User manual

Module Description 1-2

Theory of Operation

The BridgeWay provides centralized data storage, the “PassageWay

”, for data

that is shared between the DeviceNet and Ethernet networks. Data is placed into

the PassageWay by one network interface, allowing the data to be read through

the other network interface.

The BridgeWay appears as a single device on either network using standard proto-

col mechanisms. No special, or extended, protocol features are required of the

devices on either network to read or write the data flowing through the Passage-

Way; all cross-network activity is transparent to the devices on either network.

Figure 1-1 BridgeWay PassageWay Operation

Ethernet

DeviceNet

PassageWay

Input

Table

Output

Table

Input Data

Output Data

Input Data

Output Data