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The IS420UCSBH1A UCSB Controller Module, developed by General Electric (GE), serves as a critical component in the Mark VIe Control Safety System Series. This advanced controller is specifically engineered to execute application-specific control system logic with efficiency. Unlike traditional controllers, it does not host application I/O directly. Instead, it utilizes I/O networks to access all input data. Consequently, this design ensures uninterrupted data availability even when maintenance or repairs necessitate powering down a controller.
Key Features and Advantages
Features
The IS420UCSBH1A controller incorporates several advanced features that enhance both its performance and reliability:
- Processor: Powered by a 600 MHz Intel EP80579, the controller handles complex tasks seamlessly.
- Memory:
- Includes 256 MB DDR2 SDRAM with error-correcting code (ECC), ensuring data integrity.
- Features flash-backed SRAM to retain data during power interruptions.
- Provides 2 GB NAND flash for sufficient software and configuration storage.
- Operating System: Runs on QNX Neutrino, which is known for its stability and robust performance.
- Weight: Lightweight at just 2.4 lbs, simplifying installation.
- Ambient Temperature Range: Operates reliably between -22°F and 149°F (-30°C to 65°C), making it suitable for a variety of environments.
Advantages
The UCSB controller offers multiple benefits that enhance its operational efficiency:
- Compact Design: Its single-module structure reduces the required panel footprint.
- Integrated Power Supply: Simplifies the setup process by eliminating the need for external power components.
- No Fan or Battery: Reduces maintenance requirements and potential points of failure.
- Easy Updates: Flash memory allows system updates with minimal downtime.
- Streamlined Configuration: Does not require jumper settings, making setup faster and more straightforward.
- Enhanced Reliability: Its architecture prevents the loss of input data, ensuring consistent performance.
Operation and Architecture
The IS420UCSBH1A controller comes pre-loaded with application-specific software, allowing it to execute control rungs or blocks effectively. Furthermore, it supports online software modifications without requiring a system restart, which significantly reduces downtime.
To ensure precision, the controller synchronizes clocks across I/O packs and controllers to within 100 microseconds. This is achieved using the IEEE 1588 protocol over R, S, and T IONets. Additionally, these IONets manage data transfers to and from the control system database, ensuring smooth and reliable communication.
Redundancy Options
For applications requiring high reliability, the IS420UCSBH1A supports both dual and triple modular redundant (TMR) systems:
- Dual System:
- Shares synchronization and status data between both controllers.
- Retains initialization and internal state values in the designated controller.
- TMR System:
- Facilitates voting and synchronization among all three controllers.
- Provides initialization data through the designated controller to maintain seamless operation.
These redundancy options ensure uninterrupted system performance, even during component failures.
Mounting and Installation
The IS420UCSBH1A controller is designed for direct attachment to panel sheet metal, making installation straightforward. To maintain optimal cooling, it is essential to mount the controller in a location that allows unobstructed vertical airflow through its fins. This ensures reliable operation and prevents overheating, even in demanding environments.
Specifications
| Specification | Details |
|---|---|
| Part Number | IS420UCSBH1A |
| Manufacturer | General Electric |
| Country of Manufacture | United States (USA) |
| Product Type | UCSB Controller Module |
| Series | Mark VIe |
| Certifications | UL E207685, ATEX Zone 2, Group IIC |
IONet Communication
The IS420UCSBH1A controller communicates with I/O packs using IONet, a private Ethernet network designed exclusively for Mark VIe systems. This specialized network ensures secure and efficient data exchange between controllers and I/O modules. Moreover, it supports high-speed communication, enabling real-time control in critical industrial applications.
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