Siemens Simatic S7-1500R System Manual page 45

System overview
2.4 Communication
Advantages of system IP addresses over device IP addresses
● Targeted communication of the communication partner with the primary CPU.
● The S7-1500R/H redundant system can continue to communicate over a system IP
address even if the primary CPU fails.
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 2-15
Reference
You can find more information on the system IP address in the S7-1500R/H redundant
system in the PROFINET (http://support.automation.siemens.com/WW/view/en/49948856)
function manual.
44
Example: Communication of the S7 1500R/H redundant system over the system IP
address X2
S7-1500R/H redundant system
System Manual, 10/2018, A5E41814787-AA