NDLI: Modeling and Clarifying the Execution of IEC 61499 Function Blocks Using XNet

Content Provider	IEEE Xplore Digital Library
Author	Hagge, N. Wagner, B.
Copyright Year	2007
Description	Author affiliation: Hanover Univ., Hanover (Hagge, N.; Wagner, B.)
Abstract	This paper aims at the clarification of the execution of IEC 61499 function block networks. A new event-discrete execution model called "handler-based execution model" (HB-XM) has been introduced for CNet in previous work that enables full automatic code generation for Petri-net based component descriptions [4]. The HB-XM abstracts from the CNet language elements and specifies how each element is treated for implementation. A new graphical notation called XNet representation -execution nets -has been defined to represent the resulting behavioral models [6]. The execution of IEC 61499 function blocks is defined using plain English text definitions. The model of the actual standard differs from the earlier draft. Several publications revealed that the standard still does not sufficiently and unambiguously define the execution behavior of function block networks. This paper uses XNet to visualize the different execution models and shows how the understanding of the XNet models will give natural answers to various ambiguities concerning the execution of function blocks.
Starting Page	1177
Ending Page	1182
File Size	305997
Page Count	6
File Format	PDF
ISBN	9781424408504
ISSN	19354576
DOI	10.1109/INDIN.2007.4384942
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-23
Publisher Place	Austria
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Visualization IEC function blocks Natural languages Standardization execution model Helium XNet Standards publication Programmable control IEC standards Abstracts Distributed control event-discrete execution Standards development
Content Type	Text
Resource Type	Article

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