例如,如果一个程序块中的一一个定时器被复位,该程序块四分钟不被调用(非活动的),当程序块被调用时,四分钟时间已经累积进去。如果使能输入关闭,这四分钟被应用到定时器中(也就是说,CV设为4分钟)。量程是0到+32,767时间单位。这个定时器的状态在失电时保持不变,上电时不自动初始化。当ONDTR第一-次接收能流,ONDTR开始计时(当前值CV)。
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