Allen-Bradley ControlNet Compact GuardLogix 1769, User Manual, Page: 12 / 100

Chapter 1 ControlNet Overview
Figure 2 - Drive Configuration on a DeviceNet Network
2
6
5
P WR
S TS
PORT
4
Item Description Item Description
1 Workstation 4 Drive
2 PanelView terminal 5 DeviceNet network
3 Bridge 6 ControlNet network
IMPORTANT
The performance of a CompactLogix controller on a ControlNet network
degrades significantly if you use the controller as a bridge. Target
bridging over a CompactLogix controller on a ControlNet network toward
applications that are not real-time dependent, such as RSLogix 5000
software program downloads.
In the example shown above, you can transfer messages from the DeviceNet
network through the Logix5000 controller to an RSView32 operator interface.
With a CompactLogix controller as a bridge, you can map the data into the
DeviceNet I/O image and then use RSLinx OPC to send the data to the
Logix5000 controller over the ControlNet network. This method conserves the
limited bridging resources of your CompactLogix controller.
12 Rockwell Automation Publication CNET- UM001E-EN-P - June 2016