I have run into this same problem except I have NI-DAQmx v 8.9.5.
Essentially when I have one relay actuated so nc0 -> com0 and I want to actuate another nc1 -> com1 this first relay opens no0 -> com0
Anyone else run into this??
Calling the relay open and close VIs on the separate 1161 channels won't affect the other channels if you've configured your code properly. Post up your code and we can look it over.
John I was able to determine the error.
I had the DAQmx Switch Set Topology and Reset VI in my loop as opposed to calling before my loop which was causing the error.
After I removed the VI outside of my loop I no longer have this problem.
Thanks for your interest in my problem.