Allen-Bradley CompactLogix Controllers

Introduction

Allen-Bradley 1769 CompactLogix Controllers are a cutting edge control system offering communication and I/O elements in a distributed control package.

The CompactLogix controller, part of the Logix family of controllers, provides a small, powerful, cost-effective system consisting of the following:

• RSLogix™ 5000 programming software
• Built-in communication ports for EtherNet/IP (1769-L32E and 1769-L35E only) and ControlNet (1769-L32C and 1769-L35CR only) networks
• A 1769-SDN communication interface module providing I/O control and remote device configuration over DeviceNet
• A built-in serial port on every CompactLogix controller
• Compact I/O modules providing a compact, DIN-rail or panel-mounted I/O system

Considerations for your CompactLogix System

• The CompactLogix controller is always the leftmost module in the system.
• The controller must be within four modules of the system power supply. Some I/O modules may be up to eight modules away from the power supply. See the documentation for your 1769 I/O modules for details.
• The 1769-L32E controller supports as many as 16 I/O modules and the 1769-L35E controller supports as many as 30 I/O modules. Both controllers can use a maximum of 3 I/O banks with 2 expansion cables.
• Each I/O bank requires its own power supply.
• Only one controller can be used in a CompactLogix system.
• A 1769-ECR right end cap or 1769-ECL left end cap is required to terminate the end of the communication bus.

Key Features

• Two EtherNet™/IP ports
• One USB port
• Support for local expansion modules
• Control of local and distributed I/O modules
• Use of 1784-SD1 or 1784-SD2 Secure Digital (SD) card for nonvolatile memory
• A battery is no longer necessary because of the internal energy-storage solution
Some CompactLogix 5370 controllers provide the following functionality:
• Built-in power supply
• Some combination of embedded digital, analog, and high-speed counter modules
• Support for Integrated Motion over an EtherNet/IP network
• Access to DeviceNet™ networks