Siemens SIMATIC PCS 7 - AS 410 H on Redundant, High Availability Plant Bus

4.3.4.4 AS 410H on redundant, high availability plant bus
Functionality
The plant bus connects automation systems to servers (OS server, Route Control server).
An automation system with a SIMATIC S7 410H-type CPU can be connected to a redundant,
high availability plant bus.
In the event a plant bus fails, the two Ethernet connections of the CPU allow the plant bus to
operate without restrictions. If one of the plant buses fails, communication is maintained over
the second plant bus.
Configuration - AS 410H on redundant, high availability plant bus
The figure below shows the basic structure of the redundant, high availability plant bus with
an AS 410H. The AS 410H also has 2 Ethernet connections and can be connected to the
redundant, high availability plant bus.
● Bus1 shows the functionally correct configuration (shared switches for AS and OS).
● Bus2 shows the typical configuration in PCS 7 plants (separate switches for AS and OS).
Note
Check the redundancy behavior of the individual components during commissioning.
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High availability solutions in PCS 7
4.3 Solutions for communication
High Availability Process Control Systems (V9.0)
74 Function Manual, 05/2017, A5E39221836-AA