Application planning
3.5 Failure scenarios
S7-1500R/H redundant system
System Manual, 10/2018, A5E41814787-AA
79
3.5.3.2
Two cable interruptions in the PROFINET ring in S7-1500R within
≤ 1500
ms
Introduction
The following failure scenario describes the effects of two cable interruptions in the
PROFINET ring. In this failure scenario, the time between the two cable interruptions is
≤
1500 ms.
Failure scenario
①
Primary CPU
②
Backup CPU
③
PROFINET ring → interrupted at two points
④
IO device ET 200MP
⑤
IO device ET 200SP
Figure 3-17 Two cable interruptions
in the PROFINET ring (within ≤
1500 ms)
Summary of Contents for Simatic S7-1500H
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