Westinghouse Process Control, Inc.

Richard W Kephart, Jr

Warren A Edblad

Suresh K V Vishnubhatla

Donal A Spillane

A logic controller includes a memory for storing representations of boolean logic. The boolean logic includes AND and OR boolean logic functions having target values and a plurality of inputs. The processor of the logic controller has input/output circuitry and communications circuitry which provide a plurality of input/output digital logic signals. The processor employs the digital logic signals and solves the boolean logic representations. A firmware routine solves each boolean logic function when the value of any of its inputs is equal to its target value.

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Manor Township, PA, United States of America

Richard W Kephart, Jr