Patent ID: 7953503
Filing Date: 2011-05-31
Classification: G05B

Abstract:
1. A method for operating a process plant, comprising: defining a plurality of process states of the process plant; defining alarm notifications generated during an operation of the process plant, wherein a plurality of alarm notifications for indicating non-compliant operating events of the process plant are generated at a process level; assigning a first value or a second value to a plurality of the generated alarm notifications in each case as a dependency value; correlating each process state with a totality of the generated alarm notifications to receive a plurality of pairs, each pair including a process state and an alarm notification; assigning each pair of a process state and an alarm notification a first value or a second value as a correlation value; and determining a current process state of the process plant, wherein depending on a determined process state, those alarm notifications to which the first value is assigned as a dependency value or to which the first value is assigned as a correlation value, are not indicated.