Description

The Allen-Bradley 1756-L55M24 is a ControlLogix Logix5555 processor module designed for high-performance industrial automation applications. This unit integrates a 1756-L55 base processor with a 1756-M24 memory board, providing 3.5 MB of non-volatile memory for robust program and data storage. As a component of the ControlLogix platform, it supports complex control tasks and high-speed communication within the chassis-based architecture.

Features

• ControlLogix 5555 series architecture for scalable control solutions.
• Integrated 3.5 MB non-volatile memory for reliable data retention.
• Designed for seamless integration into 1756 ControlLogix chassis.
• Supports multi-tasking and high-speed processing for demanding industrial environments.

Technical Specifications

Installation Guidelines

• Ensure the ControlLogix chassis is powered down before inserting or removing the processor module.
• Handle the module by the edges to avoid electrostatic discharge (ESD) damage to sensitive internal components.
• Align the module carefully with the chassis slot guides and seat it firmly to ensure proper backplane connection.
• Tighten the module retaining screws to secure the unit within the chassis and ensure proper grounding.
• Verify that the module is compatible with the existing firmware and chassis power supply capacity before commissioning.

FAQ

Is the 1756-L55M24 still in production?

No, this module was officially discontinued by the manufacturer on March 30, 2011. It is primarily available through secondary market channels for maintenance and legacy system support.

What does the 1756-M24 designation indicate?

The 1756-M24 refers to the specific memory board installed on the 1756-L55 processor base, which provides the 3.5 MB of non-volatile memory capacity.