How do I bring a 4-20 mA signal into a computer?
Convert signal from 4-20 mA to Modbus communication.
If you are sending a 4-20 mA signal to a computer from a CL17/ P53 or similar device that outputs a 4-20 mA signal you will need part number an Acromag (Catalog Number/ Order Code 5439600). This is a Modbus 485 analog current loop input module. You will also need an RS485-232 converter. This converter comes with USB termination or 232 termination. These are connected with the two conductor wire with shield.