1、STD.BS1 BS EN bL33Y-4-L-ENGL 1997 411 1b24bb9 Ob4824b 202 m BRITISH STANDARD Distribution automation using distribution line carrier system Part 4. Data communication protocols Section 1. Reference model of the communication system * * rn The European Standard EN 61334-4-1 : 1996 has the status of a
2、 British Standard. ICs 33.040.40 3s EN i1334-4-1 : 1997 EC 61334-4-1 1996 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW -!- I vTT2 BS EN 61334-4-1 : 1997 National foreword This British Standard is the English language version of EN 61334-4-1 : 1996. It is identical with IEC
3、613344-1 : 1996. The UK participation in its preparation was entrusted to Technical Committee PEU57, Power system control and associated communications, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible internationaUEuropean committee any enquiries
4、 on the interpretation, or proposals for change, and keep the UK interests informed - monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretasy. From 1 January 1997, all IEC
5、 publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifers from both systems. Cross-references Attention is drawn to th
6、e fact that CEN and CENELEC Standards normally include an annex which lists nonnative references to intedonal publications with their corresponding or European publications. The British Standards which implement these international or European publications may be found in the BSI Stankds Catalogue u
7、nder the section entitied International Standards Correspondence Index, or by using the fi 33.040.40 Descriptors: Electric power, distribution automation, line carrier communication systems, data communication protocol, reference model English version Distribution automation using distribution line
8、carrier systems Part 4: Data communication protocols Section 1 : Reference model of the communication system (IEC 1334-4-1 : 1996) Automatisation de la distribution laide de systmes de communication courants porteurs Partie 4: Protocoles de communication de donnes Section 1 : Modle de rfrence du Ve
9、rtei I u n gsa u toma t isier un g mit Hi If e von Trgersystemen auf Verte i I un gs le i t un g e n Teil 4: Datenkommunikationsprotokolle Hauptabschnitt 1 : Referenzmodell fr das Kommunikationsystem systme de communication (CE1 1334-4-1 : 1996) (IEC 1334-4-1 : 1996) This European Standard was appro
10、ved by CENELEC on 1996-1 0-01. CENELEC members are bound to comply with the CENKENELEC 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 natio
11、nal 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
12、 and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switz
13、erland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35. B - 1050 Brussels 1996 Copyright reserved to CENELEC members Ref. No. E
14、N 61334-4-1:1996 E STD-BSI BS EN b1334-4-L-ENGL L977 a lb24bb9 b118244 TLL Page 2 EN 61334-4-1 : 1996 Foreword The text of document 57/26O/FDIS, future edition 1 of IEC 1334-4-1, prepared by IEC TC 57, Power system control and associated communications, was submitted to the IEC-CENELEC parallel vote
15、 and was approved by CENELEC as EN 61334-4-1 on 1996-10-01. 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) 1997-07-01 - latest date by which the national standards conflict
16、ing with the EN have to be withdrawn (daw) 1997-07-01 Annexes designated “normative“ are part of the body of the standard. Annexes designated “informative“ are given for information only. In this standard, annex ZA is normative and annex A is informative. Annex ZA has been added by CENELEC. Endorsem
17、ent notice The text of the International Standard IEC 1334-4-1 :1996 was approved by CENELEC as a European Standard without any modification. STD-BSI BS EN bL334-ti-L-ENGL 1997 S Lb24bb4 Ubi18250 733 I Page 3 EN 61334-4-1 : 1996 CONTENTS Page INTRODUCTION 5 Clause 1 scope 6 2 Nonnative references .
18、6 3 Description of the reference model 7 3.1 Introduction 7 32 Basic principles of the OS1 model 7 3.2.1 Layered architecture 7 3.2.2 Services and protocols . 8 3.3 Reference model . 9 3.3.1 Minimal three-layer architecture . 9 3.3.2 Basic transmission principles 11 3.3.3 Physical layer 11 3.35 MAC
19、sublayer . 12 3.3.6 Lu3 sublayer 12 3.3.7 Optional intermediate layers . 13 3.3.8 Application layer . 13 3.3.4 Data link layer . 12 3.3.9 Network management . 14 3.4 Systems management 15 4 Naming and addressing in DCP . 15 4.1 General overview 15 4.1.1 Naming 15 4.1.2 Addressing 16 4.1.3 Registrati
20、on authority for naming and addressing . 17 4.1.4 Directories . 17 4.2 Global description 17 4.3 MAC addresses . 18 4.3.1 MAC address format . 18 4.3.2 Predefined MAC addresses . 18 4.4 LLC addresses 19 4.4.1 LLC address format 19 o BSI 1997 4.4.2 DL selector types 19 4.4.3 LLC predefined selector 2
21、0 4.5 Application process titles ._ _ _. _ _ ._._ _ 20 4.5.1 Titles overview . 20 4.5.2 Predefined titles 21 Annex A - Bibliography . ._._._. 22 Annex ZA - Normative references to international publications with their corresponding European publications 23 _ STDmBSI BS EN bL334-4-1-ENGL 1997 m Lb24b
22、b b48252 50b 111 Page 5 EN 61334-4-1 : 1996 INTRODUCTION The documents specifying communication through power line carrier systems aim at drawing up a comprehensive specification according to the structure of the open system interconnection model (OS1 from ISO). This reference model provides a basic
23、 description. Details of the specifications are given in the other sections of part 4. This document describes the communication system based on a three-layer model. Future extensions to more layers are possible. STD.BSI BS EN b1334-4-1-ENGL 1777 lb24bb OhYi3253 442 Page 6 EN 61334-4-1 : 1996 DISTRI
24、BUTION AUTOMATION USING DISTRIBUTION LINE CARRIER SYSTEMS - Part 4 : Data communication protocols - Section 1: Reference model ofthe communication system 1 Scope The scope of application of the specifications of the sections of part 4 is the communication through the so-called distribution line carr
25、ier technology (DLC) on both low and medium voltage distribution network. The application range based on telecommunication processes is wide and cannot be described exhaustively in this section; application examples are: control and monitoring of the distribution network, order broadcast, control of
26、 user interfaces, public lighting, traffic lights supervision, automatic meter reading, etc. Extensions to oiher communication media are also allowed. 2 Normative references The following nonnative documents contain provisions which, through reference in this text, constitute provisions of this sect
27、ion of IEC 13344. At the time of publication, the editions indicated were valid. Ail normative documents are subject to revision, and parties to agreements based on this section of IEC 1334-4 are encouraged to investigate the possibility of applying the most recent editions of the normative document
28、s listed below. Members of IEC and IS0 maintain registers of currently valid International Standards. IECIFDIS 1334-4-32: Distribution automation using distribution line carrier systems - Part 4: Data communication protocols - Section 32: Data link layer - Logical link control* IEC 1334441: 1996, Di
29、stribution automation using distribution line cam-er system - Parl 4: Data communication protocols - Section 41: Application protocols - Distribution line message specif cation IECIFDIS 1334-4-42: Distribution automation using distribution line carrier systems - Part 4: Data communication protocols
30、- Section 42: Application protocols - Application laper* ISO/IEC 7498-3: 1989, Information processing systems - Open System Interconnection - Basic Reference Model - Part 3 : Naming and addressing ISO/IEc 8802-2 1994, Information technology - Telecommunications and informatwn exchange between system
31、 - Local and metropolitan area networks - Specific requirements .- Part 2.: Logical link control * At prsait at the stage of Final Draft Intanational Standard (57/266/FDIS). At prtseat at the nage of Final Draft Intanational Standard (57/265/mIS). B. STD.BSI BS EN b1334-4-1-ENGL 1977 Lb24bb9 b48254
32、389 D Page 7 EN 61334-4-1 : 1996 3 Description of the reference model 3.1 Introduction The specification of a communication system, such as an industrial local network or a set of interconnected subnetwork serves the following purpose: opening of the corresponding equipment to distributed applicatio
33、ns, giving official recognition to, and perpetuating, ongoing developments, implementing tools and structures for conformance testing in order to promote the interworking capability. The distribution line carrier transmission network fully justifies such a specification since this communication syst
34、em can be used for a large number of devices with various functions (station control unit, remote controlled feeder switch, meters, transformer station concentrators, portable input stations, lighting sources, automatic traffic lights at crossroads) which are manufactured by several competing suppli
35、ers. According to the rules in the field of telecommunication this specification should be comprehensive and unambiguous and should comply with the economic requirements of final applications. 3.2 Basic principles of the OSI model 3.2. I Layered architecture The purpose of the OS1 standardisation is
36、 the development of standardid telecommunication networks capable of supporting a wide range of heterogeneous equipment in order to form an “open system“. So that this heterogeneity may be possible, the OSI standards are restricted to the specification of the functions to be performed by each open s
37、ystem and of the protocols which are to be implemented between these systems. They avoid prescribing a particular mode for the achievement of the corresponding functions. Thus, the OS1 standards specify the behavior of open systems as a whole in their exchanges with other open systems and not their
38、internal operation. The conformity of a real system with the given specifications is based on the external view of its behavior during its exchanges with other systems. Among the different models for the organisation of activities, the OS1 has chosen the layered model and features seven layers: phys
39、ical layer, data link layer, network layer, transport layer, session layer, presentation layer and application layer. STD-BSI BS EN b1334-4-1-ENGL 1997 E Lb24bbS Ob48255 215 E Page 8 EN 61334-4-1 : 1996 3.2.2 Services and protocols The OS1 modei defines elementary concepts in order to describe the o
40、peration of each layer through its relationships with adjacent layers. (N+1)-layer (N)-SAP y (N)-Services: services requested from a (N)-layer by a (N+1)-layer (N)-layer Figure 1 - OS1 service definition Within open systqns, the functions of the (N+l)-layer are carried out through (N+l)-entities. Th
41、e interface between (N+lentities and entities With a lower index is achieved in the form of an interaction service called (N) service, at right angles with access points called (N)-SAP. The cooperation between (N+I)cntities in order to carry out the functions of the (N+l)-layer is governed by the (N
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