IEC 61158-1:2014

IEC 61158-1


®


Edition 1.0 2014-05



INTERNATIONAL



STANDARD



NORME
INTERNATIONALE
colour
inside


Industrial communication networks – Fieldbus specifications –
Part 1: Overview and guidance for the IEC 61158 and IEC 61784 series

Réseaux de communication industriels – Spécifications des bus de terrain –
Partie 1: Présentation et lignes directrices des séries CEI 61158 et CEI 61784


IEC 61158-1:2014-05(en-fr)

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IEC 61158-1



®



Edition 1.0 2014-05







INTERNATIONAL





STANDARD







NORME



INTERNATIONALE
colour

inside










Industrial communication networks – Fieldbus specifications –

Part 1: Overview and guidance for the IEC 61158 and IEC 61784 series




Réseaux de communication industriels – Spécifications des bus de terrain –

Partie 1: Présentation et lignes directrices des séries CEI 61158 et CEI 61784

















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX XC


ICS 25.040.40; 33.040; 35.100.05 ISBN 978-2-8322-1630-9



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 61158-1:2014 © IEC 2014


CONTENTS




FOREWORD . 4

1 Scope . 6


2 Normative references . 6

3 Terms, definitions and abbreviated terms . 6

3.1 Terms and definitions . 6

3.2 Abbreviations . 7


Guidelines for implementers and users . 7
4
4.1 Background and purpose . 7
4.2 Supported options . 8
4.3 Benefits from using a common and formal style . 8
Concept of the IEC 61158 series . 9
5
6 Mapping onto the OSI Basic Reference Model . 11
6.1 Overview . 11
6.2 Physical layer service and protocol. 11
6.3 Data-link layer service . 12
6.4 Data-link layer protocol . 13
6.5 Application layer service . 13
6.6 Application layer protocol . 14
Structure of IEC 61158 and IEC 61784 series . 15
7
7.1 The IEC 61158 physical layer . 15
7.2 The IEC 61158 data-link layer . 15
7.3 The IEC 61158 application layer . 16
7.4 IEC 61784-1 and IEC 61784-2 fieldbus profiles . 16
7.5 IEC 61784-3 functional safety communication profiles . 20
7.6 IEC 61784-5 installation profiles . 22
7.7 Communication profiles for wireless communication networks . 24
8 Brief summary of the characteristics of service and protocol for each fieldbus type . 25
8.1 Summary of the physical layer service and protocol characteristics . 25
8.2 Summary of data-link layer service characteristics . 27
8.3 Summary of data-link layer protocol characteristics . 29
8.4 Summary of application layer service characteristics . 30

8.5 Summary of application layer protocol characteristics . 32
9 Application layer service description concepts . 34
9.1 Overview . 34
9.2 Architectural relationships . 34
9.3 Fieldbus application layer structure . 36
9.4 Fieldbus application layer naming and addressing . 48
9.5 Architecture summary . 49
9.6 Notional FAL service procedures . 50
9.7 Common FAL attributes . 51
9.8 Common FAL service parameters . 52
9.9 APDU size . 53
10 Data type ASE . 53
10.1 Overview . 53
10.2 Formal definition of data type objects . 55

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IEC 61158-1:2014 © IEC 2014 – 3 –


11 Fieldbus system requirements . 57

11.1 General . 57


11.2 Industrial control network . 57

11.3 Communication between industrial control networks and other networks . 58

11.4 Quality of service features of an industrial control network . 58

11.5 Special requirements for wireless networks . 59

Annex A (informative) Trade name declarations . 60

Annex B (informative) Media selection for fieldbus systems . 62


B.1 General . 62

B.2 Cabled media . 62
B.3 Wireless media . 62
B.4 Media needing special consideration . 62
B.5 Performance characteristics of open and public networks . 63
Bibliography . 64

Figure 1 – Example of a fieldbus system . 9
Figure 2 – Concept of DL/AL to separate service and protocol parts . 10
Figure 3 – Basic fieldbus reference model . 11
Figure 4 – General model of physical layer . 12
Figure 5 – Relationship of the Data-link layer to other fieldbus layers and to users of
the fieldbus data-link service . 13
Figure 6 – Relationship of the fieldbus Application layer to other fieldbus layers and to
users of the fieldbus application service . 14
Figure 7 – Structure of communication profile families . 17
Figure 8 – Example of a CPF structure . 18
Figure 9 – Document structure of IEC 61918 and the CPF specific part of IEC 61784-5 . 24
Figure 10 – Relationship to the OSI Basic Reference Model . 35
Figure 11 – Architectural positioning of the fieldbus application layer . 35
Figure 12 – Client/server interactions . 38
Figure 13 – Pull model interactions . 39
Figure 14 – Push model interactions . 39
Figure 15 – APOs services conveyed by the FAL . 41
Figure 16 – Application entity structure . 43

Figure 17 – Example FAL ASEs . 44
Figure 18 – FAL management of objects . 45
Figure 19 – ASE service conveyance . 46
Figure 20 – Defined and established AREPs . 48
Figure 21 – FAL architectural components . 50
Figure 22 – Data-type class hierarchy example . 53

Table 1 – OSI and IEC 61158 layers . 11
Table 2 – CPF, CP, and type relations . 19
Table 3 – Types of timeliness defined for publisher/subscriber interactions . 40
Table A.1 – Trade names of CPFs and CPs . 60

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INTERNATIONAL ELECTROTECHNICAL COMMISSION


____________




INDUSTRIAL COMMUNICATION NETWORKS –

FIELDBUS SPECIFICATIONS –



Part 1: Overview and guidance for the IEC 61158 and IEC 61784 series



FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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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
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other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
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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.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

Attention is drawn to the fact that the use of some of the associated protocol types is
restricted by their 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 their respective intellectual property right holders.
NOTE Combinations of protocol types are specified in IEC 61784-1 and IEC 61784-2.
International Standard IEC 61158-1 has been prepared by subcommittee 65C: Industrial
networks, of IEC technical committee 65: Industrial-process measurement, control and
automation.
This first edition cancels and replaces the third edition of IEC/TR 61158-1 published in 2010.
This edition constitutes a technical revision.

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IEC 61158-1:2014 © IEC 2014 – 5 –


This first edition includes the following significant changes with respect to the previous

Technical Report:


• updates of the references to and information about the IEC 61158 series, IEC 61784-1,

IEC 61784-3, IEC 61784-5 series and IEC 61918 throughout the document;

• new Type 23 for profile family 8;

• new Type 24 and the related profile family CPF 19;


• new Subclause 7.7 Communication profiles for wireless communication networks;

• new Clause 11 Fieldbus system requirements;

• new Annex B Media selection for fieldbus systems.
The text of this standard is based on the following documents:
FDIS Report on voting
65C/757/FDIS 65C/767/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 the 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.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a

colour printer.

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INDUSTRIAL COMMUNICATION NETWORKS –

FIELDBUS SPECIFICATIONS –



Part 1: Overview and guidance for the IEC 61158 and IEC 61784 series








1 Scope


This document specifies the generic concept of fieldbuses.
This document also presents an overview and guidance for the IEC 61158 series by:
• explaining the structure and content of the IEC 61158 series;
• relating the structure of the IEC 61158 series to the ISO/IEC 7498-1 OSI Basic Reference
Model;
• showing the logical structure of the IEC 61784 series;
• showing how to use parts of the IEC 61158 series in combination with the IEC 61784
series;
• providing explanations of some aspects of the IEC 61158 series that are common to the
type specific parts of the IEC 61158-5 including the application layer service description
concepts and the generic fieldbus data types.
2 Normative references
None.
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
communication system
arrangement of hardware, software and propagation media to allow the transfer of messages
from one application to another

3.1.2
fieldbus
communication system based on serial data transfer as typically used in industrial automation
and process control applications
3.1.3
fieldbus system
system using a fieldbus with connected devices
3.1.4
message
ordered series of octets intended to convey information
[SOURCE: ISO/IEC 2382-16:1996, 16.02.01, modified]

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IEC 61158-1:2014 © IEC 2014 – 7 –


3.1.5

network

all of the media, connectors, repeaters, routers, gateways and associated node

communication elements by which a given set of communicating devices are interconnected


3.2 Abbreviations


For the purposes of this document, the following abbreviations, based partially on the

concepts developed in ISO/IEC 7498-1, apply:

AE application entity


AL application layer (N = 7)
APDU application layer protocol data unit
APO application process object
AR application relationship
AREP application relationship endpoint
ASE application service element
CP communication profile
CPF communication profile family
DL- data-link layer (as a prefix)
DLL data-link layer (N = 2)
FAL fieldbus application layer
FSCP functional safety communication profile
IETF Internet Engineering Task Force
IO input output
IP Internet protocol (see RFC 791)
kbit/s thousand bit per second
Mbit/s million bit per second
LME layer management entity
(n)-layer layer n of the OSI basic reference model
OSI open systems interconnection
Ph- physical layer (as a prefix)
PhL physical layer (N = 1)
SIL safety integrity level

4 Guidelines for implementers and users
4.1 Background and purpose
Communication in global markets requires a global understanding of a specification (standard
or not). ISO/OSI related specifications provide a common basis for understanding and
acceptance between international experts (manufacturers and end-users).
Examples are
• ISO/IEC 7498-1 for general layering and structuring;
• ISO/IEC 9545 for general application layer modeling;
• ISO/IEC 8886 for data-link layer modeling.

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The IEC 61158 series specifies a number of different fieldbus types in each of its parts

(IEC 61158-2 and the type specific parts of IEC 61158-3-tt, IEC 61158-4-tt, IEC 61158-5-tt

and IEC 61158-6-tt). As a result of the editorial harmonization work done by IEC, each PhL,

DLL and AL specification within IEC 61158 is shown in a homogeneous way. The description

of each layer offers, as far as possible, common views, concepts, definitions, and descriptive

methods.


NOTE The list of IEC 61158 parts is abbreviated as IEC 61158-3-tt, IEC 61158-4-tt, IEC 61158-5-tt, or
IEC 61158-6-tt, where tt represents one or more type numbers.


This common approach has been adopted to assist users and implementers in understanding

the several specifications. It is also intended to assist in comparing available products and

their communications-related features.
4.2 Supported options
Most of the fieldbus types specified in the IEC 61158 series include a range of selectable and
configurable options within their detailed specifications. In general, only certain restricted
combinations of options will interwork or interoperate correctly.
The recommended combinations of options are collected in IEC 61784-1 and IEC 61784-2.
IEC 61784-1 and IEC 61784-2 provide users and implementers with details of supported
fieldbus specifications based on selected options that are intended to work together
consistently and correctly. In most cases, available product demonstrations and working plant
experience support these profiles.
Annex A of IEC 61784-1 and Annex A of IEC 61784-2 help select the needed fieldbus by
showing the key features of each of the profiled fieldbus protocol families.
As a result, the route map recommended to select a fieldbus is:
• Clause 5 to Clause 8 of this part of IEC 61158;
• IEC 61784-1, Annex A: Communication concepts;
• IEC 61784-2, Annex A: Performance indicator calculations;
• IEC 61784-1 and IEC 61784-2, Communication profile family;
• the parts of IEC 61158 as referenced in IEC 61784-1 and IEC 61784-2 for the selected
communication profile of interest.
4.3 Benefits from using a common and formal style

The benefits gained from using a common and formal style to specify the communication
system are:
• the common look and feel of a specification saves effort during evaluation;
• a common structure helps to identify and to specify common parts and contents;
• the common approach represents a first step to ensure long-term quality and stability;
• the missing parts and items of any specification are more readily identified by comparison
with the other specifications, leading to a simplified review and evaluation p
...