Application planning
3.4 Redundancy scenarios
S7-1500R/H redundant system
70
System Manual, 10/2018, A5E41814787-AA
3.4.5.3
Failure of both redundancy connections and the PROFINET cable in the PROFINET
ring
Introduction
The following redundancy scenario describes the effects of a defect in each of the two
redundancy connections and in the PROFINET cable in the PROFINET ring.
In this redundancy scenario, the time between the redundancy connection failures is
> 1500 ms.
Redundancy scenario
①
Primary CPU
②
Backup CPU
③
Two fiber-
optic cables (redundancy connections) → interrupted
④
IO device ET 200SP
⑤
IO device ET 200MP
⑥
PROFINET cable (PROFINET ring) → interrupted
Figure 3-12 Failure of both redundancy connections and a PROFINET cable in the PROFINET ring
Summary of Contents for Simatic S7-1500H
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