OkiePC I am fairly new to plc programming and was wondering how the 1 state change per scan bit works I can see it gets latched but not unlatched. is it similiar to using the one shot bit? Ive attatched my first two programs that i have wrote for equipment I built. I know there not as good as they could be but they work. I tried to post a video but it wouldnt let me Thanks to all who share thier knowledge with us you guys are great PICK AND PLACE VER 8.RSS COUNTING CONVEYORver3.RSS