waterguy Posted November 13, 2015 Report Share Posted November 13, 2015 Hello everyone, I am new to Unitronics and I am facing a probem with a part of my ladder program. I have attached two images illustrating the problem. Basically, if we want O7 to be Reset, I7 and/or I17 need to be OFF and I16 need to be ON. The problem I am facing is that if I17 is OFF and I16 is ON power flows through the contacts and resets O7 but if I7 is OFF instead of I17, power does not flow. The same thing happens with the following lines i.e. power will flow through I17,I16,I19 to energize O3 but not through I7,I6,I19. Power will flow through I17,I16,I19,I18 to energize O2 but not through I7,I6,I9,I18. I have reproduced the same piece of ladder in an empty file and alone it works fine. I tried to break it to more rungs and it behaves in the same way. I don't understand why this is happening because electrically this should work. Any help will be much apprecited. Quote Link to comment Share on other sites More sharing options...
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