摘要
论述了整个楼宇中央空调的控制系统结构及其功能;系统通过RS485与PC机通讯,实现计算机的远程实时监测;详细介绍了可视化编程语言Visual Basic(VB)与ACCESS数据库的连接方法应用,概述了上位机与下位机的RS485通信软件设计,并给出了详细流程图。系统完成后应用于实践工程,用户反应良好。
Summarizes the structure and the function of the whole system.This paper implements remote real time supervise and control by communicating with computer through 485 bus.The connection method and its application between Visual Basic （VB） and ACCESS database are described in detail.This paper introduce the communication software design between PC and RS485,and offer the detail flow chart.This system has been applied in practice project,the result is satisfied.
出处
《工业控制计算机》
2009年第6期13-14,共2页
Industrial Control Computer
