Functions
5.4 Media redundancy (ring topologies)
PROFINET with STEP 7
Function Manual, 05/2021, A5E03444486-AL
189
Topology
The following screen shows the redundant coupling of 2 MRP rings.
Redundancy: If the primary connection (primary link) between the two rings is interrupted,
the secondary connection (secondary link) takes over the data exchange between the rings
after a short reconfiguration time.
①
Primary MIC
②
Media Redundancy Interconnection Manager (MIM)
③
Secondary link
④
Secondary Coupled MIC
⑤
Primary Coupled MIC
⑥
Primary link
Figure 5-47 Example: Redundant connection of 2 rings with MRP interconnection
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