Examples of applications
3.2 Redundantly coupled networks
Industrial Ethernet
System Manual, 09/2019, C79000-G8976-C242-10
109
router. Because the virtual addresses are used unchanged, the ARP table must not be
updated when the master router is changed.
The two connection paths to the production network between the devices
① and ③ as well
as
② and ④ are managed by means of s suitable routing protocol, such as OSPF.
Each automation cell is protected through a security communication processor (for example,
SIMATIC CP 1543-1) or an Industrial Security Appliance (for example, SCALANCE SC646-
2C).
Benefits
● Extremely high reliability through redundant coupling of the networks
● High data throughput through 10 Gbps technology of the SCALANCE XR552-12M used
in the production network
● Separation of networks through a firewall
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