IEC 61158-4-24:2014

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

IEC 61158-4-24:2014 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.

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

L'IEC 61158-4-24:2014 spécifie les procédures pour le transfert en temps utile de données et d'informations de commande d'une entité d'utilisateur de liaison de données vers une entité d'utilisateur homologue, et parmi les entités de liaison de données formant le fournisseur de service de liaison de données distribué et la structure des DLPDU du bus de terrain utilisée pour le transfert de données et d'informations de commande par le protocole de la présente norme, et leur représentation comme unités de données d'interface physique.

General Information

• Status: Published
• Publication Date: 14-Aug-2014
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 29.140.30 - Fluorescent lamps. Discharge lamps
• 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: DELPUB - Deleted Publication
• Completion Date: 18-Apr-2019

Relations

• Revised: IEC 61158-4-24:2019 - Industrial communication networks - Fieldbus specifications - Part 4-24: Data-link layer protocol specification - Type 24 elements
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61158-4-24


®


Edition 1.0 2014-08



INTERNATIONAL



STANDARD



NORME
INTERNATIONALE


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

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 61158-4-24:2014-08(en-fr)

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IEC 61158-4-24



®



Edition 1.0 2014-08







INTERNATIONAL





STANDARD







NORME



INTERNATIONALE











Industrial communication networks – Fieldbus specifications –

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




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
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX XE


ICS 25.040.40; 35.100.20; 35.110 ISBN 978-2-8322-1730-6



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 61158-4-24:2014 © IEC 2014


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 . 15
3.5 Additional type 24 symbols and abbreviations . 16
3.6 Common Conventions . 17
3.7 Additional Type 24 conventions . 18
4 Overview of DL-protocol . 19
4.1 Characteristic feature of DL-protocol . 19
4.2 DL layer component . 20
4.3 Timing sequence . 20
4.4 Service assumed from PhL . 28
4.5 Local parameters, variable, counters, timers . 29
5 DLPDU structure . 34
5.1 Overview . 34
5.2 Basic format DLPDU structure . 35
5.3 Short format DLPDU structure . 43
6 DLE element procedure . 47
6.1 Overview . 47
6.2 Cyclic transmission control sublayer . 47
6.3 Send Receive Control . 96
7 DL-management layer (DLM) . 103

7.1 Overview . 103
7.2 Primitive definitions . 103
7.3 DLM protocol machine . 104
7.4 Functions . 113
Bibliography . 115

Figure 1 – Data-link layer component . 20
Figure 2 – Timing chart of fixed-width time slot type cyclic communication . 21
Figure 3 – Timing chart of configurable time slot type cyclic communication . 23
Figure 4 – Schematic Diagram of Communication Interrupt Occurrence . 25
Figure 5 – Timing relationship between cyclic transmission and data processing . 27
Figure 6 – Timing chart example of acyclic communication . 28

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IEC 61158-4-24:2014 © IEC 2014 – 3 –


Figure 7 – Basic format DLPDU structure. 35

Figure 8 – Short format DLPDU structure . 43


Figure 9 – The state diagram of C1 master for fixed-width time slot . 49

Figure 10 – The state diagram of C2 master for fixed-width time slot . 55

Figure 11 – The state diagram of slave for fixed-width time slot . 59


Figure 12 – The state diagram of C1 master for configurable time slot . 62

Figure 13 – The state diagram of C2 master for configurable time slot . 70

Figure 14 – The state diagram of slave for configurable time slot . 73


Figure 15 – The state diagram of message initiator for basic format . 77
Figure 16 – The state diagram of message responder for basic format . 81
Figure 17 – The state diagram of message initiator for short format . 85
Figure 18 – The state diagram of message responder for short format . 89
Figure 19 – The state diagram of acyclic transmission protocol machine . 94
Figure 20 – Internal architecture of one-port SRC . 98
Figure 21 – Internal architecture of multi-port SRC . 98
Figure 22 – Internal architecture of serializer . 98
Figure 23 – Internal architecture of deserializer . 100
Figure 24 – State diagram of C1 master DLM . 105
Figure 25 – State diagram of Slave and C2 master DLM . 110

Table 1 – State transition descriptions . 18
Table 2 – Description of state machine elements . 18
Table 3 – Conventions used in state machines . 18
Table 4 – Characteristic features of the fieldbus data-link protocol . 19
Table 5 – List of the values of variable Cyc_sel . 29
Table 6 – List of the values of variable Tunit . 30
Table 7 – List of the values of variable PDUType . 32
Table 8 – List of the values of variable SlotType . 32
Table 9 – Transfer syntax for bit sequences . 34
Table 10 – Bit order . 35
Table 11 – Destination and Source address format . 36

Table 12 – Station address . 36
Table 13 – Extended address . 36
Table 14 – Message control field format (Information transfer format) . 36
Table 15 – Message control field format (Supervisory format) . 37
Table 16 – The list of Supervisory function bits . 37
Table 17 – Frame type and Data length format . 37
Table 18 – The list of Frame type. 38
Table 19 – Data format of Synchronous frame . 38
Table 20 – The field list of Synchronous frame. 39
Table 21 – Data format of Output data or Input data frame. 39
Table 22 – The field list of Output data or Input data frame . 39
Table 23 – Data format of Delay measurement start frame . 40

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Table 24 – The field list of Delay measurement start frame . 40

Table 25 – Data format of Delay measurement frame. 40


Table 26 – The field list of Delay measurement frame . 40

Table 27 – Data format of Status frame. 41

Table 28 – The field list of Status frame . 41


Table 29 – The list of the DLE status . 41

Table 30 – The list of Repeater status . 42

Table 31 – Data format of Delay measurement frame. 42


Table 32 – The field list of Cycle Information frame. 42
Table 33 – Data format of Message frae . 43
Table 34 – The field list of Message frame . 43
Table 35 – Range of Station address field. 44
Table 36 – Control field format (I/O data exchange format) . 44
Table 37 – Control field format (Message format) . 44
Table 38 – The field list of Message format . 45
Table 39 – Data format of Synchronous frame . 45
Table 40 – The field list of Sync frame . 46
Table 41 – Data format of Output data frame . 46
Table 42 – The field list of Output data frame . 46
Table 43 – Data format of Input data frame . 46
Table 44 – The field list of Input data frame . 46
Table 45 – The primitives and parameters for DLS-user interface issued by DLS-user . 47
Table 46 – The primitives and parameters for DLS-user interface issued by CTC . 47
Table 47 – The state table of C1 master for fixed-width time slot . 49
Table 48 – The state table of C2 master for fixed-width time slot . 56
Table 49 – The state table of slave for fixed-width time slot . 59
Table 50 – The state table of C1 master for configurable time slot . 62
Table 51 – The state table of C2 master for configurable time slot . 71
Table 52 – The state table of slave for configurable time slot . 73
Table 53 – The list of functions used by cyclic transmission machine . 75
Table 54 – The state table of message initiator for basic format . 77

Table 55 – The state table of message responder for basic format . 81
Table 56 – The state table of message initiator for short format . 85
Table 57 – The state table of message responder for short format . 89
Table 58 – List of functions used by the message segmentation machine . 93
Table 59 – The state table of acyclic transmission protocol machine . 94
Table 60 – The list of functions used acyclic transmission protocol machine . 95
Table 61 – Primitives and parameters exchanged between CTC and DLM . 96
Table 62 – Error event primitive and parameters . 96
Table 63 – primitives and parameters for SRC-CTC interface . 97
Table 64 – Send frame primitive and parameters . 97
Table 65 – Receive frame primitives and parameters . 97
Table 66 – Primitives and parameters exchanged between SRC and DLM . 102

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IEC 61158-4-24:2014 © IEC 2014 – 5 –


Table 67 – Get value primitive and parameters . 103

Table 68 – Error event primitive and parameters . 103


Table 69 – The list of primitives and parameters (DLMS-user source) . 103

Table 70 – The list of primitives and parameters (DLM source) . 104

Table 71 – State table of C1-Master DLM . 105


Table 72 – State table of Slave and C2 master DLM . 110

Table 73 – The list of the functions used by DLM protocol machine . 113

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INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________



INDUSTRIAL COMMUNICATION NETWORKS –

FIELDBUS SPECIFICATIONS –



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

Type 24 elements





FOREWORD
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6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
Attention is drawn to the fact that the use of the associated protocol type is restricted by its
intellectual-property-right holders. In all cases, the commitment to limited release of
intellectual-property-rights made by the holders of those rights permits a layer protocol type to
be used with other layer protocols of the same type, or in other type combinations explicitly
authorized by its intellectual-property-right holders.
NOTE Combinations of protocol types are specified in IEC 61784-1 and IEC 61784-2.
International Standard IEC 61158-4-24 has been prepared by subcommittee 65C: Industrial
networks, of IEC technical committee 65: Industrial-process measurement, control and
automation.

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IEC 61158-4-24:2014 © IEC 2014 – 7 –


The text of this standard is based on the following documents:


FDIS Report on voting


65C/762/FDIS 65C/772/RVD



Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.


This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.


A list of all parts of the IEC 61158 series, published 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 publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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INTRODUCTION


This part of IEC 61158 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.


The data-link protocol provides the data-link service by making use of the services available

from the physical layer. The primary aim of this standard is to provide a set of rules for

communication expressed in terms of the procedures to be carried out by peer data-link

entities (DLEs) at the time of communication. These rules for communication are intended to

provide a sound basis for development in order to serve a variety of purposes:

a) as a guide for implementors and designers;
b) for use in the testing and procurement of equipment;
c) as part of an agreement for the admittance of systems into the open systems environment;
d) as a refinement to the understanding of time-critical communications within OSI.
This standard is concerned, in particular, with the communication and interworking of sensors,
effectors and other automation devices. By using this standard together with other standards
positioned within the OSI or fieldbus reference models, otherwise incompatible systems may
work together in any combination.
NOTE Use of some of the associated protocol types is
...