IEC 61334-6 : 1.0

DISTRIBUTION AUTOMATION USING DISTRIBUTION LINE CARRIER SYSTEMS - PART 6: A-XDR ENCODING RULE

International Electrotechnical Committee

More details

More info

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

Abstract

Gives a set of encoding rules that may be used to derive the specification of a transfer syntax for values of types that are defined in the DLMS core standard with use of the ASN.1 notation (see IEC 61334-4-41). These rules are also applicable for decoding such a transfer syntax so as to identify the data values being transferred.