Description

Allen-Bradley 2080-LC20-20QWB Micro820 Programmable Logic Controller

The 2080-LC20-20QWB is a high-performance micro-PLC featuring integrated Ethernet and serial communication, designed to provide cost-effective control for standalone machinery and remote automation tasks.

Technical Operational Overview

The 2080-LC20-20QWB functions as the central intelligence for micro-automation environments within the Allen-Bradley Micro820 family. This controller specifically manages small-scale processes by utilizing 20 integrated I/O points, consisting of 12 digital inputs and 7 relay outputs, alongside essential analog capabilities. Operating on a flexible 120/240V AC power source, the unit provides a regulated internal 24V DC supply to power its onboard logic, effectively reducing the need for additional external power components in tight enclosures.

Communication versatility sets this module apart from standard micro-PLCs. The 2080-LC20-20QWB supports multi-protocol networking through its embedded 10/100 Base-T Ethernet port and a non-isolated RS232/RS485 serial port. These interfaces allow the controller to communicate via EtherNet/IP, Modbus TCP/RTU, and CIP Serial. Consequently, users can easily integrate the device into larger SCADA systems or link it directly to Human Machine Interfaces (HMI) like the PanelView 800. For data-intensive applications, the integrated microSD card slot accommodates up to 32GB of external memory, facilitating comprehensive data logging and recipe management.

Key Technical Characteristics

• Embedded Communication Suite: Includes Ethernet/IP for high-speed networking and a dual-purpose serial port for legacy device integration.
• Modular Expansion: Features two plug-in slots that allow users to add specialized I/O or communication modules without increasing the controller’s footprint.
• High-Capacity Memory: Supports a 10K-step user program and 20KB of data memory, providing ample space for complex logic.
• Integrated Analog I/O: Provides 4 shared 0-10V analog inputs and 1 non-isolated 0-10V analog output for temperature or pressure regulation.
• Onboard Real-Time Clock: Enables precise time-stamped events and scheduling without requiring a constant battery backup.
• PWM Output Support: Includes 5 kHz pulse-width modulation capabilities for controlling solenoid valves and basic actuators.

Product Specifications

Industrial Applications

The 2080-LC20-20QWB excels in decentralized control scenarios. Typical deployments include:

• Building Automation: Managing lighting, HVAC, and security systems via Modbus TCP.
• Material Handling: Controlling small conveyors and sorting stations in warehouses.
• Remote Monitoring: Serving as a Remote Terminal Unit (RTU) for water treatment or solar array tracking.