Allen-Bradley 1756-M13 Memory Expansion Module is a 1.5 MB memory expansion sub-module for ControlLogix Logix5555 processors, designed to increase the controller’s available user memory within 1756 system backplanes. It supports a range of 1756-L55 family controllers, including the L55, L55M12, L55M13, L55M14, L55M16, L55M22, L55M23, and L55M24, integrating as a dedicated memory expansion sub-module in the 1756 backplane. This module enables larger control programs, data tables, and arrays by expanding the controller’s memory capacity, and is part of the 1756 ControlLogix I/O Modules and Accessories lineup.
