I have a couple of Heat Exchangers that I'm trying to get to communicate with lab view and have been unsuccesfull so far. I have a working program that sends the correct voltage to the machine but I can't seem to get it to turn on and I'm running out of ideas as to why. I'm sure im using the right device pinouts and everything seems to be in working order. I'm measuring the correct voltages at the device plug but I can't start the heat exchanger in remote mode. I'm sending a 24V signal via power supply through a NI 9482 electromechanical relay to the Pump control pin. I have verified the voltage is getting to the machine correctly with a multimeter. Any ideas what im missing?
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