Hello everyone, I have a 4 to 20ma reading from a pressure sensor that is going to a controller out in the field. I also need to read this signal on the plc for monitoring purposes. What would be the best way to make this happen without affecting the signal going to the controller? For the PLC I would be using an allen bradley 1794-ie8. Thanks in advance for the help.
4 to 20ma reading
- Thread starter cranfob
- Start date
jaden
Member
If your total resistance is not too high, you can put the PLC card in series. Applied voltage divided by Total resistance must be 20 ma. or greater.
These work like a charm!!
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https://www.asi-ez.com/member/~ASI4...v82T1pwcpu5v6UxfT2tN7ggEIs39R7qjQwaAhXn8P8HAQ
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