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Faculty of Science, University of Brunei Darussalam, Brunei Darussalam   
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IJIEE 2012 Vol.2(4): 575-580 ISSN: 2010-3719
DOI: 10.7763/IJIEE.2012.V2.164

ST to MISRA-C Translator and Proposed Changes in IEC61131-3 Standard

Ashutosh Kabra, Gopinath Karmakar, Jose Joseph, and R. K. patil

Abstract—Programmable Controllers (PLC) are being increasingly used in control systems including safety-critical systems like control application for Nuclear Power Plants. The reason lies in their ease of programming and configurability. They are programmed in languages complying to IEC 61131-3 standard. This work provides a necessary tool, ST to MISRA-C translator, for developing application program using textual language Structured Text (ST). During the development of the translator, the authors found some issues with ST language syntax and semantics given in IEC-61131-3 standard (second edition). These issues are discussed in this paper along with the other deficiencies identified by the other authors. We also proposed some changes in grammar of ST language for its unambiguous parsing.

Index Terms—IEC 61131-3, PLC programming language, ST, POU, function block, program, translator.

The Authors are with the Bhabha Atomic Research Centre, Mumbai, 400085 India (e-mail: {kabra, gkarma, jjoseph, rkpati} @ barc.gov.in).


Cite: Ashutosh Kabra, Member, IACSIT, Gopinath Karmakar, Member, IACSIT, Jose Joseph, and R. K. patil, "ST to MISRA-C Translator and Proposed Changes in IEC61131-3 Standard," International Journal of Information and Electronics Engineering vol. 2, no. 4, pp. 575-580, 2012.

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