Siemens SIMATIC S7-1500R/H Manual de equipamiento - Página 12
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Product overview
3.2 Configuration and operating principle
You set up the PROFINET ring or the PROFINET network via the PROFINET interfaces X1 P1R
and X1 P2R of the CPUs (as of FW version V3.0: e.g. as line or mixed topology).
①
Optional load current supply
②
First CPU
③
Mounting rail with integrated DIN rail profile
④
Second CPU
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
12
CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 11/2022, A5E49868646-AB