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How does number of "Samples to Read" come into play with "Continuos Samples"?

How come there is a the option to select "Samples to Read" if I set the "Aquisition Mode" to "Continous Samples"?  I understand that the rate that data is acquired is selected under "Rate (Hz)."  That means that every 1/1000th of a second I get a data point, so what's with the "Samples to Read?"  Is it ignored once I select "Continuous Samples"?  I can see that if you want a finite number of data points, then you would select how many under "Samples to Read," but what am I missing?  I can't seem to see much if any variation in my data when I make changes to number of samples when I use continous sampling.  Snip.PNG

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Read the help file for the DAQmx Timing VI.  It has to do with the buffer size.

aputman
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If using the DAQ Assistant, the Samples To Read is how many samples from the continuous task to read from the buffer each time the DAQ Assistant is called.


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