Application planning
6.6 Hardware configuration
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF
227
Figure 6-61 Assignment of slot addresses in the R-CPUs (configuration example)
Figure 6-62 Assignment of slot addresses in the H-CPUs (configuration example)
Maximum number of PROFINET devices, IO devices in the redundant system
The table below shows the maximum number of PROFINET devices, IO devices in the
redundant system.
Table 6- 6 Number of PROFINET devices, IO devices in the redundant system
Maximum number of devices Maximum number of
Maximum number
Maximum number of PROFINET devices in the
PROFINET ring of the R/H system
The maximum number includes configured switches,
S7-1500R/H CPUs, S7-1500 CPUs (as of V2.5), HMI
devices and IO devices. It does not include media
16)
1)
Maximum number of connectable IO devices at
the R/H CPUs
2)
1)
Recommendation: The number of devices in the PROFINET ring affects the availability of the S7-
1500R system. The number of PROFINET devices including R-CPUs in the PROFINET ring should not
exceed 16. If you operate significantly more devices in the PROFINET ring, the availability is re-
duced.
The technical specifications in the documentation are based on the recommended maximum of 16
PROFINET devices in the ring in S7-1500R.
2)
The maximum number includes connected DP Devices at the IE/PB LINK HA.
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