Thank y'all very much. We got it operational using two SCP instructions and XIO's and XIC's like binary numbers on the ladder logic. Now in the process of tweaking the program and draining the tank using a solenoid valve with the program.
I am trying to use a Rockwell SLC 5/03 to program a pressure transmitter to open and close a valve with a 4-20mA signal. The PLC is reading the signal, but I need to reverse it so that a 4mA signal input creates a 20mA signal output. I am trying to fill and empty a tank of water without it...