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Guys,
I am really confused about 4-20 ma current loop 2 wire vs 3 wire...what is the difference?
Does the difference have anything to do with the sensor being powered separately or in loop?
In My case the sensor is a Gas detector and sends output to PLC Analog Input.So is the sensor being powered from the PLC Analog Input Card?
Thanks..i would really appreciate it if you could clear that up...
I am really confused about 4-20 ma current loop 2 wire vs 3 wire...what is the difference?
Does the difference have anything to do with the sensor being powered separately or in loop?
In My case the sensor is a Gas detector and sends output to PLC Analog Input.So is the sensor being powered from the PLC Analog Input Card?
Thanks..i would really appreciate it if you could clear that up...