UNICO2 Posted July 24, 2017 Report Share Posted July 24, 2017 Hi - I have been unable to recreate this problem however, one of our engineers said that when the sensor input goes over 20mA, the UIA-0800N value drops to less than 4mA in the Unilogic program/HMI display. Maybe like a protective mode or it knocks the entire rail offline - not sure. I measured the actual input as 21.62mA from the sensor on my PLC setup. The other engineer is using a different PLC setup with slightly different power and grounding. Specifically he is grounding the power supply COM to GND. Any ideas? Thanks! Link to comment Share on other sites More sharing options...
UNICO2 Posted July 28, 2017 Author Report Share Posted July 28, 2017 I think they had a loose connection so that the signal would go to zero mA or a short that would knock the rail off line... Link to comment Share on other sites More sharing options...
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