Control system with diagnostic logic

Details Control system with diagnostic logic Control system with diagnostic logic

G - Physics

05

B

342/11, 342/21

G05B 19/04 (2006.01) G05B 19/05 (2006.01) G05B 19/4063 (2006.01)

Patent

CA 1305238

Abstract of the Disclosure A system and method for controlling operation of a plurality of elements in an automated process, such as a production process, and indicating error conditions as they occur. Each unique set of input and output conditions of the various system elements defines a unique logic state or zone. Thus, there are defined a multiplicity of valid system logic states or zones, each having a unique input/output image. A predetermined sequence of zones, productive zones representing designed machine operations, is stored in a zone table. All zones not explicitly defined in the zone table are automatically treated as error zones. A zone engine automatically cycles to observe any change in input/output image. Any change in inputs from the various system elements automatically transfer action to the unique zone associated with such inputs, resulting in corresponding changes in control outputs to the system elements and/or display an error message as appropriate.

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