Configuring Media Redundancy - Siemens SIMATIC PROFINET Function Manual

Functions
5.4 Media redundancy (ring topologies)
5.4.2

Configuring media redundancy

Configuring MRP
Proceed as follows to create a PROFINET IO configuration with MRP in STEP 7:
1. Generate a ring via the port interconnections in the topology view. First interconnect the
devices to a line topology. Connect the unassigned port of the last device in the line with
the unassigned port of the first device.
The following example shows one CPU 1516-3 PN/DP and two interface modules
IM 155-6 PN HF that are interconnected in a ring in the topology view of STEP 7.
Figure 5-35
2. Select the PROFINET IO system in the network view.
3. In the Inspector window, navigate to "Properties" > "General" > "PROFINET" > "MRP
domains" in the "Ring interconnections" field.
This field shows you all the topological rings in the IO system with the associated MRP
domains.
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Configuring media redundancy
PROFINET with STEP 7 V14
Function Manual, 09/2016, A5E03444486-AG