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GE IS420UCSBH1A Mark VIe UCSB Controller Module
Product Overview
The GE IS420UCSBH1A is a high-performance UCSB controller module designed for GE’s Mark VIe distributed control system, serving as the core processing unit for real-time automation in mission-critical industrial environments. As part of the Innovation Series, this module executes complex control algorithms, manages I/O communication, and interfaces with operator systems, ensuring precise and reliable operation of gas turbines, steam turbines, and marine propulsion systems.
Powered by an Intel 600 MHz EP80579 processor and equipped with 256 MB DDR2 SDRAM (ECC) and 2 GB NAND flash memory, the IS420UCSBH1A delivers exceptional computational speed, executing up to 100,000 rungs or blocks per second . Its IEEE 1588 protocol-based clock synchronization ensures timing-critical operations, such as turbine start-up/shutdown sequences, are executed with sub-microsecond precision (within 100 µs) across I/O modules and controllers . The module’s fanless and battery-free design enhances reliability by eliminating moving parts and potential failure points, making it suitable for 24/7 operations in harsh environments .
In the Mark VIe ecosystem, the IS420UCSBH1A interfaces with IONet industrial Ethernet switches (e.g., IS420ESWBH1A) and VME bus-compatible I/O modules to form a robust control loop. Its hot-swappable design allows for maintenance without system downtime, a critical feature for power plants and offshore platforms. By combining high-speed processing, rugged reliability, and modular scalability, the IS420UCSBH1A enhances operational efficiency and reduces lifecycle costs in industries where precision and safety are paramount.
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | IS420UCSBH1A |
| Manufacturer | GE |
| Product Type | UCSB Controller Module |
| Series | Mark VIe |
| Processor | Intel 600 MHz EP80579 |
| Memory | 256 MB DDR2 SDRAM (ECC), 2 GB NAND flash |
| Communication Ports | 1x Ethernet (IONet), 1x RS-232C |
| Clock Synchronization | <100 µs via IEEE 1588 protocol |
| Execution Speed | Up to 100,000 rungs/blocks per second |
| Power Requirements | 18–30 V DC, 24–28 V DC nominal (max 1.5 A) |
| Physical Dimensions | 160 mm (H) × 160 mm (W) × 120 mm (D) |
| Weight | 0.8 kg |
| Operating Temperature | -40°C to +70°C |
| Certifications | UL E207685 (Class I, Division 2, Groups A-D), UL DEMKO 12 ATEX 1114875X (Zone 2, IIC) |
| Mounting | 6U VME rack with conformal coating for harsh environments |
Main Features and Advantages
High-Speed Real-Time Processing:
The IS420UCSBH1A’s Intel EP80579 processor and 256 MB ECC memory enable deterministic control, critical for turbine applications where microsecond-level response times are essential. This ensures accurate regulation of fuel injection, speed control, and safety interlocks in gas turbines and marine propulsion systems .
Redundancy and Fault Tolerance:
Designed for high-availability systems, the module supports dual and triple modular redundant (TMR) configurations. In dual systems, it transfers internal state values and synchronization information between primary and secondary controllers via IONet. In TMR setups, it handles voting logic and status synchronization, minimizing downtime during maintenance or component failure .
Rugged Environmental Tolerance:
Compliant with MIL-STD-810G and certified for hazardous locations (ATEX Zone 2, IIC), the IS420UCSBH1A withstands extreme temperatures (-40°C to +70°C), vibration, and humidity. Its conformal-coated circuit board protects against dust and corrosive gases, making it suitable for offshore platforms, desert power plants, and chemical processing facilities .
Seamless Integration with Mark VIe:
Interfaces directly with IONet switches and VME I/O modules via the VME bus, forming a unified control architecture. It also integrates with Cimplicity HMI software for centralized monitoring and diagnostic insights, enabling predictive maintenance and performance optimization.
Advanced Diagnostics:
Built-in self-test (BIST) and front-panel LEDs provide real-time health monitoring, including CPU load, memory usage, and communication status. Faults are logged and transmitted to the Mark VIe controller, reducing mean time to repair (MTTR) and ensuring proactive issue resolution.
Fanless and Battery-Free Design:
Eliminates moving parts and battery dependencies, reducing maintenance requirements and extending operational lifespan. This design is particularly advantageous in remote or hard-to-access locations where regular maintenance is challenging .
Application Areas
The GE IS420UCSBH1A is engineered for industries requiring high-reliability, real-time control:
- Power Generation:
Controls gas and steam turbines in thermal, combined-cycle, and nuclear power plants. Manages critical processes like combustion optimization, grid synchronization, and load sharing, ensuring efficient energy production. - Oil & Gas:
Deployed in offshore platforms and refineries to monitor and control turbine-driven compressors, pumps, and emergency shutdown (ESD) systems. Its redundancy features ensure continuous operation in remote, harsh environments. - Marine Propulsion:
Integrates with marine gas turbines and diesel engines to regulate propulsion systems, shipboard power generation, and auxiliary equipment. The module’s compact design and vibration resistance make it ideal for naval and commercial vessels. - Industrial Manufacturing:
Used in large-scale production lines for process automation, such as steel mills and chemical plants, where precise timing and high-speed data processing are essential for quality control and throughput.
Specific applications include gas turbine speed control, steam turbine governor systems, and marine engine load balancing.
Related Products
- GE IS420UCSBH4A(Mark VIe UCSB Controller Module):
An upgraded variant with a 1066 MHz Intel EP80579 processor, suitable for complex control systems requiring higher computational capacity. - GE IS420ESWBH1A(Mark VIe IONet Industrial Ethernet Switch):
Provides high-speed, redundant communication between the IS420UCSBH1A and other Mark VIe modules, ensuring real-time data exchange . - GE IS215ACLEH1A(Mark VIe Application Control Layer Module):
Complements the IS420UCSBH1A by handling system logic and interface processing, sharing the same VME bus architecture. - GE IS220PSCAH1A 336A4940CSP9(Mark VIe Power Supply Module):
Offers redundant 24 V DC power to the IS420UCSBH1A, ensuring uninterrupted operation in mission-critical systems. - GE IS415UCVHH1A(Mark VIe VME Controller Board):
A complementary controller for less demanding applications, sharing the same VME bus architecture but with lower processing speed. - GE IS210AEPSG1A(Mark VIe Power Supply Backbone):
Provides regulated power for the IS420UCSBH1A and other Mark VIe modules, ensuring stable power delivery in high-EMI environments .
Installation and Maintenance
Pre-installation preparations:
Verify the VME rack is securely grounded and ventilated, with sufficient space for cooling. Install the IS420UCSBH1A in a 6U VME slot, ensuring proper alignment with the backplane. Connect the module to the IONet switch using shielded Ethernet cables and configure communication parameters via GE’s Proficy software. Test power supply compatibility and redundancy settings if applicable.
Maintenance suggestions:
Perform quarterly firmware updates to ensure compatibility with the latest Mark VIe software releases. Clean dust from vents biannually using compressed air, particularly in dusty environments. Monitor CPU load and memory usage via the controller’s diagnostic interface, addressing 异常 spikes promptly. Replace the module every 10 years or as recommended by GE’s lifecycle management guidelines. Store spare IS420UCSBH1A modules in anti-static packaging at 10–30°C with <50% humidity, testing them annually to confirm functionality.
Product Guarantee
Our company offers a one-year quality warranty service for the IS420UCSBH1A, covering hardware malfunctions not caused by human factors. During the warranty period, if the product shows abnormal performance or functional failure, we will provide replacement services. In addition, for discontinued models or urgent demands, relying on our global supply chain network, we can quickly respond to customers’ procurement needs for scarce spare parts, and provide reliable services to support the continuous and stable operation of industrial systems. As a leading import-export trade distribution company established in 2007 with 17 years of experience, we maintain large stocks of industrial control parts, including unpopular and discontinued models like the IS420UCSBH1A, ensuring timely access for our customers.
For inquiries, contact us via WhatsApp at +86 18859254943 or email at sales@ygplc.com.
