FprEN 14151-4

Water meters - Part 4: Additional functionalities

This document specifies definitions, requirements and testing of additional functionalities for water meters, without metrological impact, in combination with Additional Functionality Devices (AFD) and in response to EU/EFTA Mandate M/441 EN. These AFDs are considered as "ancillary devices" as defined in EN ISO 4064-1:2017 and EN ISO 4064-4:2014.
This document does not cover the changing of metrological software within the meter or the upload/download of metrological software.
NOTE    A manufacturer can claim compliance only for additional functionalities described in this document. It is not mandatory that an AFD complies with all additional functionalities described herein.

Wasserzähler - Teil 4: Zusätzliche Funktionalitäten

Dieses Dokument legt Begriffe, Anforderungen und Prüfverfahren für zusätzliche Funktionalitäten für Wasserzähler ohne metrologische Auswirkungen in Kombination mit Zusatzfunktionsgeräten (ZFG) entsprechend EU/EFTA-Mandat M/441 EN fest. Diese ZFGs gelten als "Zusatzgeräte" gemäß der Definition in EN ISO 4064-1:2017 und EN ISO 4064-4:2014.
Dieses Dokument behandelt nicht die Änderung metrologischer Software innerhalb des Zählers oder deren Hoch-/Herunterladen.
ANMERKUNG   Ein Hersteller kann nur für in dieser Europäischen Norm beschriebene Zusatzfunktionen Konformität beanspruchen. Ein Zusatzfunktionsgerät (ZFG) muss nicht notwendigerweise alle in diesem Dokument definierten Funktionen beinhalten.

Compteurs d’eau - Partie 4 : Fonctionnalités additionnelles

Le présent document spécifie les définitions, exigences et essais des fonctionnalités additionnelles des compteurs d’eau, sans impact métrologique, en combinaison avec les dispositifs à fonctionnalités additionnelles (AFD) et en réponse au mandat UE/EFTA M/441 EN. Ces AFD sont considérés comme des « dispositifs auxiliaires » conformément à la définition de l’EN ISO 4064-1:2017 et de l’EN ISO 4064-4:2014.
Le présent document ne traite pas de la modification du logiciel à caractère métrologique dans le compteur ou du téléchargement d’un logiciel à caractère métrologique.
NOTE   Un fabricant peut déclarer la conformité uniquement pour les fonctionnalités additionnelles décrites dans le présent document. Il n’est pas obligatoire qu’un AFD soit conforme à toutes les fonctionnalités additionnelles décrites dans le présentee document.

Vodomeri - 4. del: Dodatne funkcije

General Information

• Status: Not Published
• ICS: 91.140.60 - Water supply systems
• Technical Committee: CEN/TC 92 - Test methods and equipment for cold water meters
• Drafting Committee: CEN/TC 92/WG 2 - General requirements
• Directive: 2014/32/EU - Directive 2014/32/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of measuring instruments
• Mandate: M/441 - Standardisation mandate to CEN, CENELEC and ETSI in the field of measuring instruments for the development of an open architecture for utility meters involving communication protocols enabling interoperability
• Ref Project: oSIST prEN 14154-4:2022 - Water meters - Part 4: Additional functionalities

RELATIONS

• Revised: EN 14154-4:2014 - Water meters - Part 4: Additional functionalities
• Effective Date: 27-Jan-2021

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN 14154-4:2022
01-februar-2022
Vodomeri - 4. del: Dodatne funkcije
Water meters - Part 4: Additional functionalities
Wasserzähler - Teil 4: Zusätzliche Funktionalitäten
Compteurs d’eau - Partie 4 : Fonctionnalités additionnelles
Ta slovenski standard je istoveten z: prEN 14154-4
ICS:
91.140.60 Sistemi za oskrbo z vodo Water supply systems
oSIST prEN 14154-4:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 14154-4:2022
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oSIST prEN 14154-4:2022
DRAFT
EUROPEAN STANDARD
prEN 14154-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2021
ICS 91.140.60 Will supersede EN 14154-4:2014
English Version
Water meters - Part 4: Additional functionalities

Compteurs d'eau - Partie 4 : Fonctionnalités Wasserzähler - Teil 4: Zusätzliche Funktionalitäten

additionnelles

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 92.

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

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14154-4:2021 E

worldwide for CEN national Members.
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prEN 14154-4:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 General requirements ................................................................................................................................... 7

4.1 Types of additional functionality devices and requirements ......................................................... 7

4.2 Connection requirements ............................................................................................................................ 7

4.3 Environmental conditions ........................................................................................................................... 7

4.4 Security ............................................................................................................................................................... 8

4.5 Power supply .................................................................................................................................................... 8

4.6 Data storage ...................................................................................................................................................... 9

4.7 Clock requirements ........................................................................................................................................ 9

4.8 Marking ............................................................................................................................................................... 9

4.9 Documentation .............................................................................................................................................. 10

4.10 Display .............................................................................................................................................................. 11

4.11 Metrological influence ................................................................................................................................ 11

4.12 Input to AFD / Output from AFD ............................................................................................................. 12

5 Additional functionalities ......................................................................................................................... 12

5.1 General ............................................................................................................................................................. 12

5.2 Use cases .......................................................................................................................................................... 12

6 Environmental considerations ................................................................................................................ 16

Annex A (normative) Declaration of conformity to EN 14154-4 .............................................................. 17

Annex B (informative) Smart Metering, overview, core functionalities and definitions ................ 18

B.1 General ............................................................................................................................................................. 18

B.2 M2M Gateway ................................................................................................................................................ 18

B.3 Clusters ............................................................................................................................................................ 19

B.4 Primary Use Cases ........................................................................................................................................ 19

B.5 Secondary Use Cases ................................................................................................................................... 19

B.6 Primary Actors .............................................................................................................................................. 19

B.7 Actors ................................................................................................................................................................ 19

B.8 Use Cases ......................................................................................................................................................... 19

Annex C (informative) References to EN ISO 4064-1:2017, EN ISO 4064-2:2017,

EN ISO 4064-3:2014, EN ISO 4064-4:2014, EN ISO 4064-5:2017 ................................................ 20

Bibliography ................................................................................................................................................................. 22

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European foreword

This document (prEN 14154-4:2021) has been prepared by Technical Committee CEN/TC 92 “Water

meters”, the secretariat of which is held by SNV.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 14154-4:2014.

This document has been prepared under a Standardization Request given to CEN by the European

Commission and the European Free Trade Association.
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Introduction

This European Standard has been defined as part of the work being undertaken by the European

Standards Organizations (CEN/CENELEC/ETSI) under the Commission Mandate M/441. This document

utilizes the six functionalities agreed by the Smart Meters Coordination Group (SM-CG) (see Annex B) as

the basis for its additional functionalities. It is not required for the Additional Functionality Device (AFD)

to incorporate all functions defined in this document.

Communications for water meters are outside the scope of this document and are covered by the

appropriate parts of EN 13757-1, EN 13757-2, EN 13757-3, EN 13757-4, EN 13757-5 and EN 13757-6

which provide a number of protocols and transport layers for meter communications for Gas, Water and

Heat meters. The additional functionality for water meters can be provided by a number of methods;

these are illustrated below, see Figure 1 (4.1), and described in detail within this document. The AFD can

be integrated in the meter, attached to the meter or remote from the meter.
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1 Scope

This document specifies definitions, requirements and testing of additional functionalities for water

meters, without metrological impact, in combination with Additional Functionality Devices (AFD) and in

response to EU/EFTA Mandate M/441 EN. These AFDs are considered as “ancillary devices” as defined

in EN ISO 4064-1:2017 and EN ISO 4064-4:2014.

This document does not cover the changing of metrological software within the meter or the

upload/download of metrological software.

NOTE A manufacturer can claim compliance only for additional functionalities described in this document. It

is not mandatory that an AFD complies with all additional functionalities described herein.

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 ISO 4064-1:2017, Water meters for cold potable water and hot water - Part 1: Metrological and

technical requirements (ISO 4064-1:2014)

EN ISO 4064-2:2017, Water meters for cold potable water and hot water - Part 2: Test methods (ISO 4064-

2:2014)

EN ISO 4064-4:2014, Water meters for cold potable water and hot water - Part 4: Non-metrological

requirements not covered in ISO 4064-1 (ISO 4064-4:2014)

EN ISO 4064-5:2017, Water meters for cold potable water and hot water - Part 5: Installation requirements

(ISO 4064-5:2014)

EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)

3 Terms and definitions

For the purposes of this document, the terms, definitions and symbols given in EN ISO 4064-1:2017,

EN ISO 4064-2:2017, EN ISO 4064-4:2014 and EN ISO 4064-5:2017, and the following apply.

NOTE The following terms and definitions are only related to additional functionalities.

3.1
functionality

process which constantly or at defined intervals, automatically or on demand, performs specific activities

such as sampling data, reading a data set, verifying or changing a status, or activating a switch

3.2
additional functionality

functionality that a smart meter provides, over and above the metrological functionality covered by the

Measuring Instruments Directive
3.3
additional functionality device
device providing any additional functionality
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3.4
additional functionality device type 1
AFD1
additional functionality device integrated into the meter
3.5
additional functionality device type 2
AFD2
additional functionality device directly attached to the meter
3.6
additional functionality device type 3
AFD3
additional functionality device remotely connected to the meter
3.7
automatic meter reading

technology for obtaining metering data from an on-site meter by communication from a remote access

point
3.8
universal time coordinated
UTC
world time, without daylight savings
3.9
reading
primary indication of the total volume passed through the meter
3.10
metrological software

software identified during the type testing examination, which is part of the meter and is critical to its

metrological characteristics
3.11
register

Indication of the specific section in the memory of the control and metering unit that records data as

determined by the programme in the unit
3.12
event
condition requiring action or to log an action
3.13
event log

temporary or mid-term memorized listing of events, containing their occurrence, actions taken and their

reset
3.14
interface
point or means of interaction between two systems
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4 General requirements
4.1 Types of additional functionality devices and requirements
The additional functionality shall be provided by one of the following devices:

— AFD1; where all functions are within the same metrological enclosure as the meter;

— AFD2; where the AFD is attached directly to the meter. The manufacturer shall declare the

appropriate device compatibility;

— AFD3; where the AFD is located remotely and connected to the meter via a pulse interface or

communication interface. The manufacturer shall declare the appropriate device compatibility.

Figure 1 — Additional functionality devices
4.2 Connection requirements

The AFD2 and AFD3 shall be connected to the meter and tested as a combined unit in all the tests given

in 4.11.2 to ensure the connection of the AFD to the meter has no metrological influence.

The connection of the AFD to the meter or any labelling on the meter or the AFD shall not obscure or

damage any metrological seal of the meter.

When the AFD is connected, the consumer shall be able to read the primary indication on the meter to

units of at least cubic meters without the use of tools.
4.3 Environmental conditions

The AFD shall work with the meter at all operating conditions of the meter as required by the appropriate

standards.

Any AFD should be suitable to meet one of the environmental classes from EN ISO 4064-1:2017, A.2 and

A.3 and the related tests. An AFD3 may have a different environmental class to that of the meter.

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4.4 Security
4.4.1 General

The AFD shall be constructed in such a way that any unauthorized intervention shall either cause

permanently visible damage to the AFD or its protective seals, or creates a report in the event log. Any

physical seals shall be visibly fixed, and easily accessible.
4.4.2 Software, data and hardware security
4.4.2.1 Requirement
When tested in accordance with 4.4.2.2 the requirements below shall be met.

All available connections, ports and interfaces of the AFD which can be used for unauthorized adjustment

of the AFDs characteristics and additional functionality shall be effectively secured by protective seals.

No access shall be allowed to software and firmware by unauthorised persons. Software and data shall

be protected against accidental or intentional changes by the breaking of a physical seal or by using an

electronic seal.
For electronic seals the following requirements shall be met:
a) access shall only be obtained by using a password or a code;

b) unauthorized intervention shall be registered in the event log and the type of intervention identified,

and where available date and time to be included.

In the case of intended consumer access to the AFD, it shall be ensured that the access by the consumer

cannot inadvertently drain the battery capacity, where applicable.
4.4.2.2 Test

Compliance with the above requirements shall be checked by visual inspection and evaluation of the

manufacturer’s technical documentation.
4.4.3 Firmware upgrade of AFD

This part of the standard covers non-metrological upgrades only, providing there is clear separation

between the metrological and non-metrological functions.

Following any upgrade the information/functionality of the AFD shall be as declared by the manufacturer.

Any data still present shall be the same as prior to the upgrade.
NOTE Further guidance is available in WELMEC Guide 7.2
4.4.4 Software identification

The software (including version) shall have an unambiguous identifier that is retrievable.

4.5 Power supply

The power supply of the AFD shall comply with EN ISO 4064-1:2017, EN ISO 4064-4:2014 and shall be

tested accordingly.

For battery powered AFD, the manufacturer shall specify the minimum operational lifetime of the battery

depending on the stated functionality and operation. (E.G transmission intervals of radio communication

device)
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4.6 Data storage

The AFD shall be capable of storing data such as interval and event data. The manufacturer shall declare

which data are stored and how to access the stored data.

The stored data shall be retained and retrievable in non-volatile memory in the event of power failure as

tested according to EN ISO 4064-2:2017 unless the AFD has a non-replacable battery.

4.7 Clock requirements
4.7.1 General

Stored data shall be time stamped. The time stamps shall be generated by a clock which gives:

— a relative time stamp, or
— a non-synchronized time stamp, or
— a synchronized time stamp.
It is recommended that the synchronized time stamp within the AFD uses UTC.
The accuracy of the time stamp shall be suitable for its intended use.
4.7.2 Clock synchronisation

If the manufacturer declares that the AFD has a clock that can be synchronised with the clock of the meter,

then it shall be possible to carry out this synchronization.
A record shall also be placed in the event log showing what action was taken.
4.7.3 Clock setting

If the manufacturer allows setting of the clock, access shall only be achieved by the use of an electronic

seal or the breaking of a physical seal.
A record shall also be placed in the event log showing what action was taken.
4.8 Marking
4.8.1 Requirements

When tested in accordance with 4.8.2 the AFD shall as a minimum be marked as follows:

a) the number and date of this standard;
b) identification mark or name of the manufacturer;
c) serial number and year of manufacture;
d) mark with respective IP rating (EN 60529:1991);
e) ambient temperature range;

f) information about the type of battery (for security, transport and recycling purposes).

NOTE Additional marking might be required by legislation (e.g. CE marking, etc.).

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With the exception of b) and c), if all applicable information cannot be shown on the AFD this shall be

provided on the packaging or with the documentation provided. Additionally the necessary information

could be printed in a machine readable way (QR code, bar-code, etc.) on an accessable face of the AFD.

4.8.2 Test

This test is carried out by visual inspection. Machine-readable codes shall be tested with suitable machine

readers to demonstrate legibility.
4.9 Documentation
4.9.1 General

The following information shall be provided with each AFD or group of AFD’s used in the same location.

4.9.2 Declaration of conformity

For each AFD a Declaration of Conformity as per Annex A shall be available in written form or electronic

format and shall identify the name and address of the manufacturer and the date of issue.

4.9.3 Instruction manual

The operating instructions manual shall cover installation, operation and maintenance and shall be

available in written form or electronic format and shall identify the name and address of the

manufacturer and the date of issue. Each AFD or meter-AFD combination or packaging units of those shall

be delivered with installation, operation and maintenance appropriate instruction manuals, including:

— safe use and hazards arising from misuse and particular features of the design when appropriate;

— rated operating conditions;
— mechanical and electromagnetic environment classes;
— safe disposal and/or recycling guidance;

— conditions for compatibility with interfaces and type of communication protocol, and

— storage requirements.
The manuals may include the following optional information:
— possible installation positions;
— safety requirements concerning commissioning and de-commissioning procedures;
— statement if a maintenance is possible and a relevant instruction;
— way of controlling the proper installation and operation;
— provisions, if any, for transport and handling;
— how to trace the right spa
...