User manual

Publication ENET-UM001I-EN-P - January 2010 27
EtherNet/IP Overview Chapter 1
Bridge Across Networks
Some EtherNet/IP modules support the ability to bridge or route
communication through devices, depending on the capabilities of the platform
and communication devices.
You have a bridge when you have a connection between communication
devices
on two networks. For example, this bridge device has both
EtherNet/IP and DeviceNet connections, enabling Device 1 on the
EtherNet/IP network to communicate with Device 2 on a DeviceNet network
through the bridge.
Bridge Device
Here, a workstation configures a drive on a DeviceNet network and bridges
EtherNet/IP networks to reach the drive.
IMPORTANT
The update time of local I/O modules may increase when
bridging messages.
EtherNet/IP modules do not support the transfer of data to and
from I/O modules across two or more segments of any network.
Bridge
EtherNet/IP
DeviceNet
Switch
Device 1
Device 2
CIP Message Bridging
CIP messages that originateon this network Can bridge to this network
EtherNet/IP ControlNet DeviceNet RS-232 Serial
EtherNet/IP Yes Yes Yes Yes
ControlNet Yes Yes Yes Yes
RS-232 Yes Yes Yes Yes