Which method allows for the real-time tracking of data changes in AVEVA Historian?

The method that allows for real-time tracking of data changes in AVEVA Historian is cyclic storage. In this storage approach, data is continuously written to the database as it becomes available, which enables the historian to record changes in real-time. This means that any updates or modifications to the data are captured instantly, providing a dynamic view of the data as it changes.

Cyclic storage efficiently manages data storage by overwriting older data when the storage limit is reached, ensuring that the most recent data is always retained while maintaining system performance. This is crucial for applications where real-time monitoring and immediate access to fresh data insights are essential.

In contrast, linear storage captures data in a sequential method without immediate overwriting, which may not be as efficient for real-time tracking. Batch reporting refers to periods where data is collected and processed in bulk rather than using continuous updates, and static storage implies that data does not change over time and is not suitable for real-time scenarios. Thus, cyclic storage is the preferred method for enabling real-time data tracking in AVEVA Historian.