The MRP (media redundancy protocol) is a data network protocol that allows rings of Ethernet switches to overcome any single failure with recovery time much faster than achievable with Spanning Tree Protocol.


Source: profinet.com - PROFINET SystemDescription


The MRP is more related to the slaves (and used switches).
→ make sure that the Profinet Slave does support this option!

How to:

  • Add all the slaves to the PN-Controller
  • Open the PN-Controller and open the Tab 'Topology'.
  • Configure the connected ports, so that a ring topology is set.
  • Open the TAB Media Redundancy, and set the MRP configuration for the slaves / controller


See also....