EN 50491-12-1:2018

SLOVENSKI STANDARD
01-oktober-2018
Splošne zahteve za stanovanjske in stavbne elektronske sisteme (HBES) in
sisteme za nadzor in avtomatizacijo stavb (BACS) - Pametna omrežja - Aplikacijske
specifikacije - Vmesnik in okvir za odjemalca - 12-1. del: Vmesnik med CEM in
upravljalcem stanovanjskih in stavbnih virov - Splošne zahteve in arhitektura
General requirements for Home and Building Electronic Systems (HBES) and Building
Automation and Control Systems (BACS) - Smart grid - Application specification -
Interface and framework for customer - Part 12-1: Interface between the CEM and
Home/Building Resource manager - General Requirements and Architecture
Allgemeine Anforderungen an die Elektrische Systemtechnik für Heim und Gebäude
(ESHG) und an Systeme der Gebäudeautomation (GA) - Smart grid -
Anwendungsspezifikaion - Struktur der Schnittstelle für Anwender - Teil 12-1:
Schnittstelle zwischen CEM und Heim-/Gebäude-Ressourcenmanager - Allgemeine
Anforderungen und Architektur
Ta slovenski standard je istoveten z: EN 50491-12-1:2018
ICS:
35.240.67 Uporabniške rešitve IT v IT applications in building
gradbeništvu and construction industry
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50491-12-1

NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2018
ICS 97.120
English Version
General requirements for Home and Building Electronic Systems
(HBES) and Building Automation and Control Systems (BACS) -
Smart grid - Application specification - Interface and framework
for customer - Part 12-1: Interface between the CEM and
Home/Building Resource manager - General Requirements and
Architecture
Exigences générales relatives aux systèmes électroniques Allgemeine Anforderungen an die Elektrische
pour les foyers domestiques et les bâtiments (HBES) et aux Systemtechnik für Heim und Gebäude (ESHG) und an
systèmes de gestion technique du bâtiment (SGTB) Systeme der Gebäudeautomation (GA) - Smart grid -
Réseau intelligent Spécification d'application Interface et Anwendungsspezifikaion - Struktur der Schnittstelle für
cadre pour le client - Partie 12-1 : Interface entre le Anwender - Teil 12-1: Schnittstelle zwischen CEM und
gestionnaire d'énergie pour le client (CEM, Customer Heim-/Gebäude-Ressourcenmanager - Allgemeine
Energy Manager) et le gestionnaire de ressources pour Anforderungen und Architektur
foyers domestiques/ bâtiments. Exigences et Architecture
générales
This European Standard was approved by CENELEC on 2018-06-18. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50491-12-1:2018 E
Contents Page
European foreword 3
Introduction 4
1 Scope 5
2 Normative references 5
3 Terms, definitions and abbreviations 5
3.1 Terms and definitions 5
3.2 Abbreviations 8
4 Design considerations 8
4.1 General 8
4.2 Data security / privacy design guidelines 8
4.2.1 General 8
4.2.2 Data security / privacy on the smart grid side 8
4.2.3 Data security / privacy on premises side 9
4.2.4 Customer Energy Management System security 9
4.3 Device type agnostic energy management 9
4.4 Clock alignment 9
5 Background 9
6 Smart Grid premises side Architecture 12
6.1 General 12
6.2 Smart Grid Connection Point (SGCP) 14
6.3 Energy Management Gateway (EMG) 14
6.4 Interface S1 15
6.5 Customer Energy Manager (CEM) 15
6.6 Interface S2 16
6.7 Resource manager 16
6.8 HBES, SASS and Smart Devices 17
7 User Stories and Use Cases 17
7.1 Requirements for interoperability 17
7.2 Determining the requirements for Interface S2 18
7.3 Extensibility of S2 Requirements 18
Annex A (informative) Use Case example 19
Bibliography 22
European foreword
This document (EN 50491-12-1:2018) has been prepared by the Technical Committee CLC/TC 205, “Home
and Building Electronic Systems (HBES)”.
The following dates are fixed:
• latest date by which this document has (dop) 2019-06-18
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2021-06-18
standards conflicting with this document
have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission and the
European Free Trade Association.
EN 50491-12-1 is part of the EN 50491 series of European Standards - General requirements for Home and
Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS) - which will
comprise the following parts:
— Part 1: General requirements;
— Part 2: Environmental Conditions;
— Part 3: Electrical Safety Requirements;
— Part 4-1: General functional safety requirements for products intended to be integrated in Building
Electronic Systems (HBES) and Building Automation and Control Systems (BACS);
— Part 5-1: EMC requirements, conditions and test set-up;
— Part 5-2: EMC requirements for HBES/BACS used in residential, commercial and light industry
environment;
— Part 5-3: EMC requirements for HBES/BACS used in industry environment
— Part 6-1: HBES installations - Installation and planning;
— Part 6-3: HBES installations - Assessment and definition of levels;
— Part 11: Smart Metering – Application Specification – Simple External Consumer Display;
— Part 12: Smart grid - Application specification - Interface and framework for customer;
— Part 12-1: Interface between the CEM and Home/Building Resource manager– General Requirements and
Architecture
— Future Part 12-2: Interface between the Home/Building CEM and Resource manager(s)– Data model and
messaging
— Future Part 12-3: Home/Building Customer Energy Manager (CEM)
— Future Part 12-4: Resource manager
Introduction
Traditional electricity networks make use of a primarily one-way flow of energy and communication from the
generator to the consumer via the transmission and distribution systems.
Although there is some monitoring and control of equipment in the transmission and distribution systems, there
is no communication with, or control of, consumer equipment. In particular, there is no means of requesting
short-term control of consumer equipment according to generation and/or transmission/distribution grid
conditions. Generation equipment is controlled according to the open-ended (uncontrolled) demand of the
consumer.
Today we are faced with an increase of energy consumption, this is directly connected to an increase of CO
production. The increased CO density in the atmosphere supports the climate warming of the earth.
One significant way to cope with the increased energy consumption without increasing the CO production is to
use more renewable energy resources.
Unfortunately, the available renewable energy supply is not aligned with the energy demand. To increase
efficiency, the energy demand should be aligned as much as possible with the available energy supply. To
reach this goal communication between the various equipment and systems of the stakeholders within the
energy field is necessary. This grid, exchanging information and energy between producers, consumers,
distributors and metering is known as the “Smart Grid”.
The EN 50491-12 series describes aspects of this smart grid that relate specifically to the premises
(home/building) part of the smart grid, including the common interface between equipment in the premises and
the smart grid.
1 Scope
This document specifies General Requirements and Architecture of an application layer interface between the
Customer Energy Manager (CEM) and Smart Devices (SD) operating within the smart grid premises-side
system (i.e. home or building but not industrial premises).
This document does not include requirements for:
– Safety;
– EMC;
– Data security; it is assumed that the underlying protocols will take the data security aspect into account;
NOTE Although data security is not within the scope of this standard, in Clause 4 some high-level design guidelines
for data security are provided.
– Special equipment (e.g. legacy heat pumps) with a direct physical connection to the grid, as such equipment
bypasses the CEM and is not HBES/BACS enabled (covered by other standards than the
EN 50491 series).
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 50491-12, (all parts), General requirements for Home and Building Electronic Systems (HBES) and Building
Automation and Control Systems
3 Terms, definitions and abbreviations
3.1 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 http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
Customer Energy Manager
CEM
internal automation function for optimizing the energy consumption, production and storage within the premises
according to the preferences of the customer using internal flexibilities and typically based on external
information received through the Smart Grid Connection Point and possibly other data sources
3.1.2
Customer Energy Manager System
CEM system
allows the management of energy consumption, production and storage within the premises, consisting of a
CEM connected to one or more Resource Managers which themselves act as gateways to HBES / BACS, SASS
and / or Smart Appliances
3.1.3
Energy Management Gateway
EMG
access point (functional entity) sending and receiving smart grid related information and commands between
an actor in the Grid and the CEM, letting the CEM decide how to process the events
Note 1 to entry: The communication is often ensured through an internet connection.
3.1.4
Head End System
HES
system that receives metering data in the advanced metering infrastructure
3.1.5
Home and Building Electronic Systems / Building Automation Control Systems
HBES / BACS
logical group of devices which uses a multi-application communication system where the functions are
distributed and linked through a common communication process
Note 1 to entry: HBES/BACS is used in homes and buildings plus their surroundings. Functions of the system are e.g.:
switching, open loop controlling, closed loop controlling, monitoring and supervising.
Note 2 to entry: In literature, HBES/BACS may be referred also as “home control system/network“, „home electronic
systems” “building automation systems” etc.
Note 3 to entry: Examples of HBES/BACS applications are the management of lighting, heating, energy, water, fire alarms,
blinds, different forms of security, etc.”. See introduction in EN 50491–4-1.
3.1.6
schema
abstract model that documents and organizes the data required in a defined way, so it can be used for different
purposes such as exchanging and / or storing information
3.1.7
Local Network Access Point
LNAP
specific Network Interface controller between the Local Network (within the premises) and a system acting as
back-end for the metering communication, which controls and monitors the communication to metering devices
(instruments for measuring, memorizing data related to the consumption of commodity)
3.1.8
Meter Data Management
MDM
software system that performs long-term data storage and management for the vast quantities of data delivered
by smart metering systems
3.1.9
resource manager
software component that exclusively represents a logical group of devices or a single smart device, and is
responsible for sending unambiguous instructions to the logical group of devices or to a single device, typically
using a device-specific protocol
Note 1 to entry: In the context of this document the Resource Manager manages the energy flexibility of a logical group of
devices or a single smart device.
Note 2 to entry: The Resource Manager may be implemented in a special device, in the smart device itself or outside of
the device
3.1.10
Neighbourhood Network Access Point
NNAP
specialized Network Interface Controller between the Neighbourhood Network and Wide Area Network (WA
...