ABB Group 175Z7801 Printed Circuit Board Assembly

ABB Group 175Z7801 Printed Circuit Board Assembly is a memory-extension/communication card designed to plug into ABB control equipment, pairing with the 175Z1147 Communication Memory Card variant to provide removable storage and on-board memory for firmware and application data. The PCB includes a secure digital (SD) card socket supporting removable storage up to 4 GB and contains 32 MB of NAND flash memory for boot, application data, and storage of controller objects. Used in industrial automation applications, these memory cards store firmware, configuration, and program data for ABB drive and PLC modules, enabling memory expansion without altering the main controller's memory map.