The Allen-Bradley 1764-MM2RTC is a MicroLogix 1500 memory expansion module that provides 16K of memory alongside a built-in Real-Time Clock (RTC). It is designed to be used with MicroLogix 1500 controllers to extend data storage for logs, recipes, and process variables while offering time stamping and scheduling through the RTC. Together, the 16K memory and RTC enable time‑stamped data logging and events without relying solely on the processor’s internal memory, making it a targeted choice when both expanded storage and accurate timing are required in MicroLogix 1500 applications.
