Hello all,
I have a motor controller that needs an RS422 signal. If it sees a differential voltage above 2.5 V DC, the motor is activated. If it sees a differential voltage below 2.5 V DC, the motor is deactivated. I bought an RS232-to-RS422 converter. With the power on to my GPIB-232CV-A, I get a permanently supplied +5.2 V signal out of my converter. My suspicion is that if I can get a contsant signal out the the Tx pin on the GPIB-232CV-A (pin 3), then that will supply the negative voltage that I need, and bring the differential voltage down below the threshold. My question is, using LabVIEW, does anyone know of a way to get the GPIB-232CV-A to supply a constant Tx signal? Any help would be greatly appreciated. Thanks.