Allen-Bradley 1747-M2-A Memory Module for SLC 500 is a 4K User Words EEPROM memory module designed for SLC 500 fixed I/O and modular controllers. This Series A module provides non-volatile storage for the processor’s program and data, retaining contents across power cycles without a battery, and is compatible with SLC 5/01 (processors 1747-L511, 1747-L514) and SLC 5/02 (1747-L524) systems. It plugs into the memory module slot in the SLC backplane and delivers 4K user words of EEPROM storage for ladder logic and user data, supporting backup and program preservation in standard SLC 500 configurations.
