IEC TC57 WG9
Distribution automation using DLC systems - (disbanded)
The two for the DLMS User Association most relevant documents have reached the status of International Standards. Both were created by WG9.
IEC 61334-4-41, 1996-03, Distributed Automation Using Distribution Line Carrier Systems
Part 4: Data Communication Protocols;
Section 4: Application Protocol;
Clause 1: Distribution Line Message Specification (DLMS)
IEC 61334-6 (2000-06), Distribution automation using distribution line carrier systems
Part 6: A-XDR encoding rule: Defines a set of encoding rules that may be used to derive the specification of a transfer syntax for values of types defined in the DLMS core standard using the ASN.1 notation (see IEC 61334-4-41).
Excerpts of the documents can be viewed by members of the DLMS UA (password required). The standards can be ordered online at www.iec.ch (Webstore).