【IC697CMM712】【IC697CMM712】

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100 ms的定时器在执行指令时刷新，所以当定时器T37到达设定值时，Q0.0肯定会产生这个脉冲。改用正确使用方法后，把定时器到达设定值产生结果的元器件的常闭触点用做定时器本身的输入，则不论哪种定时器，都能保证定时器达到设定值时，Q0.0产生一个宽度为一个扫描周期的脉冲。所以，在使用定时器时，要弄清楚定时器的分辨率，否则，一般情况下不要把定时器本身的常闭触点作为自身的复位条件。在实际使用时，为了简单，100 ms的定时器常采用自复位逻辑，而且100 ms定时器也是使用zui多的定时器。

：张亮（工程师）    专线：
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