IEC 61158-6-2:2019
(Main)Industrial communication networks - Fieldbus specifications - Part 6-2: Application layer protocol specification - Type 2 elements
Industrial communication networks - Fieldbus specifications - Part 6-2: Application layer protocol specification - Type 2 elements
IEC 61158-6-2:2019 provides common elements for basic time-critical and non-time-critical messaging communications between application programs in an automation environment and material specific to Type 2 fieldbus. The term “time-critical” is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level of certainty. Failure to complete specified actions within the time window risks failure of the applications requesting the actions, with attendant risk to equipment, plant and possibly human life.
This International Standard specifies interactions between remote applications and defines the externally visible behavior provided by the Type 2 fieldbus application layer. The purpose of this document is to define the protocol provided to
a) define the wire-representation of the service primitives defined in this document, and
b) define the externally visible behavior associated with their transfer. This document specifies the protocol of the Type 2 fieldbus application layer, in conformance with the OSI Basic Reference Model (ISO/IEC 7498-1) and the OSI application layer structure (ISO/IEC 9545).
This fourth edition includes the following significant technical changes with respect to the previous edition:
- clarifications of response PDU formats in case of failure in 4.1.5;
- clarifications of connection request priority definition and handling in 4.1.6.5 and 4.1.6.6;
- clarification of connection remaining path in 4.1.6.12;
- extensions of general syntax in 4.1.8.1;
- extensions and clarifications of Identity object PDUs in 4.1.8.2;
- updates of Assembly object PDUs in 4.1.8.4;
- extensions and clarification of Time sync object PDUs in 4.1.8.6;
- updates of Parameter object PDUs in 4.1.8.7;
- extensions of Connection Manager object PDUs in 4.1.8.8;
- clarifications of Connection object PDUs in 4.1.8.9;
- extensions and clarifications of message and connection paths in 4.1.9;
- updates of object and service class codes in 4.1.10 and error codes in 4.1.11;
- updates of data types in 4.2.4, 5.1.3 and 5.2.3;
- updates of the encapsulation abstract syntax in 4.3;
- updates to the DLL mapping protocol machine 2 in Clause 11;
- miscellaneous editorial corrections.
Réseaux de communication industriels - Spécifications des bus de terrain - Partie 6-2: Spécification du protocole de la couche liaison de données - Eléments de type 2
L’IEC 61158-6-2:2019 fournit des éléments communs pour les communications à temps critique ou non entre des programmes d'application dans un environnement et avec un matériel d'automation spécifiques aux bus de terrain de type 2. Le terme "à temps critique" signale l'existence d'une fenêtre temporelle dans laquelle est exigée la réalisation d'une ou de plusieurs actions spécifiées, avec un niveau de certitude défini. La non-réalisation des actions spécifiées dans la fenêtre temporelle induit un risque de défaillance des applications qui demandent ces actions, avec les risques relatifs à l'équipement, les installations et éventuellement la vie humaine.
Le présent document spécifie les interactions entre les applications distantes et définit le comportement, visible par un observateur externe, assuré par la couche application de bus de terrain de type 2, en termes
a) de syntaxe abstraite formelle définissant les unités de données de protocole de couche application, acheminées entre les entités d'application en communication;
b) de syntaxe de transfert définissant les règles de codage qui s'appliquent aux unités de données de protocole de couche application;
c) du diagramme d'états de contexte application définissant le comportement de service application visible entre des entités d'application engagées dans une communication;
d) de diagrammes d'états de relations d'applications définissant le comportement de communication visible entre les entités d'application en communication.
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IEC 61158-6-2
®
Edition 4.0 2019-06
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 6-2: Application layer protocol specification – Type 2 elements
IEC 61158-6-2:2019-06(en)
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IEC 61158-6-2
®
Edition 4.0 2019-06
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 6-2: Application layer protocol specification – Type 2 elements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.70; 35.110 ISBN 978-2-8322-7007-3
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® Registered trademark of the International Electrotechnical Commission
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– 2 – IEC 61158-6-2:2019 © IEC 2019
CONTENTS
FOREWORD . 14
INTRODUCTION . 16
1 Scope . 17
1.1 General . 17
1.2 Specifications . 17
1.3 Conformance . 18
2 Normative references . 18
3 Terms, definitions, symbols, abbreviated terms and conventions . 20
3.1 Terms and definitions from other ISO/IEC standards . 20
3.1.1 Terms and definitions from ISO/IEC 7498-1 . 20
3.1.2 Terms and definitions from ISO/IEC 9545 . 21
3.1.3 Terms and definitions from ISO/IEC 8824-1 . 21
3.1.4 Terms and definitions from ISO/IEC 8825-1 .
...
IEC 61158-6-2
®
Edition 4.0 2019-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial communication networks – Fieldbus specifications –
Part 6-2: Application layer protocol specification – Type 2 elements
Réseaux de communication industriels – Spécifications des bus de terrain –
Partie 6-2: Spécification du protocole de la couche liaison de données –
Eléments de type 2
IEC 61158-6-2:2019-06(en-fr)
---------------------- Page: 1 ----------------------
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International Standards for all electrical, electronic and related technologies.
About IEC publications
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