Rockwell-automation Ethernet Design Considerations Reference Manual Manual de usuario descargar pdf (Pagina 20)

20 Rockwell Automation Publication ENET-RM002C-EN-P - May 2013

Chapter 1 EtherNet/IP Overview

Bridge across Networks

Some EtherNet/IP communication 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, the 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.

The bridge device can be an EtherNet/IP-to-DeviceNet bridging device or a

Logix5000 system with an EtherNet/IP communication module and a

DeviceNet communication module.

In the following example graphic, a workstation configures a drive on a

DeviceNet network and bridges EtherNet/IP networks to reach the drive.

CIP messages originating on 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

IMPORTANT

You can bridge between devices on different networks for only messaging.

You cannot bridge from one network to another for I/O control or

produced and consumed tags. This restriction applies regardless of whether

the two networks are either of the following:

• Same type, such as an EtherNet/IP network to an EtherNet/IP network

• Different types, such as an EtherNet/IP network to a ControlNet network

Bridge

EtherNet/IP

PanelView Plus

Terminal

DeviceNet

Drive

Switch

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Rockwell-automation Ethernet Design Considerations Reference Manual Manual de usuario Pagina 20