摘要
介绍了一种以 89C5 1单片机为基础的二次仪表远程通讯方案 ,利用MODEM和E2 PROM实现了低成本的远距离数据传输。该系统可随时上传下位机采集到的历史数据 。
A new tel-communication method based on 89C51 is proposed,which allows a low cost data transmission that can be realized by using MODEM and E 2PROM.The historical data collected by Single Chip Microcomputer,which can be controlled by PC,may be transmitted to PC anytime.
出处
《东北电力学院学报》
2002年第2期70-73,共4页
Journal of Northeast China Institute of Electric Power Engineering