基于Modbus TCP协议实现PC机与PLC的串行通信  

Implementation of Serial Communication between PC and PLC Based on Modbus/TCP Protocol

作　　者：邬书金[1] 万频[1] 何吉越[1] 胡健[1] 宓超[2] 

机构地区：[1]广东工业大学自动化学院 [2]上海海事大学物流工程学院

出　　处：《可编程控制器与工厂自动化（PLC FA）》2009年第9期63-64,共2页Programmable controller & Factory Automation(PLC & FA)

摘　　要：通过一个智能楼宇工程项目,介绍Modbus TCP协议的发展与应用,重点分析研究了Modbus TOP读取PLC的保持寄存器数据的过程,编写出基于Modbus TCP协议的VC串行通信程序,并在智能楼宇工程中获得成功应用。This article introduced the situation of development and application about Modbus TCP protocol through an project for intelligent building, focused on the analysed the process that the Modbus TCP access the holding register of PLC via the protocol, and then used Visual C＋＋ programmed the communication program based on Modbus TCP protocol, finally the application was succeed.

关 键 词：MODBUS TCP协议 PLC 串行通信 智能楼宇 

分 类 号：TP316[自动化与计算机技术—计算机软件与理论]