Abstract

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.

Begin

2022-07-04

WI

00294030

Planned document number

DIN EN 1434-3

Project number

04112125

Responsible national committee

NA 041-03-66 AA - Communication systems for meters (Mirror committee CEN/TC 294)  

Responsible european committee

CEN/TC 294/WG 4 - Data exchange for meters on M-Bus systems  

draft standard

Thermal energy meters - Part 3: Data exchange and interfaces; German and English version prEN 1434-3:2023
2023-09
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previous edition(s)

Heat meters - Part 3: Data exchange and interfaces; German version EN 1434-3:2015
2016-02

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