What does the delta retrieval feature do in AVEVA Historian?

What does the delta retrieval feature do in AVEVA Historian?

• A. Retrieves all data at regular intervals.
• B. Records changes in hardware settings.
• C. Retrieves data only when there is a change in value or data quality.
• D. Executes commands for data export.

Answer: (C)

The delta retrieval feature in AVEVA Historian is designed to optimize data access by only retrieving data when there is a change in value or data quality. This enhances efficiency by minimizing the amount of data transferred, which can be particularly useful in scenarios where large data volumes are involved. Instead of pulling all data at regular intervals, the delta retrieval mechanism focuses on capturing only the relevant updates, making it a smart choice for real-time monitoring and analysis. This leads to faster performance and reduced load on network resources, ensuring that only the most pertinent information is processed and analyzed. This is especially vital in industrial applications, where timely and accurate data is critical for decision-making processes.

The delta retrieval feature in AVEVA Historian is designed to optimize data access by only retrieving data when there is a change in value or data quality. This enhances efficiency by minimizing the amount of data transferred, which can be particularly useful in scenarios where large data volumes are involved. Instead of pulling all data at regular intervals, the delta retrieval mechanism focuses on capturing only the relevant updates, making it a smart choice for real-time monitoring and analysis. This leads to faster performance and reduced load on network resources, ensuring that only the most pertinent information is processed and analyzed. This is especially vital in industrial applications, where timely and accurate data is critical for decision-making processes.