PLC与监控站通信机理的研究及实现  

The Research and Realization of communication between PLC and Monitor platform

作　　者：郝晓弘[1] 王昕[1] 张萍[1] 

机构地区：[1]兰州理工大学,甘肃兰州730050

出　　处：《微计算机信息》2006年第02S期77-79,41,共4页Control & Automation

基　　金：甘肃省科技攻关项目;项目编号:2GS044-A52-011-24

摘　　要：本文以Quantum系列PLC为研究对象,研究了其支持的通信协议。并且以Modbus协议为应用层协议,TCP协议为传输层协议,IEEE802.3为介质访问控制协议,结合VC++6.0里的Winsock网络编程控件,编制了Modbus/TCP通信程序,实现了Quantum系列PLC与监控制站之间的以太网通信。该程序具有通信速度快,可靠性高的特点。This article introduces a kind of communication based on the Quantum series PLC. Using protocol of Modbus as protocol of application layer, TCP as protocol of transport layer ,IEEE802.3 as protocol of MAC, through Winsock of VC＋＋6.0 ,realize the Ethernet communication between Quantum PLC and monitor platform. The system that has this control system can become more speediness,economic and reliable in communication.

关 键 词：协议 MODBUS协议 TCP协议 套接字 PLC 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]