说明：  IEC62056蓝皮书，描述COSEM对象模型的内容。This seventh edition of the “Blue Book” includes the specification of the COSEM objects and the Object Identification System (OBIS) and is aligned with the contents of:
( draft IEC 62056-61, 13/1341/CDV, Electricity metering – Data exchange for meter reading, tariff and load control – Part 61: OBIS Object identification system draft IEC 62056-62, 13/1342/CDV, Electricity metering – Data exchange for meter reading, tariff and load control – Part 62: Interface classes EN 13757-1:2002, Communication system for meters and remote reading of meters – Part 1: Data exchange. For easier use, in this edition, changes compared to the sixth edition are marked by higlighted text. )