Vidmas30 Posted February 27, 2013 Report Share Posted February 27, 2013 Good day, Messed up a little bit.. There's V280 with IO-AI4-AO2 and signal from Masstrol MFC 4-20mA, sink. Never dealed with sink analog aoutput before. How should I connect it to IO4-AO2? As I think: +24V from MFC to AI (I) and 0V (sink) to AI (COM). The one thing that bothers: how it will work if all COM's are internally connected? Link to comment Share on other sites More sharing options...
MVP 2014 Simon Posted February 27, 2013 MVP 2014 Report Share Posted February 27, 2013 As I understand your description, one device will need to be isolated, either the Masstrol or the Unitronics, as you will need to inject a source of loop power somewhere. Since we know that the Unitronics is not fully isolated, then it comes down to the Masstrol. If that is not Isolated, i think the only option is to get an external isolation module. If you get the type that supplies loop power as well then you kill two birds with one stone. Link to comment Share on other sites More sharing options...
Vidmas30 Posted February 28, 2013 Author Report Share Posted February 28, 2013 Thank you, Simon, very much! I had a thought about signal separator and now I will surely use it Link to comment Share on other sites More sharing options...
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