BS DD ENV 1805-2-1996 Data communication for HVAC Application Management Net - System neutral data transmission by open communication for building automation (FND)《HAVC应用管理网的数据通信 通.pdf
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1、DRAFT FOR DEVELOPMENT DD ENV 1805-2:1996 Data communication for HVAC Application Management Net Part 2: System neutral data transmission by open communication for building automation (FND) ICS 35.240.60; 97.120DD ENV 1805-2:1996 This Draft for Development, having been prepared under thedirection of
2、the Engineering Sector Board, was published underthe authority of the Standards Board and comes intoeffect on 15April1996 BSI 03-2000 The following BSI references relate to the work on this DraftforDevelopment: Committee reference RHE/16/1 ISBN 0 580 25357 0 Committees responsible for this Draftfor
3、Development The preparation of this Draft for Development was entrusted by Technical Committee RHE/16, Controls for HVAC, to Subcommittee RHE/16/1, Management systems for buildings, upon which the following bodies were represented: Association of Consulting Engineers Association of Control Manufactu
4、rers TACMA (BEAMA Ltd.) British Combustion Equipment Manufacturers Association Building Services Research and Information Association Department of the Environment (Building Research Establishment) Electrical Contractors Association Energy Systems Trade Associations HEVAC Association Co-opted member
5、s Amendments issued since publication Amd. No. Date CommentsDD ENV 1805-2:1996 BSI 03-2000 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of ENV 1805-2 5DD ENV 1805-2:1996 ii BSI 03-2000 National foreword This Draft for Development has been prepared by
6、 Subcommittee RHE/16/1 and is the English language version of ENV1805 Data communication for HVAC application management net Part2:1995 System neutral data transmission by open communication for building automation (FND), published by the European Committee for Standardization (CEN). ENV1805-2:1995
7、was produced as a result of international discussions in which the UK took an active part. This publication is not to be regarded as a British Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature. It should be applied on this provisional bas
8、is so that information and experience of its practical application may be obtained. Comments arising from the use of this Draft for Development are requested so that UK experience can be reported to the European organization responsible for its conversion to a European Standard. A review of this pub
9、lication will be initiated2 years after its publication by the European organization so that a decision can be taken on its status at the end of its three-year life. The commencement of the review will be notified by an announcement in BSI News. According to the replies received by the end of the re
10、view period, the responsible BSI Committee will decide whether to support the conversion into a European Standard, to extend the life of the prestandard or to withdraw it. Comments should be sent in writing to the Secretary of BSI Technical Committee RHE/16 at389 Chiswick High Road, London W44AL giv
11、ing the document reference and clause number and proposing, where possible, and appropriate revision of the text. Cross-reference Publication referred to Corresponding British Standard ISO 4903:1989 BS ISO 4903:1989 Information technology. Data communication. 15-pole DTE/DCE interface connector and
12、contact number assignments Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theENV title page, pages 2 to 76, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will b
13、e indicated in the amendment table on the inside front cover.EUROPEAN PRESTANDARD PRENORME EUROPENNE EUROPISCHE VORNORM ENV 1805-2 July 1995 ICS 35.240.60; 97.120 Descriptors: Automation, buildings, control device, data processing, data transfer, FND English version Data Communication for HVAC Appli
14、cation Management Net Part 2: System neutral data transmission by open communication for building automation (FND) This European Prestandard (ENV) was approved by CEN on1995-06-29 as a prospective standard for provisional application. The period of validity of this ENV is limited initially to three
15、years. After two years the members of CEN will be requested to submit their comments, particularly on the question whether the ENV can be converted into an European Standard (EN). CEN members are required to announce the existence of this ENV in the same way as for an EN and to make the ENV availabl
16、e promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the ENV) until the final decision about the possible conversion of the ENV into an EN is reached. CEN members are the national standards bodies of Austria, Belgium,
17、Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart
18、36, B-1050 Brussels 1995 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members. Ref. No. ENV 1805-2:1995 EENV 1805-2:1995 BSI 03-2000 2 Foreword This European prestandard (ENV) has been prepared by the Technical Committee CEN TC247
19、, Control for mechanical building service, of which the secretariat is held by SNV. This ENV1805-2 prestandard is part of a series of standards for system-neutral data communications in HVAC systems. This ENV1805-2 (FND) prestandard and the ENV1805-1 (BACnet) cover the data communications on the man
20、agement level and together form the prestandard for the management level. ENV1805-2 is an adoption of the German prestandard DIN V32735 “System-neutral data transmission by open communication for building automation (FND)” from January1991. The position of this standard in the whole range of standar
21、ds for mechanical building services and the normative sections of the BACnet standard included is illustrated inFigure 1. According to the CEN/CENELEC Internal Regulations, the following countries are bound to announce the European Prestandard: Austria, Belgium, Denmark, Finland, France, Germany, Gr
22、eece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Protugal, Spain, Sweden, Switzerland, United Kingdom. Figure 1 The shaded boxes indicate the contents and the hierarchy of this standard. The plain areas show the positioning of this standard in relationship to other relevant mechanical
23、 building services standardsENV 1805-2:1995 BSI 03-2000 3 Contents Page Foreword 2 0 Introduction 5 1 Scope 5 1.1 Field of application 5 1.2 Purpose 5 2 Normative references 6 3 FND communication model 6 3.1 Information exchange 6 3.2 Positioning of FND inside building automation systems 8 3.3 FND b
24、uilding automation model 9 3.4 Data points 11 3.5 Definitions 12 4 Description of data points 14 4.1 Transfer point 14 4.2 Signalling point 15 4.3 Switching point (with and without feedback) 18 4.4 Measuring point 21 4.5 Set point 26 4.6 Counting point 28 4.7 Collection point 32 5 FND-APDU format 37
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