Digital Output Module DO562, Coil doesn't get on with NO variable. Please help,its urgent.
Hello Everyone, I am new to codesys programming and working project with PM554-ETH. I have created event based 4 tasks based on different process required by machine. The problem I am facing now that Digital output does not get on when variable "TEST_IP" goes ON, but for NC contact "test1" it gets ON because of direct contact with power. I have attached image of ladder for better understanding. Also, why when I force a input "TEST_IP", it show half blue rectangle and not like NC contact "test1"? is it the reason?