The purpose of the FLAG ID is to uniquely identify the manufacturer of communicating equipment as specified in the DLMS UA Blue Book and Green Book, and other relevant standards.
FLAG IDs are assigned and maintained by the DLMS User Association.
FLAG IDs are used for electricity, gas, heat and water metering systems in conjunction with one or more of the following standards for meter data exchange; new standards may be added in the future.
ABC = aBC, AbC, ABc, abC, aBc, Abc, abc.
A FLAG ID consists of three upper case letters taken from the ISO basic Latin alphabet (26 letters).
17 576 FLAG IDs are available. With a growing number of manufacturers and usages, DLMS UA applies strict control over FLAG ID registrations and allocates sparingly FLAG IDs.
DLMS UA will allocate the FLAG ID and it will include any combination of the three letter sequence registered in upper case and lower case e.g. the registration of ABC implies the registration of aBC, AbC, ABc, abC, aBc, Abc, abc.
Company registration number CHE-440.972.101
Baarerstrasse 38
CH-6300 Zug
Switzerland