4-20mA current loop multiplexing

R

Thread Starter

Rakesh

Hello everyone,

Could anyone suggest me some IC that could multiplex the 4-20mA current loop at the input of my processor? can any Analog Mux do the job?
 
You can convert the 4-20 ma into a voltage input by loading with a 250 ohms resistor. This will give you a 1-5 volts signal to your standard multiplexer. Normally you can not use a 4-20 ma multiplexing without breaking the current loop which can create fault on the source side as open loop.

regards,
sekar
 
llai mux is one kind of 32 points analog input processor. It is used as check the pv,not used as control.

I think my suggestion can help you.
 
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