Rockwell Automation 1757-SWKIT5000 ProcessLogix R500.1 Installation and Upgrade Guide - Manual (Page 232)

Publication 1757-IN500A-EN-P - September 2002
9-6 New Functions and Features
1756-DNB DeviceNet Interface Module
The 1756-DNB:
• provides a communication bridge between ControlNet and DeviceNet
• utilizes the Rockwell 1756 form factor, which is native to ProcessLogix
• can be located in either the ProcessLogix Controller Rack or I/O Rack
• supports the three DeviceNet baud rates: 500 KBps, 250 KBps and
125KBps.
• is configured from a PC running the RSNetWorx for DeviceNet
configuration tool connected to either DeviceNet through a 1770-KFD
Interface Module or ControlNet through a CNB.
• input and output messages from/to the various DeviceNet devices are
bundled at the ControlNet level into 2 assemblies (data objects) which
are available for transport across ControlNet from/to the 1757-PLX52
Controller:
• as configured with the DeviceNet network configuration, all input
data messages (from DeviceNet input devices) are packed into a 496
byte input assembly. Input data is bound from input devices to the
1757-PLX52 Controller.
• as configured with the DeviceNet network configuration, all output
data messages (to DeviceNet output devices) are packed into a 492
byte output assembly. Output data is bound from the 1757-PLX52
Controller to the output device.
1757-ABRIO
The 1757-ABRIO allows Rockwell Automation controllers (ProcessLogix or
ControlLogix) to communicate with existing Allen-Bradley analog 1771-RIO.
The module acts as an Remote I/O scanner.