Siemens SIMATIC S7-1500R/H Manual do equipamento - Página 15
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⑤
Location of the synchronization modules (not visible in graphic)
⑥
Redundancy connections (fiber-optic cables)
⑦
PROFINET cable (PROFINET ring)
Figure 3-1 S7‑1500H configuration example (with PROFINET ring)
NOTE
Standard rail adapter
You mount the CPUs on a standardized 35 mm rail using the standard rail adapter.
You can find information on mounting the standard rail adapter in the S7‑1500R/H redundant
system (https://support.industry.siemens.com/cs/ww/en/view/109754833) System Manual.
Principle of operation
One of the two CPUs in the redundant system takes on the role of CPU for process control
(primary CPU). The other CPU takes on the role of the following CPU (backup CPU). The role of
the CPUs can change during operation. All relevant data is synchronized from the primary
CPU to the backup CPU via the fiber-optic cables of the redundancy connections.
Synchronization between the primary CPU and backup CPU ensures fast switching between
CPUs in the event of a primary CPU failure. If the primary CPU fails, the backup CPU retains
control of the process as the new primary CPU at the point of interruption.
The redundancy connections consist of two fiber-optic cables, which directly connect the
CPUs via plug-in synchronization modules.
Additional information
You can find a detailed description of the operation and design of the S7‑1500H redundant
system in the system manual for Redundant System S7-1500R/H
(https://support.industry.siemens.com/cs/ww/en/view/109754833).
3.3
Hardware properties
Article number
6ES7517-3HP00-0AB0
CPU 1517H-3 PN (6ES7517-3HP00-0AB0)
Equipment Manual, 11/2022, A5E42011886-AD
Product overview
3.3 Hardware properties
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