Allen-Bradley 1764-MM2 MicroLogix 1500 Memory Module

Allen-Bradley 1764-MM2 MicroLogix 1500 Memory Module is an optional expansion card for the MicroLogix 1500 PLC family that adds 16 KB of memory to the controller, increasing available data storage for tags, data logs, and user data without altering the base program memory. Catalog number 1764-MM2, this module is described in Rockwell Automation literature as a 16K memory module for MicroLogix 1500 systems, with a companion variant that adds a Real-Time Clock (1764-MM2RTC) offering the same memory capacity plus RTC functionality. The MM2 memory module is designed to reside in the MicroLogix 1500 memory architecture to provide additional storage for configuration and runtime data, supporting applications that require larger data tables, longer data logs, or more extensive data capture between cycles. It represents a standard option within Allen-Bradley’s MicroLogix 1500 memory-extension lineup, compatible with the MicroLogix 1500 base controllers and their software environment.