【作者】 龚仁喜； 江波； 叶丽； 张海南；

【Author】 Gong Renxi Jiang Bo Ye Li Zhang Hainan School of Electrical Engineering, Guangxi University, Nanning 530004,China

【机构】 广西大学电气工程学院；

【摘要】 把组态软件与单片机结合起来构成各种智能工业测控系统已经成为提升企业竞争力的重要手段。然而,要使它们实现联合,必须解决它们之间的通信问题。本文介绍了一种通过RS485接口实现组态王与基于51单片机的智能化仪器、仪表、设备的通讯方法,描述了单片机和组态王通信的系统结构,电路组成,采用的通讯协议。并将该方法用于熔融氧化锑液位高度的实时远程测量中。应用表明这种通讯方法具有硬件电路简单、结构紧凑灵活,编程容易,成本低廉、数据传输稳定,可靠、传输距离远等特点。更多还原

【Abstract】 It has been a very important means for promoting the competition ability of enterprises that a combination of Kingview with microcontrollers is made to construct various intelligent measurement and control system. However, in order to implement their combination, the problems of communications between them must be solved. A novel communication method is presented in which the communications between Kingview and intelligent instruments and equipments based on 51-family microcontrollers is implemented via RS485 interface, and a description of the structure and principle of the communication system and the communication protocols utilized between them is made. The method is applied to measure the liquid level height of the eutectic antimony oxide real-timely and remotely. The result shows that the method is characteristics of simple hardware circuit, easy communication program, low cost, stable and reliable and long distance data transport.更多还原