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Object oriented extensions of IEC 61131–3 as an enabling technology of software product lines

Object oriented extensions of IEC 61131–3 as an enabling technology of software product lines,10.1109/ETFA.2011.6059113,Nikolaos Papakonstantinou,Sepp

Object oriented extensions of IEC 61131–3 as an enabling technology of software product lines  
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Software product lines (SPL) relying on UML technology have been a breakthrough in software reuse in the IT domain. In the industrial automation domain, SPL are not yet established in industrial practice. One reason for this is that conventional function block programming techniques do not adequately support SPL architecture definition and product configuration, while UML tools are not industrially accepted for control software development. In this paper, the use of object oriented (OO) extensions of IEC 61131-3 are used to bridge this gap. The SPL architecture and product specifications are expressed as UML class diagrams, which serve as straightforward specifications for configuring the IEC 61131-3 control application with OO extensions. A product configurator tool has been developed using PLCopen XML technology to support the generation of an executable IEC 61131-3 application according to chosen product options. The approach is demonstrated using a mobile elevating working platform as a case study.
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