论文部分内容阅读
这是一个三级近距离及一级远距离通讯系统。近距离通讯采用 RS—232口,远距离采用 RS—422口。本文主要叙述用先进语言 turbo.c 开发通讯程序。这种通讯程序适用性强、简便。既适合近距离,又适合远距离,只要把不同的通讯口地址替换即可。
This is a three-level close and a long-distance communication system. RS-232 communication using short-distance communication, long-distance use of RS-422 mouth. This article describes the use of advanced language turbo.c development of communication procedures. This communication program is easy and practical. Not only suitable for short distance, but also for long distance, as long as the address of the different communication port can be replaced.