1、BRITISH STANDARD BS EN 60870-5-5: 1996 IEC 870-5-5: 1995 Telecontrol equipment and systems Part 5: Transmission protocols Section 5 Basic application functions The European Standard EN 60870-5-5:1995 has the status of a British Standard ICS 33.200BSEN60870-5-5:1996 This British Standard, having been
2、 prepared under the directionof the Electrotechnical Sector Board, was published underthe authority of the Standards Board and comes into effect on 15 February 1996 BSI 07-1999 The following BSI references relate to the work on this standard: Committee reference PEL/57 Draft for comment 90/25650 DC
3、ISBN 0 580 24898 4 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PEL/57, Power system control and associated communications, upon which the following bodies were represented: Association of Consulting Engineers BEAMA Lt
4、d. BEAMA Metering Association (BMA) EEA (Association of Electronics, Telecommunications and Business Equipment Industries) Electricity Association GAMBICA (BEAMA Ltd.) Transmission and Distribution Association (BEAMA Ltd.) Amendments issued since publication Amd. No. Date CommentsBSEN60870-5-5:1996
5、BSI 07-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 60870-5-5 5 List of references Inside back coverBSEN60870-5-5:1996 ii BSI 07-1999 National foreword This British Standard has been prepared by Technical Committee PEL/57 and is the Englis
6、h language version of EN 60870-5-5:1995 Telecontrol equipment and systems Part 5: Transmission protocols Section 5: Basic application functions, published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC870-5-5:1995 published by the International Ele
7、ctrotechnical Commission (IEC). A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-ref
8、erences Publication referred to Corresponding British Standard IEC 50(371):1984 BS 4727 Glossary of electrotechnical, power, telecommunication, electronics, lighting and colour terms Part 2 Terms particular to power engineering Group 12:1990 Telecontrol terminology IEC 870-1-1:1988 BS 7404 Telecontr
9、ol equipment and systems Part 1 General considerations Section 1.1:1991 General principles BS EN 60870 Telecontrol equipment and systems Part 5 Transmission protocols EN 60870-5-1:1993 (IEC 870-5-1:1990) Section 5.1:1994 Transmission frame formats EN 60870-5-2:1993 (IEC 870-5-2:1992) Section 5.2:199
10、4 Link transmission procedures EN 60870-5-3:1992 (IEC 870-5-3:1992) Section 5.3:1992 Specification for general structure of application data EN 60870-5-4:1993 (IEC 870-5-4:1993) Section 5.4:1993 Definition and coding of application information elements ISO 7498:1984 BS 6568 Reference model of open s
11、ystems interconnection Part 1:1988 Basic reference model (incorporating connectionless-mode transmission) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 50, an inside back cover and a back cover. This standard has been upda
12、ted (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN60870-5-5 July1995 ICS33.200 Descriptors: Telecontrol, data transmission, open systems interconnection, appli
13、cation layer, protocol, basic application function, communication service, transmission procedure, enhanced performance architecture, application service, station initialization, acquisition of events, general interrogation, clock synchronization, command transmission, file transfer English version
14、Telecontrol equipment and systems Part 5: Transmission protocols Section 5: Basic application functions (IEC 870-5-5:1995) Matriels et systmes de tlconduite Partie 5: Protocoles de transmission Section 5: Fonctions dapplication de base (CEI 870-5-5:1995) Fernwirkeinrichtungen und -systeme Teil 5: be
15、rtragungsprotokolle Hauptabschnitt 5: Grundlegende Anwendungsfunktionen (IEC 870-5-5:1995) This European Standard was approved by CENELEC on 1995-07-04. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the
16、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, Germ
17、an). 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, Denmark,
18、 Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnisch
19、e Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1995 Copyright reserved to CENELEC members Ref. No. EN 60870-5-5:1995 EEN60870-5-5:1995 BSI 07-1999 2 Foreword The text of document 57/200/DIS, future edition 1 of IEC870-5-5, prepared by IECTC57, Power system control and associated
20、communications, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN60870-5-5 on1995-07-04. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. In this standard, Annex ZA is normative. Annex ZA has been added by CENELEC. Co
21、ntents Page Foreword 2 Introduction 5 1 Scope and object 5 2 Normative references 5 3 Definitions 5 4 Application services 6 4.1 Application service primitives 6 5 General concept of application functions 7 6 Basic application functions 8 6.1 Station initialization 10 6.2 Data acquisition by polling
22、 24 6.3 Cyclic data transmission 26 6.4 Acquisition of events 26 6.5 Acquisition of events by quick-check procedures 27 6.6 General interrogation Outstation interrogation 29 6.7 Clock synchronization 31 6.8 Command transmission 33 6.9 Transmission of integrated totals (telecounting) 36 6.10 Paramete
23、r loading 38 6.11 Test procedure 40 6.12 File transfer 40 6.13 Acquisition of transmission delay 48 Annex ZA (normative) Normative references tointernational publications with their corresponding European publications 49 Figure 1 Basic application services 7 Figure 2 Location of communication servic
24、esandapplication functions in the EPA(enhanced performance architecture) model 7 Figure 3 Sequential procedure, general initialization procedure 11 Figure 4 Sequential procedure, initializationofthe controlling station inunbalanced transmission systems 13 Figure 5 Sequential procedure, local initial
25、ization of the controlled station in unbalancedtransmission systems 15 Figure 6 Sequential procedure, remote initialization of the controlled station in unbalancedtransmission systems 17 latest date by which the EN has to be implemented at national level by publication of an identical national stand
26、ard or by endorsement (dop) 1996-04-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 1996-04-01EN60870-5-5:1995 BSI 07-1999 3 Page Figure 7 Sequential procedure, initializationofthe controlling station in balancedtransmission systems 19 Figure 8 Seque
27、ntial procedure, local initialization of the controlled station in balancedtransmission systems 21 Figure 9 Sequential procedure, remote initialization of the controlled station in balancedtransmission systems 23 Figure 10 Sequential procedure, pollingprocedure 25 Figure 11 Sequential procedure, cyc
28、lic datatransmission 26 Figure 12 Sequential procedure, acquisitionofevents 27 Figure 13 Sequential procedure, acquisitionofevents by quick-check procedures 28 Figure 14 Sequential procedure, outstationinterrogation procedure 30 Figure 15 Sequential procedure, clock synchronization procedure, embedd
29、ed in time-tagged event transmission procedures 32 Figure 16 Sequential procedure, commandprocedures 35 Figure 17 Sequential procedure, acquisitionofintegrated totals 37 Figure 18 Sequential procedure, parameterloading 39 Figure 19 Sequential procedure, test procedure 40 Figure 20 General constructi
30、on of a file 41 Figure 21 Sequential procedure, file transfer(monitor direction) concluded) 43 Figure 22 Sequential procedure, file transfer(control direction) concluded) 46 Figure 23 Sequential procedure, acquisitionoftransmission delay 484 blankEN60870-5-5:1995 BSI 07-1999 5 Introduction This sect
31、ion of IEC870-5 specifies an assortment of basic application functions for use in telecontrol systems. 1 Scope and object This section of IEC 870-5 applies to telecontrol equipment and systems with coded bit serial data transmission for monitoring and controlling geographically widespread processes.
32、 It defines basic application functions that perform standard procedures for telecontrol systems. Basic application functions are application procedures that reside beyond layer 7 (application layer) of the ISO reference model for open communication systems. The defined application procedures utiliz
33、e standard services of the application layer. The specifications of this section serve as basic standards for different companion standards that will be elaborated in detail for specific telecontrol tasks. Each companion standard may use a specific selection of the defined functions. Basic applicati
34、on functions, which are not in this section but are found necessary for defining telecontrol companion standards, should be specified in these companion standards. Only the definition of companion standards will enable interoperability among compatible telecontrol equipment. The general structure of
35、 application service data units (ASDUs) used by procedures specified in this section are defined in IEC870-5-3. Standards specified in this section are compatible with standards defined in sections 1 to 4 of IEC 870-5 (see clause 2). 2 Normative references The following normative documents contain p
36、rovisions which, through reference in this text, constitute provisions of this section of IEC870-5. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on this section of IEC870-5 are encouraged to investigat
37、e the possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 50 (371):1984, International Electrotechnical Vocabulary (IEV) Chapter 371: Telecontrol. IEC 870-1-1:1988, Tele
38、control equipment and systems Part 1: General considerations Section1:General principles. IEC 870-5-1:1990, Telecontrol equipment and systems Part 5: Transmission protocols Section1:Transmission frame formats. IEC 870-5-2:1992, Telecontrol equipment and systems Part 5: Transmission protocols Section
39、 2: Link transmission procedures. IEC 870-5-3:1992, Telecontrol equipment and systems Part 5: Transmission protocols Section3:General structure of application data. IEC 870-5-4:1993, Telecontrol equipment and systems Part 5: Transmission protocols Section4:Definition and coding of application inform
40、ation elements. ISO 7498:1984, Information processing systems Open Systems Interconnection Basic Reference Model. 3 Definitions For the purpose of this section of IEC 870-5, the following definitions apply: 3.1 basic application function (in telecontrol) transmission procedure that performs a superv
41、isory or control function that is generally used in telecontrol systems Examples: command transmission, event transmission, cyclic transmission, etc.EN60870-5-5:1995 6 BSI 07-1999 3.2 companion standard a companion standard adds semantics to the definitions of the basic standard or a functional prof
42、ile. This may be expressed by defining particular uses for information objects or by defining additional information objects, service procedures and parameters of the basic standard NOTECompanion standards do not alter the standards to which they refer, but make explicit the relationship between tho
43、se used together for a specific domain of activity. 3.3 enhanced performance architecture (EPA) a protocol reference model that provides, compared with the full seven-layer architecture according to the OSI basic reference model (ISO7498), a three-layer architecture for obtaining faster response tim
44、es for the critical information, but with service limitations 3.4 compound data field (CP) a sequence of data fields with successive bit allocations that forms an information element 3.5 control direction the direction of transmission from the controlling station to a controlled station 3.6 monitor
45、direction the direction of transmission from a controlled station to the controlling station 4 Application services Each application process can have a “primary application function” and a “secondary application function”. A “primary application function” is part of an application process that initi
46、ates application requests to a remote application process by means of a “secondary application function” belonging to the latter. Requested tasks are executed via communication services that involve the transmission of protocol data units (PDUs). Sequential procedures of communication services are d
47、escribed by means of sequences of service primitives. 4.1 Application service primitives A primary application initiates a function by a service request primitive “request”. Confirmed application services require responses from the secondary application. The secondary application returns associated
48、responses by service response primitives that are delivered to the primary application by service confirm primitives (see Figure 1). Service.request (.req) The primary application initiates a request by this service primitive to a remote secondary application function via the communication services.
49、 Service.indication (.ind) The communication services use this service primitive to deliver the service indication request to the secondary application function. Service.response (.res) The secondary application function uses this service primitive to respond to a request from the communication services. Service.confirm (.con) The communication services use this service primitive to deliver the response of the secondary to the primary application function.EN60870-5-5:1995 BSI 07-19
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