Failure Of A Switch (With Line Topology) In The Profinet Ring - Siemens Simatic S7-1500R System Manual

3.5.2

Failure of a switch (with line topology) in the PROFINET ring

Introduction
The following failure scenario describes the effects of a defective switch (with line topology)
in the PROFINET ring.
Failure scenario
①
②
③
④
⑤
⑥
⑦
⑧
Figure 3-15
S7-1500R/H redundant system
System Manual, 10/2018, A5E41814787-AA
Primary CPU
Backup CPU
PROFINET cable (redundancy connections, PROFINET ring)
IO device ET 200MP
IO device ET 200SP
Switch → failed
IO device ET 200SP
HMI device
Failure of a switch in the PROFINET ring (using S7-1500R as an example)
Application planning
3.5 Failure scenarios
75