Rockwell Automation Publication 1756-UM001M-EN-P - February 2012 99
Communication Networks Chapter 5
Figure 8 - ControlLogix DeviceNet Network Overview
In this example, the ControlLogix controller is connected to the DeviceNet
network and devices via the 1788-EN2DN linking device.
For more information about using DeviceNet modules and devices, see
DeviceNet Modules in Logix5000 Control Systems User Manual, publication
DNET-UM004
.
ControlLogix DeviceNet Module Features
The DeviceNet communication module provides these features:
• Supports messaging to devices (not controller to controller)
• Shares a common application layer with ControlNet and EtherNet/IP
networks
• Offers diagnostics for improved data collection and fault detection
• Requires less wiring than traditional, hard-wired systems
PWR
STS
PORT
MOD
NET A
NET B
ControlLogix Controller with
1756-ENBT Module
PowerFlex AC
Drive
Motor
Starter
Input/output
Devices
Sensor
Pushbutton
Cluster
Bar Code
Scanner
Indicator
Lights
DeviceNet Network
1788-EN2DN
CompactLogix Controller
FLEX I/O Adapter and
Modules
EtherNet/IP Network
Personal Computer
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