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1、BRITISH STANDARD BS EN 61158-4-4:2008 Industrial communication networks Fieldbus specifications Part 4-4: Data-link layer protocol specification Type 4 elements ICS 25.040.40; 35.100.20 ? Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boei
2、ng Co/5910770001 Not for Resale, 08/14/2008 21:20:04 MDTNo reproduction or networking permitted without license from IHS -,-,- BS EN 61158-4-4:2008 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 May 2008 BSI 2008 ISBN 978 0 580 61577 1 Na
3、tional foreword This British Standard is the UK implementation of EN 61158-4-4:2008. It is identical with IEC 61158-4-4:2007. Together with all of the other sections of BS EN 61158-4, it supersedes BS EN 61158-4:2004 which is withdrawn. The UK participation in its preparation was entrusted to Techni
4、cal Committee AMT/7, Industrial communications Process measurement and control, including Fieldbus. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are re
5、sponsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publication DateComments Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5
6、910770001 Not for Resale, 08/14/2008 21:20:04 MDTNo reproduction or networking permitted without license from IHS -,-,- EUROPEAN STANDARD EN 61158-4-4 NORME EUROPENNE EUROPISCHE NORM February 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrot
7、echnique Europisches Komitee fr 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 61158-4-4:2008 E ICS 35.100.20; 25.040.40 Partially supersed
8、es EN 61158-4:2004 English version Industrial communication networks - Fieldbus specifications - Part 4-4: Data-link layer protocol specification - Type 4 elements (IEC 61158-4-4:2007) Rseaux de communication industriels - Spcifications des bus de terrain - Partie 4-4: Spcification des protocoles de
9、s couches de liaison de donnes - Elments de type 4 (CEI 61158-4-4:2007) Industrielle Kommunikationsnetze - Feldbusse - Teil 4-4: Protokollspezifikation des Data Link Layer (Sicherungsschicht) - Typ 4-Elemente (IEC 61158-4-4:2007) This European Standard was approved by CENELEC on 2008-02-01. CENELEC
10、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 appli
11、cation 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 Secretari
12、at 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 Net
13、herlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 21:20:04 MDTNo reproduction
14、or networking permitted without license from IHS -,-,- Foreword The text of document 65C/474/FDIS, future edition 1 of IEC 61158-4-4, 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
15、approved by CENELEC as EN 61158-4-4 on 2008-02-01. This and the other parts of the EN 61158-4 series supersede EN 61158-4:2004. With respect to EN 61158-4:2004 the following changes were made: deletion of Type 6 fieldbus, and the placeholder for a Type 5 fieldbus data-link layer, for lack of market
16、relevance; addition of new fieldbus types; partition into multiple parts numbered 4-1, 4-2, , 4-19. 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 w
17、hich 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
18、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
19、intellectual-property-right holders. Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61158-4-4:2007 was approved by CENELEC as a European Standard without any modification. _ BS EN 61158-4-4:2008 2 Copyright British Standards Institution Provided b
20、y IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 21:20:04 MDTNo reproduction or networking permitted without license from IHS -,-,- CONTENTS INTRODUCTION.5 1 Scope.6 1.1 General.6 1.2 Specifications6 1.3 Procedures6 1.4 Applicability.6 1.5 Con
21、formance.6 2 Normative references .7 3 Terms, definitions, symbols and abbreviations7 3.1 Reference model terms and definitions7 3.2 Service convention terms and definitions.9 3.3 Terms and definitions10 3.4 Symbols and abbreviations13 4 Data Link Protocol Definition 13 4.1 Overview of the DL-protoc
22、ol 13 4.2 General structure and encoding of PhIDUs and DLPDUs, and related elements of procedure.25 4.3 DLPDU-specific structure, encoding and elements of procedure32 4.4 DL-service elements of procedure .36 4.5 Route mechanism39 4.6 Link-access system .42 4.7 Local variables, counters and queues43
23、Bibliography45 Figure 1 Relationship of PhE, DLE and DLS-user 14 Figure 2 DLE state diagram for confirmed and unconfirmed, unacknowledged DLPDUs16 Figure 3 DLE state diagram for confirmed acknowledged DLPDUs.17 Figure 4 DLE state diagram for unconfirmed acknowledged DLPDUs.18 Figure 5 Full duplex DL
24、E receive state diagram .19 Figure 6 Full duplex DLE transmit state diagram 19 Figure 7 Link access example22 Figure 8 Simple Type 4-route format28 Figure 9 Extended Type 4-route format28 Figure 10 Complex Type 4-route format .29 Figure 11 Immediate Type 4-route format 29 Figure 12 IP Type 4-route f
25、ormat .30 Figure 13 Control-status format31 Figure 14 Data-field-format 31 Figure 15 Source / destination designator40 Figure 16 Simple Type 4-route generation .40 Figure 17 Extended Type 4-route generation .41 Figure 18 Complex and IP Type 4-route generation .41 Annex ZA (normative) Normative refer
26、ences to international publications with their corresponding European publications 47 BS EN 61158-4-4:2008 3 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 21:20:04 MDTNo reproduction or netw
27、orking permitted without license from IHS -,-,- Figure 19 Simple DL-route generation42 Figure 20 Extended DL-route generation42 Figure 21 Complex and IP DL-route generation42 Table 1 Summary structure of DLPDUs32 Table 2 Structure of Confirmed DLPDUs33 Table 3 Structure of Unconfirmed DLPDUs 34 Tabl
28、e 4 Structure of Acknowledge DLPDU .35 Table 5 Structure of Immediate-reply DLPDU.35 BS EN 61158-4-4:2008 4 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 21:20:04 MDTNo reproduction or netwo
29、rking permitted without license from IHS -,-,- 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 6
30、1158-1. The data-link protocol provides the data-link service by making use of the services available from the physical 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 data-link entities (DLEs) at t
31、he time of communication. These rules for communication are intended to provide a sound basis for development in order to serve a variety of purposes: a) as a guide for implementors and designers; b) for use in the testing and procurement of equipment; c) as part of an agreement for the admittance o
32、f systems into the open systems environment; d) 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
33、 other standards positioned within the OSI or fieldbus reference models, otherwise incompatible systems may work together in any combination. BS EN 61158-4-4:2008 5 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not fo
34、r Resale, 08/14/2008 21:20:04 MDTNo reproduction or networking permitted without license from IHS -,-,- INDUSTRIAL COMMUNICATION NETWORKS FIELDBUS SPECIFICATIONS Part 4-4: Data-link layer protocol specification Type 4 elements 1 Scope 1.1 General The data-link layer provides basic time-critical mess
35、aging communications between devices in an automation environment. This protocol provides a means of connecting devices through a partial mesh network, such that most failures of an interconnection between two devices can be circumvented. In common practice the devices are interconnected in a non-re
36、dundant hierarchical manner reflecting application needs 1.2 Specifications This standard specifies a) procedures for the timely transfer of data and control information from one data-link user entity to a peer user entity, and among the data-link entities forming the distributed data- link service
37、provider; b) the structure of the fieldbus DLPDUs used for the transfer of data and control information by the protocol of this standard, and their representation as physical interface data units. 1.3 Procedures The procedures are defined in terms of a) the interactions between peer DL-entities (DLE
38、s) through the exchange of fieldbus DLPDUs; b) the interactions between a DL-service (DLS) provider and a DLS-user in the same system through the exchange of DLS primitives; c) the interactions between a DLS-provider and a Ph-service provider in the same system through the exchange of Ph-service pri
39、mitives. 1.4 Applicability These procedures are applicable to instances of communication between systems which support time-critical communications services within the data-link layer of the OSI or fieldbus reference models, and which require the ability to interconnect in an open systems interconne
40、ction environment. Profiles provide a simple multi-attribute means of summarizing an implementations capabilities, and thus its applicability to various time-critical communications needs. 1.5 Conformance This standard also specifies conformance requirements for systems implementing these procedures
41、. This standard does not contain tests to demonstrate compliance with such requirements. BS EN 61158-4-4:2008 6 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 21:20:04 MDTNo reproduction or n
42、etworking permitted without license from IHS -,-,- 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
43、any amendments) applies. IEC 61158-2 (Ed.4.0), Industrial communication networks Fieldbus specifications Part 2: Physical layer specification and service definition IEC 61158-3-4, Industrial communication networks Fieldbus specifications Part 3-4: Data- link layer service definition Type 4 elements
44、ISO/IEC 7498-1, Information technology Open Systems Interconnection Basic Reference Model: The Basic Model ISO/IEC 7498-3, Information technology Open Systems Interconnection Basic Reference Model: Naming and addressing ISO/IEC 10731, Information technology Open Systems Interconnection Basic Referen
45、ce Model Conventions for the definition of OSI services 3 Terms, definitions, symbols and abbreviations For the purposes of this document, the following terms, definitions, symbols and abbreviations apply. 3.1 Reference model terms and definitions This standard is based in part on the concepts devel
46、oped in ISO/IEC 7498-1 and ISO/IEC 7498-3, and makes use of the following terms defined therein. 3.1.1 called-DL-address 7498-3 3.1.2 calling-DL-address 7498-3 3.1.3 centralized multi-end-point-connection 7498-1 3.1.4 correspondent (N)-entities correspondent DL-entities (N=2) correspondent Ph-entiti
47、es (N=1) 7498-1 3.1.5 demultiplexing 7498-1 3.1.6 DL-address 7498-3 3.1.7 DL-address-mapping 7498-1 3.1.8 DL-connection 7498-1 3.1.9 DL-connection-end-point 7498-1 3.1.10 DL-connection-end-point-identifier 7498-1 3.1.11 DL-connection-mode transmission 7498-1 3.1.12 DL-connectionless-mode transmission 7498-1 3.1.13 DL-data-sink 7498-1 BS EN 61158-4-4:2008 7 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 21:20:04 MDTNo reproduction or networking permitte