Can anyone explain the pros and cons for the use of 4-20mA and 0-5v, 10v signals.

 

4-20mA current signals are used where you want a two wire connection over a long distance and need to minimize interference, since it has good common-mode voltage noise rejection. It also allows both signal and power for remote sensors to be transmitted over the same two wires.

0-5V or 10V single-ended voltage signals are typically send for short distances within an electronic box where common-mode noise is not a problem

 

Thanks for the info. I have a 20 m run through twisted pair cable s
o 4-20mA it is

 

Hello,

An other advantage of the 4-20 mA system, is that you can see a wire break.
If there is a wire break, no current will be present.

Bertus