Thermal energy meters - Part 3: Data exchange and interfaces

This document specifies the general requirements and applies to thermal energy meters. Thermal energy meters are instruments intended for measuring 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 applications using the optical readout head, the EN 62056-21 protocol is recommended.
For networks with up to 250 meters, a master unit with AC 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 mobile station or by using stationary receivers or a network. Both unidirectionally and bidirectionally transmitting meters are supported by this standard.

Thermische Energiezähler - Teil 3: Datenaustausch und Schnittstellen

Compteurs d'énergie thermique - Partie 3 : Échange de données et interfaces

Merilniki toplote - 3. del: Izmenjava podatkov in vmesniki

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oSIST prEN 1434-3:2023
SIST EN 1434-3:2016
Merilniki toplote - 3. del: Izmenjava podatkov in vmesniki
Thermal energy meters - Part 3: Data exchange and interfaces
Thermische Energiezähler - Teil 3: Datenaustausch und Schnittstellen
Compteurs d'énergie thermique - Partie 3 : Échange de données et interfaces
Ta slovenski standard je istoveten z: prEN 1434-3
17.200.10 Toplota. Kalorimetrija Heat. Calorimetry
oSIST prEN 1434-3:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 1434-3:2023

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oSIST prEN 1434-3:2023

prEN 1434-3


August 2023
ICS Will supersede EN 1434-3:2015
English Version

Thermal energy meters - Part 3: Data exchange and
Compteurs d'énergie thermique - Partie 3 : Échange de Thermische Energiezähler - Teil 3: Datenaustausch und
données et interfaces Schnittstellen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 294.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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 notified 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.



CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1434-3:2023 E
worldwide for CEN national Members.

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oSIST prEN 1434-3:2023
prEN 1434-3:2023(E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Meter interfaces and protocols overview . 4
5 Physical layer . 5
5.1 General. 5
5.2 Physical layer optical interface . 5
5.3 Physical layer M-Bus . 5
5.4 Physical layer wireless interface. 5
6 Link layer . 5
6.1 Link layer optical interface . 5
6.1.1 Link layer optical interface with the EN 13757-2 protocol . 5

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