1、BRITISH STANDARD BS IEC TR 61334-5-2:1998 IEC 61334-5-2: 1998 Distribution automation using distribution line carrier systems Part 5-2: Lower layer profiles Frequency shift keying (FSK) profile ICS 29.240.20; 33.200; 35.100.05BSIECTR61334-5-2:1998 This British Standard, having been prepared under th
2、e direction of the Electrotechnical Sector Committee, was publishedunder the authority of the Standards Committee and comes into effect on 15 December 1998 BSI 07-1999 ISBN 0 580 30956 8 National foreword This British Standard reproduces verbatimIEC61334-5-2:1998 Technical report type2and implements
3、 it as the UK national standard. A type2report means that it is still under technical development and there is the possibility but not immediately of an agreement on a formal standard. If any reader of this foreword have any suggestions on changes that should be considered could they inform the secr
4、etary of PEL/57. The UK participation in its preparation was entrusted to Technical Committee PEL/57, Power system control and communications, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the inter
5、pretation, 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 secretary. From 1 January 1997, all IEC publications
6、have the number60000added to the old number. For instance,IEC27-1 has been renumbered asIEC60027-1. 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 Attention is drawn to the fact that CEN and
7、 CENELEC standards normally include an annex which lists normative references to international publications with their corresponding or European publications. The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards C
8、atalogue under the section entitled “International Standards Correspondence Index”, or using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their
9、correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theCEI IEC title page, pages ii to vi, pages 1 to 32 and a back cover. This standard has b
10、een updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSIECTR61334-5-2:1998 BSI 07-1999 i Contents Page National foreword Inside front cover Forewor
11、d v Text of CEI IEC 61334-5-2 1ii blankBSIECTR61334-5-2:1998 ii BSI 07-1999 Contents Page Foreword v 1 General 1 1.1 Scope and object 1 1.2 Normative references 1 1.3 Acronyms 1 2 The lower layer profile structure 3 2.1 MAC sublayer 3 2.2 PLS sublayer 3 2.3 MAU 3 3 MAC sublayer 3 3.1 Overview 3 3.2
12、Classes of service 4 3.2.1 Class of service in connection oriented (CO) mode 4 3.2.2 Class of service in connectionless (CL) mode 7 3.3 MAC services 9 3.4 MAC to LLC interfaces 9 3.4.1 MA_Data.request 9 3.4.1.1 Function 9 3.4.1.2 Structure 9 3.4.1.3 Use 9 3.4.2 MA_Data.indication 9 3.4.2.1 Function
13、9 3.4.2.2 Structure 10 3.4.2.3 Use 10 3.4.3 MA_Data.confirm 10 3.4.3.1 Function 10 3.4.3.2 Structure 10 3.4.3.3 Use 10 3.5 MAC to Physical layer interfaces 10 3.6 MAC to Layer Management Interface 10 3.6.1 Function 10 3.6.2 Structure 10 3.6.3 Use 11 3.7 MAC frame format 11 3.8 MAC frame 11 3.9 Eleme
14、nts of the MAC frame 12 3.9.1 Preamble 12 3.9.2 Flag 12 3.9.3 Address 12 3.9.4 Control 12 3.9.4.1 Repetition Style 1 12 3.9.4.2 Repetition Style 2 13 3.9.5 Repetition 15 3.9.6 Information 15 3.9.7 Frame Checking Sequence (FCS) 15 3.10 MAC invalid frame 15 3.11 MAC procedures 15 3.11.1 MACph procedur
15、es 16 3.11.1.1 Transmit a frame 16 3.11.1.2 Receive a frame 16BSIECTR61334-5-2:1998 BSI 07-1999 iii Page 3.11.1.3 Detection of the AC phase delay 16 3.11.2 MACre procedures 16 3.11.3 MAC repetition procedures Style 1 17 3.11.3.1 Service_Class = 1 17 3.11.3.2 Service_Class = 2 18 3.11.4 MAC repetitio
16、n procedures Style 2 19 3.12 Repetition management 21 3.13 MAC state transition 21 3.13.1 State transition table for the operation Style 1 21 3.13.2 State description 23 3.13.3 Event descriptions 23 3.13.4 Actions description 24 3.13.5 Notation used in the transition table 24 4 PLS sublayer 24 4.1 P
17、LS service specification 24 4.1.1 General description of the service 24 4.1.2 Detailed specification of the service 25 4.1.2.1 Ph_Data.request 25 4.1.2.2 Ph_Data.confirm 25 4.1.2.3 Ph_Data.indication 25 4.1.2.4 Ph_ZC.indication 26 4.2 Frame structure and synchronization 26 4.2.1 Frame structure 26 4
18、.2.2 Frame synchronization 26 4.3 MI characteristics 26 4.3.1 General description of the characteristics 26 4.3.2 Detailed description of the signals 27 4.3.2.1 Transmit Data (TD) 27 4.3.2.2 Receive Data (RD) 27 4.3.2.3 Mode Control (MC) 27 4.3.2.4 Bit Clock (BC) 27 4.3.2.5 Zero Crossing (ZC) 27 4.4
19、 Description of the procedures 27 4.4.1 PLS component state descriptions 28 4.4.2 PLS component event descriptions 28 4.4.3 PLS component action descriptions 28 5 MAU 29 5.1 General 29 5.2 General characteristics 29 5.2.1 Modulation rate 29 5.2.2 Frequency range 29 5.2.3 Optional interchange circuit
20、s 30 5.3 MV modem characteristics 30 5.3.1 Nominal input-output impedance 30 5.3.2 Load impedance 30 5.3.3 Nominal signal output power 30 5.3.4 Nominal signal frequency band (BN) 30 5.3.5 Transmission mask 30BSIECTR61334-5-2:1998 iv BSI 07-1999 Page 5.3.6 Carrier stabilization 31 5.3.7 Input sensiti
21、vity 31 5.3.8 Input dynamic range 31 5.3.9 Bit error rate 31 5.3.10 Recovered clock jitter 31 5.4 LV modem characteristics 31 5.4.1 Frequency bands 31 5.4.2 Input-output impedance 31 5.4.3 Load impedance 31 5.4.4 Transmission mask 31 5.4.5 Signal frequency stabilization 31 5.4.6 Input sensitivity 31
22、 5.4.7 Input dynamic range 31 5.4.8 Bit error rate 31 5.4.9 Recovered clock jitter 32 Figure 1 Profile structure 2 Figure 2 Protocol layers in repetition process 4 Figure 3 Service class 0 5 Figure 4 Service class 1 5 Figure 5 Service class 2 6 Figure 6 Service class 1 7 Figure 7 Service class 2 8 F
23、igure 8 Example of the transmitting frame using two repeaters in Service_Class2for both repetition Style1(RSn, where n = 1) and Style2(RSn, where n = 2) 17 Table 1 Initiating station MAC state transition table for the operation Style 1 22 Table 2 End and repeater station MAC state transition table f
24、or the operation Style 1 23 Table 3 PLS component state transitions 29BSIECTR61334-5-2:1998 BSI 07-1999 v Foreword 1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The
25、 object of the IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, the IEC publishes International Standards. Their preparation is entrusted to technical committees; any IEC
26、 National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization for Standardi
27、zation (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has re
28、presentation from all interested National Committees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical reports or guides and they are accepted by the National Committees in that sense. 4) In order to promote intern
29、ational unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in
30、 the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. 6) Attention is drawn to the possibility that some of the elements of this International Standard may be the sub
31、ject of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights. The main task of IEC technical committees is to prepare International Standards. In exceptional circumstances, a technical committee may propose the publication of a technical report of one of
32、 the following types: type 1, when the required support cannot be obtained for the publication of an International Standard, despite repeated efforts; type 2, when the subject is still under technical development or where for any other reason there is the future but no immediate possibility of an ag
33、reement on an International Standard; type 3, when a technical committee has collected data of a different kind from that which is normally published as an International Standard, for example “state of the art”. Technical reports of types1and2are subject to review within three years of publication t
34、o decide whether they can be transformed into International Standards. Technical reports of type3do not necessarily have to be reviewed until the data they provide are considered to be no longer valid or useful. IEC61334-5-2, which is a technical report of type2, has been prepared by IEC technical c
35、ommittee 57: Power system control and associated communications. The text of this technical report is based on the following documents: Committee draft Report on voting 57/272/CDV 57/301/RVCBSIECTR61334-5-2:1998 vi BSI 07-1999 Full information on the voting for the approval of this technical report
36、can be found in the report on voting indicated in the above table. This document is issued in the type2technical report series of publications (according to G.3.2.2 of part 1 of the IEC/ISO Directives) as a “prospective standard for provisional application” in the field of frequency shift keying (FS
37、K) profile for distribution automation using distribution line carrier systems because there is an urgent requirement for guidance on how standards in this field should be used to meet an identified need. This document is not to be regarded as an “International Standard”. It is proposed for provisio
38、nal application so that information and experience of its use in practice may be gathered. Comments on the content of this document should be sent to the IEC Central Office. A review of this type2technical report will be carried out not later than three years after its publication, with the options
39、of extension for a further three years or conversion to an International Standard or withdrawal.BSIECTR61334-5-2:1998 BSI 07-1999 1 1 General 1.1 Scope and object This technical report of type2describes a lower layer profile that includes the medium access control (MAC) sublayer, the physical signal
40、ling (PLS) sublayer and the mains attachment units (MAU), with the purpose of giving a contribution to build up a set of standards for effective communication on MV and LV network for distribution line carrier (DLC) systems. This profile uses the FSK modulation technique that offers the advantages o
41、f low cost implementation, robustness and immunity against noise and interferences. Furthermore, the transmission quality is predictable knowing few parameters of the transmission medium. Using standard electrical signal interface to the modem, the profile is effective for different modulation techn
42、iques. Different technical approaches in developing communication for DLC systems are in progress. As a consequence, at present different low level profiles are feasible with acceptable results in terms of performance and cost-effectiveness. In many cases, the differences amongst solutions are minor
43、 and it is possible to find a common root. This report describes a low level profile that assembles some common experience. According to the structure of the open system interconnection model, the low level profile should present a standard interface to the logical link control (LLC) sublayer and co
44、nsists of sublayers such as the MAC sublayer, PLS and MAU, that present well-defined interface to each other. The MAC sublayer here described interfaces both the LLC connectionless (CL) (seeIEC61334-4-32) and the LLC connection oriented (CO) (seeIEC61334-4-33). The use of the MAC in the two cases is
45、 different due to the frame length and the frame sequence on the medium. To improve the efficiency of the communication, different classes of service are given. The proper use of the class of service and related parameters allow users control of the transfer and waiting time of the processes involve
46、d in the transmission. 1.2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part ofIEC61334. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, a
47、nd parties to agreements based on this part ofIEC61334 are encouraged to investigate 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 60495:1993, Single sideband
48、power-fine carrier terminals. IEC 61334-3-1:, Distribution automation using distribution line carrier systems Part 3-1: Mains signalling requirements Frequency bands and output levels 1) . IEC 61334-3-21:1996, Distribution automation using distribution line carrier systems Part 3-21: Mains signallin
49、g requirements MV phase-to-phase isolated capacitive coupling device. IEC 61334-4-32:1996, Distribution automation using distribution line carrier systems Part 4-32: Data communication protocols Data link layer Logical link control (LLC). IEC 61334-4-33:, Distribution automation using distribution line carrier systems Part 4-33: Data communication protocols Data link layer Logical link control Connection oriented protocol 1) . ISO/IEC 3309:1993, Information technology Telecommunications and information exchange bet
