Failure Of The Two Profinet Lines In Profinet Ring 1 At The Primary Cpu With R1 Devices - Siemens SIMATIC S7-1500 System Manual

Application planning
6.4 Redundancy scenarios
6.4.7.6 Failure of the two PROFINET lines in PROFINET ring 1 at the primary CPU with R1
devices
Introduction
The following redundancy scenario describes the effects in case of a defect of both PROFINET
lines in PROFINET ring 1 at the primary CPU with R1 devices.
Failure scenario
①
②
③
④
⑤
⑥
⑦
⑧
Figure 6-42
192
Primary CPU
Backup CPU
Two fiber-optic cables (redundancy connections)
PROFINET cable (PROFINET ring 1)
PROFINET cable (PROFINET ring 2)
PROFINET lines → interrupted
IO device ET 200SP HA
IO device ET 200SP
Failure of the two PROFINET lines in PROFINET ring 1 to the primary CPU.
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF