Redundant Adapter Pair mode displays
The
icon indicates the I/O modules are redundant pair.
Network Browser
supports browsing and configuring 5015 and 1756-EN4TR adapters
in Redundant Adapter Pair (RAP) mode. The redundant adapters will be automatically listed
together in the Network Browser
at the location determined by the lowest IP address.
The I/O modules in a chassis under these adapters are also automatically grouped when they
are redundant pair. The 
In this mode, if one of the adapters or I/O modules is offline,
icon appears on the left, indicating the device's offline status.

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