Description

The Allen-Bradley 1756-L55M16 is a ControlLogix Logix5555 controller module designed for high-performance industrial automation applications. This processor module features 7.5 MB of integrated memory, providing robust processing capabilities for complex control tasks. The 1756-L55M16 consists of a 1756-L55 base processor unit paired with a 1756-M16 memory board. As part of the ControlLogix platform, it supports a wide range of I/O configurations and high-speed processing, making it suitable for demanding manufacturing and process control environments.

Features

• Logix5555 processor architecture for reliable execution of control logic.
• Integrated 7.5 MB memory capacity for program storage and data handling.
• High-density I/O support, capable of managing up to 128,000 I/O points.
• Optimized for fast program scan times of 0.08 milliseconds.
• Designed for seamless integration into the ControlLogix backplane.

Technical Specifications

Installation Guidelines

• Ensure the ControlLogix chassis is powered down before inserting or removing the 1756-L55M16 module to prevent electrical damage.
• The module should be seated firmly into the chassis slot and secured using the top and bottom retaining clips.
• Maintain proper ventilation in the control cabinet to ensure the module operates within recommended temperature ranges.
• Observe standard ESD (Electrostatic Discharge) precautions when handling the module to protect sensitive internal components.
• Ensure the backplane power supply is sized correctly to handle the 1.23 A current draw of this processor.

FAQ

Is the 1756-L55M16 still in production?

No, the 1756-L55M16 was officially discontinued by the manufacturer in March 2011. It is typically available through surplus or refurbished channels for maintenance of legacy systems.

What does the 1756-L55M16 consist of?

This unit is a combination of the 1756-L55 base processor module and the 1756-M16 memory expansion board.