Siemens SIMATIC ET 200AL - Page 1119

Functions
5.4 Media redundancy (ring topologies)
PROFINET with STEP 7 V15
172 Function Manual, 12/2017, A5E03444486-AH
The following figure shows Ring 1 (mrpdomain-1). The participants of the mrpdomain-1 are
the PROFINET interface of the CPU as the "Client" and the MRP interface 1 of the
PROFINET interface of the switch as the "Manager".
Figure 5-42 Ring 1
The following figure shows Ring 2 (mrpdomain-2). The participants of the mrpdomain-2 are
the PROFINET interface of the IO device as the "Client" and the MRP instance 2 of the
PROFINET interface of the switch as the "Manager".
Figure 5-43 Ring 2