The Terasaki EMW-1101A is the central processing and memory module for marine power automation and industrial control systems. It integrates a CPU, volatile RAM for temporary data storage, and non-volatile ROM chips to store system firmware, control logic, and configuration parameters. This module executes real-time control algorithms, processes data from I/O modules, and manages communication with other system components via its dual edge connectors. Built with industrial-grade components and EMC protection circuits, it ensures reliable operation in harsh maritime environments (vibration, salt spray, electromagnetic interference), serving as the "brain" of the entire EMW-series control system.