具有互操作性的新一代电能表通信协议标准

为方便电能量计量计费系统集成、维护及保护投资，需要实现电能表通信的互操作性，而其关键在于制定具有互操作性的电能表通信协议标准。为此DLMS用户协会基于面向对象技术提出了一种新的电能表通信协议DLMS／COSEM，它是目前唯一适用于不同的制造厂家、仪表型号、通信信道并能满足电能表全部应用的具有互操作性的通信协议，该协议已经由国际电工委员会采纳作为IEC62056国际标准，所有厂家只有共同遵循DLMS/COSEM，才能最终实现电能表通信的互操作性。文中介绍了其概念、体系结构、实现互操作性的关键技术、一致性测试认证以及与其他通信协议的区别，并给出了应用实例。

A new generation communication protocol standard with interoperability for energy meter

For the convenience of system integration and maintenance, for the purpose of securing investment, it is necessary to realize the interoperability of communication for energy meter, and the critical issue is to establish a communication protocol standard with interoperability for energy meter.DLMS User Association then developed a new communication protocol_DLMS/COSEM,which based on the object-oriented technology.It is by now the only one protocol with interoperability for all applications, and is independent of the manufacturer, the meter type and the communication media.DLMS/COSEM has been standardized as IEC 62056 series of standards.It is believed that only all the manufacturers comply with DLMS/COSEM can interoperability of communication for energy meter be achieved finally.This article introduces its concept, system structure, the key technologies supporting interoperability, the conformance test and the difference compared with other protocols, and also gives some use cases.