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GE IS420UCSBH1A｜UCSB Controller Module｜
UCSB Compact Independent Controller Module
GE Mark VIe Control System
1. General Description
The UCSB Compact Independent Controller Module is a space-efficient, high-performance controller designed for GE Mark VIe control systems.
It independently executes control logic and communicates with distributed I/O modules via the IONet industrial Ethernet network, ensuring reliable real-time control without reliance on onboard application I/O.
2. Processor and Operating System
Processor: 600 MHz Intel® EP80579
Operating system: QNX® Neutrino real-time operating system
Deterministic real-time execution for critical industrial control applications
3. Memory Configuration
System memory: 256 MB DDR2 ECC SDRAM
Non-volatile storage: 2 GB NAND Flash
ECC memory enhances data integrity and system reliability
4. Communication Interfaces
Integrated IONet industrial Ethernet interface
Supports industrial communication protocols including:
Modbus TCP/IP
Other Mark VIe-compatible Ethernet protocols
Enables high-speed, fault-tolerant data exchange with I/O modules and higher-level systems
5. Power and Electrical Specifications
Supply voltage: 18–30 VDC (nominal 24 / 28 VDC)
Maximum input current: 1.5 A DC
Power consumption:
Rated: 15.6 W
Peak: 26.7 W
6. Environmental Specifications
Operating temperature: −40 ℃ to +70 ℃
Storage temperature: −40 ℃ to +85 ℃
Designed for harsh industrial environments
7. Mechanical Specifications
Dimensions: approx. 120 mm × 60 mm × 40 mm
Weight: approx. 0.6 kg
Protection class: IP20 (control cabinet installation)
Cooling method: Fanless natural convection cooling
8. Redundancy and Reliability
Supports:
Simplex
Dual
TMR (Triple Modular Redundancy) architectures
Ensures no application input data loss during single-controller power-off maintenance
Supports hot plugging and online firmware updates, minimizing system downtime
9. System Integration
Communicates with I/O modules such as:
PUAA
UCVH
Other Mark VIe I/O modules
All application I/O data is acquired via IONet, maintaining data continuity and redundancy
10. Certifications and Standards
Complies with industrial standards including:
CE
UL
IEC 61131
Other applicable industrial certifications
11. Core Functions
Independent execution of control logic
Distributed I/O acquisition through IONet
Reliable real-time data interaction without onboard application I/O
Support for redundant system architectures and online maintenance
12. Typical Applications
GE Mark VIe control systems for:
Gas turbines
Steam turbines
Compressors
Generators
Main control and auxiliary control applications
Distributed control station construction for small and medium-sized units
Installations with:
Limited cabinet space
Fanless and low-maintenance requirements
GE IS420UCSBH1A｜UCSB Controller Module｜
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By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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