UNE-EN 1434-3:2016

Foreword
1 Scope
2 Normative references
3 Meter interfaces and protocols overview
4 Physical properties
    4.1 M-Bus interface
    4.2 Optical interface
    4.3 Inductive interface
    4.4 CL interface
5 Heat meter communication using the data transmission
    protocol of EN 61107
    5.1 Protocol modes according to EN 61107 for
          heat meters
    5.2 Restrictions for heat meters
    5.3 Data presentation for heat meter
    5.4 Coding of the unit in the data set
    5.5 Coding of the value in the data set
    5.6 Presentation of related values
6 Heat meter communication using the data transmission
    protocol of EN 60870 pt5
    6.1 Protocol modes according to EN 60870-5 for
          heat meters
    6.2 Frame formats used
    6.3 Communication between requesting device (Master)
          and heat meter (slave)
    6.4 Coding of data records
    6.5 Fixed data structure
    6.6 Variable data structure
Annexes
A (informative) Additional information using M-Bus
    A.1 Arrangement for test of signal quality-sending
    A.2 Arrangement for test of signal quality-receiving
B (informative) Worst case calculation for M-Bus system
    B.1 Assumptions
    B.2 All slaves are at the end of the M-Bus line
    B.3 The slaves are equally distributed over the
          M-Bus line
C (informative) Additional information about the
    master-unit for the M-Bus
    C.1 Master side interface to the M-Bus
    C.2 Master side interface for local data read out
    C.3 Medium size level converter
    C.4 Full size level converter
D (informative) Description of inductive interface,
    primary part
    D.1 Transmission principle
    D.2 Construction of inductive reading head
    D.3 Electrical characteristic values
E (informative) Additional information for heat meters
    E.1 Recommendation for heat meter test interface
    E.2 Registration of supplier's ID
    E.3 Additional information regarding EN 6107 protocol
    E.4 Additional information regarding the M-Bus

heat-exchange circuit which is absorbed or given up by the heat- conveying liquid in legal units. Does not cover electrical safety requirements.