IEC 61158-3-2:2023
(Main)Industrial communication networks - Fieldbus specifications - Part 3-2: Data-link layer service definition - Type 2 elements
Industrial communication networks - Fieldbus specifications - Part 3-2: Data-link layer service definition - Type 2 elements
IEC 61158-3-2:2023 is one of a series produced to facilitate the interconnection of automation system components. It is related to other standards in the set as defined by the "three-layer" fieldbus reference model described in IEC 61158‑1.
Throughout the set of fieldbus standards, the term "service" refers to the abstract capability provided by one layer of the OSI Basic Reference Model to the layer immediately above. Thus, the data-link layer service defined in this document is a conceptual architectural service, independent of administrative and implementation divisions.
Réseaux de communication industriels - Spécifications des bus de terrain - Partie 3-2: Définition des services de la couche liaison de données - Éléments de type 2
L’IEC 61158-3-2:2023 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. La non-réalisation des actions spécifiées dans la fenêtre temporelle induit un risque de défaillance des applications qui demandent ces actions, avec les risques qui en découlent pour l’équipement, les installations et éventuellement la vie humaine.
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IEC 61158-3-2 ®
Edition 3.0 2023-03
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 3-2: Data-link layer service definition – Type 2 elements
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IEC 61158-3-2 ®
Edition 3.0 2023-03
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 3-2: Data-link layer service definition – Type 2 elements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.20; 35.110 ISBN 978-2-8322-6558-1
– 2 – IEC 61158-3-2:2023 © IEC 2023
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
1.1 General . 9
1.2 Specifications . 9
1.3 Conformance . 9
2 Normative references . 10
3 Terms, definitions, symbols, abbreviated terms and conventions . 10
3.1 Reference model terms and definitions . 10
3.2 Service convention terms and definitions . 12
3.3 Common data-link service terms and definitions . 12
3.4 Additional Type 2 data-link specific definitions . 14
3.5 Common symbols and abbreviations . 16
3.6 Additional Type 2 symbols and abbreviations . 17
3.7 Common conventions . 17
4 Connection-mode and connectionless-mode data-link service . 18
4.1 Overview. 18
4.1.1 Data transfer services . 18
4.1.2 DL-management services . 22
4.1.3 Timing services . 22
4.2 Facilities of the data-link service . 22
4.3 Model of the data-link service . 23
4.3.1 General . 23
4.3.2 DLS-instance identification . 23
4.3.3 Model of abstract queue concepts . 23
4.3.4 QoS features . 24
4.3.5 DLS-TxStatus . 25
4.3.6 Receive queues . 25
4.4 Sequence of primitives . 25
4.4.1 Constraints on sequence of primitives . 25
4.4.2 Relation of primitives at DLSAPs . 26
4.4.3 Sequence of primitives at one DLSAP. 27
4.5 Connection-mode data transfer . 27
4.5.1 General . 27
4.5.2 Function . 27
4.5.3 Types of primitives and parameters . 27
4.5.4 Sequence of primitives . 29
4.6 Connectionless-mode data transfer . 29
4.6.1 General . 29
4.6.2 Function . 29
4.6.3 Types of primitives and parameters . 30
4.6.4 Sequence of primitives . 32
4.7 Queue maintenance . 32
4.7.1 Function . 32
4.7.2 Types of primitives and parameters . 32
4.7.3 Request primitive . 33
4.7.4 Confirmation primitive . 33
4.7.5 Sequence of primitives . 33
4.8 Tag filter . 34
4.8.1 Function . 34
4.8.2 Types of primitives and parameters . 34
4.8.3 Sequence of primitives . 35
5 DL-management services . 35
5.1 Sequence of primitives . 35
5.2 Link synchronization . 36
5.2.1 Function . 36
5.2.2 Types of primitives and parameters . 36
5.2.3 Sequence of primitives . 37
5.3 Synchronized parameter change . 37
5.3.1 Function . 37
5.3.2 Types of primitives and parameters . 37
5.3.3 Sequence of primitives . 39
5.4 Event reports . 40
5.4.1 Function . 40
5.4.2 Types of primitives and parameters . 40
5.4.3 Sequence of primitives . 41
5.5 Bad FCS . 41
5.5.1 Function . 41
5.5.2 Types of primitives and parameters . 41
5.5.3 Sequence of primitives . 41
5.6 Current moderator. 42
5.6.1 Function . 42
5.6.2 Types of primitives and parameters . 42
5.6.3 Sequence of primitives . 42
5.7 Enable moderator . 42
5.7.1 Function . 42
5.7.2 Types of primitives and parameters . 42
5.7.3 Sequence of primitives . 43
5.8 Power-up and online . 43
5.8.1 Function . 43
5.8.2 Types of primitives and parameters . 43
5.8.3 Sequence of primitives . 44
5.9 Listen only . 44
5.9.1 Function . 44
5.9.2 Types of primitives and parameters . 45
5.9.3 Sequence of primitives . 45
5.10 Time distribution . 45
5.10.1 Function . 45
5.10.2 Types of primitives and parameters . 45
Bibliography . 48
Figure 1 – Relationships of DLSAPs, DLSAP-addresses and group DL-addresses . 13
Figure 2 – NUT structure . 19
Figure 3 – Medium access during scheduled time . 20
Figure 4 – Medium access during unscheduled time . 21
– 4 – IEC 61158-3-2:2023 © IEC 2023
Figure 5 – Queue model for the peer and multipoint DLS, DLSAPs and their DLCEPs . 22
Figure 6 – Queue model of a multipoint DLS between a sending DLS-user and one or
more receiving DLS-users .
...
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