Which of the following is not a wwFilter option?

The correct choice highlights that "Tolerance(3, 16, 25)" is not a valid wwFilter option. In the context of the AVEVA Historian Server, wwFilter is used to set conditions for retrieving data from the database based on specified criteria. Typical filters involve checking conditions like whether a value is greater than or less than a certain threshold, falls between two limits, or matches a specific value.

The other options represent valid filtering methods. "ToBoolean(>, 75)" checks if a value exceeds 75 and returns a Boolean value based on that condition. "Between(10, 50)" effectively filters data to only include values within the range of 10 to 50, and "Equals('Completed')" retrieves records that match the specified string exactly.

Since "Tolerance" is not a recognized function or method within the context of the wwFilter parameters, it stands out as the only option that does not fit the standard filtering functions utilized for managing and retrieving data in the AVEVA Historian system. This understanding is key for effectively utilizing the historian's querying capabilities.