摘要
根据 PC 与 PLC 监控系统的工作特点,提出了一种 PC 与 PLC 长距离通信的实现方法,给出了控制系统的组成结构,详细分析了系统的通信原理,重点阐述了读、写命令的数据格式和 PLC 的通信数据字符,讨论了通信接口的硬件连接方法,编写了系统的初始化程序,说明了这是一种先进的控制技术,具有较大的推广价值。
According to the characteristics of monitor system with PC and PLC, the implement method for remote communication is proposed, the constitution of the control system is given. The principle of the system is analyzed in detail, the data form of reading and writing order and communication data character are introduced. The hardware connection method of interface and the initial program are analyzed. It is an advanced control technology.
出处
《电气自动化》
北大核心
2008年第4期61-62,77,共3页
Electrical Automation
基金
湖南省教育厅资助科研项目(编号:07C216)
