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AssigneeSiemens Aktiengesellschaft
InventorsJuan L. Aparicio Ojea, George Lo, Justinian Rosca, Lingyun Wang
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A method of operating an intelligent programmable logic controller over a plurality of scan cycles includes the intelligent programmable logic controller selecting one or more soft-sensors available in a control program corresponding to a production unit, each soft-sensor comprising a local parameter or variable used by the control program. The intelligent programmable logic controller determines updated soft-sensor values corresponding to the one or more soft-sensors during each scan cycle and stores those values during each scan cycle on a non-volatile computer-readable storage medium operably coupled to the intelligent programmable logic controller. Additionally, the intelligent programmable logic controller annotates the updated soft-sensor values with automation system context information to generate contextualized data.
A method of operating a programmable logic controller in a control layer of n multi-layered automation system over a plurality of scan cycles, the method comprising:
A programmable logic controller operating in a control layer of a multi-layered automation system, the programmable logic controller comprising:
An article of manufacture for operating a programmable logic controller in a control layer of a multi-layered automation system over a plurality of scan cycles, the article of manufacture comprising a non-transitory, tangible computer-readable medium holding computer-executable instructions for performing a method comprising:
Dependencies are inferred from the claim text.