I am developing a 16 channel data acquistion application using a cDaq9184 with a 9205 module. So far, I have one DaqTask set up in my .NET project along with one DaqComponent on the form for setting up the first AI channel. Each channel will have its own Waveform Graph on the form (form has a tab control for each WFG). I need to be able to log data from each of the channels selected by the user. All channels selected, their data will be logged to a single TDMS file. My question lies in the number of tasks that I require. For this application, should I use a single task with all the channels included in it or should I set up an individual task for each individual channel. If using individual tasks for each channel, is it going to be difficult or a pain to log all channels data to the single TDMS file? Thank you

Hi DM@Means, To solve your multiple waveform graph problem, you will need to modify the DaqTaskComponent1_DataReady event handler. Please see the following pseudo-code which would represent the modification you might make: System.Threading.Monitor.Enter(DaqTask1Component1) Dim acquiredData() As NationalInstruments.AnalogWaveform(Of Double) = e.GetData 'Plot the 0th waveform on WaveformGraph1 WaveformGraph1.PlotWaveform(acquiredData(0)) 'Plot the 1st waveform on WaveformGraph2 WaveformGraph2.PlotWaveform(acquiredData(1)) '... 'Plot the (n-1)th waveform on WaveformGraphn 'WavformGraphn.PlotWaveform(acquiredData(n-1)) System.Threading.Monitor.Exit(DaqTask1Component1) This way, when you're data are ready, you can just plot them on the graphs you have prepared on your UI.

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Number of DaqTasks required??

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Disregard my last post. I figured it out. Sorry.

Thanks.

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Number of DaqTasks required??

Re: Number of DaqTasks required??