Allen-Bradley MicroLogix Series

The Allen-Bradley MicroLogix series, by Rockwell Automation, comprises a range of small programmable logic controllers (PLCs) designed for discrete and process control applications. Known for being affordable, easy to use, and reliable, the MicroLogix series is ideal for small-scale control applications.

Common Models:

MicroLogix 1000 Series: Basic and cost-effective, suitable for simple control applications.
MicroLogix 1100 Series: More powerful, featuring built-in analog I/O and Ethernet communication.
MicroLogix 1200 Series: High-performance with faster processing speeds and more I/O points.
MicroLogix 1400 Series: The most advanced, with built-in LCD display and data logging capabilities.

Key Features:

Affordable
User-friendly
Reliable
Modular Design
Supports Multiple Programming Languages
Extensive I/O Modules
Communication Capabilities

Applications:

Discrete Manufacturing
Packaging Machinery
Food Processing
Textiles
Printing
HVAC
Water Treatment

Components:

CPU: The core component that executes programs. Varying performance across different models.
Memory: Stores programs, data, and configurations, available in RAM, ROM, and flash types.
I/O Modules: Connects the controller to field devices, supporting digital and analog inputs/outputs.
Communication Ports: Enables connection to other devices like HMIs, drives, and PCs, supporting RS-232, RS-485, and Ethernet protocols.

Programming Languages:

Ladder Logic: A graphical language, easy to understand and use.
Structured Text: A text-based language, flexible and powerful, suitable for complex control algorithms.

Additional Information:

Release: The MicroLogix series was introduced in 1995 and quickly became a popular small PLC series.
Updates and Support: Rockwell Automation continually updates and improves the MicroLogix series and provides ongoing support and services.

The MicroLogix series offers an economical, user-friendly, and reliable PLC solution for a variety of small-scale control applications.