A common plant model for modelling of physical plant items of a production plant

摘要

It is the objective of the present invention to provide a common plant model (CPM) for the MES, SCADA and DCS systems of a production facility benefitting from an integration architecture which enables a stringent and persistent modelling of the physical resources of the production facility for all type of systems (MES, SCADA, DCS) that attach to the common plant model. In particular, the CPM shall facilitate the definition of the physical and logical relation of the physical plant items.;This objective is achieved according to the present invention by a common plant model for modelling of physical plant items of a production plant within a manufacturing execution system having an engineering and a runtime environment, said common plant model comprising:a) a node type model aggregating different aspects for the modelling of a single physical plant item involving public interface parameters as well as automation parameters;b) a number of nodes, each representing an instance of a node type;c) a library model comprising a project library and a global library, said libraries comprising a node type model, a facet model and a rule model as well as a hierarchy model,d) a wiring chart model defining the interaction between interface members of different facets of the nodes; ande) a graph model representing physical and/or logical connections between the nodes, whereinf) the graph model comprises a number of graphs being provided by a graph repository;g) each graph comprises a graph definition in terms of an unique identifier, a couple of nodes being linked via a graph connection link and optionally one or more graph attributes enriching the graph connection link.