Siemens SIMATIC S7-1500 System Manual page 167

Application planning
6.3 Configuration versions
Configuration of S7-1500H with R1 devices and Y-switch in a line topology
①
②
③
④
⑤
⑥
⑦
⑧
⑨
Figure 6-24
166
CPU 1
CPU 2
Two fiber-optic cables (redundancy connections)
PROFINET cable (line topology 1)
PROFINET cable (line topology 2)
IO device ET 200SP HA (with system redundancy R1)
Y-switch (SCALANCE XF204-2BA DNA)
PROFINET cable (PROFINET ring)
ET 200SP IO device (with system redundancy S2) or switched S1 device
Configuration of S7-1500H with R1 devices and Y-switch in line topology
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF