1. Basic Information

• Model: IS215UCVEH2AF (GE Mark VI Part Number); VMIVME-7614-133 (VMIC Single Board Computer); 350-017614-133 E (Material Code)

• Brand: General Electric (GE) / GE Fanuc VMIC

• Series: Mark VI Speedtronic Turbine Control System, VMIVME VMEbus Industrial SBC Series (UCVE Controller)

• Core Purpose: Single-slot 6U VMEbus main controller / single-board computer, serving as the core control unit of the GE Mark VI system for real-time control computation, data processing and multi-bus communication management, widely used in critical control scenarios of gas turbines, steam turbines and combined-cycle power plants.

2. Key Hardware Specifications

• Processor: Intel Celeron 300 MHz (32-bit industrial-grade), 128 KB L2 Cache

• Memory: 32 MB DRAM; 8 KB battery-backed SRAM (NVRAM for critical parameter retention); supports 16 MB / 128 MB CompactFlash (CF) storage

• Operating System: QNX Real-Time Operating System, compatible with VxWorks, Linux and other RTOS

• Bus Interface: VMEbus (single-slot 6U), mounted in Mark VI VME rack with forced-air cooling

• Communication Interfaces: 1×Ethernet (10/100BaseTX, RJ45, supports TCP/IP, EGD, Modbus); 2×RS-232C serial ports (COM1 for diagnostics, COM2 for serial Modbus); supports ISBUS, Genius Bus and PROFIBUS-DP master communication

• Status Indication: 3 front-panel LEDs (Power, Active, Master/Slave) + reset button for clear status and redundancy indication

• Power Supply: VME backplane power (+5V, +12V, -12V), typical consumption +5V/6A, +12V/200mA

• Environmental: Operating temp -30°C~65°C, storage temp -40°C~85°C, humidity 5%~95% non-condensing, industrial-grade vibration and EMI resistance for harsh industrial environments

• Redundancy: Supports Simplex or Triple Modular Redundancy (TMR) with millisecond bumpless switching to eliminate single points of failure and ensure uninterrupted operation.

3. Core Functions

1. Real-Time Control Execution: Runs Mark VI control logic, PID regulation, closed-loop control for speed, load, temperature and protection, meeting millisecond-level response requirements for turbine control.

2. Data Acquisition & Processing: Collects analog/digital signals from I/O modules, performs filtering, calculation, alarm and trend logging for system diagnostics and historical tracking.

3. Multi-Bus Communication Management: Interfaces with I/O, HMI, DCS and third-party devices via Ethernet, serial, ISBUS and Genius Bus for data exchange, remote monitoring and system integration.

4. Redundancy & Fault Protection: TMR architecture with automatic master/slave switchover; built-in watchdog with auto-reset on anomalies; battery-backed SRAM retains critical configurations through power loss.

5. Diagnostics & Maintenance: LED status, remote diagnostics and event logging for fast fault location; supports hot-swap and firmware upgrade to minimize downtime.

4. Key Advantages

• High-Reliability Industrial Design: Wide temperature range, strong anti-interference and TMR redundancy, suitable for critical continuous-operation scenarios such as power plants, oil & gas and offshore platforms.

• Native Mark VI Compatibility: Plug-and-play, seamless integration with VMIVME VME platform, no extra adaptation required, reducing integration risks.

• Strong Real-Time Performance: QNX RTOS + 300 MHz processor delivers deterministic low latency to meet strict real-time demands of turbine control.

• Flexible Communication & Easy Maintenance: Multi-protocol, multi-interface for third-party compatibility; modular design with visual status indicators for easy maintenance.

5. Typical Applications

• Gas/Steam/Combined-Cycle Power Plants: Main controller for Mark VI systems, providing full control of speed, load, excitation and overspeed protection.

• Petrochemical & Offshore Platforms: Control systems for industrial turbines, compressors and pumps, meeting hazardous area safety requirements.

• Power & Energy Industry: Real-time control, data acquisition, safety protection and remote monitoring for critical rotating machinery.