This sample standalone network builds
upon the two-subnet example, which includes
communications on different subnets (red and green). In this case,
the connections between the local racks and dual-ring switches facilitate
redundant connections between the subnets:
Legend:
1 A dual-ring switch
connected to the Ethernet port of a BMENOC0321 module on the local rack creates a
redundant link to the control network (red).
2 A BMENOR2200H module connects the local rack to distributed equipment (DNP3 devices, HMI) via the Ethernet backplane connection using redundant links.
3 A BMENOS0300 embedded switch module
connects the local rack to distributed equipment (DNP3 devices) using redundant links.
4 The service
port of a BMENOC0321 module allows distributed
equipment (DNP3 devices, HMI) to communicate
with the control network using redundant links.
