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1756-L55M22 Allen-Bradley
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The 1756-L55M22 is a single-slot ControlLogix® processor module from Allen-Bradley's Logix5555 series. It integrates 750 KB of user memory for program and data plus 208 KB of I/O memory, and includes non-volatile memory. Installed in a ControlLogix chassis backplane, it functions as the logic engine in industrial control systems, handling program execution, I/O scanning, and system communication. Typical applications include discrete and process control, high-speed machine automation, and integration into distributed ControlLogix architectures.
Best Suited For
- ControlLogix systems requiring non-volatile memory retention
- Discretely automated machine control requiring 208 KB I/O buffer
- Environments needing 750 KB program/data storage
- Upgrading existing Logix5555 series controllers