CEN/TR 17167:2023

SLOVENSKI STANDARD
01-februar-2024
Komunikacijski sistemi za merilnike - Spremno tehnično poročilo k EN 13757-2,-3
in -7 - Primeri in dodatni podatki
Communication system for meters - Accompanying TR to EN 13757-2,-3 and -7,
Examples and supplementary information
Kommunikationssysteme für Zähler - Begleitender Technischer Bericht zu EN 13757-2, -
3 und -7, Beispiele und ergänzende Informationen
Systèmes de communication pour compteurs - Rapport technique accompagnant les EN
13757-2,-3 et -7 - Exemples et informations supplémentaires
Ta slovenski standard je istoveten z: CEN/TR 17167:2023
ICS:
33.200 Daljinsko krmiljenje, daljinske Telecontrol. Telemetering
meritve (telemetrija)
35.240.99 Uporabniške rešitve IT na IT applications in other fields
drugih področjih
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN/TR 17167
TECHNICAL REPORT
RAPPORT TECHNIQUE
December 2023
TECHNISCHER REPORT
ICS 33.200; 35.240.99; 91.140.50 Supersedes CEN/TR 17167:2018
English Version
Communication system for meters - Accompanying TR to
EN 13757-2,-3 and -7, Examples and supplementary
information
Systèmes de communication pour compteurs - Rapport Kommunikationssysteme für Zähler - Begleitender
technique accompagnant les EN 13757-2,-3 et -7 - Technischer Bericht zu EN 13757-2, -3 und -7,
Exemples et informations supplémentaires Beispiele und ergänzende Informationen

This Technical Report was approved by CEN on 6 November 2023. It has been drawn up by the Technical Committee CEN/TC
294.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 17167:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Symbols and abbreviations . 7
4.1 Abbreviations . 7
4.2 Symbols . 8
5 Overview . 8
Annex A (informative) Examples . 10
Annex B (informative) Secondary search - Instructions for implementation of wildcard
search . 18
Annex C (informative) Consumer feedback for smart metering applications . 20
Annex D (informative) Installation and registration . 23
Annex E (informative) M-Bus data container . 26
Annex F (informative) Datagram examples for the M-Bus and the wM-Bus . 28
Annex G (informative) Descriptors . 84
Bibliography . 90

European foreword
This document (CEN/TR 17167:2023) has been prepared by Technical Committee CEN/TC 294
“Communication systems for meters”, the secretariat of which is held by DIN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes CEN/TR 17167:2018.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
CEN/TR 17167:2018:
— update according new CEN rules IR3.
— update FCB usage and adding new Figure A.1 to be in line with EN 13757-2 (202x)
— add new M-Bus data container for M-Bus upper layers (77h)
— Update datagram example in (sub-)clauses F.4, F.5.4 and F.7.2.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
Introduction
This document belongs to a series of parts of EN 13757, which covers communication systems for meters
and remote reading of meters. EN 13757-1 contains generic descriptions and a communication protocol.
EN 13757-2 contains a physical and a link layer for twisted pair based Meter-Bus (M-Bus). EN 13757-3
contains detailed description of the application protocols especially the M-Bus Protocol. EN 13757-4
describes wireless communication (often called wireless M-Bus or wM-Bus). EN 13757-5 describes the
wireless network used for repeating, relaying and routing for the different modes of EN 13757-4.
EN 13757–7 describes transport mechanism and security methods for data.
These upper M-Bus protocol layers can be used with various physical layers and with link layers and
network layers, which support the transmission of variable length binary transparent messages.
Frequently, the physical and link layers of EN 13757-2 (twisted pair) and EN 13757-4 (wireless) as well
as EN 13757-5 (wireless with routing function) or the alternatives described in EN 13757-1 are used.
These upper M-Bus protocol layers have been optimized for minimum battery consumption of meters,
especially for the case of wireless communication to ensure long battery lifetimes of the meters. Secondly,
it is optimized for minimum message length to minimize the wireless channel occupancy and hence the
collision rate. Thirdly, it is optimized for minimum requirements towards the meter processor regarding
requirements of RAM size, code length and computational power.
An overview of communication systems for meters is given in EN 13757-1, which also contains further
definitions.
This document concentrates on the meter communication. The meter communicates with one (or
occasionally several) fixed or mobile communication partners which again might be part of a private or
public network. These further communication systems might use the same or other application layer
protocols, security, privacy, authentication, and management methods.
To facilitate common communication systems for CEN-meters (e.g. gas, water, thermal energy meters and
heat cost allocators) and for electricity meters, in this document occasionally electricity meters are
mentioned. All these references are for information only and are not standard requirements. The
definition of communication standards for electricity meters (possibly by a reference to CEN standards)
remains solely in the responsibility of CENELEC.
Table 1 gives an overview of the annexes as well as a reference to the corresponding Annexes in the
former EN 13757-3:2013 where applicable.
Table 1 — Relation between the annexes of this Technical report and EN 13757–3:2013
Annex Description Annex in EN 13757–3:2013
A Datagram examples for a twisted pair M-Bus link layer E
B Secondary search implementation instructions F
C Consumer feedback for smart metering applications L
D Installation and registration procedures M
E Implementation of an M-Bus data container N
F Datagram examples for wired and wireless M-Bus P
G Implementation of Descriptors —
1 Scope
This document contains additional information to the requirements determined in EN 13757-2,
EN 13757-3 and EN 13757–7, in particular examples for the implementation, datagram examples
secured by security mechanism of part 7 and additional non-normative requirements beyond meter
communication itself.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
byte
octet of bits
3.2
data integrity
property that data has not been altered or destroyed in an unauthorized manner
3.3
datagram
unit of data transferred from source to destination
3.4
integrity
see data integrity
3.5
key derivation
technique by which a (potentially large) number of keys are generated (“derived”) from a single initial
key and non-secret variable data with each resulting key using a non-reversible process
3.6
message
functional set of data transferred from source to destination
Note 1 to entry: A message can consist of one or more datagrams.
3.7
persistent key
cryptographic key which is kept for a prolonged period
3.8
security mechanism
mode of operation of a (symmetric) cryptographic algorithm
3.9
security mode
mode number in configuration field identifying a set of applied security mechanisms
3.10
security service
authenticity, confidentiality and data integrity
4 Symbols and abbreviations
4.1 Abbreviations
ACK Acknowledge
AES Advanced Encryption Standard
AFL Authentication and Fragmentation Layer
APL Application Layer
BCD Binary Coded Decimal numbers
CBC Cipher Block Chaining (AES mode of operation)
CF Configuration Field
CFE Configuration Field Extension
CI Control Information field
CMAC Cipher-based MAC [Source: NIST/SP 800–38B]
CMD Command
CNF-IR Confirm Installation Request
CTR Counter Mode encryption algorithm (AES mode of operation)
DIB Data Information Block
DIF Data Information Field
DIFE Data Information Field Extensions
DLL Data Link Layer
ELL Extended Link Layer
GCM Galois/Counter Mode, an algorithm for authenticated encryption with associated data
(AES mode of operation)
IV Initialisation Vector
LSB Least Significant Byte
MAC Message Authentication Code
NOTE MAC is in other standards also used as an acronym for Media Access Control for data
communication at the Physical Layer
MSB Most Significant Byte
OBIS Object Identification System (see IEC 62056–6-1)
REQ-UD Request User Data (class 1 or 2)
RSP-UD Respond User Data
RSSI Received Signal Strength Indicator
SM-CG Smart Meter Co-ordination Group
SND-IR Send Installation Request
SND-NKE Send Link Reset
SND-NR Send – No Reply
SND-UD Send User Data
TPL Transport Layer
VIB Value Information Block
VIF Value Information Field
VIFE Value Information Field Extensions
4.2 Symbols
Hexadecimal numbers are designated by a following “ ”.
h
Binary numbers are designated by a following “ ”.
b
Decimal numbers have no suffix.
The concatenation of fields is indicated by the symbol “||”. E.g. 12 || 34 results in 1234 .
h h h
5 Overview
The supplementary information on the requirements determined in EN 13757-2, EN 13757-3 and
EN 13757–7 is provided in the annexes of this document. Table 2 gives an Overview about these Annexes.
Annexes A, B and D are only applicable to wired M-Bus solution.
Annex C describes how parts of EN 13757-2, EN 13757-3, EN 13757-4 and EN 13757–7 can be used to
implement smart meter functionalities. Similar functionalities could also be implemented using other
physical and link layers.
Annex D provides information on installation procedures wireless meters and their integration in meter
management systems.
Annex E contains a definition of two containers to transport special data via an M-Bus data point.
Annex F provides many examples of plain and encrypted/authenticated M-Bus messages for the wired
and wireless M-Bus.
Annex G defines descriptors, i.e. special M-Bus data points, which have been added to explain the purpose
of other M-Bus data points.
Table 2 — Overview of the Annexes
Applicable for
Annex Description
wired M-Bus wireless M-Bus
A Datagram examples for a twisted pair M-Bus link layer x
B Secondary search implementation instructions x
C Consumer feedbac
...