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GE IS420UCSCH2A｜Dual Core Mark VIe Controller｜
Core Configuration
Processor architecture: Dual-core processor
Operating system: QNX real-time operating system
Integrated communications: IONet and Ethernet
Communication Interfaces
Ports: 7 × RJ45 (including dedicated IONet and Ethernet ports)
Supported protocols: Modbus, PROFINET, and other industrial Ethernet protocols
Memory and Storage
Memory / storage: 4 GB onboard
Non-volatile storage: Onboard flash memory
Expansion: USB storage support
Power Supply
Input voltage: 24 V DCGE WESDAC D20 PS｜Power Supply Module｜
Redundancy: Supports redundant power supply inputs
Protection: Reverse polarity and surge protection
Environmental Specifications
Operating temperature: –40 ℃ to +60 ℃
Storage temperature: –40 ℃ to +85 ℃
Redundancy and Availability
Supported configurations:
SimplexGE VMIVME-7750 VMIVME-7750-834 350-027750-834 D｜ VME Bus Single Board Computer｜
Dual redundancy
Triple redundancy
Core Positioning and Application Scenarios
Power Generation Control Core
The controller serves as the central control core for power generation systems, responsible for critical functions such as:
Speed and load control
Generator synchronization
Load sharing and dispatch coordination
It supports gas turbines, steam turbines, hydro generators, and combined-cycle power plants. Real-time interaction with distributed I/O is achieved via the high-speed IONet bus, ensuring fast unit response and high control accuracy.
Redundancy and High Availability
In redundant configurations, the system supports bumpless primary/backup switchover. When combined with IS200-series I/O modules and IS420UCSS safety controllers, it meets the high reliability and availability requirements of demanding applications such as nuclear power and large-scale thermal power plants.
The architecture complies with international standards including NFPA 85 and IEC 61508.
Multi-System Coordination
The controller seamlessly integrates with:
EX2100 excitation control systems
Bently Nevada vibration monitoring systems
Burner Management Systems (BMS)
This coordinated control approach unifies excitation, combustion, speed regulation, and protection functions, significantly enhancing overall power plant stability and operational efficiency.
GE IS420UCSCH2A｜Dual Core Mark VIe Controller｜
By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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