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PXIe-5171R creating a 3-channel actual 4-channel

Hi All,

I have a question about the channel configuration of 5171R.I using Stream To Disk(Host).vi.My request is 3 channel data acquistion.The problem is that I create 3 channels but it will generate 4 channels.I found that the number of channels created is always 2^n(1,2,4,8).

I only need 3 channels,and the extra channel will take up 400M per second.If i change 4 channel to 3,my data will be confused.It's should have a way to modify.Does anyone have a solution?Thanks!

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I believe the channel count is embedded into FPGA code. Have you tries removing 4th channel from tdms channels list?

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