[Kevin Phan]

I know, but I have done the same thing as you did for your compressor and I am getting normal feedback. I used a Boolean array write and get vi to get the values of when the compressor is running and if the compressor is enabled. I can not see why your code is not working at all. I know I shouldn't be asking this, but by ground you do mean the power, ground and signal wires are all connected to the digital sidecar right?