SIST EN 13757-1:2022
(Main)Communication systems for meters - Part 1: Data exchange
Communication systems for meters - Part 1: Data exchange
This document specifies data exchange and communications for meters in a generic way.
This document establishes a protocol specification for the Application Layer for meters and establishes several protocols for meter communications which can be applied depending on the application being fulfilled.
This document also specifies the overall structure of the OBject Identification System (OBIS) and the mapping of all commonly used data items in metering equipment to their identification codes.”
NOTE Electricity meters are not covered by this document, as the standardization of remote readout of electricity meters is a task for CENELEC/IEC.
Kommunikationssysteme für Zähler - Teil 1: Datenaustausch
Dieses Dokument legt den Datenaustausch und die Kommunikation für Zähler in allgemeiner Weise fest.
Es legt außerdem eine Protokollspezifikation für die Anwendungsschicht für Zähler und verschiedene Protokolle für die Zählerkommunikation fest, die in Abhängigkeit von der auszuführenden Anwendung angewendet werden können.
Darüber hinaus wird in diesem Dokument die allgemeine Struktur des Objektidentifikationssystems OBIS und die Zuordnung aller allgemein in Messsystemen verwendeten Datenobjekte zu ihren Identifizierungs-Codes.
ANMERKUNG Elektrizitätszähler werden von diesem Dokument nicht abgedeckt, da die Normung für die Fernablesung von Elektrizitätszählern CENELEC/IEC obliegt.
Systèmes de communication pour compteurs - Partie 1 : Échange de données
Le présent document explique l’échange de données et les communications relatifs aux compteurs, de manière générale.
Il établit une spécification de protocole pour la couche application des compteurs ainsi que plusieurs protocoles pour les communications des compteurs qui peuvent être appliqués selon l’application en cours de réalisation.
Il précise également la structure générale du système d’identification d’objet (OBIS) et l’organisation des données couramment utilisées dans les équipements de comptage en fonction de leurs codes d’identification.
NOTE Les compteurs d’énergie électrique ne sont pas concernés par le présent document, car la normalisation du télérelevé des compteurs d’énergie électrique est assurée par le CENELEC/l'IEC.
Komunikacijski sistemi za merilnike - 1. del: Izmenjava podatkov
Ta dokument določa izmenjavo podatkov in komunikacijo za merilnike na generičen način.
Ta dokument določa protokolsko specifikacijo za aplikacijski nivo za merilnike in določa več protokolov za komunikacijo z merilniki, ki jih je mogoče uporabiti glede na zadevno uporabo.
Ta dokument določa tudi splošno strukturo sistema za prepoznavanje objektov (OBIS) in preslikave vseh pogosto uporabljanih podatkovnih elementov v opremi za merjenje v njihove identifikacijske oznake.
OPOMBA: Merilniki električne energije v tem dokumentu niso obravnavani, saj standardizacija daljinskega odčitavanja merilnikov električne energije sodi v pristojnost odborov CENELEC/IEC.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 13757-1:2022
01-februar-2022
Nadomešča:
SIST EN 13757-1:2015
Komunikacijski sistemi za merilnike - 1. del: Izmenjava podatkov
Communication systems for meters - Part 1: Data exchange
Kommunikationssysteme für Zähler - Teil 1: Datenaustausch
Systèmes de communication pour compteurs - Partie 1 : Échange de données
Ta slovenski standard je istoveten z: EN 13757-1:2021
ICS:
33.200 Daljinsko krmiljenje, daljinske Telecontrol. Telemetering
meritve (telemetrija)
35.100.70 Uporabniški sloj Application layer
SIST EN 13757-1:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 13757-1:2022
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SIST EN 13757-1:2022
EN 13757-1
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2021
EUROPÄISCHE NORM
ICS 33.200; 35.100.70; 35.240.99; 91.140.50 Supersedes EN 13757-1:2014
English Version
Communication systems for meters - Part 1: Data exchange
Systèmes de communication pour compteurs - Partie 1 Kommunikationssysteme für Zähler - Teil 1:
: Échange de données Datenaustausch
This European Standard was approved by CEN on 16 August 2021.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
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, Turkey 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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13757-1:2021 E
worldwide for CEN national Members.
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SIST EN 13757-1:2022
EN 13757-1:2021 (E)
Contents Page
European foreword . 4
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 General description and security . 10
4.1 Basic vocabulary . 10
4.2 Layered protocols . 10
4.3 Security . 13
5 Network Architecture . 17
5.1 M/441 Mandate . 17
5.2 General. 18
5.3 Basic architecture . 18
5.4 Metering Architecture . 19
5.5 Singular access point . 21
5.6 Self-configurable network . 21
5.7 Hand Held Unit for local access . 21
5.8 Network layers . 21
5.9 Multiple access . 21
6 Application Layers for Metering . 22
6.1 General. 22
6.2 COSEM Application Layer for Metering . 22
6.3 Companion Specification . 22
6.4 COSEM Basic Principles . 23
6.5 Management of a COSEM Device . 24
6.6 Lower layers . 25
7 Data Exchange . 26
7.1 General. 26
7.2 Data exchange using direct local connection . 26
7.3 Data exchange using wired local area network (LAN) . 27
7.4 Data exchange using wide area network (WAN) . 28
7.5 Data exchange using M-Bus radio communication . 34
7.6 Data Exchange using HDLC . 34
8 Upper Layer Protocols . 35
8.1 Introduction . 35
8.2 Transport sub-layer . 35
8.3 Application sub-layer . 38
9 Cross-application data handling. 39
9.1 General. 39
9.2 Data tunnelling . 40
9.3 Data translation . 42
10 Extensions to COSEM . 42
10.1 Introduction . 42
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10.2 M-Bus tunnelling . 42
10.3 Specific object type – Error Reporting Object . 43
11 Object Identification System (OBIS) . 44
11.1 Object Identification System (Variable naming rules) . 44
11.2 Abstract Objects (A = 0) . 48
11.3 Media specific value groups . 49
Annex A (normative) Basic class meters . 99
Annex B (informative) DLMS Glossary . 102
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SIST EN 13757-1:2022
EN 13757-1:2021 (E)
European foreword
This document (EN 13757-1:2021) has been prepared by Technical Committee CEN/TC 294
“Communication systems for meters”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2022, and conflicting national standards shall be
withdrawn at the latest by June 2022.
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 EN 13757-1:2014.
Significant technical changes between this document and EN 13757-1:2014 are:
• The text has been updated to reflect increased use of IPv6 in 4.2.3;
• Figure 4 has been replaced with Table 3;
• Key wrapping has been added in 4.3.3.1;
• A description of pre-established Application Associations has been added in 4.3.4;
• Figure 11 has been replaced with a table and enhanced;
• A reference to GSM CSD has been added in 7.4.2;
• A security clause has been added in 7.5.4;
• 8.2.1 has been updated in line with 8.2.2 and 8.2.3, and now references EN 62056-4-7;
• Previous subclause 9.2.2.3 has been removed;
• New content has been added in 9.3 to align with EN 13757-3:2018, Annex H;
• Interface classes now refer to EN IEC 62056-6-1 and EN IEC 62056-6-2 to remove duplication;
• Clause 11 has had minor updates and been aligned with DLMS/COSEM object model;
• Mandatory COSEM Objects have been added in A.2;
• Annex B has been updated in line with EN 62056-6-1 and EN 62056-6-2;
• Annex D now references EN62056-6-1;
• The bibliography has been updated.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
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EN 13757-1:2021 (E)
The OBIS and COSEM Clause 6 to Clause 11 of this document are prepared in liaison with the DLMS User
Association based in Zug, Switzerland, and more information about DLMS/COSEM can be obtained from
www.dlms.com.
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.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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, Turkey and the
United Kingdom.
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EN 13757-1:2021 (E)
Introduction
This document is referred to in the CEN/CLC/ETSI TR 50572:2011, Functional Reference Architecture
for Communications in Smart Metering Systems, as a standard for communications between elements in
the Smart Metering Architecture. The M/441 Mandate, which led to the CEN/CLC/ETSI TR 50572, is
driving significant development of standards in smart metering.
This document has been amended to reflect significant updates in Security practices, and updates to the
OBIS model to reflect the state of the art. COSEM Classes have been removed from this document, as
they are published in the EN IEC 62056-6-2 standard and there is a risk of contradiction.
For an overview of activities, see M/490, the mandate for standardization for smart grid, available from
https://ec.europa.eu/energy/sites/ener/files/documents/2011_03_01_mandate_m490_en.pdf, and
more generally https://ec.europa.eu/energy/en/topics/markets-and-consumers/smart-grids-and-
meters/smart-grids-task-force.
This document describes the data exchange and communications for meters and remote reading of
meters in a generic way. It is Part 1 of EN 13757.
The main use of EN 13757-1 is to provide an overview of the protocols at the different levels and to
provide a specification for the DLMS/COSEM application Layer for meters.
Additional parts to the series of standard EN 13757 are:
— Part 2: Wired M-Bus communication;
— Part 3: Application protocols;
— Part 4: Wireless M-Bus communication;
— Part 5: Wireless M-Bus relaying;
— Part 6: Local Bus;
— Part 7: Transport and security services.
The world of metering is going through a period of rapid change, and it is anticipated that this and other
parts of the standard will require amending in a short period of time.
NOTE 1 This document makes repeated reference to EN 62056 standards. While the list of references is helpful,
an essential companion to this document is the EN IEC 62056-6-2 standard.
NOTE 2 Some of the ISO/IEC documents listed under Clause 2 could be available only from ISO or IEC directly.
If the document you require is not available from your national standards organization, ISO or IEC can be
contacted to establish the status of the document and its availability. ISO can be contacted via www.iso.org.
NOTE 3 Clause 3 contains the terms and definitions special to remote reading of meters. Annex B is used to
explain terms related to the object oriented model used in COSEM, detailed in EN IEC 62056-6-2 and OBIS,
detailed in EN 62056-6-1.
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EN 13757-1:2021 (E)
1 Scope
This document specifies data exchange and communications for meters in a generic way.
This document establishes a protocol specification for the Application Layer for meters and establishes
several protocols for meter communications which can be applied depending on the application being
fulfilled.
This document also specifies the overall structure of the Object Identification System (OBIS) and the
mapping of all commonly used data items in metering equipment to their identification codes.
NOTE Electricity meters are not covered by this document, as the standardization of remote readout of
electricity meters is a task for CENELEC/IEC.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 13757-2:2018, Communication systems for meters - Part 2: Wired M-Bus communication
EN 13757-3:2018, Communication systems for meters - Part 3: Application protocols
EN 13757-4:2019, Communication systems for meters - Part 4: Wireless M-Bus communication
EN 13757-5:2015, Communication systems for meters - Part 5: Wireless M-Bus relaying
EN 13757-6, Communication systems for meters - Part 6: Local Bus
EN 13757-7:2018, Communication systems for meters - Part 7: Transport and security services
EN 60870-5-2, Telecontrol equipment and systems - Part 5: Transmission protocols - Section 2: Link
transmission procedures (IEC 60870-5-2)
EN 62056-3-1, Electricity metering data exchange - The DLMS/COSEM suite - Part 3-1: Use of local area
networks on twisted pair with carrier signalling (IEC 62056-3-1)
EN 62056-4-7:2016, Electricity metering data exchange - The DLMS/COSEM suite - Part 4-7:
DLMS/COSEM transport layer for IP networks (IEC 62056-4-7)
EN 62056-5-3, Electricity metering data exchange - The DLMS/COSEM suite - Part 5-3: DLMS/COSEM
application layer (IEC 62056-5-3)
EN 62056-6-1:2017, Electricity metering data exchange - The DLMS/COSEM suite - Part 6-1: Object
Identification System (OBIS) (IEC 62056-6-1:2017)
1
EN 62056-6-2:2018, Electricity metering data exchange - The DLMS/COSEM suite - Part 6-2: COSEM
interface classes (IEC 62056-6-2:2017)
EN 62056-9-7, Electricity metering data exchange - The DLMS/COSEM suite - Part 9-7: Communication
profile for TCP-UDP/IP networks (IEC 62056-9-7)
1) The EN 62056 series of standards are in the process of revision/renumbering.
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EN 13757-1:2021 (E)
EN 62056-21:2002, Electricity metering - Data exchange for meter reading, tariff and load control - Part
21: Direct local data exchange (IEC 62056-21:2002)
EN 62056-42, Electricity metering - Data exchange for meter reading, tariff and load control - Part 42:
Physical layer services and procedures for connection-oriented asynchronous data exchange (IEC 62056-
42)
EN 62056-46:2002, Electricity metering - Data exchange for meter reading, tariff and load control - Part
46: Data link layer using HDLC protocol (IEC 62056-46:2002)
ITU-T V.250, Serial asynchronous automatic dialling and control
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
authorized party
utility, energy retailer, network operator, meter operator or data collection company authorized to
access the information stored in the meter that is accessible to them according to the application
association they can use
3.2
base conditions
fixed conditions used to express the volume of gas independently of the measurement conditions
EXAMPLE: temperature of 273,15 K and absolute pressure of 1,013 25 bar or temperature of 288,15 K and
absolute pressure of 1,013 25 bar
3.3
billing period
period over which a consumer bill is calculated
Note 1 to entry: See also B.7.
3.4
calendar
mechanism to program changes to active registers for Time-of-Use Tariffs
Note 1 to entry: See Activity Calendar B.3.
3.5
concentrator
intelligent station in a hierarchical communications network where incoming data (generated by
multiple meters) is processed as appropriate and then repackaged, relayed, retransmitted, discarded,
responded to, consolidated, prioritized and/or increased to multiple messages
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EN 13757-1:2021 (E)
3.6
disturbance
influence quantity having a value within the limits specified, but outside the specified rated operating
conditions of the measurement instrument
3.7
gas-volume conversion device
device that computes, integrates and indicates the volume increments measured by a gas meter as if it
were operating at base conditions, using as inputs the volume at measurement conditions as measured
by the gas meter, and other characteristics such as gas temperature and gas pressure
Note 1 to entry: The conversion device can also include the error curve of the gas meter and associated
measuring transformers.
Note 2 to entry: The deviation from the ideal gas law can be compensated by the compressibility factor.
3.8
hand held terminal
portable device for reading and programming metering equipment at the customer’s premises or at the
access point
3.9
index
current reading of the total volume (mass) passed through the meter
3.10
index difference
difference between the index at the end of a measurement or billing period
and the index at the start of the same measurement or billing period
Note 1 to entry: Index difference over a certain measurement or billing period is also known as consumption. For
consumption, thresholds can be specified.
3.11
IPsec
end-to-end security scheme operating in the Internet Layer
Note 1 to entry: It works on IPv4 and IPv6 Networks.
Note 2 to entry: It is described in IETF RFC 4301.
3.12
measurement conditions
conditions of the gas whose volume is measured, at the point of measurement
EXAMPLE: the temperature and the pressure of the gas
3.13
scaler
exponent (to the base of 10) of the multiplication factor
Note 1 to entry: If the value is not numerical, then the scaler will be set to 0.
Note 2 to entry: See also B.49
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3.14
specified measuring range
set of values of measurements (the pressure for the pressure transducer or temperature for the
temperature transducer) for which the error of the conversion device is intended to lie within the limits
specified in the standard
Note 1 to entry: The upper and lower limits of the specified measuring range are called maximum value and
minimum value respectively.
3.15
specified field of measurement of a conversion device
set of values at measurement conditions for which the error of the conversion device is within specified
limits
Note 1 to entry: A conversion device has a measuring range for every quantity that it processes.
Note 2 to entry: The specified field of measurement applies to the characteristic quantities of the gas that are
used to determine the conversion factor.
3.16
unit
enumeration defining the physical unit
Note to entry: See also B.69.
4 General description and security
4.1 Basic vocabulary
All communications involve two sets of equipment represented by the terms Caller system and Called
system. The Caller is the system that decides to initiate a communication with a remote system known
as the Called party; these denominations remain valid throughout the duration of the communication.
A communication is broken down into a certain number of transactions. Each transaction is represented
by a transmission from the Transmitter to the Receiver. During the sequence of transactions, the
Caller and Called systems take turns to act as Transmitter and Receiver.
The terms Client and Server have the same meanings as in the DLMS model EN 61334-4-41. The
Server is the system (meter) that acts as a receiver for service requests. The Client is the system
(usually a data collecting system) that uses the Server for a specific purpose by means of one or more
service requests.
The situation involving a Caller Client and a Called Server is undoubtedly the most frequent case, but
a communication based on a Caller Server and a Called Client is also possible, in particular to report
the occurrence of an urgent alarm and can offer savings in terms of data volumes in mass metering
applications.
While the terms Caller and Called can imply a session, sessionless communications using, for example
UDP over IP, are also a valid approach to communications for smart meters depending on the type of
network.
4.2 Layered protocols
4.2.1 General
The purpose of this subclause is to explain, in a summarized way, the layered approaches and to explain
the development since the initial issue of this document.
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In order to perform automatic reading of meters, this document assumes a protocol stack approach. A
protocol stack is divided into layers in order to reduce the complexity of the communicating system.
Each layer provides services to the layer above on the basis of the layer below.
4.2.2 7 Layer Protocol
The architecture of data communication in this document is modelled using the ISO – OSI 7-layer
reference model ISO/IEC 7498-1. The model is shown in Figure 1.
Key
A physical media 4 transport
B relay entity 5 session
1 physical 6 presentation
2 data link 7 application
3 network
Figure 1 — The OSI 7-layer model
All layers have a corresponding layer at the other end of the communications link. The three upper
layers are application related. The three lower layers are communications related. The Transport Layer
creates the link between them. There may be multiple instances of the three lower layers if a relay is
inserted between the communicating partners.
It shall be kept in mind that this is a model and not an implementation guide, i.e. not all
implementations follow this model. An example of this is the Internet series of standards. They follow
the model for the four lower layers, but do not specify the application related part as independent
layers. Layers not necessary and thus not implemented in a specific protocol may be handled as null
layers.
4.2.3 IP Protocol
IPv4 and IPv6 are widely used protocols for transport of all kinds of data, including metering data. Its
principal advantages are that it can be used to carry a wide variety of applications over a wide range of
communications media.
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EN 13757-1:2021 (E)
Table 1 — Connection method independent Application Layers
Application Common, method
Layer independent layer
TCP/UDP IP Wrapper
Transport UDP TCP
Network IP
Data Link Any Any
Physical Any Any
The architecture shown in Table 1 allows for multiple different communications media, while at the
same time keeping a common connection method independent Application Layer. This is important as
different connection methods are suited for different operating environments. The use of common
layers lowers the overall cost and complexity of a remote readout metering system.
Users of the TCP/IP or UDP/IP protocol shall follow the standard EN 62056-4-7.
4.2.4 3 Layer Protocol
A very common model for simple meter readout without any relays is a collapsed three layer model as
depicted in Table 2.
This is the IEC 3-layer model EN 61334-4-1, which is derived from OSI 7-layer model documented in
ISO/IEC 7498-1.
The three layers of the IEC model are shown in Table 2.
Table 2 — IEC 3-layer model
Layer 7 Application
Layer 2 Data link
Layer 1 Physical
NOTE 1 The layer numbers refers to the numbering in the ISO-OSI 7_layer model.
This model ensures that the original concept of a model where the Application Layer is independent of
communication transport method used, is maintained.
This division makes it possible to achieve an Application Layer that is independent of the
communication connection method used, and the possibility of using the same communication method
transport mechanism for different Application Layers. An example of this is shown in Table 3. The
Physical Layer and in some cases the Data Link Layer are closely related and highly dependent on the
Layers 1 and 2 depend on the connection method used (Optical interface, Power Line Carrier-Low
Voltage (PLC – LV), Public Switched Telephone Network (PSTN), VHF/UHF radio, Twisted Pair cable
(TP)). This document requires Application Layers that are independent of the connection method used.
12
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...
SLOVENSKI STANDARD
oSIST prEN 13757-1:2020
01-julij-2020
Komunikacijski sistemi za merilnike - 1. del: Izmenjava podatkov
Communication systems for meters - Part 1: Data exchange
Kommunikationssysteme für Zähler - Teil 1: Datenaustausch
Systèmes de communication pour compteurs - Partie 1 : Échange de données
Ta slovenski standard je istoveten z: prEN 13757-1
ICS:
33.200 Daljinsko krmiljenje, daljinske Telecontrol. Telemetering
meritve (telemetrija)
35.100.70 Uporabniški sloj Application layer
oSIST prEN 13757-1:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 13757-1:2020
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oSIST prEN 13757-1:2020
DRAFT
EUROPEAN STANDARD
prEN 13757-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2020
ICS 33.200; 35.100.70; 35.240.99; 91.140.50 Will supersede EN 13757-1:2014
English Version
Communication systems for meters - Part 1: Data exchange
Systèmes de communication pour compteurs - Partie 1 Kommunikationssysteme für Zähler - Teil 1:
: Échange de données Datenaustausch
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 294.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.
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, Turkey and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13757-1:2020 E
worldwide for CEN national Members.
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oSIST prEN 13757-1:2020
prEN 13757-1:2020 (E)
Contents Page
European foreword . 7
Introduction . 8
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 10
4 General description and security . 12
4.1 Basic vocabulary . 12
4.2 Layered protocols . 12
4.2.1 General. 12
4.2.2 7 Layer Protocol . 13
4.2.3 IP Protocol . 13
4.2.4 3 Layer Protocol . 14
4.3 Security . 15
4.3.1 General. 15
4.3.2 Security Requirement Analysis/Threat Analysis . 16
4.3.3 Key Management . 16
4.3.4 COSEM Application Layer Security . 18
4.3.5 Transport Layer Security . 18
5 Network Architecture . 19
5.1 M/441 Mandate . 19
5.2 General. 19
5.3 Basic architecture . 20
5.4 Metering Architecture . 21
5.5 Singular access point . 22
5.6 Self-configurable network . 22
5.7 Hand Held Unit for local access . 22
5.8 Network layers . 23
5.9 Multiple access . 23
6 Application Layers for Metering . 23
6.1 General. 23
6.2 COSEM Application Layer for Metering . 23
6.3 Companion Specification . 24
6.4 COSEM Basic Principles . 24
6.5 Management of a COSEM Device . 25
6.6 Lower layers . 26
7 Data Exchange . 27
7.1 General. 27
7.2 Data exchange using direct local connection . 27
7.2.1 General. 27
7.2.2 Security . 27
7.2.3 Physical layer . 27
7.2.4 Link Layer . 28
7.3 Data exchange using wired local area network (LAN) . 28
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prEN 13757-1:2020 (E)
7.3.1 General . 28
7.3.2 Twisted pair, baseband signalling . 28
7.3.3 Twisted pair, baseband limited systems . 29
7.3.4 Twisted pair, carrier signalling . 29
7.4 Data exchange using wide area network (WAN) . 29
7.4.1 General . 29
7.4.2 PSTN/GSM CSD based connection . 29
7.4.3 IP connection . 33
7.5 Data exchange using M-Bus radio communication . 35
7.5.1 General . 35
7.5.2 Basic M-Bus radio networks . 35
7.5.3 Routed M-Bus radio networks . 35
7.5.4 Security over M-Bus radio networks . 35
7.6 Data Exchange using HDLC . 35
7.6.1 General . 35
7.6.2 Security . 35
7.6.3 Physical layer . 36
7.6.4 Link Layer . 36
8 Upper Layer Protocols . 36
8.1 Introduction . 36
8.2 Transport sub-layer . 36
8.2.1 Introduction . 36
8.2.2 EN 62056-46 related Transport sub-layer . 37
8.2.3 EN 62056-4-7 related Transport sub-layer . 37
8.2.4 Transport sub-layer . 37
8.3 Application sub-layer . 39
8.3.1 General . 39
8.3.2 Application layer structure . 39
8.3.3 Service specification . 40
8.3.4 Protocol specification . 40
9 Cross-application data handling . 40
9.1 General . 40
9.2 Data tunnelling . 41
9.2.1 General . 41
9.2.2 M-Bus Application Layer transferred by DLMS . 41
9.3 Data translation . 43
10 Extensions to COSEM . 44
10.1 Introduction . 44
10.2 M-Bus tunnelling . 44
10.3 Specific object types . 44
10.3.1 Error reporting object . 44
11 Object Identification System (OBIS) . 46
11.1 Object Identification System (Variable naming rules) . 46
11.1.1 Introduction . 46
11.1.2 Structure . 46
11.1.3 Manufacturer, utility, consortia and country specific codes . 47
11.1.4 Common value groups . 47
11.2 Abstract Objects (A = 0) . 50
11.3 Media specific value groups . 50
11.3.1 General . 50
11.3.2 Value groups specific to Heat Cost Allocators . 50
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11.3.3 Value groups specific to Heat or Cooling Meters . 55
11.3.4 Value groups specific to Gas Meters . 63
11.3.5 Value groups specific to Water Meters (A = 8 and A = 9) . 94
11.4 Other media (Value group A = F) . 98
11.4.1 General. 98
11.4.2 Value group C codes – Other media . 98
11.4.3 Value group D codes – Other media . 98
11.4.4 Value group E codes – Other media . 98
11.4.5 Value group F codes – Other media . 98
11.5 Code presentation . 98
11.5.1 Reduced ID codes (e.g. for EN 62056-21) . 98
11.5.2 Display . 99
11.5.3 Special handling of value group F . 99
Annex A (normative) Basic class meters . 101
A.1 General. 101
A.2 Mandatory contents of a COSEM logical Device . 101
A.3 Basic requirements for Heat Cost Allocators . 101
A.4 Basic requirements for Heat/Cooling meters . 102
A.5 Basic requirements for Gas meters . 102
A.6 Basic requirements for Cold/Hot water meters . 103
Annex B (informative) DLMS Glossary . 104
B.1 Introduction . 104
B.2 Activation mask . 104
B.3 Activity calendar . 104
B.4 Association LN . 104
B.5 Association SN . 104
B.6 Automatic capturing . 104
B.7 Billing Period in COSEM . 104
B.8 Capture . 105
B.9 Channel . 105
B.10 Clock . 105
B.11 Current and last average value objects . 106
B.12 Date and time . 106
B.13 Daylight saving. 106
B.14 Demand Register . 106
B.15 Device ID . 108
B.16 Error values . 108
B.17 High level security . 108
B.18 Interface modelling . 108
B.19 I/O Control Signals . 108
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prEN 13757-1:2020 (E)
B.20 Interoperability . 108
B.21 Logical device . 109
B.22 Logical name referencing . 109
B.23 Low level security . 109
B.24 Manufacturer defined ID-s . 109
B.25 Manufacturer specific abstract objects. 109
B.26 Manufacturer specific class id . 110
B.27 Manufacturer specific data and parameters . 110
B.28 Manufacturer specific OBIS codes . 110
B.29 Maximum and minimum value objects . 110
B.30 Measurement of different media . 110
B.31 Measurement method and tariffs . 110
B.32 Measurement values series . 111
B.33 Missing measurement values . 111
B.34 Node . 111
B.35 Password . 111
B.36 Physical device . 111
B.37 Power failure handling . 111
B.38 Power failure monitoring . 112
B.39 Preferred readout-values . 112
B.40 Profile objects . 112
B.41 Profile for billing periods . 112
B.42 Profile generic interface class . 112
B.43 Register interface class . 112
B.44 Reset, IC Demand register . 113
B.45 Reset, IC Extended register . 113
B.46 Reset, IC Profile generic . 113
B.47 Reset, IC Register . 113
B.48 Reset, indication of source . 113
B.49 Scaler . 113
B.50 Scaler-unit . 113
B.51 Schedule . 114
B.52 Script .
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