• mr-controllino

    April 16, 2019 at 5:43 am

    Hello Piotr,

    Yes this is possible.

    Of course, you can define the IO so it is a 4-20mA.

    The reason why 4-20mA exist instead of 0-20mA is because then you have a very define area 0-4mA where you have “0”.

    Imagine a Motor Driver controlled with 0-20mA … and for some reasons you have 0,1V on the line or 0,2V … not perfectly 0,0V … then the motor controller could think that he should drive with 0,5-1%. So, you define a very clear area 0-4mA where the motor driver is at 0%.