基于BACnet的复合式DDC控制器  

Compound DDC Controller Based on BACnet

作　　者：张青 董世运 李锦文 马俊杰 Zhang Qing;Dong Shiyun;Li Jinwen;Ma Junjie(Beijing Hexinyunda S&TLtd.,Beijing 102206,China)

机构地区：[1]北京和欣运达科技有限公司,北京102206

出　　处：《绿色建造与智能建筑》2023年第5期66-69,共4页GREEN CONSTRUCTION AND INTELLIGENT BUILDING

摘　　要：本文分析了目前楼宇自控领域两种控制器的优劣,提出基于BACnet的复合式DDC控制器的设计。整体架构由一个主机与若干个从机构成,主机在普通DDC的基础上增加了ModBus数据接口,从机处理现场信号的输入传给主机,并向现场设备输出来自主机的命令,主机与从机之间的通讯采用轮询机制,主机创建所有的BACnet对象,并为每个从机地址预留instance空间。This paper analyzes the advantages and disadvantages of two kinds of controllers in the field of building automation at present,and puts forward the design of compound DDC controller based on BACnet.The overall architecture consists of a host and several slaves.The host adds a ModBus data interface on the basis of ordinary DDC.The slave processes the input of the field signal and transmits it to the host,and outputs the command from the host to the field device.The communication between the host and the slave adopts the polling mechanism.The host creates all BACnet objects and reserves instance space for each slaveaddress.

关 键 词：BACNET 复合式 DDC控制器 主机 从机 

分 类 号：TU855[建筑科学]