DIN EN 61334-4-41:1997-09

INTRODUCTION
1 Scope
2 Normative references
3 Definitions
    3.1 Reference model definitions
    3.2 Service convention definitions
    3.3 Other definitions
    3.4 Abbreviations
    3.5 Conventions
4 Virtual distribution equipment
    4.1 Relationship of the VDE to the OSI model
    4.2 Relationship with a real distribution device
    4.3 Structure of a VDE
    4.4 Specification of DLMS objects
    4.5 Conformance description
5 Context management services
    5.1 Introduction
    5.2 Initiate service
    5.3 Abort service
6 VDE support services
    6.1 Virtual distribution equipment description
    6.2 GetStatus service
    6.3 GetNameList service
7 Data set management services
    7.1 Data set description
    7.2 InitiateLoad service
    7.3 LoadSegment service
    7.4 TerminateLoad service
    7.5 InitiateUpload service
    7.6 UploadSegment service
    7.7 TerminateUpload service
    7.8 GetDataSetAttribute service
8 VAA management service
    8.1 VAA description
    8.2 ChangesScope service
9 Task invocation management services
    9.1 Task invocation description
    9.2 Start service
    9.3 Stop service
    9.4 Resume service
    9.5 MakeUsable service
    9.6 GetTIAttribute service
10 Variable access services
    10.1 Variable model description
    10.2 Specification of types
    10.3 Specification of data values
    10.4 Read service
    10.5 Write service
    10.6 UnconfirmedWrite service
    10.7 InformationReport service
    10.8 GetVariableAttribute service
Figures
Annexes
A DLMS protocol
    A.1 Conventions
    A.2 Useful types
    A.3 DLMS PDUS
    A.4 Service requests and responses
    A.5 Service error
    A.6 Object name
    A.7 Context management protocol
    A.8 VDE support protocol
    A.9 Data set management protocol
    A.10 VAA management protocol
    A.12 Variable access protocol
B DLMS user states description
    B.1 Overview
    B.2 Context management states
    B.3 Data set management states
    B.4 Task invocation management states
ZA (normative) Normative references to international
    publications with their corresponding European
    publications

Covers communication through the distribution line carrier technology (DLC) on both low and medium voltage distribution network. Includes control and monitoring, broadcasting of orders, control of user interfaces, public lighting, traffic lights supervision, automatic meter reading and so on.