SIST EN 50090-1:2011
(Main)Home and Building Electronic Systems (HBES) - Part 1: Standardization structure
Home and Building Electronic Systems (HBES) - Part 1: Standardization structure
This European Standard concentrates on control applications for Home and Building HBES Open
Communication System and covers any combination of electronic devices linked via a digital transmission network. Home and Building Electronic System as provided by the HBES Open Communication System is a specialized form of automated, decentralised and distributed process
control, dedicated to the needs of home and building applications.
The EN 50090 series concentrates on HBES Open Communication System Class 1 and includes a
specification for a communication network for Home and Building for example for the control of
lighting, heating, food preparation, washing, energy management, water control, fire alarms, blinds
control, different forms of security control, etc.
This European Standard gives an overview of the features of the HBES Open Communication System and provides the reader with references to the different parts of EN 50090 series.
This European Standard is used as a product family standard. It is not intended to be used as a standalone standard.
Elektrische Systemtechnik für Heim und Gebäude (ESHG) - Teil 1: Aufbau der Norm
Systèmes électroniques pour les foyers domestiques et les bâtiments (HBES) - Partie 1: Structure de la norme
La présente Norme européenne se concentre sur des applications de contrôle/commande dans le cadre d’un Système ouvert de communication pour foyers domestiques et bâtiments HBES et couvre toute combinaison de dispositifs électroniques reliés par l'intermédiaire d'un réseau de transmission numérique. Un Système électronique pour les foyers domestiques et les bâtiments tel que fourni par le Système ouvert de communication HBES est une forme spécialisée de contrôle de processus automatique, décentralisé et distribué, dédié aux besoins des applications pour foyers domestiques et bâtiments.
La série EN 50090 se concentre sur le Système ouvert de communication HBES de Classe 1 et comporte une spécification de réseau de communication pour foyers domestiques et bâtiments par exemple, pour contrôler l'éclairage, le chauffage, la préparation de la nourriture, le lavage, la gestion de l'énergie, le contrôle de l'eau, les alarmes incendie, le contrôle de volets, différentes formes de contrôle de sécurité, etc.
La présente Norme européenne fournit une vue d'ensemble des caractéristiques du Système ouvert de communication HBES et fournit au lecteur des références aux différentes parties de la série EN 50090.
La présente Norme européenne est utilisée en tant que norme de famille de produits. Elle n'est pas destinée à être utilisée en tant que norme indépendante.
Elektronski sistemi za stanovanja in zgradbe (HBES) - 1. del: Struktura standarda
Ta evropski standard se osredotoča na nadzorne aplikacije odprtega komunikacijskega elektronskega sistema za stanovanja in zgradbe (HBES) ter zajema vse kombinacije elektronskih pripomočkov, povezanih prek digitalnega prenosnega omrežja.
Elektronski sistem za stanovanja in zgradbe, kot ga zagotavlja odprti komunikacijski sistem HBES, je specializirana oblika avtomatiziranega, decentraliziranega in porazdeljenega procesnega nadzora, namenjenega potrebam uporabe v stanovanjih in zgradbah.
Serija EN 50090 se osredotoča na odprti komunikacijski sistem HBES razreda I in vključuje specifikacijo za komunikacijsko omrežje za stanovanja in zgradbe, na primer za nadzor osvetljave, ogrevanja, priprave hrane, pranja, upravljanja z energijo, nadzor vode, požarnih alarmov, senčnikov, različne oblike varnostnega nadzora itd.
Ta evropski standard podaja pregled značilnosti odprtega komunikacijskega sistema HBES in bralcu zagotavlja sklice na različne dele serije EN 50090.
Ta evropski standard se uporablja kot standard za družino proizvodov. Ni namenjen samostojni uporabi.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 50090-1:2011
01-maj-2011
1DGRPHãþD
SIST EN 50090-2-1:1997
Elektronski sistemi za stanovanja in zgradbe (HBES) - 1. del: Struktura standarda
Home and Building Electronic Systems (HBES) - Part 1: Standardization structure
Elektrische Systemtechnik für Heim und Gebäude (ESHG) - Teil 1: Aufbau der Norm
Systèmes électroniques pour les foyers domestiques et les bâtiments (HBES) - Partie 1:
Structure de la norme
Ta slovenski standard je istoveten z: EN 50090-1:2011
ICS:
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
SIST EN 50090-1:2011 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 50090-1:2011
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SIST EN 50090-1:2011
EUROPEAN STANDARD
EN 50090-1
NORME EUROPÉENNE
February 2011
EUROPÄISCHE NORM
ICS 97.120 Supersedes EN 50090-2-1:1994
English version
Home and Building Electronic Systems (HBES) -
Part 1: Standardization structure
Systèmes électroniques pour les foyers Elektrische Systemtechnik für Heim und
domestiques et les bâtiments (HBES) - Gebäude (ESHG) -
Partie 1: Structure de la norme Teil 1: Aufbau der Norm
This European Standard was approved by CENELEC on 2011-02-21. 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 Central Secretariat 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 Central Secretariat 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50090-1:2011 E
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SIST EN 50090-1:2011
EN 50090-1:2011 – 2 –
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 205, Home and
Building Electronic Systems, joined by the co-operating partner Konnex Association.
The text of the draft was submitted to the Unique Acceptance Procedure and was accepted by
CENELEC as EN 50090-1 on 2011-02-21.
This document supersedes EN 50090-2-1:1994.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement
(dop) 2012-02-21
– latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow) 2014-02-21
EN 50090-1 is part of the EN 50090 series “Home and Building Electronic Systems (HBES)”,
which will comprise the following parts (see Clause 2 for further details):
Part 1: Standardization structure;
Part 2: Void;
NOTE EN 50090-2-1:1994 is incorporated and superseded by this Part 1.
EN 50090-2-2:1996 and its amendments are incorporated and superseded by EN 50491-3:2009,
EN 50491-5-1:2010, EN 50491-5-2:2010 and EN 50491-5-3:2010.
EN 50090-2-3:2005 will be incorporated and superseded by the EN 50491 series.
Part 3: Aspects of application;
Part 4: Transport layer and network layer;
Part 5: Media and media dependent layers;
Part 6: Interfaces;
Part 7: Management;
Part 8: Conformity assessment of products;
Part 9: Installation requirements.
__________
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Contents
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviations . 7
3.1 Terms and definitions . 7
3.2 Abbreviations . 8
4 General requirements . 8
5 Elements of the HBES Open Communication System Architecture . 8
5.1 General . 8
5.2 Applications, Interworking and Binding . 9
5.3 Configuration . 9
5.4 Network Management and Resources . 9
5.5 Communication: Physical Layers .10
5.6 Communication: Common Kernel and Message Protocol .11
5.7 Resources.12
5.8 Device Models .12
5.9 Device identification .12
6 System Capabilities, Communication and Addressing Models .13
6.1 General .13
6.2 Logical Topology and Individual Address Space .13
6.3 Network & Resource Management with Broadcast and Unicast “Point-To-Point”
Services .14
6.4 Multicast “Group Addressing” for Run-time Efficiency .14
6.5 Frame Overview .14
7 Application Models, Datapoints and Binding .15
7.1 General .15
7.2 Datapoints and Distributed Applications .15
7.3 Group objects .15
7.4 Properties of Interface Objects as Datapoints .16
8 Interworking Model .16
8.1 General .16
8.2 The Application: Datapoint Types and Functional Blocks .16
8.3 Parameter Datapoints .17
Annex A (informative) Overview of Home and Building Electronic Systems (HBES) and
Building Automation and Control Systems (BACS) (EN 50491 series) and HBES Open
Communication System (EN 50090 series) .18
Bibliography .20
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SIST EN 50090-1:2011
EN 50090-1:2011 – 4 –
Figures
Figure 1 – The HBES Open Communication System Model . 8
Figure 2 – The logical topology of HBES Open Communication System .13
Figure 3 – HBES Open Communication System LPDU standard frame structure (long frames allow N
< 255) .14
Tables
Table A.1 – Home and Building Electronic Systems (HBES) and Building Automation and Control
Systems (BACS) (EN 50491 series) .18
Table A.2 – HBES Open Communication System (EN 50090 series) .19
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Introduction
This European Standard outlines the main elements of the HBES Open Communication System and
the concept behind it. It should be used as a guideline for the EN 50090 series.
Home and Building Electronic Systems as provided by the HBES Open Communication System are a
specialized form of automated, decentralised and distributed process control, dedicated to the needs
of home and building applications.
The specification of the HBES Open Communication System provides, besides runtime
characteristics, a “toolkit” of services and mechanisms for network management.
On the HBES Open Communication System Device Network, all devices form distributed applications,
which are able to interact with one another taking into account Interworking rules (standardized
Datapoint Types and “Functional Block” objects, modelling logical device channels). This run-time
Interworking allows the creation of a comprehensive and multi-domain home and building
communication system
The available communication media range from Twisted Pair to Powerline and 868 MHz band Radio
Frequency.
The HBES Open Communication system is independent of any specific microprocessor platform or
architecture. Depending on the profile chosen by the manufacturer, any suitable industry-standard
chip can be chosen. Some HBES Open Communication System profiles allow a tiny system footprint
(say < 5 kbit) and can run on an 8-bit processor. Implementations can however also be realised on 16-
or 32-bit processors, or even PC’s.
The features of HBES Open Communication System allow its use in different application domains and
installation types, and also in “Service Network” environments (usually based on broadband networks
running IP, the Internet Protocol). To address this need, the transmission of HBES Open
Communication System frames across an IP network has been standardised in EN 50090-4-3:2007.
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SIST EN 50090-1:2011
EN 50090-1:2011 – 6 –
1 Scope
This European Standard concentrates on control applications for Home and Building HBES Open
Communication System and covers any combination of electronic devices linked via a digital
transmission network. Home and Building Electronic System as provided by the HBES Open
Communication System is a specialized form of automated, decentralised and distributed process
control, dedicated to the needs of home and building applications.
The EN 50090 series concentrates on HBES Open Communication System Class 1 and includes a
specification for a communication network for Home and Building for example for the control of
lighting, heating, food preparation, washing, energy management, water control, fire alarms, blinds
control, different forms of security control, etc.
This European Standard gives an overview of the features of the HBES Open Communication System
and provides the reader with references to the different parts of EN 50090 series.
This European Standard is used as a product family standard. It is not intended to be used as a stand-
alone standard.
2 Normative references
The following referenced documents are indispensable for the application 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 50090-3-1 1994 Home and Building Electronic Systems (HBES) – Part 3-1: Aspects of
application – Introduction to the application structure
EN 50090-3-2 2004 Home and Building Electronic Systems (HBES) – Part 3-2: Aspects of
application – User process for HBES Class 1
EN 50090-3-3 2009 Home and Building Electronic Systems (HBES) – Part 3-3: Aspects of
application – HBES Interworking model and common HBES data types
EN 50090-4-1 2004 Home and Building Electronic Systems (HBES) – Part 4-1: Media
independent layers – Application layer for HBES Class 1
EN 50090-4-2 2004 Home and Building Electronic Systems (HBES) – Part 4-2: Media
independent layers – Transport layer, network layer and general parts of
data link layer for HBES Class 1
EN 50090-4-3 2007 Home and Building Electronic Systems (HBES) – Part 4-3: Media
independent layers – Communication over IP (EN 13321-2:2006)
EN 50090-5-1 2005 Home and Building Electronic Systems (HBES) – Part 5-1: Media and
media dependent layers – Power line for HBES Class 1
EN 50090-5-2 2004 Home and Building Electronic Systems (HBES) – Part 5-2: Media and
media dependent layers – Network based on HBES Class 1, Twisted
Pair
EN 50090-5-3 2006 Home and Building Electronic Systems (HBES) – Part 5-3: Media and
media dependent layers – Radio frequency
EN 50090-7-1 2004 Home and Building Electronic Systems (HBES) – Part 7-1: System
management – Management procedures
EN 50090-8 2000 Home and Building Electronic Systems (HBES) – Part 8: Conformity
assessment of products
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EN 50090-9-1 2004 Home and Building Electronic Systems (HBES) – Part 9-1: Installation
requirements – Generic cabling for HBES Class 1 Twisted Pair
CLC/TR 50090-9-2 2007 Home and Building Electronic Systems (HBES) – Part 9-2: Installation
requirements – Inspection and testing of HBES installation
EN 50491-2 2010 General requirements for Home and Building Electronic Systems
(HBES) and Building Automation and Control Systems (BACS) –
Part 2: Environmental conditions
EN 50491-3 2009 General requirements for Home and Building Electronic Systems
(HBES) and Building Automation and Control Systems (BACS) –
Part 3: Electrical safety requirements
EN 50491-5-1 2010 General requirements for Home and Building Electronic Systems
(HBES) and Building Automation and Control Systems (BACS) –
Part 5-1: EMC requirements, conditions and test set-up
EN 50491-5-2 2010 General requirements for Home and Building Electronic Systems
(HBES) and Building Automation and Control Systems (BACS) –
Part 5-2: EMC requirements for HBES/BACS used in residential,
commercial and light industry environment
EN 50491-5-3 2010 General requirements for Home and Building Electronic Systems
(HBES) and Building Automation and Control Systems (BACS) –
Part 5-3: EMC requirements for HBES/BACS used in industry
environment
CLC/TR 50552 2010 Home and Building Electronic Systems (HBES) – Open communication
system – Interfaces – Medium interface, twisted pair, class 1
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
Home and Building Electronic Systems (HBES)
communication system on which elements or entities of several applications are distributed and
logically linked together via one or more networks
3.1.2
HBES Open Communication System
HBES according to EN 50090 series
3.1.3
HBES Class 1
HBES with transport capabilities for applications such as:
– control;
– monitoring;
– measurement;
– alarm;
– low speed data transfer
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EN 50090-1:2011 – 8 –
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply:
IP Internet Protocol
TPCI Transport Layer Protocol Control Information
APCI Application Layer Protocol Control Information
LPDU Link Layer Protocol Data Unit
4 General requirements
A product claiming compliance with EN 50090 shall comply with the full set of EN 50090 series,
according to the selected media, and with the relevant parts of EN 50491 series listed under Clause 2.
5 Elements of the HBES Open Communication System Architecture
5.1 General
The HBES Open Communication System specification contains a number of mechanisms to bring the
network into operation but leaves the possibility for the implementer to choose the most adapted
configuration Figure 1 shows an overview of the HBES Open Communication System model.
Common Object definitions
N
Configuration
System Management
E
T
W
O
Runtime
R
Common Run Time
K
Interworking
M
7
A
N
A
G
E
Communication
M
Common
E
N
Kernel
T
3
Standard Addressing
2
Media
Ether
PL110 PL132
1
TP1 TP0 RF
Coupler
net
between Media
Figure 1 – The HBES Open Communication System Model
The following constitute the essential ingredients of the HBES Open Communication System:
• Interworking and (Distributed) Application Models for the various tasks of Home and Building
Automation. These are described in EN 50090-3-2 and EN 50090-3-3 (Aspects of application –
HBES Interworking model and common HBES data types).
• Schemes for Configuration and Management, to properly manage all resources on the network,
and to permit the logical linking or binding of parts of a distributed application, which run in
different devices. These are structured in a set of Management Procedures as described in
EN 50090-7-1.
Profile 1
Profile 2
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• Communication System, with a set of physical communication media, a message protocol and
corresponding models for the communication stack in each node; this Communication System has
to support all network communication requirements for the Configuration and Management of an
installation, as well as to host Distributed Applications on it. This is typified by the HBES Open
Communication System Common Kernel. These are described in EN 50090-5 series (for the
different supported media) and in EN 50090-4 series (for the media independent layers).
• Concrete Device Models, summarized in Profiles for the effective realization and combination of
the elements above when developing actual products or devices, which will be mounted and
linked in an installation. These are described in EN 50090-9-1, CLC/TR 50090-9-2 and
CLC/TR 50552.
A more detailed description of the above-mentioned elements is given below.
5.2 Applications, Interworking and Binding
Central to HBES Open Communication System application concepts is the idea of Datapoints: they
represent the process and control variables in the system, as explained in EN 50090-3 series. These
Datapoints may be inputs, outputs, parameters, diagnostic data etc. The standardized containers for
these Datapoints are Group Objects and Interface Object Properties.
The Communication System and Protocol are expected to offer a reduced instruction set to read and
write (set and get) Datapoint values: any further application semantics is mapped to the data format
and the bindings, making the HBES Open Communication System primarily “data driven”.
In order to achieve Interworking, the Datapoints have to implement Standardized Datapoint Types,
themselves grouped into Functional Blocks. These Functional Blocks and Datapoint Types are related
to applications fields, but some of them are of general use and named functions of common interest
(such as date and time).
Datapoints may be accessed through unicast or multicast mechanisms.
Clause 8 zooms in on these aspects.
5.3 Configuration
There are two levels at which an installation has to be configured. First of all, there is the level of the
network topology and the individual nodes or devices.
In a way, this first level is a precondition, prior to the configuration of the Distributed Applications, i.e.
binding and parameter setting.
Configuration may be achieved through a combination of local manipulations on the devices (e.g.
pushing a button, setting a code wheel, or using a locally connected configuration tool), and active
Network Management communication over the bus (peer-to-peer as well as more centralized master-
slave schemes).
5.4 Network Management and Resources
To accommodate all active configuration needs of the system, HBES Open Communication System is
equipped with a toolkit for network management. These instruments can be used throughout the
lifecycle of an installation: for initial set-up, for integration of multi-mode installations, for subsequent
diagnostics and maintenance, as well as for later extension and reconfiguration.
Network Management in the HBES Open Communication System specifies a set of mechanisms to
discover, set or retrieve configuration data actively via the network. It proposes Procedures (i.e.
message sequences) to access values of the different network resources within the devices, as well
as identifiers and formats for these resources – all of this in order to enable a proper Interworking of all
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EN 50090-1:2011 – 10 –
HBES Open Communication System network devices. These resources may be addresses,
communication parameters, application parameters, or complex sets of data like binding tables or
even the entire executable application program.
The network management basically makes use of the services offered by the application layer as
specified in EN 50090-4-1. For configuration purposes, each device shall implement the services and
resources specified in the relevant “profile”.
For managing the devices, these services are used within procedures. Configuration can be ensured
via an identified set of procedures, which are described in EN 50090-7-1. Different solutions are
possible, ranging from the commissioning of devices by:
• a connected PC with installed software program, sometimes referred to as "System Mode". The
product data is either part of the tool or imported into a database of the tool. By means of these
product descriptions, the binding and parameterisation of products is realised;
• a connected Controller acting as a master device, scanning for devices on the network and
obtaining information on their features via a device descriptor sent by the connected devices. On
the basis of a database inside the controller and appropriate settings via a display on the
controller, the products are linked and parameterised. This type of configuration is sometimes
referred to as "Easy controller mode";
• activating actuators to acquire sensors as partner devices: only when devices send device
descriptors that can be linked, will the devices be linkable. Parameters in this case are often set
locally on the device. This type of configuration is referred to as "Push button mode";
• assigning semantically or geographical zoning tags to partner devices: only when the tag matches,
will devices be able to communicate to one another. This type of configuration is referred to as
"Logical Tag Reflex mode".
Underneath the Communication System’s messaging solutions for applications as well as
management are described, beginning with the physical transmission media.
5.5 Communication: Physical Layers
The HBES Open Communication System offers the choice for the manufacturers, depending on his
market requirements and habits, to choose between several physical layers, or to combine them. With
the availability of routers, and combined with the Interworking, multi-media, and also multi-vendor
configurations can be built.
The different media are:
a) TP 0 and TP 1, provide both improved solutions for twisted pair cabling, both using a SELV or
PELV network and supply system. Main characteristics are: data and power transmission with one
pair (devices with limited power consumption may be fed by the bus), and asynchronous character
oriented data transfer and half duplex bi-directional communication. TP 0 transmission rate is
2 400 bit/s while TP 1 is 9 600 bit/s. Both media implement CSMA/CA collision avoidance.
All topologies may be used and mixed (line, star, tree). These media are described in
EN 50090-5-2.
b) PL 110 and PL 132 enable communication over the mains supply network. Main characteristics
are: spread frequency shift keying signalling, asynchronous transmission of data packets and half
duplex bi-directional communication. Both differ mainly by their central frequency (110 kHz and
132 kHz), their decoding process, and data rate (PL 110 = 1 200 bit/s; PL 132 = 2 400 bit/s). Both
media implement CSMA and are compliant to EN 50065-1 (respectively in frequency band without
and with standard access medium protocol). These media are described in EN 50090-5-1.
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c) RF enables wireless communication in the 868 MHz radio frequency band. The main
characteristics are frequency shift keying signalling, asynchronous transmission and half duplex
bi-directional or unidirectional communication. The central frequency is 868,30 MHz for short-
range devices with duty cycle limited to < 1 %, and a data rate of 32 kHz. The medium access is
based on CSMA mechanisms. The medium and the lower part of the Data Link Layer have been
specified in common with CEN/TC 294 for metering, to be able to share hardware platforms.
HBES Open Communication System RF is compliant to ERC recommendation ERC/REC 70-03
and the ETSI EN 300 220 series. This medium is described in EN 50090-5-3.
d) Beyond these Device Network media, the HBES Open Communication System has unified service
and integration solutions for IP-enabled media like:
1) Ethernet (IEEE 802.2);
2) Bluetooth, Wi-Fi/Wireless LAN (IEEE 802.11);
3) “FireWire” (IEEE 1394), etc.,
as documented in EN 50090-4-3.
5.6 Communication: Common Kernel and Message Protocol
The Communication System must tend to the needs of the Application Models, Configuration and
Network Management. On top of the Physical Layers and their particular Data Link Layer, a Common
Kernel model is shared by all the devices of the HBES Open Communication System Network; in
order to answer all requirements, it includes a 7 Layers OSI model compliant communication system.
• Data Link Layer General, above Data Link Layer per medium, provides the medium access control
and the logical link control. This layer is described in EN 50090-4-2.
• Network Layer provides a segment wise acknowledged telegram; it also controls the hop count of
a frame. Network Layer is of interest mainly for nodes with routing functionality. This layer is
described in EN 50090-4-2.
• Transport Layer (TL) enables four types communication relationship between communication
points: one-to-many connectionless (multicast), one-to-all connectionless (broadcast), one-to-one
connectionless, one-to-one connection-oriented. For freely bound models (see below), TL also
separates (“indirect”) the network multicast address from the internal representation. This layer is
described in EN 50090-4-2.
• Session and presentation Layers are empty.
• Application Layer offers a “toolkit” variety of application services to the application process. These
services are different depending on the type of communication used at transport layer. Services
related to point-to-point communication and broadcast mainly serve to the network management,
whereas services related to multicast are intended for runtime operation. This layer is described in
EN 50090-4-1.
The HBES Open Communication System does not fix the choice of microprocessor. Since in addition,
the HBES Open Communication System allows a range of configuration and device models, the
precise requi
...
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