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Overview / excerpts of the DLMS UA coloured books DLMS UA coloured books (password protected area) DLMS/COSEM specification DLMS/COSEM specification maintenance List of proposed amendments Approved Amendments List and maintenance of standard items List of standard OBIS codes and COSEM objects OBIS code maintenance process Requests for adding a new standard OBIS code List and maintenance of standard interface classes

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DLMS/COSEM specification maintenance


The DLMS UA regularly maintains the specification to meet new requirements and to incorporate practical experience gathered by using the specification.

Any user of the DLMS/COSEM specification may propose an amendment.
Proposed amendments are discussed and approved by the Working Group Maintenance.

Approved amendments are regularly added to the DLMS UA coloured books.

IEC and CEN standards are amended according to their maintenance schedule.