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工業技術研究院

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技術名稱: BACnet開放通訊協定技術

技術簡介

由於開放互通性控制系統標準定義逐漸完善,美國、歐洲和日本,均採用ASHRAE之BACnet作為開放式建築自動化網路之國家標準,以確保該國之相關設備可透過開放式通訊協定相互整合,達成多家廠商空調控制設備以互通性控制網路技術開發新產品。本技術即在提供ASHRAE BACnet/IP與常用Modbus RTU/TCP之通用型閘道器技術。

Abstract

ASHRAE BACnet has been used as international communication standard for building automation in many countries. It provides a communication platform for the devices made by different companies to communicate and to integrate each others. BACnet open protocol technology provides the gateway hardware and software for ASHRAE BACnet/IP and Modbus RTU/TCP.

技術規格

透過BACnet objects可讀/寫標準Modbus register AI, BI, MSI輸入物件各300點 AO, BO, MSO輸出物件各100點 AV, BV, MSV物件各100點 為Modbus RTU master也為Modbus TCP master,兩介面可同時訊問Clients 標準EIA-485傳收Modbus RTU資料內容 標準RJ-45 10/100 Ethernet傳收Modbus TCP資料內容 支援Discrete Input, Input Register,唯讀至少300 點 支援 Coil, Holding Register,讀寫至少300 點 支援Single或double Modbus registers, signed, unsigned, IEEE 754等資料格式 Modbus register mapping configured via web interface and application program  Modbus registers可調整資料倍率(scale x10, x100, x0.1, x0.01, etc.)與偏移量(offset),有swapped的功能  Modbus (master) 的訊問(polling)Clients間隔時間可各點調整

Technical Specification

none

技術特色

BACnet/IP 伺服器支援BACnet ASHRAE 135-2008 Annex J-BACnet/IP 協定提供單點與多點讀寫之功能 提供BACnet 標準物件訂閱需求(COV-Subscription Requests) Modbus Master 伺服器 (Modbus Master Server)支援RTU/TCP模式 提供定期詢問Modbus 上Modbus Slave 的設備及偵測點 具備網頁參數配置管理

應用範圍

空調設備製造商、ESCO服務商、建築自動化系統開發

接受技術者具備基礎建議(設備)

接受技術者具備基礎建議(專業)

具備系統整合能力之廠商

技術分類 01 綠能環境

聯絡資訊

聯絡人:甘凱文 電網與電力電子技術組

電話:03-5915000 或 Email:kw.kan@itri.org.tw

客服專線:+886-800-45-8899

傳真:03-5916457

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