Siemens SIMATIC S7-1500 System Manual page 88

Application planning
5.3 Configuration versions
S7-1500H configuration with R1 devices and Y-switch in the PROFINET ring
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
⑪
Figure 5-11 S7-1500H configuration with R1 devices and Y-switch in the PROFINET ring
88
CPU 1
CPU 2
Two fiber-optic cables (redundancy connections)
PROFINET cable (PROFINET ring 1)
PROFINET cable (PROFINET ring 2)
IO device ET 200SP HA (with system redundancy R1)
IO device ET 200SP (with system redundancy R1)
Switch
Y-switch (SCALANCE XF204-2BA DNA)
PROFINET cable (PROFINET ring 3)
ET 200SP IO device (with system redundancy S2) or switched S1 device
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD