Electricity metering data exchange - The DLMS/COSEM suite - Part 6-2: COSEM interface classes (IEC 62056-6-2:2016); English version EN 62056-6-2:2016— 332 стр.
Electricity metering data exchange - The DLMS/COSEM suite -- Part 7-5: Local data transmission profiles for Local Networks (LN) (IEC 62056-7-5:2016) (english version)