EN 14908-1:2014

Open Data Communication in Building Automation, Controls and Building Management - Control Network Protocol - Part 1: Protocol Stack

This European Standard applies to a communication protocol for networked control systems in commercial Building Automation, Controls and Building Management. The protocol provides peer-to-peer communication for networked control and is suitable for implementing both peer-to-peer and master-slave control strategies. This specification describes services in layers 2 to 7. In the layer 2 (data link layer) specification, it also describes the MAC sub-layer interface to the physical layer. The physical layer provides a choice of transmission media. The interface described in this specification supports multiple transmission media at the physical layer. In the layer 7 specification, it includes a description of the types of messages used by applications to exchange application and network management data.

Offene Datenkommunikation für die Gebäudeautomation und Gebäudemanagement – Gebäude-Netzwerk-Protokoll - Teil 1: Datenprotokollschichtenmodell

Réseau ouvert de communication de données pour l'automatisation, la régulation et la gestion technique du bâtiment - Protocole de contrôle du réseau - Partie 1: Niveaux du protocole

La présente Norme européenne s'applique à un protocole de communication pour les systèmes de contrôlecommande
en réseau pour l'automatisation, la régulation et la gestion technique des bâtiments commerciaux.
Le protocole permet les communications de poste à poste pour le contrôle-commande en réseau et est
utilisable pour mettre en oeuvre les deux stratégies poste à poste et maître-esclave. Ces spécifications
décrivent les services afférents aux couches 2 à 7. Dans les spécifications de la couche 2 (DLL, Data Link
Layer), la sous-couche MAC (Media Access Control), interface avec la couche physique, est aussi décrite. La
couche physique procure un choix de supports de communication. L'interface décrite dans ces spécifications
permet de prendre en charge plusieurs supports de communication de la couche physique. Dans les
spécifications de la couche 7, se trouve une description des types de messages utilisés par les applications
pour échanger des données de gestion de l'application et du réseau de communication.

Odprta izmenjava podatkov v avtomatizaciji stavb in izvršnih elementov ter pri upravljanju stavb - Protokol regulacijske mreže - 1. del: Protokolarni sklad

Standard EN 14908-1 velja za komunikacijski protokol za mrežne krmilne sisteme v komercialni avtomatizaciji stavb in izvršnih elementov ter pri upravljanju stavb. Protokol zagotavlja komunikacijo vsak-z-vsakim za mrežno krmiljenje in je primeren za uporabo pri uvajanju nadzornih strategij na osnovi razmerja vsak-z-vsakim in nadrejeni-podrejeni. Ta specifikacija opisuje storitve v slojih 2 do 7. V specifikaciji sloja 2 (podatkovno-povezovalni sloj) je opisana tudi povezava med podslojem MAC in fizičnim slojem. Fizični sloj ponuja izbiro različnih prenosnih medijev. Povezava, opisana v tej specifikaciji, podpira več prenosnih medijev na fizičnem sloju. V specifikaciji sloja 7 so opisane vrste sporočil, ki jih uporabljajo aplikacije za izmenjevanje podatkov o aplikacijah in upravljanju omrežja.

General Information

• Status: Published
• Publication Date: 29-Apr-2014
• ICS: 35.240.67 - IT applications in building and construction industry
• ICS: 35.240.99 - IT applications in other fields
• ICS: 91.140.01 - Installations in buildings in general
• ICS: 97.120 - Automatic controls for household use
• Technical Committee: CEN/TC 247 - Controls for mechanical building services
• Drafting Committee: CEN/TC 247/WG 4 - Open System Data Transmission
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 23-Feb-2020
• Mandate: M/490 - Standardisation mandate to the European Standardisation Organisations (ESOs) to support European Smart Grid deployment
• Ref Project: SIST EN 14908-1:2014 - Open Data Communication in Building Automation, Controls and Building Management - Control Network Protocol - Part 1: Protocol Stack

Relations

• Replaces: EN 14908-1:2005 - Open Data Communication in Building Automation, Controls and Building Management - Control Network Protocol - Part 1: Protocol Stack
• Effective Date: 22-Dec-2008

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Odprta izmenjava podatkov v avtomatizaciji stavb in izvršnih elementov ter pri upravljanju stavb - Protokol regulacijske mreže - 1. del: Protokolarni skladFirmenneutrale Datenkommunikation für die Gebäudeautomation und Gebäudemanagement - Gebäudedatennetzprotokoll - Teil 1: DatenprotokollschichtenmodellRéseau ouvert de communication de donées pour l'automatisation, la régulation et la gestion technique du bâtiment - Protocole de bâtiment du réseau - Partie 1 : Spécifications du protocoleOpen Data Communication in Building Automation, Controls and Building Management - Control Network Protocol - Part 1: Protocol Stack97.120Avtomatske krmilne naprave za domAutomatic controls for household use35.240.99IT applications in other fieldsICS:Ta slovenski standard je istoveten z:EN 14908-1:2014SIST EN 14908-1:2014en,fr,de01-julij-2014SIST EN 14908-1:2014SLOVENSKI
STANDARDSIST EN 14908-1:20061DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14908-1
April 2014 ICS 35.240.99; 91.140.01; 97.120 Supersedes EN 14908-1:2005English Version
Open Data Communication in Building Automation, Controls and Building Management - Control Network Protocol - Part 1: Protocol Stack
Réseau ouvert de communication de données pour l'automatisation, la régulation et la gestion technique du bâtiment - Protocole de contrôle du réseau - Partie 1: Niveaux du protocole
Offene Datenkommunikation für die Gebäudeautomation und Gebäudemanagement - Gebäude-Netzwerk-Protokoll -Teil 1: Datenprotokollschichtenmodell This European Standard was approved by CEN on 12 April 2013.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14908-1:2014 ESIST EN 14908-1:2014

Contents Foreword .5 Introduction .6 1 Scope.7 2 Normative references .7 3 Terms and definitions .7 4 Symbols and abbreviations .9 4.1 Symbols and graphical representations .9 4.2 Abbreviations . 10 5 Overview of protocol layering . 11 6 MAC sublayer . 13 6.1 General . 13 6.2 Service provided . 13 6.3 Interface to the link layer . 13 6.4 Interface to the physical layer . 14 6.5 MPDU format . 15 6.6 Predictive p-persistent CSMA — overview description . 15 6.7 Idle channel detection . 16 6.8 Randomising . 17 6.9 Backlog estimation . 17 6.10 Optional priority . 18 6.11 Optional collision detection . 19 6.12 Beta1, Beta2 and Preamble Timings . 20 7 Link layer . 22 7.1 Assumptions . 22 7.2 Service provided . 22 7.3 CRC. 22 7.4 Transmit algorithm . 23 7.5 Receive Algorithm . 23 8 Network layer . 23 8.1 Assumptions . 23 8.2 Service provided . 25 8.3 Service interface . 25 8.4 Internal structuring of the network layer . 26 8.5 NPDU format . 26 8.6 Address recognition . 27 8.7 Routers . 27 8.8 Routing algorithm . 28 8.9 Learning algorithm — subnets . 28 9 Transaction control sublayer . 28 9.1 Assumptions . 28 9.2 Service provided . 29 9.3 Service interface . 29 9.4 State variables . 30 SIST EN 14908-1:2014

9.5 Transaction control algorithm . 30 10 Transport layer . 31 10.1 Assumptions . 31 10.2 Service provided . 31 10.3 Service interface . 31 10.4 TPDU types and formats . 32 10.5 Protocol diagram . 33 10.6 Transport protocol state variables . 34 10.7 Send algorithm . 34 10.8 Receive algorithm . 34 10.9 Receive transaction record pool size and configuration engineering . 34 11 Session layer . 37 11.1 Assumptions . 37 11.2 Service Provided . 37 11.3 Service interface . 38 11.4 Internal structure of the session layer . 38 11.5 SPDU types and formats . 39 11.6 Protocol timing diagrams . 40 11.7 Request-response state variables . 43 11.8 Request-response protocol — client part . 43 11.9 Request-response protocol — server part . 43 11.10 Request-response protocol timers . 44 11.11 Authentication protocol. 44 11.12 Encryption algorithm . 44 11.13 Retries and the role of the checksum function . 44 11.14 Random Number Generation . 45 11.15 Using Authentication . 45 12 Presentation/application layer . 45 12.1 Assumptions . 45 12.2 Service provided . 45 12.3 Service interface . 46 12.4 APDU types and formats .
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