Siemens SIMATIC S7-1500 Function Manual page 327

Communication with the redundant system S7-1500R/H
13.1 System IP addresses
Requirements
● The interface of the communication partner and the PROFINET interfaces of the two
CPUs are located in the same subnet.
● The interface of the communication partner is connected to both CPUs, each via the
same interface (e.g. X2).
● The system IP address for the interfaces of the S7-1500R/H system is enabled.
Communication via the system IP address X2
If the CPUs of the S7-1500R/H redundant system have two PROFINET interfaces,
preferably use the PROFINET interface X2 for communication with other devices.
The following figure shows a configuration in which the communication partners are
connected via the respective PROFINET interfaces X2 with the CPUs of the redundant
system S7-1500R/H.
①
②
③
Figure 13-1
326
Open User Communication between a different CPU and the S7-1500R/H redundant system
HMI communication with the S7-1500R/H redundant system
Open User Communication between the S7-1500R/H redundant system and a PC
Example: Communication of the S7-1515R redundant system via the system IP address
X2
Function Manual, 11/2019, A5E03735815-AH
Communication