Control Polarity with Omega Onion and 4-20mA Current loop Receivers

[Snart Caleb]

Hi I am working on automation project in which I want to control the polarity of the multiple devices by using at same time 4-20mA industrial sensor
Model 642/643/647/648 gives DC output with the help of 4-20mA current loop receiver output interfacing with Omega Onion

Kindly suggest me with hardware and any reference code and also wanted to control the PWM (either in forward or reverse polarity)

Is there any one who has good experience in this field ??

[György Farkas]

@Snart-Caleb If you don't mind this is a live link for one of the above sensors: Model 642A01 4-20 mA Output Velocity Sensor

That 4-20mA current loop receiver board of National Control Devices "converts" the current loop to I2C.

This project might help you a little: Omega2 with Industrial 4-20mA Sensors

[Robson Jhon]

Hey @Snart-Caleb
some of the topics will also help you alot regarding relay expansion and PWM expansion will help you please check, The current loop receiver mentioned by you previously is use to read the signal not control, controlling work will be done by Onion Omega and you have to make the code as per your requirement