IEC 61158-3-28:2023

Industrial communication networks - Fieldbus specifications - Part 3-28: Data-link layer service definition - Type 28 elements

IEC 61158-3-28:2023 describes basic packet communication services and models in an automation control industrial field environment. The Type 28 data-link layer provides time-critical and non-time-critical communication services. Time-critical refers to the requirement to complete specified functions between devices in a defined time window in an industrial field environment. Failure to complete specified functions within the time window can lead to failure or harm in industrial production.

Réseaux de communication industriels - Spécifications des bus de terrain - Partie 3-28: Définition des services de la couche liaison de données - Éléments de type 28

IEC 61158-3-28:2023 décrit les services et modèles de communication de paquets de base dans un environnement de terrain industriel de commande d’automatisation. La couche liaison de données de type 28 fournit des services de communication prioritaires et non prioritaires. L’expression "prioritaire" fait référence à l’exigence de terminer les fonctions spécifiées entre les appareils dans une fenêtre temporelle définie dans un environnement de terrain industriel. La non‑réalisation des fonctions spécifiées dans la fenêtre temporelle peut entraîner une défaillance ou un préjudice dans la production industrielle.

General Information

• Status: Published
• Publication Date: 06-Mar-2023
• ICS: 25.040 - Industrial automation systems
• Technical Committee: SC 65C - Industrial networks
• Drafting Committee: WG 9 - TC 65/SC 65C/WG 9
• Current Stage: PPUB - Publication issued
• Start Date: 31-Mar-2023
• Completion Date: 07-Mar-2023

Standards Content (Sample)

IEC 61158-3-28
®

Edition 1.0 2023-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside


Industrial communication networks – Fieldbus specifications –
Part 3-28: Data-link layer service definition – Type 28 elements

Réseaux de communication industriels – Spécifications des bus de terrain –
Partie 3 28: Définition des services de la couche liaison de données – Éléments
de type 28

IEC 61158-3-28:2023-03(en-fr)

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IEC 61158-3-28

®


Edition 1.0 2023-03




INTERNATIONAL



STANDARD




NORME


INTERNATIONALE
colour

inside










Industrial communication networks – Fieldbus specifications –

Part 3-28: Data-link layer service definition – Type 28 elements



Réseaux de communication industriels – Spécifications des bus de terrain –

Partie 3 28: Définition des services de la couche liaison de données – Éléments

de type 28















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 25.040 ISBN 978-2-8322-6573-4



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – IEC 61158-3-28:2023 © 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, abbreviated terms and conventions . 9
3.1 Reference model terms and definitions . 9
3.2 Service convention terms and definitions . 11
3.3 Common data-link service terms and definitions . 11
3.4 Additional Type 28 data-link specific definitions . 13
3.5 Common symbols and abbreviations . 15
3.6 Additional Type 28 symbols and abbreviations . 15
4 Type 28 Data-link service . 16
4.1 Overview. 16
4.2 Model of the DLS . 17
4.2.1 General . 17
4.2.2 Connection-less mode data transmission with acknowledge (CLMDTA) . 17
4.2.3 Connection-less mode data transmission with no acknowledge
(CLMDTNA) . 17
4.2.4 Connection-less mode data transmission with request and acknowledge
(CLMDTRA) . 17
4.2.5 Connection-less mode data transmission with request and response but
no acknowledge (CLMDTRRNA) . 18
4.2.6 Connection mode data transmission with acknowledge (CMDTA) . 18
4.2.7 Connection mode data transmission with no acknowledge (CMDTNA) . 18
4.3 Detailed description of DLS . 18
4.3.1 CLMDTA . 18
4.3.2 CLMDTNA . 20
4.3.3 CLMDTRA . 22
4.3.4 CLMDTRRNA . 25
4.3.5 CMDTA . 27
4.3.6 CMDTNA . 29
4.4 Detailed description of DLCSS. 30
4.4.1 General . 30
4.4.2 Delay measurement . 31
4.4.3 Clock synchronization . 33
4.4.4 Clock interrupt . 35
5 Type 28 Data-link management service . 36
5.1 Overview. 36
5.2 DLMS related information table . 36
5.2.1 General . 36
5.2.2 Protocol stack version management Information table . 37
5.2.3 Link node management Information table . 37
5.2.4 Link timeout management information table . 38
5.3 Detailed description of DLMS . 40

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IEC 61158-3-28:2023 © IEC 2023 – 3 –
5.3.1 General . 40
5.3.2 Config . 40
5.3.3 Discovery . 45
5.3.4 Maintenance . 47
5.3.5 Establish . 51
5.3.6 Release . 53
5.3.7 Update . 54
Bibliography . 57

Figure 1 – Relationships of DLSAPs, DLSAP-addresses and group DL-addresses . 12
Figure 2 – Bitmap Data type diagram . 15
Figure 3 – Primitive process of CLMDTA . 19
Figure 4 – Primitive process of CLMDTNA . 21
Figure 5 – Primitive process of CLMDTRA . 23
Figure 6 – Primitive process of CLMDTRRNA . 25
Figure 7 – Primitive process of CMDTA . 27
Figure 8 – Primitive process of CMDTNA . 29
Figure 9 – Delay measurement service primitive process . 31
Figure 10 – Clock synchronization service primitive process . 33
Figure 11 – Clock interrupt service primitive process . 35
Figure 12 – Data-link config management service primitive process . 41
Figure 13 – TN active logout discovery service primitive process . 45
Figure 14 – Data-link discovery management service primitive process . 45
Figure 15 – Local data-link maintenance service primitive process . 48
Figure 16 – Remote data-link maintenance service primitive process . 48
Figure 17 – Data-link establish management service primitive process . 51
Figure 18 – Data-link release management service primitive sequence diagram . 53
Figure 19 – Data-link update management service primitive sequence diagram . 55

Table 1 – DTS status output value . 16
Table 2 – DLCSS status return value . 17
Table 3 – CLMDTA service primitives and parameters . 20
Table 4 – CLMDTA service primitive parameter . 20
Table 5 – CLMDTNA service primitives and parameters . 22
Table 6 – CLMDTNA service primitive parameter . 22
Table 7 – CLMDTRA service primitives and parameters . 24
Table 8 – CLMDTRA service primitive parameter . 24
Table 9 – CLMDTRRNA service primitives and parameters . 26
Table 10 – CLMDTRRNA service primitive parameter . 26
Table 11 – CMDTA service primitives and parameters . 28
Table 12 – CMDTA service primitive parameter . 28
Table 13 – CMDTNA service primitives and parameters . 30
Table 14 – CMDTNA service primitive parameter . 30
Table 15 – Delay measurement service primitives and parameters . 32

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Table 16 – Delay measurement service primitive parameter . 32
Table 17 – Clock synchronization service primitives and parameters . 34
Table 18 – Clock synchronization service primitive parameter . 34
Table 19 – Clock interrupt service primitives and parameters . 35
Table 20 – Clock interrupt service primitive parameter . 36
Table 21 – Protocol stack version management Information table . 37
Table 22 – Link node management Information table . 37
Table 23 – Link timeout management information table . 39
Table 24 – DLMS status return value . 40
Table 25 – Data-link config management service . 41
Table 26 – Data-link config management service primitive parameter . 41
Table 27 – CFG_PARAM_INFO structure . 42
Table 28 – TIMEOUT_CFG structure . 43
Table 29 – GROUP_IDMAP_S structure . 43
Table 30 – NODEID_MAC_S structure . 44
Table 31 – COMM_RES_CFG structure . 44
Table 32 – Data-link discovery service primitives and parameters . 46
Table 33 – Data-link discovery management service primitive parameter . 46
Table 34 – NODE_MGT_INFO_S structure . 47
Table 35 – Data-link maintenance service primitives and parameters . 49
Table 36 – Data-link maintenance service primitive parameter . 49
Table 37 – DIAG_INFO_S structure (Command in range from 0x00 to 0x05) . 50
Table 38 – DIAG_INFO_S structure (Command = 0x06) . 50
Table 39 – Data-link establish management service primitives and parameters . 52
Table 40 – Data-link establish management service parameter . 52
Table 41 – CH_RES_INFO_S structure . 52
Table 42 – Data-link release management service primitives and parameters . 54
Table 43 – Data-link release management service primitive parameter . 54
Table 44 – Data-link update management service primitives and parameters . 56
Table 45 – Data-link update management service primitive parameter . 56

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IEC 61158-3-28:2023 © IEC 2023 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

INDUSTRIAL COMMUNICATION NETWORKS –
FIELDBUS SPECIFICATIONS –

Part 3-28: Data-link layer service definition –
Type 28 elements

FOREWORD
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Attention is drawn to the fact that the use of the associated protocol type is restricted by its
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NOTE Combinations of protocol types are specified in the IEC 61784-1 series and the IEC 61784-2 series.
IEC 61158-3-28 has been prepared by subcommittee 65C: Industrial networks, of IEC technical
committee 65: Industrial-process measurement, control and automation. It is an International
Standard.

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– 6 – IEC 61158-3-28:2023 © IEC 2023
The text of this International Standard is based on the following documents:
Draft Report on voting
65C/1206/FDIS 65C/1235/RVD

Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all the parts of the IEC 61158 series, under the general title Industrial communication
networks – Fieldbus specifications, can be found on the IEC web site.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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IEC 61158-3-28:2023 © IEC 2023 – 7 –
INTRODUCTION
This document 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.

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INDUSTRIAL COMMUNICATION NETWORKS –
FIELDBUS SPECIFICATIONS –

Part 3-28: Data-link layer service definition –
Type 28 elements



1 Scope
1.1 General
This part of IEC 61158 describes basic packet communication services and models in an
automation control industrial field environment. The Type 28 data-link layer provides time-
critical and non-time-critical communication services. Time-critical refers to the requirement to
complete specified functions between devices in a defined time window in an industrial field
environment. Failure to complete specified functions within the time window can lead to failure
or harm in industrial production.
This document defines in an abstract way the externally visible service provided by the Type
28 fieldbus data-link layer in terms of
a) function description;
b) primitive actions and events with primitive sequence diagram;
c) the form of externally service interface and related parameters.
The purpose of this document is to define the services provided to:
• the Type 28 fieldbus application layer at the boundary between the application and data-link
layers of the fieldbus reference model;
• systems management at the boundary between the data-link layer and systems
management of the fieldbus reference model.
Type 28 DL-service provides both a connected and a connectionless subset of those services
provided by OSI data-link protocols as specified in ISO/IEC 8886.
1.2 Specifications
The principal objective of this document is to specify the characteristics of conceptual data-link
layer services suitable for time-critical communications and thus supplement the OSI Basic
Reference Model in guiding the development of data-link protocols for time-sensitive
communications. A secondary objective is to provide migration paths from previously-existing
industrial communications protocols.
This specification can be used as the basis for formal DL-Programming-Interfaces.
Nevertheless, it is not a formal programming interface, and any such interface will need to
address implementation issues not covered by this specification, including:
a) the sizes and octet ordering of various multi-octet service parameters; and
b) the correlation of paired request and confirm, or indication and response primitives.
1.3 Conformance
This document does not specify individual implementations or products, nor does it constrain
the implementations of data-link entities within industrial automation systems.

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IEC 61158-3-28:2023 © IEC 2023 – 9 –
There is no conformance of equipment to this data-link layer service definition standard. Instead,
conformance is achieved through implementation of the corresponding data-link protocol that
fulfills the Type 28 data-link layer services defined in this document.
2 Normative references
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 All parts of the IEC 61158 series, as well as the IEC 61784-1 series and the IEC 61784-2 series are
maintained simultaneously. Cross-references to these documents within the text therefore refer to the editions as
dated in this list of normative references.
...