User manual

EtherNet/IP 6-11

CIP Bridging

The EtherNet/IP protocol provides bridging capabilities to allow a device on the

EtherNet/IP network to access a device on the DeviceNet network through

Explicit Messaging. The BridgeWay Ethernet to DeviceNet Gateway allows a

device on EtherNet/IP to send an Explicit Message to a device on DeviceNet and

receive its response. In this way the device on EtherNet/IP can directly access the

objects of any DeviceNet device to configure or access data.

To send an Explicit Message to a DeviceNet device, the Unconnected Send or

Forward Open services of the Connection Manager Object are used. The the MAC

ID of the destination DeviceNet node along with a network port address must be

used in the Unconnected Send and Forward Open service. Refer to Volume 1,

Chapter 10 of the EtherNet/IP specification for further information on CIP Bridg-

ing.

The BridgeWay supports multi-hop bridged paths. If a routing path routes the

message through the local DeviceNet network to another network, via another

bridge, the BridgeWay will correctly route the message to the next bridge using an

Unconnected Send service over DeviceNet.

Note: The BridgeWay does not support message routing from DeviceNet to Eth-

erNet/IP.

Port Addresses

Port

Address

Network

2 EtherNet/IP

3 DeviceNet

Table 6-9 Port Addresses