374 Rockwell Automation Publication 193-UM015D-EN-P - February 2015
Chapter 9 EtherNet/IP Communications
Rockwell Automation also offers a line of managed and unmanaged
Allen-Bradley Ethernet Switches with its Stratix family of Ethernet switches. See
http://ab.rockwellautomation.com/Networks-and-Communications/Ethernet-
IP-Infrastructure for more information.
The E300 Electronic Overload Relay EtherNet/IP Communication Module also
supports an ethernet Ring topology in which all ethernet nodes are wired in series
with one another until a complete network ring is made as shown in Figure 50
.
The E300 Electronic Overload Relay EtherNet/IP Communication Module
supports Rockwell Automation's Device Level Ring (DLR) topology as a slave
device in which the EtherNet/IP network continues to communicate if one of
the network chains is disrupted
Figure 50 - Ring Ethernet Topology
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