How To Wire 4-20mA 2 Wire Current Loops And 4 Wire Current Source Analog Instruments

The difference between 2 wire current loop and 4 wire current source 4-20mA wiring can be confusing.

In this video we go through how to identify and wire analog 4-20mA 2 wire and 4 wire devices then simulate them with the PLC Tools SIM-ALP2.