Rockwell Automation 2100-ENET CENTERLINE 2100 Motor Control Centers EtherNet/IP Network Adapter - Manual (Page 14)

14 Rockwell Automation Publication 2100-UM006A-EN-P - July 2013
Chapter 2 Install the Adapter
IGMP snooping constrains the flooding of multicast traffic by
dynamically configuring switch ports so that multicast traffic is
forwarded only to ports associated with a particular IP multicast group.
Switches that support IGMP snooping (managed switches) learn which
ports have devices that are part of a particular multicast group and
forward only the multicast packets to the ports that are part of the
multicast group.
Be careful as to what level of support a switch has of IGMP snooping.
Some layer 2 switches that support IGMP snooping require a router,
which could be a layer 3 switch, to send out IGMP polls to learn what
devices are part of the multicast group. Some layer 2 switches can use
IGMP snooping without a router sending polls. If your control system
is a stand-alone network or is required to continue performing if the
router is out of service, make sure the switch you are using supports
IGMP snooping without a router being present:
•
Refer to Appendix A for the number of CIP connections supported
by the 2100-ENET adapter.
• Verify that you have all required equipment. Refer to Required
Equipment on page 10 .
Connect the Adapter to the
End Device 1. Connect the circular connector end of the 2100-ENET
adapter-to-DeviceNet cable to the PORT connector on the bottom of the
2100-ENET.
2. Connect the DeviceNet connector end of the 2100-ENET
adapter-to-DeviceNet cable to the end device.
3. Configure the end device’s DeviceNet address to node 63 by following the
instructions provided in the appropriate end device user manual.
4. Configure the end device’s DeviceNet data rate to 500 Kpbs following the
instructions provided in the appropriate end device User Manual.