xenu
Member
I'm using productivity 1000 plc for this. The process is simple i have a wheel with yarn wrapped around it made out of aluminum with evenly spaced screws tapped into it for a prox switch to detect rotation. the logic is simple if the prox switch is on for more than 3 seconds the machine will stop or if the prox switch is off for more than 3 seconds the machine will stop both indicate a broken yarn. I have 24 of these sensors on each machine but i am looking for a simpler way to write this. attached is an image of how i currently have 1 prox in the logic.