A power positive, a power negative, a signal line, output 4 to 20 mA current, how to receive the signal line PLC?
Pressure sensor output signal is 4-20mA, usually two wire system, it can not be 3 lines! The output of the 3 wire is a voltage signal
This is a common ground sensor. The power and signal have only one common negative pole
There are two power supply interface and the input signal of two PLC interface, some words on the power supply cathode electrode, the signal line is connected with the input cathode, anode first two series, and then the arbitrary power supply negative two negative one.
