PLC控制监控系统的数据通讯

Data Communication of Long-range Auto-monitoring System

文章从串行通信的角度详细讨论了通过普通电话利用调制解调器进行远程数据通讯的实现方法,给出了可编程控制器(PIC)和双端口存储器(PAM)实现的远程互连与通讯。

This article, from the angle of series communication, discusses in detail the way of using modem to carry out long - range data communication by ordinary telephones, which offers the long - range interconnection and communication by PLC and RAM.