MODBUS规约在前置机与现场微机设备间通讯应用

The Use of MODBUS Protocol in the Communication between the Industrial Computer and the Device of Micro-Computer on the spot

本文以上海正大广场变电站计算机监控系统为例，详细阐述了如何利用ＭＯＤＢＵＳ协议来实现监控系统中前置机与现场测量和保护装置之间的通讯连接，为现场信息如何进入上位系统开辟了新思路。

This paper mainly deals with Modbus protocol and its use in the Microprocessor Supervisory Control System of Substation in Shanghai Zhengda Plaza. The communication has been achieved by Modbus between the industrial control computer and some devices on the spot in the building, messages can be easily sent into the netserver to show.