Siemens SIMATIC S7-1500 System Manual page 273

Wiring
8.8 Connecting interfaces for communication with S7-1500R
Procedure
To connect the PROFINET ring at SIMATIC S7-1500R, follow these steps:
1. Swing the front cover on the R-CPUs up.
2. Plug the PROFINET cable RJ45 connectors into the RJ45 sockets at PROFINET interfaces X1
P2R on the two R-CPUs.
Figure 8-6
272
PROFINET interface X1 P2R: Connecting R-CPUs (bottom view)
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF