand data points, when all I need is one. Thus the question: How do I take a snapshot of my data?

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What you have there is exactly what I ended up doing.

Thanks for all the help.

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