SIST EN 61158-6-4:2008
Industrial communication networks - Fieldbus specifications - Part 6-4: Application layer protocol specification - Type 4 elements
Industrial communication networks - Fieldbus specifications - Part 6-4: Application layer protocol specification - Type 4 elements
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." This standard 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. This standard specifies interactions between remote applications and defines the externally visible behavior provided by the Type 4 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 standard is to define the protocol provided to 1) define the wire-representation of the service primitives defined in IEC 61158-5-4, and 2) define the externally visible behavior associated with their transfer. This standard specifies the protocol of the Type 4 fieldbus application layer, in conformance with the OSI Basic Reference Model (ISO/IEC 7498) and the OSI application layer structure (ISO/IEC 9545).
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 des services des couches d'application - Eléments de type 4
Industrijska komunikacijska omrežja - Specifikacije za procesno vodilo - 6-4. del: Specifikacija protokola na aplikacijskem nivoju - Elementi tipa 4 (IEC 61158-6-4:2007)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 61158-6-4:2008
01-julij-2008
1DGRPHãþD
SIST EN 61158-6:2004
Industrijska komunikacijska omrežja - Specifikacije za procesno vodilo - 6-4. del:
Specifikacija protokola na aplikacijskem nivoju - Elementi tipa 4 (IEC 61158-6-
4:2007)
Industrial communication networks - Fieldbus specifications - Part 6-4: Application layer
protocol specification - Type 4 elements
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 des services des couches d'application - Eléments de type 4
Ta slovenski standard je istoveten z: EN 61158-6-4:2008
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 61158-6-4:2008 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 61158-6-4:2008
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SIST EN 61158-6-4:2008
EUROPEAN STANDARD
EN 61158-6-4
NORME EUROPÉENNE
March 2008
EUROPÄISCHE NORM
ICS 35.100.70; 25.040.40 Partially supersedes EN 61158-6:2004
English version
Industrial communication networks -
Fieldbus specifications -
Part 6-4: Application layer protocol specification -
Type 4 elements
(IEC 61158-6-4:2007)
Réseaux de communication industriels - Industrielle Kommunikationsnetze -
Spécifications des bus de terrain - Feldbusse -
Partie 6-4: Spécification des services Teil 6-4: Protokollspezifikation
des couches d'application - des Application Layer
Eléments de type 4 (Anwendungsschicht) -
(CEI 61158-6-4:2007) Typ 4-Elemente
(IEC 61158-6-4:2007)
This European Standard was approved by CENELEC on 2008-02-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61158-6-4:2008 E
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SIST EN 61158-6-4:2008
EN 61158-6-4:2008 - 2 -
Foreword
The text of document 65C/476/FDIS, future edition 1 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 was approved by CENELEC as EN 61158-6-4 on 2008-02-01.
This and the other parts of the EN 61158-6 series supersede EN 61158-6:2004.
With respect to EN 61158-6:2004 the following changes were made:
– deletion of Type 6 fieldbus for lack of market relevance;
– addition of new fieldbus types;
– partition into multiple parts numbered 6-2, 6-3, …6-20.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2008-11-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-02-01
NOTE 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 particular data-link layer
protocol type to be used with physical layer and application layer protocols in type combinations as specified explicitly in the
EN 61784 series. Use of the various protocol types in other combinations may require permission from their respective
intellectual-property-right holders.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61158-6-4:2007 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 60559 NOTE Harmonized as HD 592 S1:1991 (not modified).
IEC 61784-1 NOTE Harmonized as EN 61784-1:2008 (not modified).
IEC 61784-2 NOTE Harmonized as EN 61784-2:2008 (not modified).
__________
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SIST EN 61158-6-4:2008
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Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application 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 When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
1) 2)
IEC 61158-3-4 - Industrial communication networks - EN 61158-3-4 2008
Fieldbus specifications -
Part 3-4: Data-link layer service definition -
Type 4 elements
1) 2)
IEC 61158-4-4 - Industrial communication networks - EN 61158-4-4 2008
Fieldbus specifications -
Part 4-4: Data-link layer protocol
specification - Type 4 elements
1) 2)
IEC 61158-5-4 - Industrial communication networks - EN 61158-5-4 2008
Fieldbus specifications -
Part 5-4: Application layer service definition -
Type 4 elements
1) 2)
ISO/IEC 7498-1 - Information technology - Open Systems EN ISO/IEC 7498-1 1995
Interconnection - Basic Reference Model:
The Basic Model
1)
ISO/IEC 8822 - Information technology - Open Systems - -
Interconnection - Presentation service
definition
1)
ISO/IEC 8824-2 - Information technology - Abstract Syntax - -
Notation One (ASN.1): Information object
specification
1)
ISO/IEC 9545 - Information technology - Open Systems - -
Interconnection - Application Layer structure
1)
ISO/IEC 10731 - Information technology - Open Systems - -
Interconnection - Basic reference model -
Conventions for the definition of OSI services
1)
Undated reference.
2)
Valid edition at date of issue.
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SIST EN 61158-6-4:2008
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SIST EN 61158-6-4:2008
IEC 61158-6-4
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
Industrial communication networks – Fieldbus specifications –
Part 6-4: Application layer protocol specification – Type 4 elements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
W
ICS 35.100.70; 25.040.40 ISBN 2-8318-9476-X
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SIST EN 61158-6-4:2008
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CONTENTS
FOREWORD.5
INTRODUCTION.7
1 Scope.8
1.1 General .8
1.2 Specifications.8
1.3 Conformance.8
2 Normative references .9
3 Terms, definitions, symbols, abbreviations and conventions .10
3.1 Referenced terms and definitions .10
3.2 Abbreviations and symbols.11
3.3 Conventions .11
4 FAL syntax description .13
4.1 FAL-AR PDU abstract syntax .13
4.2 Data types.15
5 Transfer syntaxes.15
5.1 APDU encoding.15
5.2 Variable object encoding and packing .19
5.3 Error codes .22
6 FAL protocol state machines .22
7 AP-context state machine.23
8 FAL service protocol machine (FSPM).24
8.1 Primitives exchanged between FAL User and FSPM .24
8.2 FSPM states.24
9 Application relationship protocol machine (ARPM).30
9.1 Primitives exchanged between ARPM and FSPM .30
9.2 ARPM States.30
10 DLL mapping protocol machine (DMPM).32
10.1 Data-link Layer service selection .32
10.2 Primitives exchanged between ARPM and DLPM .32
10.3 Primitives exchanged between DLPM and data-link layer .33
10.4 DLPM states.33
11 Protocol options .35
Bibliography.36
Figure 1 – State transition diagram .12
Figure 2 – APDU header structure .16
Figure 3 – Instruction subfield of ControlStatus.16
Figure 4 – Errorcode subfield of ControlStatus.16
Figure 5 – Remaining subfields of ControlStatus.17
Figure 6 – DataFieldFormat encoding .17
Figure 7 – Structure of request APDU body .17
Figure 8 – Structure of response APDU body.18
Figure 9 – Variable identifier.18
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61158-6-4 © IEC:2007(E) – 3 –
Figure 10 – Code subfield of variable identifier .18
Figure 11 – Summary of FAL architecture .23
Figure 12 – FSPM proxy object state machine .25
Figure 13 – FSPM real object state machine.29
Figure 14 – ARPM state machine.30
Figure 15 – DLPM state machine .33
Table 1 – State machine description elements .12
Table 2 – APDU header .13
Table 3 – APDU body .14
Table 4 – Transfer syntax for Array.20
Table 5 – Transfer syntax for Structure .21
Table 6 – Common variable object attributes .21
Table 7 – Variable type identifiers.21
Table 8 – FIFO variable object attributes .22
Table 9 – Error codes .22
Table 10 – Primitives exchanged between FAL-User and FSPM .24
Table 11 – REQUEST.req FSPM constraints.25
Table 12 – REQUEST.req FSPM actions .26
Table 13 – RESPONSE.cnf FSPM constraints .27
Table 14 – RESPONSE.cnf FSPM actions .28
Table 15 – AR Send.ind proxy FSPM constraints .28
Table 16 – AR Send.ind proxy FSPM actions .28
Table 17 – AR Send.ind real FSPM constraints.29
Table 18 – AR Send.ind real FSPM Actions .29
Table 19 – Primitives issued by FSPM to ARPM .30
Table 20 – Primitives issued by ARPM to FSPM .30
Table 21 – Primitives issued by ARPM to ARPM .30
Table 22 – AR Send.req ARPM constraints.31
Table 23 – AR Send.req ARPM actions.31
Table 24 – AR Acknowledge.req ARPM constraints .31
Table 25 – AR Acknowledge.req ARPM actions .31
Table 26 – AR Send.ind ARPM constraints .31
Table 27 – AR Send.req ARPM actions.32
Table 28 – Primitives issued by ARPM to DLPM .33
Table 29 – Primitives issued by DLPM to ARPM .33
Table 30 – Primitives issued by DLPM to data-link layer .33
Table 31 – Primitives issued by data-link layer to DLPM .33
Table 32 – AR Send.req DLPM constraints .34
Table 33 – AR Send.req DLPM actions .34
Table 34 – AR Acknowledge.req DLPM constraints.34
Table 35 – AR Acknowledge.req DLPM actions.34
Table 36 – DL-UNITDATA.ind DLPM constraints.35
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Table 37 – DL-UNITDATA.ind DLPM actions.35
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SIST EN 61158-6-4:2008
61158-6-4 © IEC:2007(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
FIELDBUS SPECIFICATIONS –
Part 6-4: Application layer protocol specification – Type 4 elements
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
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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.
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.
NOTE 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 particular data-link layer protocol type to be used with physical layer and application layer protocols in type
combinations as specified explicitly in the IEC 61784 series. Use of the various protocol types in other
combinations may require permission of their respective intellectual-property-right holders.
International Standard IEC 61158-6-4 has been prepared by subcommittee 65C: Industrial
networks, of IEC technical committee 65: Industrial-process measurement, control and
automation.
This first edition and its companion parts of the IEC 61158-6 subseries cancel and replace
IEC 61158-6:2003. This edition of this part constitutes a technical addition. This part and its
Type 4 companion parts also cancel and replace IEC/PAS 62412, published in 2005.
This edition of IEC 61158-6 includes the following significant changes from the previous
edition:
a) deletion of the former Type 6 fieldbus for lack of market relevance;
b) addition of new types of fieldbuses;
c) partition of part 6 of the third edition into multiple parts numbered -6-2, -6-3, …
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The text of this standard is based on the following documents:
FDIS Report on voting
65C/476/FDIS 65C/487/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 ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result 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.
NOTE The revision of this standard will be synchronized with the other parts of the IEC 61158 series.
The list of all the parts of the IEC 61158 series, under the general title Industrial
communication networks – Fieldbus specifications, can be found on the IEC web site.
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SIST EN 61158-6-4:2008
61158-6-4 © IEC:2007(E) – 7 –
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/TR 61158-1.
The application protocol provides the application service by making use of the services
available from the data-link or other immediately lower 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 application entities (AEs) 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:
• as a guide for implementors and designers;
• for use in the testing and procurement of equipment;
• as part of an agreement for the admittance of systems into the open systems environment;
• 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.
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INDUSTRIAL COMMUNICATION NETWORKS –
FIELDBUS SPECIFICATIONS –
Part 6-4: Application layer protocol specification – Type 4 elements
1 Scope
1.1 General
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.”
This standard 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.
This standard specifies interactions between remote applications and defines the externally
visible behavior provided by the Type 4 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 standard is to define the protocol provided to
1) define the wire-representation of the service primitives defined in IEC 61158-5-4, and
2) define the externally visible behavior associated with their transfer.
This standard specifies the protocol of the Type 4 fieldbus application layer, in conformance
with the OSI Basic Reference Model (ISO/IEC 7498) and the OSI application layer structure
(ISO/IEC 9545).
1.2 Specifications
The principal objective of this standard is to specify the syntax and behavior of the application
layer protocol that conveys the application layer services defined in IEC 61158-5-4.
A secondary objective is to provide migration paths from previously-existing industrial
communications protocols. It is this latter objective which gives rise to the diversity of
protocols standardized in IEC 61158-6.
1.3 Conformance
This standard do not specify individual implementations or products, nor do they constrain the
implementations of application layer entities within industrial automation systems.
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61158-6-4 © IEC:2007(E) – 9 –
Conformance is achieved through implementation of this application layer protocol
specification.
2 Normative references
The following referenced documents are indispensable for the application 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.
IEC 61158-3-4, Industrial communication networks – Fieldbus specifications – Part 3-4: Data-
link layer service definition – Type 4 elements
IEC 61158-4-4, Industrial communication networks – Fieldbus specifications – Part 4-4: Data-
link layer protocol specification – Type 4 elements
IEC 61158-5-4, Industrial communication networks – Fieldbus specifications – Part 5-4:
Application layer service definition – Type 4 elements
ISO/IEC 10731, Information technology – Open Systems Interconnection – Basic Reference
Model – Conventions for the definition of OSI services
ISO/IEC 7498-1, Information technology – Open Systems Interconnection – Basic Reference
Model – Part1: The Basic Model
ISO/IEC 8822, Information technology – Open Systems Interconnection – Presentation
service definition
ISO/IEC 8824, Information technolog
...
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