摘要
详细论述了W77E58与PC机串口通信的硬件接口电路特点以及软件编程方法,设计了数据采集的硬件电路与数据知识基于Modbus协议表示的算法。标准Modbus协议是当前在工业控制当中使用广泛一种通信协议,而且已经成为一种通用的工业标准。数据采集系统运行稳定,能够准确接收到现场单片机采集的信息,具有一定的实用性。
This paper describes the hardware interface circuit and the software programming about the serial communication between the W77E58 and the computer,also designs the hardware circuit of data acquisition and the arithmetic of data transcription based on Modbus protocol.The standard Modbus protocol is a communication protocol which is used widely in industrial control,and it has become a universal industrial standard.
出处
《工业控制计算机》
2009年第6期75-76,共2页
Industrial Control Computer
