Which tag characteristic does not impact the Historian tag license?

Event tags are designed to log specific occurrences or states at a given point in time rather than continuously collecting data. In the context of a historian server, they do not consume a historian tag license because they are not meant to store streamable data over a duration. This characteristic makes it distinct from other tag types, such as snapshot tags, continuous tags, and dynamic tags, which indeed impact the licensing structure.

Snapshot tags capture the latest value of a data point at a defined interval, while continuous tags log data in a continuous stream, both consuming historian tag licenses. Dynamic tags, associated with changing data, also require a license as they usually fall under the continuous data collection. Understanding that event tags are primarily for specific one-time occurrences, rather than ongoing data, helps clarify their exemption from licensing requirements.