how to display waveform acquired from DAQ card separately in wavefrom chart

[nish87]

I have NI 9239 DAQ card and it has four channels. i have to create a labview GUI in which i have to display all the four waveforms separately. if i select all the four channels from the  daq assistant and connect to the waveform chart all four waves are overlaying....i need it separately for processing...what should i do???

Thanks and regards...

[Freelance_LV]

Hi

I would like to know how you mean 'over laying'. At least a picture of the waveform graph would help.

Do you need all the 4 channels on the single waveform chart/graph?

[nish87]

what i meant by overlaying is superimposed waveforms.i have attached the waveform...i need to see all the four waveforms separately to analyse it.It can be displayed on a single waveform chart or four waveformchart....

[Freelance_LV]

Hello

If you want to see them in four different charts, you can covnert the dynamic data output from a DAQ assistant to a 1D array of waveforms and index them to write to different chart indicators. You can find the 'to DDT' function under 'Express Functions - Signal Manippulation - To DDT'. Place this function on the BD, double click on it to select the kind of output you want. Then index the output to different charts.

If you want them on the same chart, you can try stacking the plots on a Chart indicator.

[nish87]

Hi

      I have done it for two channels...i have attached the front panel and the block diagram..can you please check and tell me what i have to do...i guess i have done what you asked me to do..but the waveform is not getting separated...

thanks and regards

NISHA

[nish87]

ATTACHMENT

[Freelance_LV · Accepted solution]

Try this

[nish87]

HI

      thanks for the solution.... 🙂

thanks and regards

NISHA