Operating hardware
4.4 Media redundancy
CP 1604 / CP 1616
76
Operating Instructions, 02/2017, C70000-G8976-C218-08
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How do I configure media redundancy in a ring topology?
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How does "MRP" work and how is it engineered and configured?
4.4.1
General description
4.4.1.1
Options of media redundancy
Options of media redundancy
There are various options available to increase the network availability of an Industrial
Ethernet network with optical or electrical linear bus topologies:
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Mesh networks
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Parallel connection of transmission paths
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Closing a linear bus topology to form a ring topology
4.4.1.2
Media redundancy in ring topologies
Structure of a ring topology
Nodes in a ring topology can be external switches and/or the integrated switches of
communications modules.
To set up a ring topology with media redundancy, you bring together the two free ends of a
linear bus topology in one device. Closing the linear bus topology to form a ring is achieved
with two ports (ring ports) of a device in the ring. This device is the redundancy manager. All
other devices in the ring are redundancy clients.
Figure 4-18 Devices in a ring topology with media redundancy
