Representation of batch process procedures using Asset Administration Shell

Abstract

An Asset is an entity considered of importance for a company. It can be tangible such as machines, products, sensors, drawings, or intangible such as software. An Asset Administration Shell (AAS) provides a digital representation of an asset by means of submodels that may or may not be standardized. Standardized submodels allow interoperability with other assets. A digital Twin can be implemented by means of an AAS. A digital Twin specifying with high accuracy degree a production process (processing tasks, resources required) can improve the production planning and scheduling function. The ISA 88 standard provides a set of standards and terminology for batch process control, defining the physical model, procedures and recipes. The aim of the present work is to develop  a submodel that captures the information related to the batch production process based on the ISA 88 standard. Specifically, a submodel representing the production procedure based on the Sequential Function Chart language is presented.