3VVRV567CT008 - Digital I/O Core

SPECIFICATIONS

Part No.: 3VVRV567CT008
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Product Type: Digital I/O Core
Availability: In Stock
Series: Mark V

Functional Description

3VVRV567CT008 is a Digital I/O Core developed by GE. It is a part of the Mark V control system. This module serves as an integral component within the Mark V system, enabling seamless digital communication and control across various input and output devices. It is specifically designed to manage and process digital signals with high accuracy and speed, ensuring efficient control and monitoring of operations.

Features

• High-Speed Processing: Supports rapid communication and processing of digital signals, for real-time control and monitoring.
• Reliability: Engineered for critical operations where downtime or failure can result in significant operational or safety risks.
• Modular Design: Allows for flexible integration within the Mark V control system, making replacing or upgrading components easier without disrupting the entire system.
• Compatibility: Fully compatible with the broader Mark V ecosystem, ensuring interoperability with other GE components and systems.

Software Voting

• At the start of each computing time frame, each controller within the Mark V system independently reads data from its respective sensors. This ensures that the initial data acquisition is unbiased and unaffected by other controllers.
• Once the sensor data is collected, the controllers exchange their readings with the other two controllers in the system. This creates a redundant data pool, allowing the system to cross-check values and identify anomalies or outliers.
• Each controller processes the analog input data and calculates the median value of the inputs received from all three controllers. The median value is used as the control parameter for that controller. This median voting method effectively eliminates the influence of outlier values caused by sensor faults or noise.
• A predefined deadband is set for all analog inputs to each controller. This deadband represents the acceptable range of variance between the readings. The diagnostic algorithm continuously monitors the analog input values. If one of the inputs deviates beyond the predefined deadband, it triggers a diagnostic alarm. This alarm alerts maintenance personnel to investigate and address potential issues with the corresponding sensor or input channel.

The WOC team is always available to help you with your Mark V requirements. For more information, please contact WOC.

Frequently Asked Questions

What is 3VVRV567CT008?
It is a Digital I/O Core developed by GE under the Mark V series.

What is the role of SIFT (Software Implemented Fault Tolerant)?
SIFT enhances the system's reliability by implementing fault-tolerance algorithms in software. It allows the Mark V control system to process sensor data redundantly and accurately identify and mitigate faults, ensuring continuous and safe operations.

How does hardware voting complement SIFT?
Hardware voting works alongside SIFT by ensuring final control actions are based on a majority consensus among the three controllers. This redundancy ensures the system remains reliable, even if one controller or data source fails.