IEC 61158-3-25:2019

Industrial communication networks - Fieldbus specifications - Part 3-25: Data-link layer service definition - Type X elements

IEC 61158-3-25:2019

Name:IEC 61158-3-25:2019   Standard name:Industrial communication networks - Fieldbus specifications - Part 3-25: Data-link layer service definition - Type X elements
Standard number:IEC 61158-3-25:2019   language:English language
Release Date:09-Apr-2019   technical committee:SC 65C - Industrial networks
Drafting committee:WG 9 - TC 65/SC 65C/WG 9   ICS number:25.040.40 - Industrial process measurement and control

IEC 61158-3-25
Edition 1.0 2019-04
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 3-25: Data-link layer service definition – Type 25 elements





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IEC 61158-3-25
Edition 1.0 2019-04
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –

Part 3-25: Data-link layer service definition – Type 25 elements

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.20; 35.110 ISBN 978-2-8322-6791-2

– 2 – IEC 61158-3-25:2019 © IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
1.1 General . 7
1.2 Specifications . 7
1.3 Conformance . 7
2 Normative references . 8
3 Terms, definitions, symbols, abbreviations and conventions . 8
3.1 Reference model terms and definitions . 8
3.2 Service convention terms and definitions . 10
3.3 Terms and definitions . 10
3.4 Symbols and abbreviations . 12
3.5 Common conventions . 13
3.6 Additional Type 25 conventions. 15
4 DL services and concepts . 15
4.1 Overview. 15
4.2 Types of DLS . 15
4.2.1 General . 15
4.2.2 Primitive of the RCL communication and RT communication . 15
4.3 Detailed description of the RCL communication service . 16
4.3.1 Sequence of primitives . 16
4.3.2 Transmit / Receive DLSDU . 16
4.4 Detailed description of the RT communication service. 18
4.4.1 Sequence of primitives . 18
4.4.2 Transmit / Receive DLSDU . 18
5 DL management services . 19
5.1 General . 19
5.2 Facilities of the DLMS . 19
5.3 Service of the DL-management . 19
5.3.1 Overview . 19
5.3.2 RCL stop . 19
5.3.3 RCL start . 20
5.3.4 Node status . 20
5.4 Overview of interactions . 20
5.5 Detail specification of service and interactions . 20
5.5.1 RCL stop . 20
5.5.2 RCL start . 21
Bibliography . 23

Figure 1 – Relationships of DLSAPs, DLSAP-addresses and group DL-addresses . 14
Figure 2 – Sequence diagram of RCL communication and RT communication services . 16
Figure 3 – Sequence diagram of DL-management services . 20

Table 1 – Primitives and parameters used on the RCL communication service . 16
Table 2 – Transmit DLSDU primitives and parameters . 17

Table 3 – Primitives and parameters used on the RT communication service . 18
Table 4 – Transmit DLSDU primitives and parameters . 18
Table 5 – Transmit DLSDU primitives and parameters . 20
Table 6 – DLM_RCL_STOP primitives and parameters . 21
Table 7 – DLM_RCL_START primitives and parameters . 21
Table 8 – DLM_RCL_START primitives and parameters . 22

– 4 – IEC 61158-3-25:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
FIELDBUS SPECIFICATIONS –
Part 3-25: Data-link layer service definition –
Type 25 elements
FOREWORD
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International Standard IEC 61158-3-25 has been prepared by subcommittee 65C: Industrial
networks, of IEC technical committee 65: Industrial-process measurement, control and
automation.
The text of this International Standard is based on the following documents:
FDIS Report on voting
65C/945/FDIS 65C/954/RVD
Full information on the voting for the approval of this International 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 in the IEC 61158 series, published under the general title Industrial
communication networks – Fieldbus specifications, can be found on the IEC website.
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.
A bilingual version of this publication may be issued at a later date.

– 6 – IEC 61158-3-25:2019 © IEC 2019
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.

INDUSTRIAL COMMUNICATION NETWORKS –
FIELDBUS SPECIFICATIONS –
Part 3-25: Data-link layer service definit
...

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