Dale had tried everything. He’d power-cycled the VFD. He’d swapped the photo-eye. He’d even given the motor a hard whack with a rubber mallet—his go-to for mechanical stubbornness. Nothing.
He smiled grimly. RSLogix hadn’t fixed the machine. But it had told him the truth. rs logix
Dale traced the logic back. Upstream. Upstream further. Through a seal-in branch. Through a motor overload relay tag. Through a safety interlock from the cage door that should have been welded shut ten years ago. Dale had tried everything
“Alright, old man,” he muttered to the screen, “show me where you’re lying.” ” he muttered to the screen
XIC Conveyor7_Run_Permissive B3:0/14
The tag comment read: "High-pressure sprayer interlock - disables conveyors during cleaning."