Hello:
I would like to use an NI 9476 to actuate 24 V relays. My setup consists of a 24 V power supply feeding into a CB-37F-HVD terminal block (into the Vsup and COM channels - I chose channel 28 for the Vsup and 19 for the COM). I have 3 relay connected to the terminal block and would like to pass control signals to them.
My impression is that the LabVIEW variable DO28 (the Vsup) needs to be always set to TRUE so that a voltage is applied to our circuit, which I can then switch to LOW when I want to actuate a relay. I have tried to create a program both through scan mode and FPGA but I still can't get a control signal through to the relay. I am using a cRIO 9024.
I am not sure if the wiring I have is wrong or the LabVIEW logic I have proposed is incorrect.
Your assistance is appreciated, thank you.
Jacek