System overview
5.4 Communication
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF
121
5.4.2 Integrated interfaces for communication
The table below provides an overview of CPU communication options in the S7-1500R/H
redundant system.
Table 5- 6 S7-1500R/H communication options
Communication option
PROFINET
inter-
PROFINET
inter-
1)
PROFINET
inter-
2)
System IP
address on
X1, X2 and
X3 interfac-
es
Virtual interface W1
Device IP
Device IP
Device IP
Device IP
System IP
MRP (Media Redundancy Proto-
✓ --- --- --- --- ---
LLDP (network topology detec-
tion)
PG communication for commis-
sioning, testing and diagnostics
HMI communication for operator
control and monitoring
3)
3)
3)
3)
Secure Open User Communica-
tion/Open User Communication
Data exchange via OPC UA as
server
3)
3)
3)
3)
S7 communication as server
3)
3)
3)
3)
Web API of the Web server
1)
Not with CPU 1513R-1 PN
2)
Not with CPU 1513R-1 PN, CPU 1515R-2 PN and CPU 1517H-3 PN
3)
Communication mainly over system IP address: If the communication partner uses a device IP address and the CPU with
this device IP address fails, communication between the communication partner and S7-1500R/H also fails.
More information
For more information on communication options, please refer to the Communication
(https://support.industry.siemens.com/cs/ww/en/view/59192925) Function Manual.