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The IS420UCSBH3A is an embedded controller module operating as a standalone computer to execute control system logic for industrial turbine applications. This hardware component belongs to the General Electric Mark VIe product series and is also referenced within the MarkStat control platforms. It runs the QNX Neutrino real-time multitasking operating system to process application-specific parameters without hosting onboard application input and output hardware channels.
Network-Based I/O Interface – Integrates three 10/100 Ethernet ports to transfer sensor and actuator data with distributed I/O over IONet
Fault-Tolerant TMR Architecture – Supports single, dual, and Triple Modular Redundant configurations with 2-out-of-3 voting for continuous process uptime
Dual-Redundant Cooling Fans – Incorporates active internal cooling with redundant fans to eliminate single points of failure during operation
The module contains a 1200 MHz processor, SDRAM, flash memory, an internal power supply, and cooling fans. Connection and monitoring elements include three 10/100 Ethernet ports for network interface, one USB port, one RS-232 serial interface, and front-panel status LED indicators. The module mounts to a base plate and communicates digitally via the network ports to exchange sensor and actuator data with field-located termination blocks. It operates on an input voltage range of 18 to 30 Vdc and supports configuration in single, dual, or triple modular redundant arrangements for continuous process uptime.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
General Electric IS420UCSBH3A UCSB Controller Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Heavy-Duty Gas Turbine Power Generation
Controls fuel control valves, high-pressure compressor guide vane positions, and exhaust temperature monitoring for large industrial gas turbines.
Thermal Power Plant Steam Turbine Control
Operates electro-hydraulic control (DEH) systems for high-pressure control valves and main stop valves, executing emergency trip systems (ETS) and speed protection.
Offshore Oil & Gas Platforms
Provides continuous process control for turbine units driving main power grids and core water-injection compressors on offshore platforms.
Utility-Scale Wind Turbine Control
Serves as the main controller for large-scale wind turbines (MarkStat platform), executing blade pitch control, nacelle yaw control, and converter interface communication.
Combined Cycle Power Plants
Coordinates plant-wide thermal balance control and load dispatching among gas turbines, heat recovery steam generators (HRSG), and steam turbines.
Large-Scale Cogeneration
Regulates the dynamic balance between extraction steam pressure for industrial heating and generator output power in extraction steam turbines.
When operating the IS420UCSBH3A module, the 24 Vdc input power must be turned off before installation or removal to prevent hardware damage, and the Ethernet interfaces must remain disconnected from external networks to ensure real-time control integrity.
The controller requires vertical mounting to maintain clearance for fanless natural convection cooling, and all modules within redundant or Triple Modular Redundant setups must run identical firmware versions and software configurations to ensure accurate voting.
Technical notes
Technical notes
The IS420UCSBH3A supports single, dual, and Triple Modular Redundant (TMR) control configurations. In TMR setups, three identical UCSB controllers independently run identical control logic and perform 2-out-of-3 voting and synchronization via dedicated networks, enabling online switching without process interruption in the event of a single controller failure.
IS420UCSBH3A is a UCSB Controller Module developed by GE under the Mark Vle series.
What are the features of the IS420UcsBH3A processor?
It is powered by a quad-core CPU with pre-installed application software. The processor, which runs on the QNx Neutrino operating system, is built to provide real-time, high-speed, and dependable operations.
How can you identify whether the IS420UcsBH3A has a proper Ethernet connection?
For diagnostic purposes, It has numerous LEDs on its front panel and Act LEDs for ports that indicate a working Ethernet connection.
Do you offer global delivery services?
Yes. We ship globally, and we are able to quickly deliver parts globally to any corner of the world. Unless otherwise specified, we will ship your order via (DHL). We can also ship through FedEx, UPS, and TNT. We can also use your account.
How many parts do you have in stock?
We have an extensive stock base consisting of ten thousands of new and discontinued automation parts including those from leading manufacturers such as: Control Systems(DCS ,PLC ,CNC),Panel Controllers, HMI and Display Panels, Drives, Encoders and Resolvers, Power Supplies.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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