Core Upgrade and Advantages
Performance improvement: 68040 processor+40MHz main frequency, control cycle ≤ 8ms, suitable for large-scale I/O and complex algorithms.
Communication Expansion: 7 configurable serial ports, supporting more third-party device access, and adapting to multi protocol docking in smart substations.
Redundancy flexibility: Compatible with multiple CPU redundancy in VME chassis, supporting 1-3 CPU board configurations to meet different reliability level requirements.
Strong compatibility: backward compatible with D20 series modules and chassis, upgrading does not require replacing existing I/O and power supplies, reducing renovation costs.
Diagnostic enhancement: Added NVRAM status monitoring, with more detailed alarm information, making it easier to quickly locate faults.
Typical application scenarios
Intelligent Substation: The main station automation core processes telemetry/remote signaling, controls circuit breakers and transformers, interfaces with protection IEDs, and supports IEC 61850 networking.
Industrial DCS: the control center of petrochemical/metallurgical equipment, executing multi loop PID and logical interlocking, and linking D20A/D20C to achieve analog/digital closed-loop control.
Distributed monitoring: Suitable for small systems without VME chassis, with 7 serial ports to meet centralized management of decentralized devices and support remote SCADA docking.

GE WESDAC D20ME II｜32-bit Main Processor Module｜