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    I.S. EN 61158-6-21:2012

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    INDUSTRIAL COMMUNICATION NETWORKS - FIELDBUS SPECIFICATIONS - PART 6-21: APPLICATION LAYER PROTOCOL SPECIFICATION - TYPE 21 ELEMENTS (IEC 61158-6-21:2010 (EQV))

    Available format(s):  Hardcopy, PDF

    Superseded date:  14-09-2019

    Language(s):  English

    Published date:  01-01-2012

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms, definitions, symbols, abbreviations, and
       conventions
    4 FAL syntax description
    5 Transfer Syntax
    6 FAL protocol state machines
    7 AP context state machine
    8 FAL service protocol machine
    9 AR protocol machine
    10 DLL mapping protocol machine
    Bibliography
    Annex ZA (normative) - Normative references to international
             publications with their corresponding European
             publications

    Abstract - (Show below) - (Hide below)

    Gives common elements for basic time-critical and non-time-critical messaging communications between application programs in an automation environment, as well as material specific to Type 21.

    General Product Information - (Show below) - (Hide below)

    Development Note For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Superseded
    Superseded By

    Standards Referencing This Book - (Show below) - (Hide below)

    EN 61158-4-21:2012 Industrial communication networks - Fieldbus specifications - Part 4-21: Data-link layer protocol specification - Type 21 elements
    ISO/IEC 7498-3:1997 Information technology Open Systems Interconnection Basic Reference Model: Naming and addressing
    ISO/IEC 7498-1:1994 Information technology Open Systems Interconnection Basic Reference Model: The Basic Model
    ISO/IEC 8825-1:2015 Information technology ASN.1 encoding rules: Specification of Basic Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules (DER) Part 1:
    IEC 61158-4-21:2010 Industrial communication networks - Fieldbus specifications - Part 4-21: Data-link layer protocol specification - Type 21 elements
    IEC TR 61158-1:2010 Industrial communication networks - Fieldbus specifications - Part 1: Overview and guidance for the IEC 61158 and IEC 61784 series
    ISO/IEC 8824-2:2015 Information technology Abstract Syntax Notation One (ASN.1): Information object specification Part 2:
    EN 61158-3-21:2012 Industrial communication networks - Fieldbus specifications - Part 3-21: Data-link layer service definition - Type 21 elements
    ISO/IEC 10731:1994 Information technology Open Systems Interconnection Basic Reference Model Conventions for the definition of OSI services
    ISO/IEC 9545:1994 Information technology Open Systems Interconnection Application Layer structure
    IEC 61588:2009 Precision clock synchronization protocol for networked measurement and control systems
    IEC 61158-5-21:2010 Industrial communication networks - Fieldbus specifications - Part 5-21: Application layer service definition - Type 21 elements
    ISO/IEC 9899:2011 Information technology Programming languages C
    ISO/IEC 8824-1:2015 Information technology Abstract Syntax Notation One (ASN.1): Specification of basic notation Part 1:
    IEC 61158-3-21:2010 Industrial communication networks - Fieldbus specifications - Part 3-21: Data-link layer service definition - Type 21 elements
    IEEE 754-2008 REDLINE IEEE Standard for Floating-Point Arithmetic
    ISO/IEC 8822:1994 Information technology Open Systems Interconnection Presentation service definition
    EN 61158-5-21:2012 Industrial communication networks - Fieldbus specifications - Part 5-21: Application layer service definition - Type 21 elements
    IEC 61784-2:2014 Industrial communication networks - Profiles - Part 2: Additional fieldbus profiles for real-time networks based on ISO/IEC 8802-3
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