EN 62056-31:2000

Foreword
1 General
  1.1 Scope
  1.2 Normative references
2 General description
  2.1 Basic vocabulary
  2.2 Layers and protocols
  2.3 Specification language
  2.4 Communication services for local bus data
      exchange without DLMS
      2.4.1 Remote reading exchange
      2.4.2 Remote programming exchange
      2.4.3 Point to point remote transfer
             exchange
      2.4.4 Broadcast remote transfer frame
      2.4.5 Bus initialization frame
      2.4.6 Forgotten station call exchange
      2.4.7 Frame fields
      2.4.8 Principle of the energy remote supply
      2.4.9 Non-energized station preselection
             exchange
      2.4.10 Communication exchange after
             preselection
      2.4.11 Alarm function
  2.5 Communication services for local bus data
      exchange with DLMS
  2.6 Systems management
3 Local bus data exchange without DLMS
  3.1 Physical layer
      3.1.1 Physical-62056-31 protocol
      3.1.2 Physical parameters
      3.1.3 Timing diagrams
      3.1.4 Physical services and service
             primitives
      3.1.5 State transitions
      3.1.6 List and processing of errors
  3.2 Data Link layer
      3.2.1 Link-62056-31 protocol
      3.2.2 Management of exchanges
      3.2.3 Data Link services and service
             primitives
      3.2.4 Data Link parameters
      3.2.5 State transitions
      3.2.6 List and processing of errors
  3.3 Application layer
      3.3.1 Link-62056-31 protocol
      3.3.2 Application services and service
             primitives
      3.3.3 Application parameters
      3.3.4 State transitions
      3.3.5 List and processing of errors
4 Local bus data exchange with DLMS
  4.1 Physical layer
  4.2 Data Link layer
      4.2.1 Link-E/D protocol
      4.2.2 Management of exchanges
      4.2.3 Data Link services and service
             primitives
      4.2.4 Data Link parameters
      4.2.5 State transitions
      4.2.6 List and processing of errors
  4.3 Application layer
      4.3.1 Transport sub-layer
      4.3.2 Application sub-layer
5 Local bus data exchange - Hardware
  5.1 General
  5.2 General characteristics
      5.2.1 Signal transmission at 50 kHz
      5.2.2 Energy supply signal transmission
      5.2.3 Simple Secondary Station and multiple
             Secondary Station
  5.3 Bus specification
      5.3.1 General characteristics
      5.3.2 Cable characteristics
      5.3.3 Wiring
  5.4 Magnetic plug
      5.4.1 Function
      5.4.2 Common mechanical characteristics
      5.4.3 Electrical Block diagram with simple
             plug
      5.4.4 Electrical Block Diagram with energy
             supply plug
  5.5 Functional specifications of Primary Station
      transmitter (for 50 kHz signal)
  5.6 Functional specifications of Primary Station
      receiver (for 50 kHz signal)
  5.7 Functional specification of Secondary Station
      transmitter (for 50 kHz signal)
  5.8 Functional specifications of Secondary Station
      receiver (for 50 kHz signal)
Annex A (normative) Specification language
Annex B (normative) Timing types and characteristics
Annex C (normative) List of fatal errors
Annex D (normative) Coding the command code field of frames
Annex E (normative) Principle of the CRC
Annex F (normative) Random integer generation for response
                       from forgotten stations
Annex G (normative) Random number generation for
                       authentication (architecture without
                       DLMS)
Annex H (normative) Systems management implementation
Annex I (informative) Information about exchanges
Annex ZA (normative) Normative references to international
                       publications with their corresponding
                       European publications

Describes two new architectures for local bus data exchange with stations either energized or not. For non-energized stations, the bus supplies energy for data exchange. The first architecture completes the base protocol (EN 61142) with remote transfer services. The second architecture allows operation of DLMS services using the same physical medium and the same physical layer. This complete compatibility guarantees the possibility of using EN 61142 and IEC 62056-31 equipment on the same bus.