Siemens SIMATIC PCS 7 - Communication; Failure of Redundant Bus Components

7.3 Communication
7.3.1 Failure of redundant bus components
Functionality
As soon as a fault occurs on a transmission path, the second transmission path takes over
and forwards the signals.
Failure scenarios
The following problems can occur on a bus component:
● Defective bus component (e.g., CP, coupler, AFD, AFS, cable)
● Problem on a bus line (e.g., overload, wire break)
Additional information
● Manual
SIMATIC Net Twisted Pair and Fiber-Optic Networks
● Manual SIMATIC Net PROFIBUS Networks
● Manual SIMATIC; Communication with SIMATIC
● Operating instructions SIMATIC NET; Industrial Ethernet Switches SCALANCE X-200
● Operating instructions SIMATIC NET; Industrial Ethernet Switches SCALANCE X-300
● Operating instructions SIMATIC NET; Industrial Ethernet Switches SCALANCE X-400
Failure, switchover and reintegration of high availability components
7.3 Communication
High Availability Process Control Systems (V9.0)
204 Function Manual, 05/2017, A5E39221836-AA