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shuo@ying
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樓主  發(fā)表于: 2019-12-09 11:00
第一次做串口通信，對于RCV指令不是很理解，如果當串口有信號輸入時(shí)，RCV指令TBL指向VB100，那么假如VB100等于5,我是否可以利用比較指令和上升沿檢測控制M1.0的通斷呢？
如果可行，在下一個(gè)掃描周期串口沒(méi)有信號輸入時(shí)，VB100是否等于0？
求大神解惑
slayer0204
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1樓  發(fā)表于: 2019-12-18 08:05
第一個(gè)，可以。第二個(gè)，數值不變

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