Allen-Bradley 8000-MBC2Z Memory Cartridge Module is a bubble memory cartridge designed for use with the Allen-Bradley 8000-series PLCs. It functions as a plug-in memory module that stores nonvolatile controller data, enabling retention of configuration and control parameters across power cycles. Identified by the 8000-MBC2Z designation, this memory cartridge variant is used as a replacement or spare part within legacy AB systems that rely on bubble-memory storage to preserve critical control data without continuous power.
