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Rockwell Automation Publication 1769-UM021G-EN-P - October 2015
Chapter 9
Use I/O Modules with CompactLogix 5370 L3 Controllers
End Cap Detection and Module Faults
End cap detection is performed through the last module on a 1769 Bus. If that
module experiences a fault such that it cannot communicate on the 1769 Bus, the
following events occur:
•
End cap detection fails
•
Controller faults