This part of IEC 62056 specifies the transport layers for COSEM communication profiles for use on IPv4 networks. These communication profiles contain a connection-less and a connection-oriented transport layer,providing OSI-style services to the service user COSEM application layer.The connection-less transport layer is based on the Internet standard Transmission Control Protocol. Although the major part of the COSEM transport layers is the UDP and TCP as they are specified in the relevant Internet standards,they include an additional sub-layer,called wrapper. Annex A shows how the OSI-style transport layer services can be converted to and from UDP and TCP function calls.
DIN EN 62056-47-2007由德国标准化学会 DE-DIN 发布于 2007-06,并于 2007-06-01 实施。
DIN EN 62056-47-2007 在中国标准分类中归属于: N22 电能测量和负荷控制系统,在国际标准分类中归属于: 35.100.40 传输层,91.140.50 供电系统。
DIN EN 62056-47-2007 电度表.电表读数、计价和负荷控制的数据交换.第47部分:IPv4网络用COSEM传输层 于 2017-07 变更为 DIN EN 62056-4-7-2017 电力计量数据交换.DLMS/COSEM套件.第4-7部分:IP网络用DLMS/COSEM传输层(IEC 62056-4-7-2015);英文版本EN 62056-4-7-2016。
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