What does the term 'None' refer to when discussing event recording?

When discussing event recording, the term 'None' typically refers to a mode in which an event is recorded only when it occurs. This means that the system is set up to capture a record or entry in the historian database solely at the precise moments an event happens. This approach is efficient because it avoids the continuous collection of data, reducing the amount of information stored while still ensuring that critical events are logged.

The primary purpose of this mode is to ensure that important occurrences are tracked without cluttering the data set with unnecessary or irrelevant information. It allows for focused analysis on specific events rather than an overwhelming amount of continuous data that may not provide additional value. In this way, users can maintain a clearer log of significant occurrences essential for monitoring and analysis.