IEC 61158-3-24:2023

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.

General Information

• Status: Published
• Publication Date: 15-Mar-2023
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.100.20 - Data link layer
• ICS: 35.110 - Networking
• 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: 16-Mar-2023

Relations

• Revises: IEC 61158-3-24:2014 - Industrial communication networks - Fieldbus specifications - Part 3-24: Data-link layer service definition - Type 24 elements
• Effective Date: 05-Sep-2023

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
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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

– 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 . 14
3.6 Common conventions . 14
3.7 Additional Type 24 conventions. 15
4 Data-link service and concepts . 15
4.1 Overview. 15
4.2 DLS-user services . 16
4.2.1 General . 16
4.2.2 Write data . 16
4.2.3 Read data . 16
4.2.4 Send data with acknowledge service (SDA) . 16
4.2.5 Send data with no-acknowledge service (SDN) . 17
4.2.6 Event . 17
4.2.7 Get status . 17
4.3 Overview of interactions . 17
4.4 Detailed specification of services and interactions . 19
4.4.1 Write data . 19
4.4.2 Read data . 20
4.4.3 Send data with acknowledge . 21
4.4.4 Send data with no-acknowledge (SDN) . 22
4.4.5 Cyclic Event . 23
5 DL-management service . 23
5.1 Overview. 23
5.1.1 General . 23
5.1.2 Reset . 23
5.1.3 Set value . 24
5.1.4 Get value . 24
5.1.5 Evaluate delay . 24
5.1.6 Set communication mode . 24
5.1.7 Start communication . 24
5.1.8 Clear error status . 24
5.1.9 DLM Event . 24
5.2 Overview of interactions . 24
5.3 Detailed specification of services and interactions . 26
5.3.1 Reset . 26

5.3.2 Set value . 27
5.3.3 Get value . 32
5.3.4 Evaluate delay . 34
5.3.5 Set communication mode . 35
5.3.6 Start communication . 37
5.3.7 Clear error . 38
5.3.8 DLM error event . 39
Bibliography . 40

Figure 1 – Sequence of primitive for set data and read data service . 18
Figure 2 – Sequence of primitive for send data with acknowledge service . 18
Figure 3 – Sequence of primitive for send data with no-acknowledge service . 19
Figure 4 – Sequence of primitives for event service . 19
Figure 5 – Sequence of primitives for Reset service . 25
Figure 6 – Sequence of primitives for Set/get value service . 25
Figure 7 – Sequence of primitives for Evaluate delay service . 26
Figure 8 – Sequence of primitives for Start communication service . 26
Figure 9 – Sequence of primitives for Event and Clear error status service . 26

Table 1 – The list of DLS service primitives and parameters . 17
Table 2 – Write data primitives and parameters . 19
Table 3 – Values of result for write data service . 20
Table 4 – Read data primitives and parameters . 20
Table 5 – Values of result for read data service . 20
Table 6 – SDA primitives and parameters . 21
Table 7 – Values of result for SDA service . 21
Table 8 – SDN primitives and parameters . 22
Table 9 – Values of result for SDN service . 22
Table 10 – Event primitives and parameters . 23
Table 11 – Values of Event_ID for event service . 23
Table 12 – The list of DLMS service primitives and parameters . 24
Table 13 – Set value primitive and parameters. 27
Table 14 – The list of parameter Var_ID of Set value request . 27
Table 15 – Data type and range of variables . 28
Table 16 – List of the values of variable Cyc_sel . 29
Table 17 – List of the values of variable T . 30
unit
Table 18 – Structure example of each element of variable IO_Map . 30
Table 19 – Data type and range of each element . 31
Table 20 – List of the values of variable Line code . 31
Table 21 – List of the values of variable Baud rate . 31
Table 22 – List of the values of variable Line code and Baud rate . 31
Table 23 – Values of result for Set value service . 32
Table 24 – Get value primitive and parameters . 32
Table 25 –The list of parameter Var_ID of Get value request . 33

– 4 – IEC 61158-3-24:2023 © IEC 2023
Table 26 – Data type and range of variables . 33
Table 27 – Error factor assign . 34
Table 28 – Values of result for Get value service . 34
Table 29 – Evaluate delay primitive and parameters . 35
Table 30 – Values of result for Set value service . 35
Table 31 – Set communication mode primitives and parameters . 36
Table 32 – Range of T .
...