Siemens Simatic S7-1500 - Interrupts and Diagnostics; Interrupts and Diagnostics of the CPU Part; Interrupts and Diagnostics of the Analog On-Board I;O

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
Service available over:
PROFINET
inter-
face X1
PROFINET
inter-
face X2
1)
PROFINET
inter-
face X3
2)
System IP
address on
X1, X2 and
X3 interfac-
es
Virtual interface W1
Device IP
address
Device IP
address
Device IP
address
Device IP
address
System IP
address
PROFINET IO
✓
---
---
---
---
---
MRP (Media Redundancy Proto-
col)
✓ --- --- --- --- ---
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)
✓
S7 routing
✓
✓
✓
---
---
---
IP forwarding
✓
✓
✓
✓
✓
✓
Time synchronization
✓
✓
✓
---
✓
---
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.