Siemens SIMATIC S7-1500 System Manual page 67

Configuration example
The figure below shows a configuration in which the S7‑1500R/H redundant system
communicates with other devices over the system IP address X2. The other devices are
connected to the S7‑1500 redundant system over the X2 PROFINET interfaces.
Figure 4-26 Example: Communication of the S7 1500R/H redundant system over the system IP address
X2
Reference
You can find more information on the system IP address in the S7‑1500R/H redundant system
in the Communication (https://support.industry.siemens.com/cs/ww/en/view/59192925)
function manual.
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD
System overview
4.4 Communication
67