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STANDARD
SIST EN 14908-5:2009
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14908-5April 2009ICS 35.240.99; 91.140.01 English VersionOpen Data Communication in Building Automation, Controls andBuilding Management Implementation Guideline - ControlNetwork Protocol - Part 5: ImplementationRéseau ouvert de communication de données pourl'automatisation, la régulation et la gestion technique dubâtiment - Protocole de réseau pour le bâtiment - Partie 5 :ImplémentationFirmenneutrale Datenkommunikation für dieGebäudeautomation und Gebäudemanagement - GebäudeNetzwerk Protokoll - Teil 5: ImplementierungThis European Standard was approved by CEN on 1 September 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14908-5:2009: ESIST EN 14908-5:2009
EN 14908-5:2009 (E) 2 Contents Page Foreword . 5 Introduction . 6 1 Scope . 7 2 Normative references . 7 3 Terms and definitions . 7 3.1 application set . 7 3.2 base type . 7 3.3 changeable-type network variable . 8 3.4 configuration property CP . 8 3.5 configuration-property member . 8 3.6 configuration-property member number . 8 3.7 configuration-property type index . 8 3.8 device . 8 3.9 device channel ID . 8 3.10 device class . 8 3.11 device interface . 8 3.12 device-location field . 9 3.13 device self-documentation string DSDS . 9 3.14 device subclass . 9 3.15 dynamic functional block . 9 3.16 dynamic network variable . 9 3.17 format . 9 3.18 functional block . 9 3.19 functional-block index . 9 3.20 functional profile FP . 9 3.21 functional-profile key . 10 3.22 functional-profile member . 10 3.23 functional-profile member number . 10 3.24 functional-profile number . 10 3.25 functional-profile selector . 10 3.26 functional-profile template . 11 3.27 global index . 11 3.28 inheriting profile . 11 3.29 interoperability . 11 3.30 CNP device . 11 3.31 CNP network . 11 3.32 manufacturer ID MID . 11 3.33 network-interface selection . 11 3.34 network variable NV . 12 3.35 network-variable declaration . 12 3.36 network-variable index . 12 3.37 network-variable member . 12 3.38 network-variable member number . 12 3.39 network-variable programmatic name . 12 3.40 network-variable selection . 12 SIST EN 14908-5:2009
EN 14908-5:2009 (E) 3 3.41 network-variable type . 12 3.42 network-variable type index . 13 3.43 unique node ID . 13 3.44 node . 13 3.45 passive configuration tool PCT . 13 3.46 primary functional block . 13 3.47 primary functional profile. 13 3.48 proprietary data . 13 3.49 self-documentation string SD string . 13 3.50 self-documentation text . 14 3.51 shared-media channel . 14 3.52 standard configuration-property type SCPT . 14 3.53 standard network-variable type SNVT . 14 3.54 standard program ID SPID . 14 3.55 static functional block . 14 3.56 static network variable . 14 3.57 subsystem . 14 3.58 successful commissioning . 15 3.59 system . 15 3.60 unconfigured device . 15 3.61 usage . 15 3.62 usage ID . 15 3.63 user data . 15 3.64 wink function . 15 4 Device Interfaces . 15 4.1 General . 15 4.2 Unique Node ID . 16 4.3 Standard Program ID . 17 4.3.1 General . 17 4.3.2 Format Field . 17 4.3.3 Manufacturer Field . 17 4.3.4 Device Class Field . 17 4.3.5 Usage Field . 17 4.3.6 Channel Type Field . 18 4.3.7 Model Number Field . 18 4.4 Device Channel ID . 19 4.5 Device Location Field . 19 4.6 Device Self-Documentation String (DSDS). 20 4.7 Functional Blocks . 21 4.7.1 General . 21 4.7.2 Implementing a Functional Block . 22 4.7.3 Network Variables . 23 4.7.4 Configuration Properties . 30 4.8 Device and Functional Block Versioning . 39 4.9 Device Interface (XIF) File . 40 5 Resource Files . 40 5.1 Resource File Definitions . 40 5.1.1 General . 40 5.1.2 Type Definitions . 42 5.1.3 Functional Profiles . 44 5.1.4 Language Strings . 46 5.1.5 Formats . 47 5.2 Identifying Appropriate Resources . 50 5.2.1 Standard and User Resources . 50 SIST EN 14908-5:2009
EN 14908-5:2009 (E) 4 5.2.2 Using Standard Resources . 51 5.2.3 Using User Resources . 51 6 Network Installation . 52 6.1 General . 52 6.2 Network Addressing . 52 6.2.1 Network Addressing Scheme . 52 6.2.2 Address-Table Entries . 53 6.2.3 Network Variable Aliases . 54 6.2.4 Domain-Table Entries. 54 6.2.5 Self-Installed Devices. 54 6.2.6 Field-Installed Devices . 55 6.3 Passive Configuration Tools . 55 6.4 Service Pin. 56 6.5 Gateways to Command-Based Systems . 56 6.6 Shared-Media Considerations . 57 Bibliography. 58
SIST EN 14908-5:2009
EN 14908-5:2009 (E) 5 Foreword This document (EN 14908-5:2009) has been prepared by Technical Committee CEN/TC 247 “Building automation and controls and building management”, the secretariat of which is held by SNV. 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 October 2009, and conflicting national standards shall be withdrawn at the latest by October 2009. This standard is part of a series of standards for open data transmission in building automation, control and in building management systems. The content of this standard covers the data communications used for management, automation/control and field functions. The EN 14908-5 is part of a series of European Standards under the title, Open Data Communication in Building Automation, Controls and Building Management — Control Network Protocol (CNP), which comprises the following parts: Part 1: Protocol Stack
Part 2: Twisted Pair Communication Part 3: Power Line Channel Specification Part 4: IP Communication Part 5: Implementation Part 6: Application elements Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
SIST EN 14908-5:2009
EN 14908-5:2009 (E) 6 Introduction This document specifies the Layered Implementation Guidelines (LIG) for the Control Network Protocol (CNP) Specification: EN 14908-1:2005. The CNP specification model is based on the ISO Open Systems Interconnection Reference Model. There are also important extensions to the 7-layer OSI Reference Model. Figure 1 shows the scope of this specification in reference to the CNP and companion specifications for handling various data-transport media at the lower ISO protocol layers. A dashed line is used to show that the scope of this document is not treated as redundant, compared with other specifications covering their respective layers but as a complement to those specifications in implementing them in an interoperable fashion. In this document, the guidelines for implementing a device based on CNP are specified to increase the ability for devices to interoperate regardless of the installer or manufacturer of the devices. Anything outside this boundary is covered in other parts of the standard. Similar specifications exist for CNP data-transport media. This standard has been prepared to provide mechanisms through which various vendors of building automation, control, and of building-management systems, may exchange information in a standardised way. It defines communication and internal-documentation requirements. This standard is contributing to the general European policy for energy savings particularly in the field of the “Energy Performance of Building Directive” and the Construction Products Directive (ER No. 6 “Energy Economy and Heat Retention”).
Figure 1 — Scope of this specification SIST EN 14908-5:2009
EN 14908-5:2009 (E) 7 1 Scope This specification provides mechanisms through which various vendors of networked control systems in commercial building automation, control, and building management may exchange information in a standardised way. This specification contains all the information necessary to facilitate the exchange of data and control information in an interoperable fashion using EN 14908-1 and its associated data-transport media specifications.
This specification establishes a minimal set of rules for compliance. It does not rule-out extended services to be provided, given that the rules are adhered-to within the system. It is the intention of the standard to permit extended services to coexist and defines the bounds in which those services function, including the format for internal device-documentation of those services. Services outside purvey of this specification so long as they are adherents of the system are permitted but will not necessarily be interoperable with any other devices and shall not be essential for the functioning of the device. Certain aspects of this standard are defined in other documents. These documents are referenced where relevant. In the case where a referenced standard conflicts with this document, this document will prevail. 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 14908-1:2005 Open Data Communication in Building Automation, Controls and Building Management — Control Network Protocol — Part 1: Protocol Stack prEN 14908-6, Open Data Communication in Building Automation, Controls and Building Management — Control Network Protocol — Part 6: Application elements 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14908-1:2005 and the following apply. 3.1
application set
function block or function blocks to which a configuration property applies EXAMPLE A network variable, a series or compilation of network variables, a functional block, a series or compilation of functional blocks, or the entire device. 3.2
base type
fundamental type that can be used as the basis of a network-variable type or configuration-property type
NOTE The available base types are defined in 5.1.2.2. SIST EN 14908-5:2009
EN 14908-5:2009 (E) 8 3.3
changeable-type network variable
network variable whose type can be changed during installation NOTE See 4.7.3.3. 3.4
configuration property CP data value used to configure the application program in a device NOTE Configuration properties are used to set parameters such as maximum, minimum, default, and override values. CPs are implemented using configuration network variables or as data items within configuration files. Configuration-property data are kept in a device’s non-volatile memory. 3.5
configuration-property member part of a functional profile NOTE See 3.22. 3.6
configuration-property member number part of a functional profile NOTE See 3.23. 3.7
configuration-property type index
16-bit number that uniquely identifies a configuration-property type within the scope defined by the scope number and program-ID template of the resource file that contains the configuration-property type definition 3.8
device
logical and physical entity of the network containing an application that is designed to communicate with other logical and physical entities 3.9
device channel ID
number that optionally specifies the channel to which a device is attached 3.10
device class two-byte field identifying the primary function of a device and part of the SPID of the device 3.11
device interface network-visible interface to a device consisting of the unique node ID, program ID, channel ID, location field, device self-documentation string, device configuration properties, and functional blocks SIST EN 14908-5:2009
EN 14908-5:2009 (E) 9 3.12
device-location field string or number that optionally specifies the location of a device 3.13
device self-documentation string DSDS string that specifies the structure of the contents of the self-documentation strings, the functional blocks, and optionally describes the function of a device 3.14
device subclass two-byte field specifying the usage in the first byte and the channel type in the second byte and is part of the SPID of a device NOTE See the usage and channel-type definitions. 3.15
dynamic functional block functional block that is added to a device by a network tool after the device is installed 3.16
dynamic network variable network variable that is added to a device by a network tool after the device is installed 3.17
format
four-bit value defining the structure of the program ID as being a Standard Program Identifier (SPID) and device self-documentation string (DSDS) in the device string that provides formatting instructions for a network-variable or configuration-property type 3.18
functional block portion of a device’s application that performs a task by receiving configuration and operational data inputs, processing the data, and sending operational data outputs NOTE A functional block may receive inputs from the network, from hardware attached to the device, and/or from other functional blocks on a device. A functional block may send outputs to the network, to hardware attached to the device, and/or to other functional blocks on the device. A functional block is an implementation of a functional profile. A “standard” functional block is one based on a standard functional profile template (SFPT). 3.19
functional-block index sequentially assigned number identifying a functional-block implementation on a device 3.20
functional profile FP template that describes common units of functional behaviour, also known as profiles, or FPs; which can be represented with a machine-readable functional-profile template (FPT) SIST EN 14908-5:2009
EN 14908-5:2009 (E) 10 NOTE Each functional profile consists of a profile description and a specified set of network variables and configuration properties designed to perform a single function on a device. The network variables and configuration properties specified by the functional profile are called the functional-profile members. A functional profile specif
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