Hi, I need your help. I want to connect two encoders independent of each other to measure angular position using the NI USB-6216 counters, but I can't get both counters to work simultaneously without depending on each other. I am using two-pulse decoders I am generating a clock signal with a dummy analog output for both counters, but I can't get them to work independently, they can start counting together but I need them to stop at different times.

Still unsure what the *exact* problem is. Please describe your observations and symptoms in much more detail. Also, with regard to the physical wiring, you've described the signal (+) side of the wiring but not the return/common (-) side. Do the encoders, their power supply, *and* your DAQ all share the same common (-)? -Kevin P

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how to measure angular position of two encoders using NI 6216

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ok thank you very much that was a common error shared by the sources that feed the encoders.

Thanks for helping

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how to measure angular position of two encoders using NI 6216

Re: how to measure angular position of two encoders using NI 6216