摘要
简要介绍Modbus通信协议的特点,结合作者的实践经验,详细介绍基于Modbus协议,在线色谱模拟蒸馏分析仪表上位机作为主站、PLC为从站的通信的实现方法。
Modbus communication protocol is introduced first. Combined with author＇s practical experience, it＇s then presented in detail that based on Modbus Protocol, how to communicate between the upper computer as master and PLC as slave.
出处
《中国仪器仪表》
2009年第10期47-49,共3页
China Instrumentation
基金
国家863项目(项目编号:2006AA040309)
