1、BRITISH STANDARD Telecontrol equipment and systems Part 6. Bansmission protocols Section 102. Companion standard for the transmission of integrated totals in electric power systems The European Standard EN 60870-5102 : 1996 has the status of a British Standard BS EN 1997 1996 60870-5-102 : IEC 870-5
2、-102 : ICs 33.200 NO COPMNG WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGIFT LAW STD-BSI BS EN b0870-5-102-ENGL 1777 1b2VbbS 0583385 O20 H BS EN 60870-5-102 1997 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PEy
3、57, Power systems control and associated communidom, upon which the following bodies were represented: BEAMA Metering Association MA) Building Automation and Mains Signalling Association ASMA) Electricity Association Federation of the Elecmnics Industry GAMl3ICA Institution of Electrical Engineers I
4、kansmission and Distribution Association (BEAMA Ltd.) This BriM Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 January 1997 O BSI 1997 Amendments issued since publication I
5、Date Amd No. I Te* affected The foilowing BSI references reiate to the work on this standara committee reference PEU67 Draft for comment ! The following dates were fixed: 2 3 - latestdatebywhichthe 4 EN has to be implemented at donal level by 6 publication of an identical 6.1 national standard or by
6、 6 endorsement (dop) 199704-01 6.1 latest date by which the national standards conflictllig with the EN have to be withdrawn (dow) 1997-04-01 6.2 - Annexes designated nonnative are part of the body of the standard. Annexes designated infonnative are given for information only. In this standard annex
7、 ZA is normative and annexes A and B are informative. Annex ZA has been added by CENELEC. 7 7.1 7.2 Introduction This section of IEC 870-5 serves as a companion standard for the tsansmission of integrated totais in electric power systems based on the series of international standards IEC 870-5. 7.3
8、7.4 8 8.1 8.2 8.3 8.4 8.6 Scope and object Normative references Denitions Protocol structure Physical layer Selections from IS0 and IT-T recommendations Link layer Selections from IEC 870-51 (transmission frame formats) Selections from IEC 870-52 (link tsansmission procedures) Application layer and
9、user process Selections from IEC 870-53 (generai structure of application data) Selections from IEC 870-5-4 (definition and coding of application information elements) Definition and presentation of the specific ASDUs Selections from IEC 870-55 (basic application functions) Interoperability Network
10、configuration (network-specific parameter) Physical layer (network-specific parameter) Link layer (networkspecific parameter) Application layer Basic application functions Annexes A B ZA (informative) Signature (informative) Address list of typical single-point information in monitor direction (norm
11、ative) Normative references to international publications with their corresponding European publications Page 2 3 3 4 5 6 6 8 8 9 10 10 13 24 35 39 39 39 40 40 44 45 46 49 O BSI 1997 STD.BS1 BS EN b870-5-LO2-ENGL 1777 Lb2Libb7 0583370 LI78 m Page 3 EN 60870-6-102 : 1996 TELECONTROL EQUIPMENT AND SYS
12、TEMS - Part 5: Transmission protocols - Section 102: Companion standard for the transmission of integrated totals in electric power systems 1 Scope and object The purpose of this section of IEC 870-5 is to standardize the transmission of integrated totals representing the amount of electrical energy
13、 transferred between power utilities, or between a power utility and independent producers on a high voltage (HV) or medium voltage (MV) network as a part of EMS (energy management systems) functionality. This section is not concerned with the low voltage (LV) networks or the interfaces to the energ
14、y consumption meters themselves. In general the values of integrated totals are transmitted at periodic intervals to update the energy interchanged between utilities or between heavy industry and utilities. The periodically received information is used for supervisory and control purposes of energy
15、distribution in wide area networks. The defined data transmission protocol specifies particular means of security against corruption of the transmitted application data from source to destination. Upgraded provisions of data integrity are desirable because interchange accounting may be based on the
16、correct transfer of this information. Standards specified in this section of IEC 870-5 are compatible with standards defined in IEC 870-5-1 to IEC 870-5-5 (see clause 2). 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute pro
17、visions of this section of IEC 870-5. 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 IEC 870-5 are encouraged to investigate the possibility of applying the most recent editions of the
18、 normative documents indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IEC 50(371): 1984, International Electrofechnical Vocabulary (IEV) - Chapfer 377: Telecontrol IEC 870-1-1: 1988, Telecontrol equipment and systems - Part 1: General considerati
19、ons - Section one: General principles IEC 870-1 -3: 1990, Telecontrol equipment and systems - Pari 1: General considerations - Section three: Glossary IEC 870-1-4: 1994, Telecontrol equipment and systems - Part I: General considerations - Section 4: Basic aspects of telecontrol data transmission and
20、 organization of standards of IEC 870-5 and IEC 870-6 STD-BSI BS EN bU87U-5-LUZ-ENGL 1997 lb24bb7 0583373 324 Page 4 EN 60870-5-102 : 1996 IEC 870-5-1: 1990, Telecontrol equipment and systems - Part 5: Transmission protocols - Section one: Transmission frame formats IEC 870-5-2: 1992, Telecontrol eq
21、uipment and systems - Par? 5: Transmission protocols - Section 2: Link transmission procedures IEC 870-5-3: 1992, Telecontrol equipment and systems - Part 5: Transmission protocols - Section 3: General structure of application data IEC 870-5-4: 1993, Telecontrol equipment and systems - Part 5: Trans
22、mission protocols - Section 4: Definition and coding of application information elements IEC 870-5-5: 1995, Telecontrol equipment and systems - Part 5: Transmission protocols - Section 5: Basic application functions IEC 870-5-1 O1 : 1995, Telecontrol equipment and systems - Part 5: Transmission prot
23、ocols - Section 101: Companion standard for basic telecontrol tasks ISO/IEC 8482: 1993, Information technology - Telecommunications and information exchange between systems - Twisted pair multipoint interconnections ITU-T V.24: 1994, List of definitions for interchange circuits between data terminal
24、 equipment (DTE) and data circuit-terminating equipment (DE) ITU-T V.28: 1994, Electrical characteristics for unbalanced double-current interchange circuits 3 Definitions For the purpose of this section of IEC 870-5, the following definitions apply. 3.1 companion standard: A companion standard adds
25、semantics to the definitions of the basic standard or a functional profile. 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. NOTE - Companion standards do not alter the st
26、andards to which they refer, but make explicit the relationship between those used together for a specific domain of activity. 3.2 integrated total; counter reading: The integral of a quantity over a time. 3.3 integrated total data terminal equipment: Equipment which updates integrated totals of ene
27、rgy interchange at transfer points of energy flow and presents this information for transmission to remote locations. 3.4 record address of integration period: Identification of particular integration periods. 3.5 date of standard: The date of the release of a companion standard. 3.6 signature: The
28、arithmetic sum modulo 256 over all octets of an integrated total and its associated identification field. STD-BSI BS EN b0870-5-LD2-ENGL 1777 lb2qbb7 0583372 2bD Selected application Information elements of IEC 870-5-4 Selected amlication service data units of IEC 870-5-3 * * I Application (layer 7)
29、 Page 6 EN 60870-6-102 : 1996 Selected link transmission procedures of IEC 870-5-2 Selected transmission frame formats of IEC 870-5-1 Selected ITU-T recommendations 3.7 control direction: The direction of transmission from the controlling station to a controlled station. Link (layer 2) Physical (lay
30、er 1) 3.8 monitor direction: The direction of transmission from a controlled station to the controlling station. 4 Protocol structure The IEC 870-5 protocol is based on the three-layer reference model “ENHANCED PERFORMANCE ARCHITECTURE“ (EPA), as specified in clause 4 of IEC 870-5-3. The physical la
31、yer uses ITU-T recommendations fhat provide binary symmetric and memoryless transmission on the required medium in order to preserve the high level of data integrity of the defined block encoding method in the link layer. The link layer consists of a number of link transmission procedures using expl
32、icit LINK PROTOCOL CONTROL INFORMATION (LPCI) that are capable of carrying APPLICATION SERVICE DATA UNITS (ASDUs) as link-user data. The link layer uses a selection of frame formats to provide the required integrity/efficiency and convenience of transmission. The application layer contains a number
33、of application functions that involve the transmission of ASDUs between source and destination. The application layer of this companion standard does not use explicit APPLICATION PROTOCOL CONTROL INFORMATION (APCI). This is implicit in the contents of the ASDU DATA UNIT IDENTIFIER field and in the t
34、ype of link service used. Figure 1 shows the EPA model and the selected standard definitions of the companion standard. I Selected application functions of IEC 870-5-5 I User process I Figure 1 - Selected standards of this companion standard for transmission of integrated totals STD.BSI BS EN b870-5
35、-LZ-ENGL 1777 m Lb2qbb9 0583393 lT7 m From DCE - X X X X Page 6 EN 60870-5-102 : 1996 To DCE X X X 5 Physical layer 5.1 Selections from IS0 and ITU-T recommendations The following fixed network configurations are supported: - point-to-point; - multiple point-to-point; - multipoint-star; - multipoint
36、-partytine; - dialled point-to-point. The subset of ITU-T recommendations V.24ff.28, defined in 5.1.1, is valid. In case of digital transmission methods using digital signal multiplexers the X.24/X.27 interface may be used for channels up to 64 kbit/s by special agreement (see 5.1.2). In this compan
37、ion standard the data circuit is treated separately from the integrated total data terminal equipment (DTE) because it is often implemented by separate hardware. Consequently the companion standard includes a full specification of the DTE/DCE (data circuit terminating equipment) interface but only a
38、 requirement specification for suitable DCEs is given. 5.1.1 Unbalanced interchange circuit V.24N.28 This companion standard specifies a subset of the ITU-T recommendation V.24, using the signal levels specified by recommendation V.28. Table 1 - Selections from V.24N.28 Interchange circuit number 10
39、2 103 104 105 ) 106 2, 107 2, 108 1) 1 o9 2) Interchange circuit name Slgnal ground or common return Transmitted data Received data Request to send Ready for sending Data set ready Data terminal ready Data channel received line signal detector 1 May have constant potential. 2, Not mandatory. It can
40、be used to supervise the transmission clrcuit. The standard transmission speeds may be specified for the directions of transmission and reception separately. The following choice of standard transmission speeds of the V.24N.28 FSK-interface are supported: 1 O0 bit/s 300 bit/s 1,2 kbit/s 200 bitis 60
41、0 bit/s Page 7 EN 60870-6-102 : 1996 Control i Indication I The standard transmission speeds of the V.24N.28 MODEM-interface are: 1 Signai dement timing Ix 300 bit/s 600 bit/s 1.2 kbit/s 2,4 kbitts 4,8 kbit/s 9,6 kbit/s Data transmission methods that are used to increase the exploitation of the band
42、width of a given transmission channel should be avoided unless it can be proven that the used method (that usually violates the required memoryless channel encoding principle) does not reduce the data integrity of the data block encoding method of the frame format FT 1.2. 5.1.2 Balanced interchange
43、circuit X.24/X.27 Table 2 shows the balanced interchange circuit X.24lX.27 (used synchronously) to digital signal multiplexers. The interface that is operated with symmetric difference signals is suited for 64 kbit/s. Table 2 -Selection from X.24M.27 for Interfaces to synchronous dlgltal signal mult
44、iplexers interchange circuit number (3 T R c 1 I) S Interchange circuit name Signal ground or common return I- Transmit Receive Ix Ix 1) Control and indicatton signals are dispensable if DTEs are connected to the digital signai multiplexer. The signals may. however, be used for supervisory purposes.
45、 The standard transmission speeds may be specified for the directions of transmission and reception separately. The standard transmission speeds are: 2,4 kbit/s 4,8 kbit/s 9,6 kbit/s 19,2 kbit/s 38.4 kbit/s 56 kbit/s 64 kbit/s 5.1.3 Other compatible interfaces * Other interfaces such as IS0 8482 or
46、interfaces to fibre optics, etc, are permitted by agreement between vendor and user. Page 8 EN 60870-5-102 : 1996 6 Link layer The following standards are valid: IEC 870-5-1; IEC 870-5-2. 6.1 Selections from IEC 870-5- 1 (transmission frame formats) This companion standard admits exclusively frame f
47、ormat FT 1.2 that is defined in 6.2.4.2. Formats with fixed and with variable block length are admitted. Also the single control character 1 transmission is admitted. NOTES 1 The rules defined in 6.2.4.2 have to be completely observed. 2 The FT 1.2 frame is basically asynchronous, with the timing of
48、 each constituent 11-bit character, starting with its first bit and stopping with its last bit. However, when used with the synchronous interface, defined in 5.1.2 above, the signai element timing is derived from the DCE and runs continuously. In this case the fmme has to be transmitted and received
49、 isochronously. Frame with variable length Frame with fixed Isngth Single character START 68 H START 68 H I I C I START 10 H C I CHECKSUM I C=mtdneW A = address fi L = length t number of usBr data octets Frame with fixed length := CP32+8a(Start(=l OH),Contrd,Address,Checksum,End(=l6H) This frame is without link user data. Frame with variable length := CP48+8LStart(=68H).Length,Length,Start(=66H),Control,Address, Link user data,Checksum,End(=l6H) Single character 1 := BS818 a L = number of user data Octets = 1 + a + Link user data octets number of Oct
