PROFINET
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12.3 MRP (Media Redundancy Protocol)
MRP is a standardized protocol according to IEC 62439.
It describes a mechanism for media redundancy in ring topologies.
A Media Redundancy Manager (MRM) checks the ring topology of a PROFINET network defined by
the network configuration for functionality. All other network nodes are Media Redundancy Clients
(MRC).
Fig. 18: HW Config - Port setting (at one example port)
NOTE
Detailed information about MRP in PROFINET can be found on the homepage of the PRO-
FIBUS
user organization under
www.profibus.com.
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