Modbus RTU通信协议在智能仪表与工控机通信中的应用  

Application of Modbus RTU Protocol in the Communication between IPC and Intelligent Instrument

作　　者：王兴贵[1] 张明智[1] 杜莹[1] 

机构地区：[1]兰州理工大学电气工程与信息工程学院,甘肃兰州730050

出　　处：《低压电器》2008年第2期8-11,共4页Low Voltage Apparatus

摘　　要：Modbus协议是应用于电子控制器的一种通用协议。该协议已经成为我国工业自动化网络协议规范的国家标准之一。介绍了一种在VB6.0编程环境下,基于Modbus RTU规约,通过RS-485串口,实现工控机与智能仪表通信的具体方法。Modbus protocol is a kind of general protocol applied into electron controller, which has become one of the national standard in the network protocol criterion of industrial automation. A method which realized the communication between IPC and intelligent instrument based on Modbus RTU protocol with VB 6.0 and RS-485 serial port was introduced.

关 键 词：工业自动化 MODBUS RTU规约 智能仪表 工控机 MSCOMM控件 循环冗余码校验 

分 类 号：TN915.04[电子电信—通信与信息系统]