IEC 61158-3-24:2023
(Main)Industrial communication networks - Fieldbus specifications - Part 3-24: Data-link layer service definition - Type 24 elements
Industrial communication networks - Fieldbus specifications - Part 3-24: Data-link layer service definition - Type 24 elements
IEC 61158-3-24:2023 provides common elements for basic time-critical messaging communications between devices in an automation environment. 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 document defines in an abstract way the externally visible service provided by the Type 24 fieldbus data-link layer in terms of
the primitive actions and events of the service;
the interrelationship between these actions and events, and their valid sequences;
the parameters associated with each primitive action and event, and the form which they take.
Réseaux de communication industriels - Spécifications des bus de terrain - Partie 3-24: Définition des services de la couche liaison de données - Éléments de type 24
L'IEC 61158-3-24:2023 fournit les éléments communs pour les communications de messagerie prioritaires entre les appareils d’un environnement d’automatisation. Le terme "prioritaire" est utilisé pour indiquer la présence d’une fenêtre temporelle, dans laquelle il est exigé de réaliser une ou plusieurs actions spécifiées selon un niveau défini de certitude. Tout manquement à réaliser ces actions dans la fenêtre de temps prévue risque de provoquer la défaillance des applications qui les demandent, avec le risque de mettre en danger l’équipement, l’usine, voire les personnes.
Le présent document définit de manière abstraite le service visible externe fourni par la couche liaison de données de bus de terrain de type 24, concernant:
les actions et événements liés aux primitives du service;
l’interrelation entre ces actions et événements, et leurs séquences valides;
les paramètres associés à chaque action et événement de primitive, et la forme qu’ils prennent.
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Standards Content (Sample)
IEC 61158-3-24
®
Edition 2.0 2023-03
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Fieldbus specifications –
Part 3-24: Data-link layer service definition – Type 24 elements
IEC 61158-3-24:2023-03(en)
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IEC 61158-3-24
®
Edition 2.0 2023-03
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Fieldbus specifications –
Part 3-24: Data-link layer service definition – Type 24 elements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.20; 35.110 ISBN 978-2-8322-6563-5
Warning! Make sure that you obtained this publication from an authorized distributor.
® Registered trademark of the International Electrotechnical Commission
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– 2 – IEC 61158-3-24:2023 © IEC 2023
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
1.1 General . 8
1.2 Specifications . 8
1.3 Conformance . 8
2 Normative references . 9
3 Terms, definitions, symbols, abbreviated terms and conventions . 9
3.1 Reference model terms and definitions . 9
3.2 Service convention terms and definitions . 10
3.3 Additional Type 24 data-link specific definitions . 10
3.4 Common symbols and abbreviations . 13
3.5 Additional type 24 symbols and abbreviations .
...
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