ABB 086318-002 PWA Memory Daughter Board for 500 Series Controller PlatformsDescription The ABB 086318 002 is a PWA Memory Daughter Board designed for ABB 500 Series controller platforms requiring memory expansion and data storage support. This PCA module provides additional memory functionality for controller operations, program retention, and system processing tasks within industrial automation environments. Its compact board design allows integration into compatible ABB control systems requiring dependable memory