Siemens Simatic S7-1500 - Failure of the Two PROFINET Lines in PROFINET Ring 1 at the Primary CPU with R1 Devices

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