Rockwell Automation Ethernet Design Considerations Reference Manual - Manual (Page 54)

54 Rockwell Automation Publication ENET-RM002C-EN-P - May 2013
Chapter 3 Ethernet Infrastructure Features
Network convergence includes the following:
• After failure detection, ring supervisor unblocks blocked port
• Network configuration is now a linear topology
• Fault location is readily available via diagnostics
Once ring is restored, the supervisor hears the beacon on both ports and
transitions to normal ring mode by blocking one port.
POINT I/O
Disrtributed I/O ArmorPOINT I/O
Distributed I/O POINT I/O
Disrtributed I/O ArmorPOINT I/O
Distributed I/O
ControlLogix Controller
Stratix 8000
IE Switch
1783-ETAP
Forwarding
Active Ring
Supervisor
Forwarding
Link Failure
\ControlLogix Controller
Active Ring
Supervisor Forwarding
Beacon Beacon
Stratix 8000
IE Switch
ETAP
Announce Announce Blocking
POINT I/O
Distributed I/O ArmorPOINT I/O
Distributed I/O POINT I/O
Distributed I/O ArmorPOINT I/O
Distributed I/O