Siemens SIMATIC S7-1500 System Manual page 78

Configuration PROFINET ring with S2 devices, switched S1 de-
versions vices
Configuration
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limits
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Central modules
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Comparison of S7-1500 standard system and S7-1500R/H
The table below sets out the key features of comparable CPUs of the S7-1500 automation
system and of the S7-1500R/H redundant system.
Table 5- 2 S7-1500 and S7-1500R/H comparison
Support for central I/O
Configuration control
Web server
CPU redundancy
System redundancy S2
System redundancy R1
S1 device
Isochronous mode
Shared Device
Operation as I-device
IRT
MRP
MRPD
OPC UA server
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF
S7-1500R
In the PROFINET ring: Max. 50 PROFINET de-
vices, including R-CPUs (max. 16 PROFINET
devices recommended)
In the PROFINET ring and separated with
switches (additional line topology): maximum
of 64 IO devices
Maximum 2 communications processors
CP 1543-1 per R-CPU via U-connector
Maximum 2 system power supply modules per
R-CPU via U-connector
CPU 1513-1 PN
CPU 1515-2 PN
CPU 1517-3 PN/DP
✓
✓
✓
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✓
✓
✓
✓
✓
✓
✓
✓
5.1 What is the S7-1500R/H redundant system?
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S7-1500
CPU 1518F-4
PN/DP
✓
✓
✓
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✓
✓
✓
✓
✓
✓
✓
✓
S7-1500H
PROFINET networks with S2 devices, switched
S1 devices
PROFINET networks with R1 devices
PROFINET networks with R1 devices, S2 devic-
es, switched S1 devices in a combined topolo-
gy
Configuration without additional devices
PROFINET ring: Max. 50 PROFINET devices
(including H-CPUs)
PROFINET network (ring, line or combined
topology): maximum of 256 IO devices
Maximum 6 communications processors
CP 1543-1 per H-CPU via active backplane bus
Maximum 2 system power supply modules per
H-CPU via active backplane bus
S7-1500R/H
CPU 1513R-1 PN
CPU 1515R-2 PN
CPU 1517H-3 PN
Only PS, CP 1543-1
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✓
1)
✓
✓
✓
2)
✓
3)
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System overview
CPU 1518HF-4 PN
Only PS, CP 1543-1
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✓
1)
✓
✓
✓
✓
3)
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✓
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✓
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