NE191 "Information model for the representation of connected PCT components to standardise the exchange of data throughout the plant life cycle" has been newly published

The NAMUR Recommendation NE 191 from the WG 1.3 Information Management and Tools has been released and may now be obtained from the NAMUR Office.

Abstract to NE 191 "Information model for the representation of connected PCT components to standardise the exchange of data throughout the plant life cycle"

This NAMUR Recommendation sets out requirements for an information model that describes the electrical structure of a process plant and which forms the basis for the automated, iterative and bidirectional exchange of data between CAE systems used for basic and detail level PCT design. It is mainly aimed at manufacturers of CAE systems for PCT design and serves as a source of information for the interested user.

When designing a process plant network, the determined process structure needs to be translated into a hierarchically arranged plant structure in which each of the designed objects is universally specified across all involved disciplines. Standardised information models are already available in the field of process engineering, which provide a means of digital representation of both the hierarchical structures and the interconnected plant objects. DEXPI is the most comprehensive information model in this regard. However, no such standardised information model including digital representations of both the electrical wiring network and the related PCT objects is currently available in the field of electrical engineering.

This NAMUR Recommendation aims to define the requirements for an interface for the bidirectional data exchange between CAE systems used for basic and detail level PCT design that is workable, non-proprietary and partially automated. To this end, this Recommendation defines a data model that standardises both the graphical and textual representation of information pertaining to PCT objects in location-oriented or function-oriented circuit diagrams. This includes characterising these objects and describing their hierarchical structure as well as their connections, in order to build an electrical wiring network.