Full Papers:

• Virendra Ashiwal, Alois Zoitl: Messaging Interaction  Patterns for a Service Bus Concept of PLC-Software. PDF , öffnet eine DateiIn this paper, we identified patterns for interactions between software components in a PLC-Service bus environment. The patterns are inspired by the enterprise domain and are demonstrated based on a running example (VDMA demonstrator). The concept was previously published , öffnet eine externe URL in einem neuen Fensterin ETFA2020.
• Bianca Wiesmayr, Alois Zoitl, Antonio Garmendía, Manuel Wimmer: A Model-based Execution Framework for Interpreting Control Software. PDF, öffnet eine Datei This work discusses the execution semantics of IEC 61499 Basic FBs in detail. An interpreter was implemented to allow executing models directly, instead of generating code for a runtime first. This approach facilitates unit testing, thus, we present its integration with Service Sequences.
• Bianca Wiesmayr, Oscar Miguel-Escrig, Alois Zoitl, Julio-Ariel Romero-Pérez: Distributed implementation of hierarchical GRAFCETs through IEC 61499. PDF, öffnet eine Datei This paper is an extension of our successful paper at last year's ETFA, öffnet eine externe URL in einem neuen Fenster, handling the distributed implementation of GRAFCETs , öffnet eine externe URL in einem neuen Fensterin general. Now, we extended our approach to also cover hierarchical features of GRAFCETs such as Forcing and Enclosings, while retaining the hierarchical structure.
• Lisa Sonnleithner, Bianca Wiesmayr, Virendra Ashiwal, Alois Zoitl: IEC 61499 Distributed Design Patterns. PDF, öffnet eine Datei Building on previous work, öffnet eine externe URL in einem neuen Fenster, this paper illustrates how to realize fully distributed IEC 61499 applications without any orchestrating blocks. We show that our design provides improved understandability and adaptability, while maintaining a slim library with highly reusable Function Block types.

Work-in-progress papers:

• Michael Oberlehner, Lisa Sonnleithner, Bianca Wiesmayr, Alois Zoitl: Catalog of Refactoring Operations for IEC 61499. PDF, öffnet eine Datei This paper evaluates existing refactoring technologies from software engineering and maps them to IEC 61499. These approaches will facilitate maintaining large-scale IEC 61499 applications.
• Hafiyyan Sayyid Fadhillah, Bianca Wiesmayr, Michael Oberlehner, Rick Rabiser, Alois Zoitl: Towards Delta-Oriented Variability Modeling for IEC 61499. PDF , öffnet eine DateiWe present our idea for variability modeling in IEC 61499 using so-called delta models. This approach helps establishing systematic, strategic reuse of software for high-variability production systems.
• Lisa Sonnleithner, Sandor Bacsi, Michael Oberlehner, Elene Kutsia, Alois Zoitl: Do you smell it too? Towards Bad Smells in IEC 61499 Applications. PDF , öffnet eine Datei

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