1、BRITISH STANDARD BS EN 61334-5-1:2001 IEC 61334-5-1:2001 Distribution automation using distribution line carrier systems Part 5-1: Lower layer profiles The spread frequency shift keying (S-FSK) profile. The European Standard EN 61334-5-1:2001 has the status of a British Standard ICS 33.200 NO COPYIN
2、G WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 61334-5-1:2001 This British Standard, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 17 Octob
3、er 2001 BSI 17 October 2001 ISBN 0 580 38550 7 National foreword This British Standard is the official English language version of EN 61334-5-1:2001. It is identical with IEC 61334-5-1:2001. It supersedes BS IEC 61334-5-1:1996 which is withdrawn. The UK participation in its preparation was entrusted
4、 to Technical Committee PEL/57, Power system control and associated communications, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old num
5、ber. 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 identifiers from both systems. Cross-references The British Standards which implement international or European publications re
6、ferred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of
7、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. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation,
8、 or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 63, and a back cover. The BSI copyright da
9、te displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 61334-5-1 NORME EUROPENNE EUROPISCHE NORM July 2001 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation
10、 Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61334-5-1:2001 E ICS 33.200 English version Distrib
11、ution automation using distribution line carrier systems Part 5-1: Lower layer profiles The spread frequency shift keying (S-FSK) profile (IEC 61334-5-1:2001) Automatisation de la distribution laide de systmes de communication courants porteurs Partie 5-1: Profils des couches basses - Profil S-FSK (
12、modulation par saut de frquences tales) (CEI 61334-5-1:2001) Verteilungsautomatisierung mit Hilfe von Trgersystemen auf Verteilungsleitungen Teil 5-1: Profile der unteren Schichten - Profil fr erweiterte Frequenz- sprungmodulation (S-FSK) (IEC 61334-5-1:2001) This European Standard was approved by C
13、ENELEC on 2001-06-01. 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 stan
14、dards 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 not
15、ified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Swede
16、n, Switzerland and United Kingdom.EN 61334-5-1:2001 - 2 - Foreword The text of document 57/512/FDIS, future edition 2 of IEC 61334-5-1, prepared by IEC TC 57, Power system control and associated communications, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61334-5-
17、1 on 2001-06-01. 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) 2002-03-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2004
18、-06-01 Annexes designated “normative“ are part of the body of the standard. In this standard, annexes A and ZA are normative. Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61334-5-1:2001 was approved by CENELEC as a European Standard without any
19、modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 61334-4-41:1996 NOTE: Harmonized as EN 61334-4-41:1996 (not modified). IEC 61334-4-42:1996 NOTE: Harmonized as EN 61334-4-42:1996 (not modified). _ Page2 EN6133451:2001 BSI1
20、7October200161334-5-1 IEC:2001 3 CONTENTS 1 General . 5 1.1 Scope and object 5 1.2 Normative references . 5 1.3 Definitions 6 2 Modulation. 6 2.1 Purpose 6 2.2 Spread frequency shift keying (S-FSK) principle . 6 2.3 Spreading. 8 2.4 Performance tests 8 2.4.1 Purpose 8 2.4.2 White noise BER tests 8 2
21、.4.3 Narrowband interferer BER tests. 9 2.4.4 Impulsive noise BER tests 9 3 Physical layer 9 3.1 Purpose 9 3.2 Transmission method 9 3.2.1 Coding 9 3.2.2 Bit timing 9 3.2.3 Frame timing10 3.2.4 Slot timing .10 3.3 Packet encapsulation.10 3.3.1 Purpose.10 3.3.2 Byte and bit ordering10 3.3.3 Preamble
22、and start subframe delimiter.11 3.3.4 Pause 11 3.4 Physical layer services definitions .11 3.4.1 General description11 3.4.2 P_Data.request12 3.4.3 P_Data.confirm13 3.4.4 P_Data.indication.13 3.4.5 P_Sync.request .14 3.4.6 P_Sync.indication 14 3.5 Sending and receiving physical sublayer .15 3.5.1 Se
23、nding .15 3.5.2 Receiving.15 3.5.3 Synchronization desynchronization of a server16 3.5.4 Physical state transition tables.17 3.5.5 Transition table description18 Page3 EN6133451:2001 BSI17October200161334-5-1 IEC:2001 4 4 Medium access control sublayer (MAC) 23 4.1 MAC service specification23 4.1.1
24、Purpose.23 4.1.2 Characteristics.23 4.1.3 Overview of the services23 4.1.4 MA_Data.request.24 4.1.5 MA_Data.confirm .25 4.1.6 MA_Data.indication26 4.1.7 MA_Sync.indication .27 4.2 MAC frame structure28 4.2.1 Frame indicator29 4.2.2 Long MAC frame format.29 4.2.3 Elements of the long MAC frame33 4.2.
25、4 Invalid long MAC frame38 4.3 Medium access control method38 4.3.1 Functional model .38 4.3.2 Transmission description .39 4.3.3 Reception description 39 4.3.4 MAC management description .39 4.3.5 Formal specification.39 4.3.6 Medium access state table.40 4.3.7 Transition table description49 Annex
26、A (normative) Description of error values .60 Annex ZA (normative) Normative references to international publications with their corrisponding European publications.63 Bibliography62 Figure 1 Quality “space“ similar to quality “mark“ 7 Figure 2 Quality “mark“ much better than quality “space“ 7 Figur
27、e 3 Time slot and physical frame structure .10 Figure 4 P_Data services .12 Figure 5 Relationship with reference model23 Figure 6 MA_Data service primitives 24 Figure 7 MAC subframe format.29 Figure 8 Long MAC frame made of one subframe only .30 Figure 9 Long MAC frame made of two subframes .31 Figu
28、re 10 Long MAC frame made of more than two subframes.32 Table 1 Maximum E b /N 0allowed to achieve a given BER 9 Table 2 Server physical layer transition table .17 Table 3 Client physical layer transition table 18 Table 4 Encoding and decoding of the NS field 36 Table 5 Value of the PL field 36 Tabl
29、e 6 MAC server state transition tables .41 Table 7 MAC client state transition table 47 Table 8 Server and client MAC management variables used in the S-FSK profile.5261334-5-1 IEC:2001 5 DISTRIBUTION AUTOMATION USING DISTRIBUTION LINE CARRIER SYSTEMS Part 5-1: Lower layer profiles The spread freque
30、ncy shift keying (S-FSK) profile 1 General 1.1 Scope and object This part of IEC 61334 describes the requirements of S-SFK (frequency shift keying modulation) in conjunction with the services provided by the physical layer entity and the MAC sublayer. The transmission medium is assumed to be the dis
31、tribution network on both MV or LV level. The MAC sublayer described in this standard interfaces with the logical link control layer described in IEC 61334-4-32. The three parts modulation, physical layer and MAC sublayer are matched to each other so that an optimum cost-performance relation can be
32、achieved. The profile described in this standard is one of several profiles (described in series IEC 61334-5) which are all designed for data transmission via the distribution network. Considering the ongoing technical development in this field, the profiles are published first as technical specific
33、ations with the intention to transform into standards those profiles which are successful in practice. 1.2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 61334. For dated references, subsequen
34、t amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of IEC 61334 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest e
35、dition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards. IEC/TR 61334-1-4:1995, Distribution automation using distribution line carrier systems Part 1: General considerations Section 4: Identification of data transmis
36、sion parameters concerning medium and low voltage distribution mains IEC 61334-4-1:1996, Distribution automation using distribution line carrier systems Part 4: Data communication protocols Section 1: Reference model of the communication system IEC 61334-4-32:1996, Distribution automation using dist
37、ribution line carrier systems Part 4: Data communication protocols Section 32: Data link layer Logical link control (LLC) Page5 EN6133451:2001 BSI17October200161334-5-1 IEC:2001 6 IEC 61334-4-511:2000, Distribution automation using distribution line carrier systems Part 4-511: Data communication pro
38、tocols Systems management CIASE protocol IEC 61334-4-512, Distribution automation using distribution line carrier systems Part 4-512: Data communication protocols Systems management using profile 61334-5-1 MIB 1) ISO/IEC 7498-1:1994, Information technology Open Systems Interconnection Basic Referenc
39、e Model The Basic Model ISO/IEC 7498-3:1997, Information technology Open Systems Interconnection Basic Reference Model Naming and addressing EN 50065-1:1991, Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz Part 1: General requirements, frequency bands and
40、 electromagnetic disturbances 1.3 Definitions For the purpose of this part of IEC 61334, the definitions of ISO/IEC 7498-1 and EN 50065-1 apply. 2 Modulation 2.1 Purpose S-FSK is a modulation and demodulation technique which combines some of the advantages of a classical spread spectrum system (for
41、example, immunity against narrowband interferers) with the advantages of a classical FSK system (low-complexity, well-investigated imple- mentations). 2.2 Spread frequency shift keying (S-FSK) principle The transmitter assigns the space frequency f Sto “data 0“ and the mark frequency f M to “data 1“
42、. The difference between S-FSK and the classical FSK lies in the fact that f S and f M are now placed far from each other (spreading). By placing the signal for “space“ far from the signal for “mark“, their transmission quality becomes independent (the strengths of the small-band interferences and t
43、he signal attenuations are both independent at the two frequencies). The receiver performs conventional FSK demodulation at the two possible frequencies (the half-channels) resulting in two demodulated signals d Sand d M . If the average reception quality of the two half-channels is similar (see fig
44、ure 1), then the decision unit decides on the higher of the two demodulated channels (“data 0“ if d S d M , “data 1“ if d S d M ). If, however, the average reception quality of one half-channel is significantly better than the quality of the other half-channel (see figure 2), then the decision unit
45、compares the demodulated signal of the better channel with a threshold T, thus ignoring the worse channel. The quality measurements and the threshold computation may be based on a predefined preamble which precedes the transmission of the actual data frame. _ 1)To be published. Page6 EN6133451:2001
46、BSI17October200161334-5-1 IEC:2001 7 Signal “mark“ f M Signal “space“ Frequency Noise level for “space“ similar to noise level for “mark“ RECEIVER Decision unit Data “1“ Data “0“ “Space“ demodulator d S Threshold Signal “mark“ f M Signal “space“ Frequency Noise level for “space“ much higher than for
47、 “mark“ f S RECEIVER “Space“ demodulator d S “Mark“ demodulator d M d M Figure 2 Quality “mark“ much better than quality “space“ IEC 463/01 IEC 464/01 Page7 EN6133451:2001 BSI17October200161334-5-1 IEC:2001 8 2.3 Spreading The values for the absolute frequency deviation f M f S should be such that t
48、he signal transmission qualities at f M and at f Sare independent of each other. Taking into account the measurements presented in IEC 61334-1-4, it is recommended that f M f S 10 kHz be used. f M and f S shall be situated in the frequency band defined in EN 50065-1. 2.4 Performance tests 2.4.1 Purp
49、ose The quality of the implementation is guaranteed by different performance tests. The tests can be performed under laboratory conditions and shall be reproducible. The BER (bit error rate) measurements are made by transmitting a preamble, a frame delimiter followed by a block of 38 bytes of data. It is assumed that no frame synchronization errors are encoun
