Archive Compression Exampmle: Archive Compression of a Drifting Tag

A drifting tag is one that ramps up, but for which the value barely falls within the deadband each time. Even though a new held sample is created and the current one discarded, the slope is not updated unless the current slope exceeded. With a properly chosen deadband value, this is irrelevant: by specifying a certain deadband, the user is saying that the process is tolerant of changes within that deadband value and that they do not need to be logged.