Hello, I'm working with a micrologix 1500 with a 1769 16 point input card. The problem I'm having is that I'm getting an input when there is no signal coming from PX switch. I can remove the input wire off the terminal and I still have the input light lit and when viewing it on the laptop, XIC contact is showing that it is on. The input is sourcing and when I do give it a signal the input stays on. All other inputs are working correctly. Has anyone experienced this problem before. If I down load the code again will it clear it up. Thanks for the help.