ging setting.-->
<!--The point value and its time of occurrence is written to the database-->
<!--only if the value of the point actually changes. This setting provides-->
<!--the best compromise of quality of historical information vs storage-->
<!--space efficiency. For Numeric points, a <b>Tolerance</b>, or "deadband",-->
<!--can also be provided; the value will be logged if the absolute value of-->
<!--the difference between the present value and the previous value equals-->
<!--or exceeds the given tol