1、February 2016 English price group 16No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 17.200.10!%LSK“2414840www.din.d
2、eDIN EN 1434-3Heat meters Part 3: Data exchange and interfaces;English version EN 1434-3:2015,English translation of DIN EN 1434-3:2016-02Wrmezhler Teil 3: Datenaustausch und Schnittstellen;Englische Fassung EN 1434-3:2015,Englische bersetzung von DIN EN 1434-3:2016-02Compteurs dnergie thermique Par
3、tie 3: Echange de donnes et interfaces;Version anglaise EN 1434-3:2015,Traduction anglaise de DIN EN 1434-3:2016-02SupersedesDIN EN 1434-3:2009-01www.beuth.deDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.Document comprises 35 page
4、s 02.16 DIN EN 1434-3:2016-02 2 A comma is used as the decimal marker. National foreword This document (EN 1434-3:2015) has been prepared by Technical Committee CEN/TC 294 “Communication systems for meters” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-
5、Normenausschuss Heiz- und Raumlufttechnik (DIN Standards Committee Heating and Ventilation Technology), Working Committee NA 041-03-66 AA Kommunikationssysteme fr Zhler (SpA CEN/TC 294). Amendments This standard differs from DIN EN 1434-3:2009-01 as follows: a) a German version has been prepared; b)
6、 normative references have been updated; c) Table 1 “Possible combinations of interfaces and standards” has been updated; d) explanations to Table B.1 “Values for “UU”, register codes” have been added. Previous editions DIN EN 1434-3: 1997-04, 2009-01 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NOR
7、M EN 1434-3 December 2015 ICS 17.200.10 Supersedes EN 1434-3:2008English Version Heat meters - Part 3: Data exchange and interfaces Compteurs dnergie thermique - Partie 3 : change de donnes et interfaces Wrmezhler - Teil 3: Datenaustausch und Schnittstellen This European Standard was approved by CEN
8、 on 27 September 2015. CEN 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 standar
9、ds may be obtained on application to the CEN-CENELEC Management Centre or to any CEN 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 CEN member into its own language and noti
10、fied to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Ic
11、eland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Man
12、agement Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1434-3:2015 EEN 1434-3:2015 (E) 2 Contents Page European foreword . 4 1 Scope 5 2 Normative references 5 3 Meter interfaces and
13、protocols overview 6 4 Physical layer 6 4.1 General 6 4.2 Physical layer optical interface 6 4.3 Physical layer M-Bus 6 4.4 Physical layer wireless interface . 6 4.5 Physical layer current loop interface. 7 4.6 Physical layer Local Bus 7 5 Link layer . 7 5.1 Link layer optical interface 7 5.2 Link l
14、ayer of M-Bus and Local Bus 7 5.3 Link layer wireless interface 7 5.4 Link layer current-loop interface 7 6 Application layer . 8 6.1 Application layer optical interface . 8 6.2 Application layer M-Bus and Local Bus . 9 7 Application 9 7.1 General 9 7.2 Physical layer 9 7.3 Link layer . 9 7.4 Applic
15、ation layer . 9 7.5 Control applications . 9 Annex A (informative) Recommendation for heat meter test interface . 10 Annex B (informative) Additional information for heat meters 11 B.1 Additional information regarding the EN 62056-21 protocol . 11 B.2 Data set 11 B.3 Coding of the data set identific
16、ation number . 12 Annex C (informative) Automatic protocol detection and wake-up for the optical interface . 21 C.1 Introduction . 21 C.2 Trying EN 13757-2 protocol . 21 C.3 Trying the EN 62056-21 protocol . 21 Annex D (informative) Usage of heat meters in control applications 23 D.1 Heat meter 23 D
17、.2 Controller 24 Annex E (informative) Protection techniques for M-Bus meters against surge/lightning . 26 DIN EN 1434-3:2016-02 EN 1434-3:2015(E)3 Annex F (informative) Additional information about the master-unit for the M-Bus 30 F.1 Master side interface to the M-Bus . 30 F.2 Master side interfac
18、e for local data read out 30 F.3 Full size level converter . 31 Bibliography . 33 DIN EN 1434-3:2016-02 EN 1434-3:2015 (E) 4 European foreword This document (EN 1434-3:2015) has been prepared by Technical Committee CEN/TC 294 “Communication systems for meters”, the secretariat of which is held by DI
19、N. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2016, and conflicting national standards shall be withdrawn at the latest by June 2016. Attention is drawn to the possibility that some of t
20、he elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1434-3:2008. The following significant editorial changes compared to the previous edition have been incorporat
21、ed in this European Standard: a) update of normative references; b) update of Table 1 “Possible combinations of interfaces and standards”; c) addition of explanations to Table B.1 “Values for “UU“, register codes”. EN 1434 consists of the following parts, under the general title “Heat meters“: Part
22、1: General requirements Part 2: Constructional requirements Part 4: Pattern approval tests Part 5: Initial verification tests Part 6: Installation, commissioning, operational monitoring and maintenance According to the CEN/CENELEC Internal Regulations, the national standards organizations of the fol
23、lowing countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
24、 Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 1434-3:2016-02 EN 1434-3:2015(E)5 1 Scope This European Standard specifies the general requirements and applies to heat meters. Heat meters are instruments intended for measuring
25、 the energy which in a heat-exchange circuit is absorbed (cooling) or given up (heating) by a liquid called the heat-conveying liquid. The meter indicates heat in legal units. Part 3 specifies the data exchange between a meter and a readout device (POINT / POINT communication). For these application
26、s using the optical readout head, the EN 62056-21 protocol is recommended. For direct or remote local readout of a single or a few meters via a battery driven readout device, the physical layer of EN 13757-6 (local bus) is recommended. For bigger networks with up to 250 meters, a master unit with AC
27、 mains supply according to EN 13757-2 is necessary to control the M-Bus. For these applications the physical and link layer of EN 13757-2 and the application layer of EN 13757-3 is required. For wireless meter communications, EN 13757-4 describes several alternatives of walk/drive-by readout via a m
28、obile station or by using stationary receivers or a network. Both unidirectionally and bidirectionally transmitting meters are supported by this standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its ap
29、plication. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13757-2, Communication systems for meters and remote reading of meters Part 2: Physical and link layer EN 13757-3:2013, Commun
30、ication systems for meters and remote reading of meters Part 3: Dedicated application layer EN 13757-4, Communication systems for meters and remote reading of meters Part 4: Wireless meter readout (Radio meter reading for operation in SRD bands) EN 13757-6, Communication systems for meters Part 6: L
31、ocal Bus EN 62056-21:2002, Electricity metering Data exchange for meter reading, tariff and load control Part 21: Direct local data exchange (IEC 62056-21:2002) DIN EN 1434-3:2016-02 EN 1434-3:2015 (E) 6 3 Meter interfaces and protocols overview Table 1 Possible combinations of interfaces and standa
32、rds Hardware interface type Recommended standard Alternative standards Optical EN 62056-21:2002, 3.2 EN 13757-2 EN 62056-21:2002, 4.1 M-Bus EN 13757-2 No alternative Wireless EN 13757-4 and EN 13757-5 No alternative Current loop EN 62056-21:2002, 3.1 No alternative Local Bus EN 13757-6 No alternativ
33、e Application layer (All interfaces) EN 13757-3 EN 13757-1 4 Physical layer 4.1 General A meter can have either none or a number of interfaces to communicate with the outside world. If a meter has an interface in accordance with this standard, it shall fulfil at least one of the following requiremen
34、ts for the physical layer. 4.2 Physical layer optical interface The optical interface is used for local data readout. A hand held unit, equipped with an optical readout head, is temporarily connected to one heat meter and the data is read out, one heat meter at a time. The physical properties of the
35、 optical interface are defined in EN 62056-21. 4.3 Physical layer M-Bus The physical layer of the M-Bus is described in EN 13757-2. It can be used for “point to point“ or for “multi-point“ communication in bus systems. If a heat meter presents more than one unit load to the bus, the number of unit l
36、oads has to be shown on the meter documentation as “xUL” where x is the number of unit loads. Only integer values are allowed. Especially in extended installation, meters with an M-Bus interface might need additional protection against surge and lightning. Annex E shows various techniques for either
37、 constructing meters with an M-bus interface and integrated enhanced protection elements. In addition, it shows how to construct external protection elements for meters with a standard (unprotected) M-Bus interface. Two variants are given: one (preferred) for situation where a ground connection is a
38、vailable and a variant with weaker protection if no ground connection is available. An enhanced version of the protection additionally protects the meter and its interface from destruction if mains power is connected to the M-Bus terminals of the meter. If the readout frequency of the meter is limit
39、ed either by software or by the battery capacity, the meter documentation shall signal the readout frequency as “x per day”, “y per h” or “z per min” where x, y or z are the number of readouts within the corresponding period allowed by the software without impairing the battery lifetime. Heat meters
40、 with unlimited readout frequency do not need such information. 4.4 Physical layer wireless interface The physical layer wireless interface shall be according to EN 13757-4. DINEN 1434-3:2016-02EN 1434-3:2015 (E) 7 4.5 Physical layer current loop interface Type of signal: 20 mA (CL interface in acco
41、rdance with EN 62056-21:2002, 4.1 with galvanic separation). Power supply: on the heat meter side, the interface shall be passive. The readout device supplies the necessary power. Connections: via terminals or suitable connectors. 4.6 Physical layer Local Bus The Local Bus is an alternative to the M
42、-Bus. It is restricted to small installations (Mini installation/ meter cluster according to EN 13757-2) and optimized for special battery-driven masters. It does not support meter power supply from the bus. Note that this interface is not compatible with M-Bus masters according to EN 13757-2. Its p
43、hysical layer is described in EN 13757-6. 5 Link layer 5.1 Link layer optical interface 5.1.1 Link layer optical interface with the EN 13757-2 protocol If the optical interface is used with the EN 13757-2 protocol, a wake-up message can be sent after every idle time of 330 bit times to the heat mete
44、r. The wake up message consists of zeroes and ones alternating at the desired baud rate for a duration of (2,2 0,1) s. After an idle time of 33 bit times to 330 bit times, the communication can start. 5.1.2 Link layer optical interface with the EN 62056-21 protocol The link layer optical interface s
45、hall be according to EN 62056-21. 5.1.3 Link layer optical interface with automatic protocol recognition If the user or the handheld unit does not know which of the two alternative protocols a meter uses, it is suggested to use a combined wake-up and recognition sequence as described in the informat
46、ive Annex C. 5.2 Link layer of M-Bus and Local Bus The link layer of the M-Bus and the Local Bus is described in EN 13757-2. All required functions shall be implemented in a heat meter with an M-Bus or Local Bus connector. If the readout frequency of the meter is limited either by software or by the
47、 battery capacity, the meter documentation shall signal the readout frequency as “x per day”, “y per h” or “z per min” where x, y or z are the number of readouts within the corresponding period allowed by the software without impairing the battery lifetime. Heat meters with unlimited readout frequen
48、cy do not need such information. 5.3 Link layer wireless interface The link layer wireless interface shall be according to EN 13757-4. 5.4 Link layer current-loop interface The link layer current-loop interface shall be according to EN 62056-21:2002, Clause 4 to Clause 5. DIN EN 1434-3:2016-02 EN 14
49、34-3:2015 (E) 8 6 Application layer 6.1 Application layer optical interface 6.1.1 Protocol modes according to EN 13757-3 for heat meters Further details are given in the section on the application layer of the M-Bus. 6.1.2 Protocol modes according to EN 62056-21 for heat meters 6.1.2.1 General This protocol may be used for the optical interface. The basic rules of the protocol are defined in EN 62056-21. Annex B of that document deals with battery operated devi
