SKU: IS420UCSDS1

GE IS420UCSDS1 Mark VIe UCSB Controller Module

The GE IS420UCSDS1 is a 600 MHz UCSB controller module for the Mark VIe system. Designed for high-reliability turbine control, it features an Intel processor, dual/TMR redundancy support, and ATEX Zone 2 certification for demanding industrial environments.

Product Overview

The GE IS420UCSDS1 is a high-performance UCSB controller module serving as the primary computational heart of the Mark VIe Control System. Engineered specifically for turbine management and large-scale industrial automation, this module executes complex control logic independently of the I/O hardware. Unlike traditional programmable logic controllers, the UCSB architecture treats application I/O as distributed network resources, which enhances system flexibility and removes the constraints of local backplane hosting.

Equipped with an Intel 600 MHz EP80579 microprocessor, the IS420UCSDS1 provides the processing power necessary for real-time control in Mark VIe, LS2100e, and EX2100e systems. Its rugged design and specialized PCB coating ensure durability in harsh industrial settings, while its “standalone computer” configuration allows for seamless maintenance without compromising the integrity of the broader control loop.

Technical Specifications

Manufacturer: General Electric (GE)
Product Line: Mark VIe Control System
Model Number: IS420UCSDS1
Module Type: UCSB Controller Module (UCSD Functional Assembly)
Processor: 600 MHz Intel EP80579 Microprocessor
Input Voltage: 18V to 30V DC (Nominal 24V/28V DC)
Current Consumption: 1.5A Maximum draw
Communication Ports: 5 Total (including RS-232C and Ethernet)
Redundancy Support: Compatible with Simplex, Dual, and TMR (Triple Modular Redundant) setups
Hazardous Area Ratings: ATEX Zone 2, Group IIC; Class I, Division 2
Operating Dimensions: 5.5 cm x 12.3 cm x 20.3 cm
Weight: 1.52 kg

Key Features and Strategic Advantages

The IS420UCSDS1 module optimizes turbine control through several advanced architectural features:

Distributed I/O Network Architecture: By decoupling the controller from the physical I/O boards, the system eliminates single points of failure. Consequently, the controller can access data from any point on the network, facilitating easier system expansions and upgrades.
Comprehensive Redundancy Support: The module excels in Triple Modular Redundant (TMR) applications. In this mode, three controllers operate in parallel with a voting mechanism, ensuring that a single module failure never triggers an unscheduled system trip.
High-Speed Connectivity: With five dedicated communication ports, including multiple Ethernet interfaces, the module supports high-bandwidth data exchange between controllers and HMI stations. This ensures low-latency response times for critical safety functions.
Environmental Resilience: The controller carries UL and ATEX certifications for Zone 2 and Class I, Div 2 environments. Furthermore, its specialized protective coating prevents corrosion and electrical leakage caused by industrial contaminants.
Independent Logic Execution: Because it operates as a standalone computing node, the IS420UCSDS1 can be powered down or replaced while redundant partner controllers continue to manage the process, significantly improving plant availability.