100 Rockwell Automation Publication 1756-UM001M-EN-P - February 2012
Chapter 5 Communication Networks
ControlLogix DeviceNet Bridge Module and Linking Devices
This table lists the available ControlLogix DeviceNet bridge module and linking
devices that can be used with the DeviceNet network.
Software for DeviceNet Networks
This table lists software that is used with the DeviceNet networks and modules.
Connections Over DeviceNet Networks
The ControlLogix controller requires two connections for each 1756-DNB
module. One connection is for module status and configuration. The other
connection is a rack-optimized connection for the device data.
ControlLogix DeviceNet Module Memory
The 1756-DNB module has fixed sections of memory for the input and output
data of the DeviceNet devices on the network. Each device on your network
requires either some input or output memory of the scanner. Some devices both
send and receive data, so they need both input and output memory. The 1756-
DNB module supports up to add the following:
• 124 DINTs of input data
• 123 DINTs of output data
Table 24 - DeviceNet Communication Modules and Capabilities
Module/Device Is used to
1756-DNB • Control I/O modules.
• Communicate with other DeviceNet devices (via messages).
1788-EN2DN Link an EtherNet/IP network to a DeviceNet network.
1788-CN2DN Link a ControlNet network to a DeviceNet network.
Table 25 - Software for Use with DeviceNet Networks
Software Is used to Required/Optional
RSLogix 5000 • Configure ControlLogix projects.
• Define DeviceNet communication.
Required
RSNetWorxâ„¢ for
DeviceNetâ„¢
• Configure DeviceNet devices.
• Define the scan list for those devices.
RSLinx Classic or Enterprise • Configure communication devices.
• Provide diagnostics.
• Establish communication between devices.
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