IEC 61334-6:2000

Foreword
Introduction
1. Scope and object
2. Normative references
3. General characteristics of A-XDR
4. Structure of an encoding
5. Rules for encoding
    5.1 The Identifier field
    5.2 The Length field
    5.3 The Contents field
6. Encoding procedures
    6.1 Encoding of an INTEGER value
    6.2 Encoding of a BOOLEAN value
    6.3 Encoding of an ENUMERATED value
    6.4 Encoding of a BIT STRING value
    6.5 Encoding of an BYTE STRING value
    6.6 Encoding of a CHOICE value
    6.7 Tagged types (implicit, explicit and ASN.1
         explicit tagging)
    6.8 OPTIONAL and DEFAULT COMPONENTS
    6.9 Encoding of a SEQUENCE value
    6.10 Encoding of a SEQUENCE OF value
    6.11 Encoding of the VisibleString type
    6.12 Encoding of the GeneralizedTime type
    6.13 Encoding of the ASN.1 NULL type/value
Annex A (informative) Extensibility
Annex B (informative) ASN.1 types and keywords used in DLMS
Annex C (informative) Examples oF A-XDR encoding for DLMS PDUs
Figure 1 - The basic BER structure
Figure 2 - The structure of a constructed BER encoding
Figure 3 - The structure of a constructed A-XDR encoding
Figure 4 - Structure of the variable-length integer encoding

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).

This publication is of high relevance for Smart Grid.