Bag filler, the discharge gate solenoid stopped firing this morning. 1756-OB16E in slot 5, point 12, on a 1756-L62.
Online the rung is true and Local:5:O.Data.12 is 1, but the electrician put a meter on the terminal and reads 0V to common. Module OK green, no yellow triangle, no fault in the tree. I checked it with a force on the output and it's still 0V, and when we moved the solenoid wire over to point 3 the gate fires fine. Back on 12, nothing.
There's a red LED on the front of the module I've never seen lit before. Can we get by on point 3 until a new module comes in, or is that a bad idea? And that red LED, I guess that's telling me something I ought to sort out before I leave it sat on point 3?
That red LED is the fuse. Try point 9.