EN IEC 61158-6-4:2023

Industrial communication networks - Fieldbus specifications - Part 6-4: Application layer protocol specification - Type 4 elements

IEC 61158-6-4:2023 provides common elements for basic time-critical and non-time-critical messaging communications between application programs in an automation environment and material specific to Type 4 fieldbus. 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.

Industrielle Kommunikationsnetze - Feldbusse - Teil 6-4: Protokollspezifikation des Application Layer (Anwendungsschicht) - Typ 4-Elemente

Réseaux de communication industriels - Spécifications des bus de terrain - Partie 6-4: Spécification du protocole de la couche application – Éléments de type 4

L'IEC 61158-6-4:2023 fournit des éléments communs pour les communications de messagerie prioritaires et non prioritaires élémentaires entre les programmes d’application des environnements d’automatisation et le matériel spécifique au bus de terrain de type 4. Le terme "à temps critique" 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.

Industrijska komunikacijska omrežja - Specifikacije za procesna vodila - 6-4. del: Specifikacija protokola na aplikacijski ravni - Elementi tipa 4 (IEC 61158-6-4:2023)

Aplikacijska raven procesnih vodil (FAL) uporabniškim programom omogoča dostop do komunikacijskega okolja procesnih vodil. Glede na to je mogoče aplikacijsko raven procesnih vodil šteti za »okno med ustreznimi aplikacijami«.
Ta del standarda IEC 61158 določa skupne elemente za osnovne časovno kritične in časovno nekritične sporočilne komunikacije med aplikacijami v avtomatizacijskem okolju ter material, specifičen za procesna vodila tipa 4. Izraz »časovno kritičen« se uporablja za predstavitev prisotnosti časovnega okna, v okviru katerega se zahteva dokončanje enega ali več opredeljenih dejanj z določeno stopnjo gotovosti. Zaradi neuspešnega dokončanja opredeljenih dejanj v časovnem oknu je možna odpoved aplikacij, ki zahtevajo dejanja, pri čemer so ogroženi oprema, obrat in morda človeška življenja.
Ta dokument opredeljuje interakcije med oddaljenimi aplikacijami in določa na zunaj vidno vedenje, ki ga zagotavlja aplikacijska raven procesnih vodil tipa 4 v smislu:
– formalne abstraktne sintakse, ki določa podatkovne enote protokola aplikacijske ravni, ki se prenašajo med aplikacijskimi osebki, ki komunicirajo;
– prenosne sintakse, ki opredeljuje pravila kodiranja, ki se uporabljajo za podatkovne enote protokola aplikacijske ravni;
– stroja stanja aplikacijskega konteksta, ki opredeljuje vedenje aplikacijskega opravila, vidnega med aplikacijskimi osebki, ki komunicirajo;
– strojev stanja aplikacijskega razmerja, ki opredeljujejo komunikacijsko vedenje med aplikacijskimi osebki, ki komunicirajo.
Namen tega dokumenta je opredeliti protokol, ki se zagotavlja za:
– določitev žične predstavitve primitivov opravil iz standarda IEC 61158-5-4, in
– določitev na zunaj vidnega vedenja, povezanega z njihovim prenosom.
Ta dokument določa protokol aplikacijske ravni procesnih vodil tipa 4 v skladu z osnovnim referenčnim modelom OSI (ISO/IEC 7498-1) in strukturo aplikacijske ravni OSI (ISO/IEC 9545).

General Information

• Status: Published
• Publication Date: 04-May-2023
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.100.70 - Application layer
• ICS: 35.110 - Networking
• Technical Committee: CLC/TC 65X - Industrial-process measurement, control and automation
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 05-May-2023
• Completion Date: 05-May-2023
• Ref Project: SIST EN IEC 61158-6-4:2023 - Industrial communication networks - Fieldbus specifications - Part 6-4: Application layer protocol specification - Type 4 elements (IEC 61158-6-4:2023)

Relations

• Replaces: EN IEC 61158-6-4:2019 - Industrial communication networks - Fieldbus specifications - Part 6-4: Application layer protocol specification - Type 4 elements
• Effective Date: 04-Apr-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2023
Nadomešča:
SIST EN IEC 61158-6-4:2019
Industrijska komunikacijska omrežja - Specifikacije za procesna vodila - 6-4. del:
Specifikacija protokola na aplikacijski ravni - Elementi tipa 4 (IEC 61158-6-4:2023)
Industrial communication networks - Fieldbus specifications - Part 6-4: Application layer
protocol specification - Type 4 elements (IEC 61158-6-4:2023)
Industrielle Kommunikationsnetze - Feldbusse - Teil 6-4: Protokollspezifikation des
Application Layer (Anwendungsschicht) - Typ 4-Elemente (IEC 61158-6-4:2023)
Réseaux de communication industriels - Spécifications des bus de terrain - Partie 6-4:
Spécification du protocole de la couche liaison de données - Eléments de type 4 (IEC
61158-6-4:2023)
Ta slovenski standard je istoveten z: EN IEC 61158-6-4:2023
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.70 Uporabniški sloj Application layer
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61158-6-4

NORME EUROPÉENNE
EUROPÄISCHE NORM May 2023
ICS 25.040.40; 35.100.70; 35.110 Supersedes EN IEC 61158-6-4:2019
English Version
Industrial communication networks - Fieldbus specifications -
Part 6-4: Application layer protocol specification - Type 4
elements
(IEC 61158-6-4:2023)
Réseaux de communication industriels - Spécifications des Industrielle Kommunikationsnetze - Feldbusse - Teil 6-4:
bus de terrain - Partie 6-4: Spécification du protocole de la Protokollspezifikation des Application Layer
couche liaison de données - Eléments de type 4 (Anwendungsschicht) - Typ 4-Elemente
(IEC 61158-6-4:2023) (IEC 61158-6-4:2023)
This European Standard was approved by CENELEC on 2023-04-28. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61158-6-4:2023 E

European foreword
The text of document 65C/1204/FDIS, future edition 4 of IEC 61158-6-4, prepared by SC 65C
"Industrial networks" of IEC/TC 65 "Industrial-process measurement, control and automation" was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61158-6-4:2023.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-01-28
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-04-28
document have to be withdrawn
This document supersedes EN IEC 61158-6-4:2019 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61158-6-4:2023 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 61158-1 NOTE Approved as EN IEC 61158-1
IEC 61784-1 (series) NOTE Approved as EN IEC 61784-1 (series)
IEC 61784-2 (series) NOTE Approved as EN IEC 61784-2 (series)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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 1  Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 61158-3-4 2023 Industrial communication networks - Fieldbus - -
specifications - Part 3-4: Data-link layer service
definition - Type 4 elements
IEC 61158-4-4 2023 Industrial communication networks - Fieldbus - -
specifications - Part 4-4: Data-link layer protocol
specification - Type 4 elements
IEC 61158-5-4 2023 Industrial communication networks - Fieldbus - -
specifications - Part 5-4: Application layer
service definition - Type 4 elements
IEC 61158-6-1 - Industrial communication networks - Fieldbus - -
specifications - Part 6-1: Application layer
protocol specification - Type 1 elements
ISO/IEC 7498-1 - Information technology - Open Systems - -
Interconnection - Basic reference model: The
basic model
ISO/IEC 8822 - Information technology - Open Systems - -
Interconnection - Presentation service definition
ISO/IEC 8824-1 - Information technology - Abstract Syntax - -
Notation One (ASN.1) - Part 1: Specification of
basic notation
ISO/IEC 9545 - Information technology - Open Systems - -
Interconnection - Application layer structure
ISO/IEC 9797-1 - Information technology - Security techniques - - -
Message Authentication Codes (MACs) -
Part 1: Mechanisms using a block cipher
ISO/IEC 10731 - Information technology - Open Systems - -
Interconnection - Basic Reference Model -
Conventions for the definition of OSI services

IEC 61158-6-4 ®
Edition 4.0 2023-03
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 6-4: Application layer protocol specification – Type 4 elements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.70; 35.110 ISBN 978-2-8322-6632-8
– 2 – IEC 61158-6-4:2023 © IEC 2023
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
1.1 General . 8
1.2 Specifications . 8
1.3 Conformance . 9
2 Normative references . 9
3 Terms, definitions, symbols, abbreviated terms and conventions . 10
3.1 Referenced terms and definitions . 10
3.1.1 ISO/IEC 7498-1 terms . 10
3.1.2 ISO/IEC 8822 terms . 10
3.1.3 ISO/IEC 9545 terms . 10
3.1.4 ISO/IEC 8824-1 terms . 10
3.1.5 Fieldbus data-link layer terms . 11
3.2 Abbreviations and symbols . 11
3.3 Conventions . 12
3.3.1 General concept . 12
3.3.2 Conventions for state machines for Type 4 . 12
4 FAL syntax description . 13
4.1 FAL-AR PDU abstract syntax . 13
4.1.1 General . 13
4.1.2 Abstract syntax of APDU header . 13
4.1.3 Abstract syntax of APDU body . 15
4.2 Data types . 16
5 Transfer syntaxes . 16
5.1 APDU encoding . 16
5.1.1 APDU Header encoding . 16
5.1.2 APDU body encoding . 18
5.2 Variable object encoding and packing . 20
5.2.1 Encoding of simple variables . 20
5.2.2 Encoding of constructed variables . 21
5.2.3 Alignment . 22
5.2.4 Variable object attributes . 24
5.3 Error codes . 25
6 FAL protocol state machines . 26
7 AP-context state machine . 27
8 FAL service protocol machine (FSPM) . 27
8.1 Primitives exchanged between FAL User and FSPM . 27
8.2 FSPM states . 27
8.2.1 General . 27
8.2.2 FSPM proxy object states . 27
8.2.3 FSPM real object state machine description . 32
9 Application relationship protocol machine (ARPM) . 34
9.1 Primitives exchanged between ARPM and FSPM . 34
9.2 ARPM States . 35
9.2.1 General . 35

IEC 61158-6-4:2023 © IEC 2023 – 3 –
9.2.2 Sender state transitions . 35
9.2.3 Receiver state transitions . 36
10 DLL mapping protocol machine (DMPM) . 37
10.1 Data-link Layer service selection. 37
10.1.1 General . 37
10.1.2 DL-UNITDATA request . 37
10.1.3 DL-UNITDATA indication . 37
10.1.4 DL-UNITDATA response . 37
10.1.5 DLM-Set primitive and parameters . 37
10.1.6 DLM-Get primitive and parameters . 37
10.2 Primitives ex
...