Analog input wiring diagram - wiring a 2 wire transmitter to an stbaci0320 analog input goals and symptoms this resolution describes how to wire 2 wire analog transmitters to the inputs of an stbaci0320 analog input module you connect analog output with two wires ao and mana and also you should connect power supply to module then mana and 24v of the supply must be grounded this is important to have analog deviced to have the same potential as power supply i am facing one issue to in analog input connection first thing is i don t have analog input source for 4 20 m so i am using output module as a source i am generating 4 20 m from output module and trying yo give in input module my question is is it possible to connect this 2 wire 4 20 ma output in 2 wire analog input module if yes than please tell me wiring diagram