What does the Connection error bit indicate in the Modicon switch diagnostic DDT indicate?

Issue

Connection error bit indication

Product Line

Modicon Switch

Environment

EcoStruxure Control Expert

Resolution

The connection error is just monitoring the link status. If any port loses a link it will trigger the connection error. You can then look at the link status to see which port lost it's link.  You need to turn on the "Propagate connection error" in the switch configuration. It is under Diagnostics > Status Configuration > Device Status.

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