Quick Sizing & Sourcing Snapshot
- Manufacturer: GE (General Electric)
- Part Number: IS200ICBDH1ABB (Base: IS200ICBDH1A)
- System Platform: Mark VI / Mark VIe (Innovation Series)
- Hardware Type: Innovation Control Board (ICBD – Main Processor)
- Architectural Role: Acts as the primary processing engine in Mark VI Innovation cores, executing turbine control logic (Speedtronic), PID loops, and managing I/O communication via the VME backplane.
- Key Specifications: 32-bit RISC CPU (200MHz), 8MB Flash (vs 4MB on H1A), 2MB FRAM, Dual Ethernet Front Panel.
System Architecture & Operational Principle
The is the “Brain” of the Mark VI Innovation Series control core, sitting at Purdue Level 2 (Control). Physically, it occupies a dedicated slot (usually Slot 1 or 2) in a VME-based control rack (I/O Core or Controller Core), interfacing with the VME P1/P2 Backplane.
Upstream, it talks to the HMI/Network via Dual Front-Panel Ethernet ports (IONet/UDH) and receives commands from the operator or higher-level DCS. Downstream, it communicates with I/O packs (PDIO, TCAT, STTC) and terminal boards (EACF, ECTB) via the VME bus and dedicated ribbon/fiber links.
The “Innovation” aspect is key: unlike the older fixed-function boards (like the UCVE), the ICBD is software-configurable. The onboard FPGA and 32-bit RISC CPU run the Speedtronic algorithms (Fuel Stroke, Acceleration, Temperature Control). It utilizes FRAM (Ferroelectric RAM) to store runtime variables (e.g., integrator states, sequence steps) without needing a battery. The “H1ABB” suffix indicates an extended memory variant (typically 8MB Flash vs the H1A’s 4MB) and component grading for high-reliability turbine applications.
Core Technical Specifications
- Processor: 32-bit RISC @ 200 MHz (Integrated FPU)
- Memory (Volatile): 2 MB SRAM (Runtime/Stack)
- Memory (Non-Volatile): 8 MB Flash (Firmware/Config), 2 MB FRAM (Retentive Variables)
- Backplane I/F: VME 96-pin (P1 Primary, P2 I/O Expansion)
- Front Ports: 2x RJ45 Ethernet (10/100M), 1x USB (Data Export), 1x RS-232 (Service)
- Logic Power: +5V DC (Sourced from Backplane/Power Supply)
- Real-Time Clock: Supercapacitor Backed (7-day hold-up, no battery required)
- Indicators: RUN (Green – Logic Active), FLT (Red – Hardware/Self-Test), ACT (Comms)
- Form Factor: 6U VME (Double-Height, Single-Slot)
- Environmental: -30°C to +65°C (Operational), Conformal Coated
