GE VMIVME-7698 VME bus industrial single-board computer

GE VMIVME-7698 VME bus industrial single-board computer

I. Basic Information
Brand: GE VMIC (now Abaco Systems)
Specification: VME64 single-height Eurocard 6U standard plug-in card
Positioning: The core main control CPU board of GE Mark V turbine unit DEH/ETS/TSI control system, the central computing, logical processing and communication hub of the entire VME rack, capable of mounting VMIVME1150, 2170, 5576 and other series VME cards to work collaboratively.
Architecture: Compatible with PC/AT architecture, capable of running real-time operating systems such as Windows NT, VxWorks, QNX, and Linux.

Core Hardware Configuration
1. Processor and Storage
Mainstream configuration: Intel Celeron 366MHz (with MMX), high-end version up to 1.2GHz processor
Memory: Standard 64MB SDRAM, maximum expandable to 2GB
Local storage: 64MB onboard Flash, supports CF card, IDE hard disk, electronic disk for system program, control logic, fault recording data
2. Front Panel Integrated Interfaces
1 10/100M adaptive Ethernet port: upper-level configuration, DCS communication, program download, data upload
2 2 RS232 serial ports: local debugging, console, local HMI communication
VGA video interface + PS/2 keyboard and mouse interface: direct connection to the display for debugging, viewing the industrial control interface
USB interface: export of peripheral data, firmware upgrade
3. Expansion Capability
Equipped with 1 PMC expansion slot: can insert VMIVME5576 optical reflection memory card to achieve high-speed real-time data interaction between multiple cabinets
Supports VME64 bus (A24/A32 addressing, D8/D16/D32/D64 high-speed transmission), dual-port shared memory, no conflict in multi-CPU collaborative computing
Onboard AGP graphics card, supports local visualization debugging in industrial field
4. Electrical Environmental Parameters
Backplane + 5V power supply, passive cooling without fan design, industrial high reliability and long lifespan
Operating temperature: 0℃～+55℃ (industrial cabinet standard), wide temperature version supports – 40℃~+85℃
PCB three-proof coating, resistant to dust, electromagnetic interference, suitable for strong interference industrial conditions such as power plants, metallurgy, and petrochemicals

Core Functions
Unit control logic operation core
Responsible for turbine speed closed-loop, valve regulation, ETS trip protection, SOE event sequence record, vibration interlock and other real-time control algorithm operations, collecting DI card signals, issuing DO protection instructions.
Multi-cabinet real-time data interaction
Through PMC slot to install optical reflection memory card, realize millisecond-level data synchronization between control cabinets, isolation cabinets, and remote I/O cabinets, ensuring zero delay in unit protection actions.
System operation and data storage
Record unit start-stop curves, fault codes, trip events, operation parameters, support local/ethernet export of fault data for accident analysis; support online firmware and control logic upgrades.
Multiple protocols external communication
Connect to the power plant DCS system through network port, realize remote start-stop, load regulation, operation status, alarm information upload.

Typical Application Scenarios
GE Mark V thermal power / gas turbine DEH digital electric adjustment, ETS isolation protection system (the most mainstream application)
Large compressors, metallurgical rolling mills, power generation unit VME architecture real-time measurement and control system
Aerospace, military embedded simulation test platform