Convert analog current to analog voltage input?

[>>>j<<<]

Hello

My analog sensor outputs 4-20mA only.

My analog PLC input sees 0-10V only.

How can I make this work?

I tested out a different sensor that can switch between an analog current output and an analog voltage output and the PLC could see the change in analog voltage.

Thanks!

 

[drbitboy]

10V/20mA = 10000mV/20mA = 500Ω

https://www.support.aceautomation.eu/knowledge-base/convert-4-20-ma-to-0-10-v-using-a-resitor/

 

[>>>j<<<]

Thanks Drbitboy. This worked and we're in business.

 

[Corsair]

Ohms and Watts law stuff

A quarter-watt resistor cuts it kind of close. Cool resistors tend to be more stable - I'd use a 1-watt for this.

Remember that the PLC will have to be rescaled with a 500 ohm resistor to allow for 2 volts instead of 0 volts at the bottom end of the range.

Ideally you want a 1 Percent or better precision resistor. The analog reading accuracy can be no better than the resistor value - unless you tweak the scaling to match your installed resistor.

 

[James Mcquade]

i would use one that is a precision resistor, <.5% . so buy several if you can only get 1% ones and choose the one closest to 500 and do some scaling.
the more accurate the resistor, the better.
james