EN IEC 61158-4-24:2019

Industrial communication networks - Fieldbus specifications - Part 4-24: Data-link layer protocol specification - Type 24 elements

IEC 61158-4-24:2019 specifies procedures for the timely transfer of data and control information from one data-link user entity to a peer user entity, and among the data-link entities forming the distributed data-link service provider and the structure of the fieldbus DLPDUs used for the transfer of data and control information by the protocol of this standard, and their representation as physical interface data units. This second edition cancels and replaces the first edition published in 2014. This edition constitutes a technical revision with the following technical changes: •patent declaration in the Introduction; •corrections on transmission sequence of fixed-width time slot type in 4.3.2; •technical extension for band sharing between I/O data exchange and message communication; •spelling and grammar

Industrielle Kommunikationsnetze - Feldbusse - Teil 4-24: Protokollspezifikation des Data-Link Layer (Sicherungsschicht) - Typ 24-Elemente

Réseaux de communication industriels - Spécifications des bus de terrain - Partie 4-24: Spécification du protocole de la couche liaison de données - Éléments de type 24

L'IEC-61158-4-24:2019 spécifie a) les procédures de transfert en temps opportun des données et des informations de commande entre une entité utilisateur de liaison de données et une entité utilisateur homologue et, parmi les entités de liaison de données formant le fournisseur de services distribués de liaison de données; b) les procédures pour donner des opportunités de communication à toutes les entités DL participantes, séquentiellement et de manière cyclique pour le transfert déterministe et synchronisé à intervalles cycliques pouvant aller jusqu'à 64 ms; c) les procédures pour donner les opportunités de communication disponibles pour la transmission de données prioritaires ainsi que pour la transmission de données non prioritaires, sans nuire à la transmission de données prioritaire; d) les procédures pour donner des opportunités de communication cyclique et acyclique pour la transmission de données prioritaires avec accès hiérarchisés; e) les procédures pour donner des opportunités de communication selon le contrôle d'accès au support physique normalisé par l'ISO/IEC/IEEE 8802 3, avec des dispositions pour les nœuds à ajouter ou à retirer lors du fonctionnement normal; f) la structure des DLPDU de bus de terrain utilisées par le protocole du présent document pour le transfert des données et des informations de commande, et leur représentation sous forme d'unités de données d'interface physique.

Industrijska komunikacijska omrežja - Specifikacije za procesna vodila - 4-24. del: Specifikacija protokola na ravni podatkovnih povezav - Elementi tipa 24 (IEC 61158-4-24:2019)

Nivo podatkovnih povezav omogoča osnovne časovno kritične sporočilne komunikacije med napravami v avtomatizacijskem okolju. Ta protokol omogoča komunikacijske priložnosti vsem sodelujočim entitetam podatkovnih povezav a) na cikličen način s sinhronim začetkom v skladu z vnaprej določenim razporedom ali b) na necikličen način, kot zahtevajo posamezne entitete podatkovnih povezav. Tako lahko ta protokol opredelimo kot protokol, ki asinhrono omogoča cikličen in acikličen dostop s sinhronim ponovnim zagonom vsakega cikla.

General Information

• Status: Published
• Publication Date: 20-Jun-2019
• Withdrawal Date: 22-May-2022
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.100.20 - Data link layer
• ICS: 35.110 - Networking
• Technical Committee: CLC/TC 65X - Industrial-process measurement, control and automation
• Drafting Committee: IEC/SC 65C - IEC_SC_65C
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 21-Jun-2019
• Completion Date: 21-Jun-2019
• Ref Project: SIST EN IEC 61158-4-24:2019 - Industrial communication networks - Fieldbus specifications - Part 4-24: Data-link layer protocol specification - Type 24 elements (IEC 61158-4-24:2019)

Relations

• Replaces: EN 61158-4-24:2014 - Industrial communication networks - Fieldbus specifications - Part 4-24: Data-link layer protocol specification - Type 24 elements
• Effective Date: 25-Jun-2019
• Replaced By: EN IEC 61158-4-24:2023 - Industrial communication networks - Fieldbus specifications - Part 4-24: Data-link layer protocol specification - Type 24 elements
• Effective Date: 11-Apr-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2019
Nadomešča:
SIST EN 61158-4-24:2015
Industrijska komunikacijska omrežja - Specifikacije za procesna vodila - 4-24. del:
Specifikacija protokola na ravni podatkovnih povezav - Elementi tipa 24 (IEC 61158
-4-24:2019)
Industrial communication networks - Fieldbus specifications - Part 4-24: Data-link layer
protocol specification - Type 24 elements (IEC 61158-4-24:2019)
Industrielle Kommunikationsnetze - Feldbusse - Teil 4-24: Protokollspezifikation des
Data Link Layer (Sicherungsschicht) - Typ 24-Elemente (IEC 61158-4-24:2019)
Réseaux de communication industriels - Spécifications des bus de terrain - Partie 4-24:
Spécification du protocole de la couche liaison de données - Éléments de type 24 (IEC
61158-4-24:2019)
Ta slovenski standard je istoveten z: EN IEC 61158-4-24:2019
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.20 Podatkovni povezovalni sloj Data link layer
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61158-4-24

NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2019
Supersedes EN 61158-4-24:2014
ICS 25.040.40; 35.100.20; 35.110
English Version
Industrial communication networks - Fieldbus specifications -
Part 4-24: Data-link layer protocol specification - Type 24
elements
(IEC 61158-4-24:2019)
Réseaux de communication industriels - Spécifications des Industrielle Kommunikationsnetze - Feldbusse - Teil 4-24:
bus de terrain - Partie 4-24: Spécification du protocole de la Protokollspezifikation des Data Link Layer
couche liaison de données - Éléments de type 24 (Sicherungsschicht) - Typ 24-Elemente
(IEC 61158-4-24:2019) (IEC 61158-4-24:2019)
This European Standard was approved by CENELEC on 2019-05-23. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61158-4-24:2019 E

European foreword
The text of document 65C/946/FDIS, future edition 2 of IEC 61158-4-24, prepared by SC 65C
"Industrial networks" of IEC/TC 65 "Industrial-process measurement, control and automation" was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61158-4-
24:2019.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-02-23
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-05-23
document have to be withdrawn
This document supersedes EN 61158-4-24:2014.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 61158-4-24:2019 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 61158-1 NOTE Harmonized as EN 61158-1
IEC 61784-1 NOTE Harmonized as EN 61784-1
IEC 61784-2 NOTE Harmonized as EN 61784-2

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 61158-2 -  Industrial communication networks - EN 61158-2 -
Fieldbus specifications - Part 2: Physical
layer specification and service definition
IEC 61158-3-24 2014 Industrial communication networks - EN 61158-3-24 2014
Fieldbus specifications - Part 3-24: Data-
link layer service definition - Type 24
elements
ISO/IEC 7498-1 -  Information technology - Open Systems - -
Interconnection - Basic reference model:
The basic model
ISO/IEC 7498-3 -  Information technology - Open Systems - -
Interconnection - Basic reference model:
Naming and addressing
ISO/IEC 9899 -  Information technology - Programming - -
languages - C
ISO/IEC 10731 -  Information technology - Open Systems - -
Interconnection - Basic Reference Model -
Conventions for the definition of OSI
services
ISO/IEC 13239 2002 Information technology_- - -
Telecommunications and information
exchange between systems_- High-level
data link control (HDLC) procedures
ISO/IEC 19501 2005 Information technology - Open Distributed - -
Processing - Unified Modeling Language
(UML) Version 1.4.2
ISO/IEC/IEEE 8802-2017 Standard for Ethernet - -
IEC 61158-4-24 ®
Edition 2.0 2019-04
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – Fieldbus specifications –

Part 4-24: Data-link layer protocol specification – Type 24 elements

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.20; 35.110 ISBN 978-2-8322-6779-0

– 2 – IEC 61158-4-24:2019 © IEC 2019
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 10
1.1 General . 10
1.2 Specifications . 10
1.3 Procedures . 10
1.4 Applicability . 11
1.5 Conformance . 11
2 Normative references . 11
3 Terms, definitions, symbols, abbreviations and conventions . 12
3.1 Reference model terms and definitions . 12
3.2 Service convention terms and definitions . 13
3.3 Common terms and definitions . 13
3.4 Symbols and abbreviations . 16
3.5 Additional Type 24 symbols and abbreviations . 17
3.6 Common Conventions . 17
3.7 Additional Type 24 conventions . 18
3.7.1 Primitive conventions . 18
3.7.2 State machine conventions . 18
4 Overview of DL-protocol . 19
4.1 Characteristic feature of the DL-protocol . 19
4.2 DL layer component . 20
4.2.1 Cyclic transmission control (CTC) . 21
4.2.2 Send Receive Control (SRC) . 21
4.2.3 DL-management . 21
4.3 Timing sequence. 21
4.3.1 Overview . 21
4.3.2 Cyclic transmission mode . 21
4.3.3 Acyclic transmission mode . 29
4.4 Service assumed from the PhL . 30
4.4.1 General requirement . 30
4.4.2 DL_Symbols . 30
4.4.3 Assumed primitives of the PhS . 30
4.5 Local parameters, variables, counters, timers . 30
4.5.1 Overview . 30
4.5.2 Variables, parameters, counters and timers to support DLE function . 31
5 DLPDU structure . 35
5.1 Overview . 35
5.1.1 Transfer syntax for bit sequences . 35
5.1.2 Data type encodings . 36
5.1.3 Frame format . 36
5.2 Basic format DLPDU structure . 36
5.2.1 General . 36
5.2.2 Synchronous frame . 40
5.2.3 Output data or Input data frame . 40
5.2.4 Delay measurement start frame . 41

IEC 61158-4-24:2019 © IEC 2019 – 3 –
5.2.5 Delay measurement frame . 41
5.2.6 Message token frame . 42
5.2.7 Status frame . 42
5.2.8 Cycle Information frame . 43
5.2.9 Message frame . 44
5.3 Short format DLPDU structure. 45
5.3.1 General . 45
5.3.2 Synchronous frame . 47
5.3.3 Output data or Input data frame . 48
5.3.4 Message frame . 49
6 DLE element procedure . 49
6.1 Overview . 49
6.2 Cyclic transmission cont
...