US Patent 9207970 Computerized method of identifying process data exceptions

A method for identifying data exceptions in a process includes: receiving an array of data from a data historian comprising filtered data from the process including one or more dependent variables and one or more independent variables; defining, by a microprocessor, a plurality of time slices or bins within the array of filtered data with a predetermined time period; identifying, by a microprocessor, all variables outside of limits that are continuously updated, based only on data when the process is running; and identifying, by a microprocessor, a date of an exception.