32通道开关信号采集系统的设计与实现
Electronic Component & Device Applications(2012)
Abstract
针对现代工业控制系统中开关量控制的问题,提出通过上位机与控制板的通讯来实现对开关量控制的方法,以STC89C51单片机为核心,设计了一种带有RS485通讯接口的多路开关量控制板,实现了开关量信号采集、控制、显示、判断及执行相应操作功能。
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Key words
STC89C51,switch quantity,RS485,controller board
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