UNI CEI EN 13757-3 : 2013

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions, abbreviated terms and numbers
4 General principles: Cl-field
5 Variable Data Send and Variable Data Respond
6 Variable data blocks (records)
7 Value Information Block (6B)
8 Application layer status and error reporting
9 Generalised object layer
10 Manufacturer specific unstructured data block
11 Management of lower layers
Annex A (normative) - Coding of data records
Annex B (normative) - Interpretation of hex-codes
        Ah - Fh in BCD-data fields
Annex C (normative) - VIF coding for special units
Annex D (informative) - Alarm protocol
Annex E (informative) - Examples
Annex F (informative) - Secondary search
Annex G (informative) - International reference works
Annex H (informative) - Special sequences for wireless
        M-Bus devices
Annex I (normative) - Transmission of profiles
Annex J (informative) - The structure of higher protocol
        layers
Annex K (normative) - Compact M-Bus frame
Annex L (informative) - Use of standards for smart metering
        applications
Annex M (informative) - Installation and registration
Annex N (informative) - M-Bus data container
Annex O (normative) - Translating M-Bus type record descriptors
        to OBIS-type record descriptors
Annex P (informative) - Datagram examples for the M-Bus and the
         wM-Bus
Bibliography

Pertains to communication systems for meters and remote reading of meters.