Accessing waveform chart history collected via DAQmx

[Jeff_C.]

Hello,  I'm collecting voltage data using DAQmx and I'm displaying the data using a waveform chart.  At the end of the acquisition I would like to access the entire data set stored in the chart but when I attempt to do so using a History Data property node, it only gives me the data that was collected in the last chart update, not all of the data stored in the chart.  Attached is a copy of the program, which is simply the Continuous Analog Input example.  Any suggestions?  Thanks!

[crossrulz]

Data Flow.  You have no clue when that chart history will be read.  You need to force it to read after the acquisition is complete.  Using the error wire to force the data dependancy is a good way to do it.

How long are you acquiring the data for?  If much more than a few seconds, I would use that logging feature to stream the data to a TDMS file and then you can just read the resulting file.