DIN EN 1434-3-2009 量热计.第3部分:数据交换和接口

标准号：DIN EN 1434-3-2009
中文标准名称：量热计.第3部分:数据交换和接口
英文标准名称：Heat meters - Part 3: Data exchange and interfaces; English version EN 1434-3:2008
标准类型：N11
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：N11
国际标准分类号：17.200.10
引用标准：EN 13757-1;EN 13757-2-2004;EN 13757-3-2004;EN 13757-4-2005;EN 13757-5;EN 13757-6;EN 62056-21-2002
适用范围：This European Standard applies to heat meters, that is to instruments intended for measuring the heat which,in a heat-exchange circuit, is absorbed or given up by a liquid called the energy-conveying liquid. The meterindicates heat in legal units.Electrical safety requirements are not covered by this standard.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 direct or remote local readout of a single or a few meters via a battery driven readout device, the physicallayer of EN 13757-6 (local bus) is recommended.For bigger networks with up to 250 meters, a master unit with AC mains supply according to EN 13757-2 isnecessary to control the M-Bus. For these applications the physical and link layer of EN 13757-2 and theapplication layer of EN 13757-3 is required.For wireless meter communications, EN 13757-4 describes several alternatives of walk/drive-by readout via amobile station or by using stationary receivers or a network. Both unidirectionally and bidirectionally transmittingmeters are supported by this standard.