Issue
CX controller going offline or exhibits intermittent communications problem.
When the Infinet bus is disconnected from the controller the problem goes away.
Environment
All CX controllers that support Infinet field bus.
Cause
Malfunctioning infinet device disrupts the Infinet bus and brings down parent CX controller.
Resolution
Follow standard Infinet troubleshooting techniques to identify offending field bus device and remove/replace.