



The GE IS200VCMIH2BEE is a Master Communication Controller Board used in GE Mark VI Speedtronic turbine control systems. It acts as the central communication hub of the Unit Data Highway (UDH), coordinating high-speed data exchange between the main controller, I/O racks, and remote turbine subsystems.
This module is engineered for mission-critical power generation environments such as gas turbines, steam turbines, and combined-cycle plants. It ensures deterministic, fault-tolerant communication using fiber-optic Ethernet (IONet) and supports triple modular redundancy (TMR) architectures for maximum system availability and safety.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | General Electric (GE) |
| Model Number | IS200VCMIH2BEE |
| System Series | Mark VI Speedtronic |
| Module Type | Master Communication Controller Board (VCMI) |
| Function | Central system communication & data routing |
| Network | Unit Data Highway (UDH) + IONet fiber Ethernet |
| Redundancy | Supports Simplex & TMR (3-channel IONet) |
| Fault Tolerance | SIFT voting (software-implemented fault tolerance) |
| Processor | Industrial-grade embedded controller (TMS320-class architecture in legacy versions) |
| Communication Ports | Multiple IONet fiber ports + serial interface |
| System Role | Data broadcast, synchronization, turbine coordination |
| Diagnostics | Multi-LED status indication + reset function |
| Operating Environment | Industrial turbine control cabinet |