IEC62056绿皮书，包括通信协议、通信规程等内容。This fifth edition of the "Green Book" includes the specification of the communication protocol

layers based on:-

IEC 62056-42, Electricity metering- Data exchange for meter reading, tariff and load control- Part

42: Physical layer services and procedures for connection-oriented asynchronous data exchange

IEC 62056-46 Ed 1.0, Electricity metering- Data exchange for meter reading, tariff and load control

- Part 46: Data link layer using HDLC protocol, as amended by 13/1336/CDV, draft Amendment 1

draft IEC 62056-47 Ed.1.0, 13/1337/CDV, Electricity metering- Data exchange for meter reading,

tariff and load control- Part 47: COSEM transport layers for IPv4 networks

draft IEC 62056-53 ed. 2.0, 13/1338/CDV, Electricity metering- Data exchange for meter reading,

tariff and load control- Part 53: COSEM application layer

Annex E of IEC 62056-21, Electricity metering- Data exchange for meter reading, tariff and load

control Part 21: Direct local data exchange, is incorporated (Clause 6).

For easier use, in this edition, changes compared to Edition 4 are marked by highlighted text.