CONTROLNET communications have been introduced to Rockwell Automation 's family of Allen-Bradley CompactLogix controllers. The CompactLogix 1769-L35CR and 1769-L32C controllers offer integrated ControlNet network connectivity, which eliminates the need for modular communications, simplifies programming and cuts installation and configuration costs.
The controllers have an easy-to-use, front-accessible Network Access Port that speeds configuration, while an integrated ControlNet port mounted on the bottom of the controller allows out-of-the-way cable installation and reduces connector strain for increased reliability.
The integrated ControlNet connectivity means that CompactLogix is configured automatically when users apply power to the controller, eliminating the steps otherwise required to install, configure, and add a scanner module to the programming tree. Programming is simplified, since both ControlNet and DeviceNet can be configured from one central access point. Using a single programming software package, users can configure the ControlNet network and bridge from ControlNet over to DeviceNet to configure any devices on DeviceNet.
The Allen-Bradley CompactLogix 1769-L35CR has dual integrated ControlNet communications ports, permitting redundant communications for more complex applications. It supports as many as 30 local I/O modules and offers 1.5MB programming memory for powerful capacity in a small package. With a single ControlNet port, the CompactLogix 1769-L32C is designed for smaller scale applications, supporting as many as 16 local I/O modules and providing 750kB of programming memory.