PLC定时器ON延时和OFF延时.doc

文档介绍：PLC定时器ON延时和OFF延时plc定时器(ON延时和OFF延时)指示灯在开关打开5s后点亮,开关关闭3s后熄灭。PLC时序图PLC输入X1–启动开关。PLC输出Y1–输出指示灯定时器T0–5秒计时器,100毫秒时基。(请参阅定时器K50预设值)T1–3秒定时器,100毫秒时基。(请参阅定时器K30预设值)plc编程梯形图当X1=ON,T0将启动5秒计数。当T0达到设定值时,常开触点T0打开,而常闭接点T1将保持关闭,这使得指标Y1为ON并锁定。·当X1=OFF,T1将开始3秒计数。当T1达到其设定值时,NC触点T1将被激活,而常开触点T0将保持关闭,这使得指示器Y1为OFF。Forpersonaluseonlyinstudyandresearch;mercialuse