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How to display several buffers with DAQmx

Hi gents,

 

I'm working in a project  using DAQmw tools, I configured my acquisition like this : rate 51200 KHz and number of samples per channel 5120 samples so the buffers size became 5120 (100ms of data). my problem is that I want to display in a chart a custom scale so for example if I want to display 500ms of data I have to display 5 buffers concatenated, or 1s of data 10 buffers concatenated;...  I succeed to do this with a chart proprety node (x scale) but I have also to compute a kurtosis and RMS of the displayed signal in real time and the problem is when I tried to compute them ,the calculation is done on one buffer not on all displayed buffers, for example if the chart display a 500 ms (5 buffers) I want to calculate the RMS and the kurtosis of all the displayed data (5 buffers) not for only one so the input of RMS should be (5*5120 samples) not only (5120) I can't find a solution to store this 5 buffers and compute an RMS on them in real time . ANY HELP please ans sorry for my english

 

 

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Use a property node to find the displayed chart history.

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"Should be" isn't "Is" -Jay
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