GE IS420UCSBH1A | UCSB Universal Control Subsystem Board for Mark VIe Control Systems
Standalone Controller Module with IONet Connectivity, IEEE 1588 Sync & Fanless Design for Turbine & Industrial Power Control
1. Product Overview
The GE IS420UCSBH1A is a UCSB (Universal Control Subsystem Board) controller module, a core component of GE Speedtronic Mark VIe, EX2100e, and LS2100e control systems, designed as a standalone compact controller for executing application-specific control logic in gas/steam turbine, generator, and industrial power systems. Unlike traditional backplane-hosted I/O controllers, it has no on-board application I/O; instead, it accesses all input data via dedicated IONet (R/S/T) field networks, enabling distributed I/O architecture with redundant network connections. Powered by an Intel EP80579 600 MHz processor and QNX Neutrino RTOS, it features 256 MB ECC DDR2 SDRAM, 2 GB NAND Flash memory, and supports IEEE 1588 precision time protocol for clock synchronization (within 100 μs) across controllers and I/O packs. The module has a fanless natural convection cooling design, no on-board battery, built-in 18-36 VDC power (max 1.5 A), and offers dual redundant IONet (10 Mbps) and 10/100 Mbps Ethernet ports (for configuration/monitoring), with an operating temperature range of -40°C to +85°C, 4000 V ESD protection, and reverse polarity protection, ensuring reliable operation in harsh industrial environments.
Key Specifications
• Model: IS420UCSBH1A | GE UCSB Universal Control Subsystem Board (Mark VIe/EX2100e/LS2100e)
• Compatibility: GE Mark VIe, EX2100e, LS2100e control systems; turbine/generator control; industrial automation platforms
• Processor: Intel EP80579, 600 MHz; OS: QNX Neutrino RTOS (real-time deterministic response)
• Memory: 256 MB DDR2 SDRAM (ECC protected); 2 GB NAND Flash (firmware + application storage)
• Communication: 3×IONet (R/S/T) ports (10 Mbps, fiber/electrical, redundant); 1×10/100 Mbps Ethernet (configuration); IEEE 1588 PTP (100 μs sync)
• Power Supply: 18–36 V DC (max 1.5 A); built-in power module; reverse polarity protection
• Environmental: Operating: -40°C to +85°C; Storage: -40°C to +85°C; Humidity: 5–95% (non-condensing)
• Mechanical: Panel-mount (150 mm × 100 mm × 50 mm); fanless natural convection cooling; weight: ~1.1 lbs (500 g)
• Certifications: IEC 61010-1 safety; EMC (EN 55022/EN 55024); IEEE 1588 PTP compliance
2. Core Features
• Standalone Control Logic Execution: Runs application-specific ladder/block logic without on-board I/O; accesses data via IONet for distributed architecture
• IEEE 1588 Precision Time Sync: Synchronizes controller and I/O pack clocks within 100 μs for high-precision control loop coordination
• Redundant IONet Connectivity: 3 IONet ports support ring/dual-network topologies, ensuring fault-tolerant field communication without single-point failure
• Maintenance-Free Design: Fanless cooling, no on-board battery, built-in power, and flash-based storage for easy firmware updates
• Real-Time Deterministic Performance: QNX RTOS and 600 MHz processor deliver sub-millisecond response for turbine speed regulation and safety loops
• ECC Memory Protection: 256 MB ECC DDR2 SDRAM prevents data corruption, critical for continuous control system operation
• Zero I/O Loss Architecture: Hardware/software design ensures no single point of input data loss during controller power-off/maintenance
• Wide Voltage Input: 18–36 V DC power range supports industrial power fluctuations with reverse polarity protection
YMGK Purchase Information
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3. Typical Applications
• Power Generation: Gas/steam turbine control (Mark VIe); generator load management; combined cycle plant coordination
• Oil & Gas: Pipeline compressor turbine control; LNG plant gas turbine monitoring; offshore platform power generation
• Petrochemical: Refinery cogeneration turbine control; chemical plant steam turbine speed regulation; fertilizer plant power integration
• Industrial Power: Waste-to-energy plant turbine control; distributed power generation; marine propulsion turbine management
• Industrial Automation: EX2100e/LS2100e platform control; process skid automation; critical infrastructure monitoring systems
4. Installation & Maintenance
Installation: Panel-mount (150×100×50 mm); wire 18–36 V DC power; connect 3 IONet ports to R/S/T IONet rings; link Ethernet to configuration PC; set IP via front-panel DIP switches; power on and verify IONet sync (IEEE 1588) and controller status.
Maintenance: Weekly: Check status LEDs (Power, IONet 1-3, Ethernet, Fault); Monthly: Verify IONet data transfer and IEEE 1588 sync accuracy; Annual: Update firmware via Flash; inspect power/reverse protection; clean module vents (fanless design).
Safety Notes: Power off before wiring/connection; use shielded cables for IONet/Ethernet; ensure proper grounding for EMC compliance; avoid electrostatic discharge (4000 V ESD rated).
Technical Document | GE IS420UCSBH1A | UCSB Universal Control Subsystem Board for Mark VIe Turbine Control Systems
