SIST EN IEC 61158-6-2:2019
(Main)Industrial communication networks - Fieldbus specifications - Part 6-2: Application layer protocol specification - Type 2 elements (IEC 61158-6-2:2019)
Industrial communication networks - Fieldbus specifications - Part 6-2: Application layer protocol specification - Type 2 elements (IEC 61158-6-2:2019)
The Fieldbus Application Layer (FAL) provides user programs with a means to access the fieldbus communication environment. In this respect, the FAL can be viewed as a “window between corresponding application programs.” IEC 61158-6-2 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 2 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. This International Standard specifies interactions between remote applications and defines the externally visible behavior provided by the Type 2 fieldbus application layer in terms of a) the formal abstract syntax defining the application layer protocol data units conveyed between communicating application entities; b) the transfer syntax defining encoding rules that are applied to the application layer protocol data units; c) the application context state machine defining the application service behavior visible between communicating application entities; d) the application relationship state machines defining the communication behavior visible between communicating application entities. The purpose of this document is to define the protocol provided to a) define the wire-representation of the service primitives defined in IEC 61158-5-2, and b) define the externally visible behavior associated with their transfer. This document specifies the protocol of the Type 2 fieldbus application layer, in conformance with the OSI Basic Reference Model (ISO/IEC 7498-1) and the OSI application layer structure (ISO/IEC 9545).
Industrielle Kommunikationsnetze - Feldbusse - Teil 6-2: Protokollspezifikation des Application Layer (Anwendungsschicht) - Typ 2-Elemente (IEC 61158-6-2:2019)
Réseaux de communication industriels - Spécifications des bus de terrain - Partie 6-2: Spécification du protocole de la couche application - Éléments de type 2 (IEC 61158-6-2:2019)
L’IEC 61158-6-2:2019 fournit des éléments communs pour les communications à temps critique ou non entre des programmes d'application dans un environnement et avec un matériel d'automation spécifiques aux bus de terrain de type 2. Le terme "à temps critique" signale l'existence d'une fenêtre temporelle dans laquelle est exigée la réalisation d'une ou de plusieurs actions spécifiées, avec un niveau de certitude défini. La non-réalisation des actions spécifiées dans la fenêtre temporelle induit un risque de défaillance des applications qui demandent ces actions, avec les risques relatifs à l'équipement, les installations et éventuellement la vie humaine.
Le présent document spécifie les interactions entre les applications distantes et définit le comportement, visible par un observateur externe, assuré par la couche application de bus de terrain de type 2, en termes
a) de syntaxe abstraite formelle définissant les unités de données de protocole de couche application, acheminées entre les entités d'application en communication;
b) de syntaxe de transfert définissant les règles de codage qui s'appliquent aux unités de données de protocole de couche application;
c) du diagramme d'états de contexte application définissant le comportement de service application visible entre des entités d'application engagées dans une communication;
d) de diagrammes d'états de relations d'applications définissant le comportement de communication visible entre les entités d'application en communication.
Industrijska komunikacijska omrežja - Specifikacije za procesna vodila - 6-2. del: Specifikacija protokola na aplikacijski ravni - Elementi tipa 2 (IEC 61158-6-2:2019)
Aplikacijski nivo procesnih vodil (FAL) uporabniškim programom omogoča dostop do komunikacijskega okolja procesnih vodil. Glede na to je mogoče aplikacijski nivo procesnih vodil šteti za »okno med ustreznimi aplikacijami«. Standard IEC 61158-6-2 določa skupne elemente za osnovne časovno kritične in časovno nekritične sporočilne komunikacije med aplikacijami v avtomatizacijskem okolju ter material, specifičen za procesna vodila tipa 2. 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 mednarodni standard opredeljuje interakcije med oddaljenimi aplikacijami in določa zunanje vidno vedenje, ki ga zagotavlja aplikacijski nivo procesnih vodil tipa 2 v zvezi s/z: a) formalno abstraktno sintakso, ki opredeljuje podatkovne enote protokola aplikacijskega nivoja, ki se prenašajo med aplikacijskimi osebki, ki komunicirajo, b) prenosno sintakso, ki opredeljuje pravila kodiranja, ki se uporabljajo za podatkovne enote protokola aplikacijskega nivoja, c) strojem stanj aplikacijskega konteksta, ki opredeljuje vedenje aplikacijskega opravila, vidnega med aplikacijskimi osebki, ki komunicirajo, in d) stroji stanj aplikacijskega razmerja, ki opredeljujejo komunikacijsko vedenje med aplikacijskimi osebki, ki komunicirajo. Namen tega standarda je opredeliti protokol za: a) določitev žične predstavitve primitivov opravil iz standarda IEC 61158-5-2 in b) določitev zunanje vidnega vedenja, povezanega z njihovim prenosom. Ta dokument določa protokol aplikacijskega nivoja procesnih vodil tipa 2 v skladu z osnovnim referenčnim modelom OSI (ISO/IEC 7498-1) in strukturo aplikacijskega nivoja OSI (ISO/IEC 9545).
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN IEC 61158-6-2:2019
01-november-2019
Nadomešča:
SIST EN 61158-6-2:2015
Industrijska komunikacijska omrežja - Specifikacije za procesna vodila - 6-2. del:
Specifikacija protokola na aplikacijski ravni - Elementi tipa 2 (IEC 61158-6-2:2019)
Industrial communication networks - Fieldbus specifications - Part 6-2: Application layer
protocol specification - Type 2 elements (IEC 61158-6-2:2019)
Industrielle Kommunikationsnetze - Feldbusse - Teil 6-2: Protokollspezifikation des
Application Layer (Anwendungsschicht) - Typ 2-Elemente (IEC 61158-6-2:2019)
Réseaux de communication industriels - Spécifications des bus de terrain - Partie 6-2:
Spécification du protocole de la couche application - Éléments de type 2 (IEC 61158-6-
2:2019)
Ta slovenski standard je istoveten z: EN IEC 61158-6-2:2019
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
SIST EN IEC 61158-6-2:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN IEC 61158-6-2:2019
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SIST EN IEC 61158-6-2:2019
EUROPEAN STANDARD EN IEC 61158-6-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2019
ICS 25.040.40; 35.100.70; 35.110 Supersedes EN 61158-6-2:2014 and all of its
amendments and corrigenda (if any)
English Version
Industrial communication networks - Fieldbus specifications -
Part 6-2: Application layer protocol specification - Type 2
elements
(IEC 61158-6-2:2019)
Réseaux de communication industriels - Spécifications des Industrielle Kommunikationsnetze - Feldbusse - Teil 6-2:
bus de terrain - Partie 6-2: Spécification du protocole de la Protokollspezifikation des Application Layer
couche application - Éléments de type 2 (Anwendungsschicht) - Typ 2-Elemente
(IEC 61158-6-2:2019) (IEC 61158-6-2:2019)
This European Standard was approved by CENELEC on 2019-07-25. 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,
Turkey 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
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61158-6-2:2019 E
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SIST EN IEC 61158-6-2:2019
EN IEC 61158-6-2:2019 (E)
European foreword
The text of document 65C/948/FDIS, future edition 4 of IEC 61158-6-2, 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 61158-6-2:2019.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-04-25
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-07-25
document have to be withdrawn
This document supersedes EN 61158-6-2:2014 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.
Endorsement notice
The text of the International Standard IEC 61158-6-2:2019 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 standards
indicated:
IEC 61131-3 NOTE Harmonized as EN 61131-3
IEC 61784-1:2019 NOTE Harmonized as EN IEC 61784-1:2019 (not modified)
IEC 61784-2:2019 NOTE Harmonized as EN IEC 61784-2:2019 (not modified)
2
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SIST EN IEC 61158-6-2:2019
EN IEC 61158-6-2:2019 (E)
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.cenelec.eu.
Publication Year Title EN/HD Year
IEC 61158-1 2019 Industrial communication networks - EN IEC 61158-1 2019
Fieldbus specifications - Part 1: Overview
and guidance for the IEC 61158 and IEC
61784 series
IEC 61158-3-2 2014 Industrial communication networks - EN 61158-3-2 2014
Fieldbus specifications - Part 3-2: Data-
lonk layer service definition - Type 2
elements
IEC 61158-3-2019 + A1 2019
2:2014/Amd 1
IEC 61158-4-2 2019 Industrial communication networks - EN IEC 61158-4-2 2019
Fieldbus specifications - Part 4-2: Data-link
layer protocol specification - Type 2
elements
IEC 61158-5-2 2019 Industrial communication networks - EN IEC 61158-5-2 2019
Fieldbus specifications - Part 5-2:
Application layer service definition - Type 2
elements
IEC 61588 2009 Precision clock synchronization protocol for - -
networked measurement and control
systems
IEC 61784-3-2 - Industrial communication networks - - -
Profiles - Part 3-2: Functional safety
fieldbuses - Additional specifications for
CPF 2
IEC 61800-7-202 - Adjustable speed electrical power drive EN 61800-7-202 -
systems - Part 7-202: Generic interface
and use of profiles for power drive systems
- Profile type 2 specification
IEC 62026-3 2014 Low-voltage switchgear and controlgear - - -
Controller-device interfaces (CDIs) - Part 3:
DeviceNet
ISO 639-2 - Codes for the representation of names of - -
languages - Part-2: Alpha-3 code
ISO 11898 1993 Road vehicles - Interchange of digital - -
information - Controller area network
(CAN) for high-speed communication
3
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EN IEC 61158-6-2:2019 (E)
ISO/IEC 7498-1 - Information technology - Open Systems - -
Interconnection - Basic reference model:
The basic model
ISO/IEC 8824-1 - Information technology - Abstract Syntax - -
Notation One (ASN.1): Specification of
basic notation
ISO/IEC 8825-1 - Information technology - ASN.1 encoding - -
rules: Specification of Basic Encoding
Rules (BER), Canonical Encoding Rules
(CER) and Distinguished Encoding Rules
(DER)
ISO/IEC 9545 - Information technology - Open Systems - -
Interconnection - Application layer
structure
ISO/IEC 10646 - Information technology_- Universal Coded - -
Character Set (UCS)
ISO/IEC 10731 - Information technology - Open Systems - -
Interconnection - Basic Reference Model -
Conventions for the definition of OSI
services
IEEE Std 802.1D 2004 IEEE standard for local and metropolitan
area networks – Media Access Control
(MAC) bridges
IEEE Std 802.1Q 2005 IEEE standard for local and metropolitan
area networks – Virtual bridged local area
networks
IEEE Std 802.3 2015 IEEE Standard for Ethernet - -
IETF RFC 1035 - Domain Names - Implementation and - -
Specification
IETF RFC 1112 - Host Extensions for IP Multicasting - -
IETF RFC 1117 - Internet numbers - -
IETF RFC 1122 - Requirements for Internet Hosts - - -
Communication Layers
IETF RFC 1759 - Printer MIB - -
IETF RFC 2236 - Internet Group Management Protocol, - -
Version 2
IETF RFC 2474 - Definition of the Differentiated Services - -
Field (DS Field) in the IPv4 and IPv6
Headers
IETF RFC 2475 - An Architecture for Differentiated Services - -
IETF RFC 2597 - Assured Forwarding PHB Group - -
IETF RFC 2873 - TCP Processing of the IPv4 Precedence - -
Field
IETF RFC 3140 - Per Hop Behavior Identification Codes - -
IETF RFC 3246 - An Expedited Forwarding PHB (Per-Hop - -
Behavior)
IETF RFC 3376 - Internet Group Management Protocol, - -
Version 3
IETF RFC 4594 - Configuration Guidelines for DiffServ - -
Service Classes
IETF RFC 791 - Internet protocol darpa internet program - -
protocol specification
ISO/IEC/IEEE 8802-- Standard for Ethernet - -
3
4
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SIST EN IEC 61158-6-2:2019
IEC 61158-6-2
®
Edition 4.0 2019-06
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 6-2: Application layer protocol specification – Type 2 elements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.70; 35.110 ISBN 978-2-8322-7007-3
Warning! Make sure that you obtained this publication from an authorized distributor.
® Registered trademark of the International Electrotechnical Commission
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SIST EN IEC 61158-6-2:2019
– 2 – IEC 61158-6-2:2019 © IEC 2019
CONTENTS
FOREWORD . 14
INTRODUCTION . 16
1 Scope . 17
1.1 General . 17
1.2 Specifications . 17
1.3 Conformance . 18
2 Normative references . 18
3 Terms, definitions, symbols, abbreviated terms and conventions . 20
3.1 Terms and definitions from other ISO/IEC standards . 20
3.1.1 Terms and definitions from ISO/IEC 7498-1 . 20
3.1.2 Terms and definitions from ISO/IEC 9545 . 21
3.1.3 Terms and definitions from ISO/IEC 8824-1 . 21
3.1.4 Terms and definitions from ISO/IEC 8825-1 . 22
3.2 Terms and definitions from IEC 61158-5-2 . 22
3.3 Additional terms and definitions . 22
3.4 Abbreviated terms and symbols . 29
3.5 Conventions . 29
3.5.1 General concept . 29
3.5.2 Attribute specification . 30
3.5.3 Common services . 30
3.5.4 State machine conventions . 34
4 Abstract syntax . 35
4.1 FAL PDU abstract syntax . 35
4.1.1 General . 35
4.1.2 PDU structure . 36
4.1.3 UCMM_PDUs . 38
4.1.4 Transport_Headers . 40
4.1.5 CM_PDUs . 43
4.1.6 CM PDU components . 57
4.1.7 MR headers . 66
4.1.8 OM_Service_PDU . 67
4.1.9 Message and connection paths . 122
4.1.10 Class, attribute and service codes . 137
4.1.11 Error codes . 143
4.2 Data abstract syntax specification . 157
4.2.1 Transport format specification . 157
4.2.2 Abstract syntax notation . 157
4.2.3 Control network data specification . 158
4.2.4 Data type specification / dictionaries . 160
4.3 Encapsulation abstract syntax . 162
4.3.1 Encapsulation protocol . 162
4.3.2 Command descriptions . 165
4.3.3 Common packet format . 177
5 Transfer syntax . 181
5.1 Compact encoding . 181
5.1.1 Encoding rules . 181
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5.1.2 Encoding constraints . 182
5.1.3 Examples. 182
5.2 Data type reporting . 188
5.2.1 Object data representation. 188
5.2.2 Elementary data type reporting . 189
5.2.3 Constructed data type reporting . 190
6 Structure of FAL protocol state machines . 196
7 AP-Context state machine . 196
7.1 Overview. 196
7.2 Connection object state machine . 196
7.2.1 I/O Connection instance behavior . 196
7.2.2 Bridged Connection instance behavior . 200
7.2.3 Explicit Messaging Connection instance behavior . 201
8 FAL service protocol machine (FSPM) . 204
8.1 General . 204
8.2 Primitive definitions . 204
8.3 Parameters of primitives . 209
8.4 FSPM state machines . 209
9 Application relationship protocol machines (ARPMs) . 210
9.1 General . 210
9.2 Connection-less ARPM (UCMM) . 210
9.2.1 General . 210
9.2.2 Primitive definitions . 210
9.2.3 Parameters of primitives . 211
9.2.4 UCMM state machines . 212
9.2.5 Examples of UCMM sequences . 217
9.2.6 Management UCMM . 219
9.3 Connection-oriented ARPMs (transports) . 220
9.3.1 Transport PDU buffer . 220
9.3.2 Transport classes . 220
9.3.3 Common primitive definitions . 221
9.3.4 Parameters of common primitives . 222
9.3.5 Transport state machines – class 0 . 222
9.3.6 Transport state machines – class 1 . 226
9.3.7 Transport state machines – class 2 . 231
9.3.8 Transport state machines – class 3 . 239
9.3.9 Transport state machines – classes 4, 5, 6 . 249
9.3.10 Transport state machines – class 4 . 249
9.3.11 Transport state machines – class 5 . 249
9.3.12 Transport state machines – class 6 . 249
10 DLL mapping protocol machine 1 (DMPM 1) . 249
10.1 General . 249
10.2 Link producer . 250
10.3 Link consumer . 250
10.4 Primitive definitions . 250
10.4.1 Primitives exchanged between DMPM and ARPM . 250
10.4.2 Parameters of ARPM/DMPM primitives . 250
10.4.3 Primitives exchanged between data-link layer and DMPM . 251
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10.4.4 Parameters of DMPM/Data-link Layer primitives . 251
10.4.5 Network connection ID . 252
10.5 DMPM state machine . 253
10.5.1 DMPM states . 253
10.5.2 Functions used by DMPM . 254
10.6 Data-link Layer service selection. 254
11 DLL mapping protocol machine 2 (DMPM 2) . 254
11.1 General . 254
11.2 Mapping of UCMM PDUs . 255
11.2.1 General . 255
11.2.2 Common requirements for Connection Manager PDU’s . 256
11.2.3 Forward_open PDU for class 2 and class 3 connections . 258
11.2.4 Forward_open for class 0 and class 1 connections . 258
11.2.5 Forward_close . 262
11.3 Mapping of transport class 0 and class 1 PDUs. 263
11.3.1 Class 0 and class 1 PDUs. 263
11.3.2 No dependency on TCP connections . 263
11.3.3 Class 0 and class 1 packet ordering . 263
11.3.4 Screening incoming connected data . 264
11.4 Mapping of transport class 2 and class 3 PDU’s . 264
11.5 Mapping of transport classes 4 to 6. 265
11.6 IGMP Usage . 265
11.6.1 Background (informative) . 265
11.6.2 IGMP Membership Report messages . 266
11.6.3 IGMP Leave Group messages . 266
11.7 Quality of Service (QoS) for CP 2/2 messages . 267
11.7.1 Overview . 267
11.7.2 DSCP format . 267
11.7.3 IEEE 802.1D/IEEE 802.Q format . 268
11.7.4 Mapping CPF 2 traffic to DSCP and IEEE 802.1D . 268
11.7.5 CP 2/2 usage of DSCP . 269
11.7.6 CP 2/2 usage of IEEE 802.1D/IEEE 802.1Q . 269
11.7.7 User considerations with IEEE 802.1D/IEEE 802.1Q . 269
11.8 Management of an encapsulation session . 270
11.8.1 Phases of an encapsulation session . 270
11.8.2 Establishing a session . 270
11.8.3 Terminating a session . 270
11.8.4 Maintaining a session . 270
11.8.5 TCP connection management . 271
12 DLL mapping protocol machine 3 (DMPM 3) . 271
Bibliography . 272
Figure 1 – Attribute table format and terms . 30
Figure 2 – Service request/response parameter . 30
Figure 3 – Example of an STD . 34
Figure 4 – Network connection parameters . 58
Figure 5 – Priority/Tick_time bit definition . 61
Figure 6 – Member ID/EX description (WORD). 75
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Figure 7 – Transport Class Trigger attribute . 110
Figure 8 – CP2/3_initial_comm_characteristics attribute format . 114
Figure 9 – Segment type . 123
Figure 10 – Port segment . 124
Figure 11 – Logical segment encoding . 126
Figure 12 – Extended network segment . 132
Figure 13 – Symbolic segment encoding . 133
Figure 14 – Encapsulation message . 162
Figure 15 – FixedLengthBitString compact encoding bit placement rules . 185
Figure 16 – Example compact encoding of a SWORD FixedLengthBitString . 186
Figure 17 – Example compact encoding of a WORD FixedLengthBitString . 186
Figure 18 – Example compact encoding of a DWORD FixedLengthBitString . 186
Figure 19 – Example compact encoding of a LWORD FixedLengthBitString . 186
Figure 20 – Example 1 of formal encoding of a structure type specification . 191
Figure 21 – Example 2 of formal encoding of a structure type specification . 191
Figure 22 – Example 3 of formal encoding of a handle structure type specification . 192
Figure 23 – Example 4 of formal encoding of a handle structure type specification . 192
Figure 24 – Example 5 of abbreviated encoding of a structure type specification . 193
Figure 25 – Example 1 of formal encoding of an array type specification. 194
Figure 26 – Example 2 of formal encoding of an array type specification. 194
Figure 27 – Example 1 of abbreviated encoding of an array type specification . 195
Figure 28 – Example 2 of abbreviated encoding of an array type specification . 195
Figure 29 – I/O Connection object state transition diagram . 196
Figure 30 – Bridged Connection object state transition diagram . 200
Figure 31 – Explicit Messaging Connection object state transition diagram .
...
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