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hbsylsq
級別: 略有小成
精華主題: 0
發(fā)帖數量: 179 個(gè)
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在線(xiàn)時(shí)間: 255(小時(shí))
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最后登錄: 2025-03-27
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樓主  發(fā)表于: 2019-01-20 09:39
關(guān)于三菱plc，臺達plc中定位指令執行時(shí)，官方例程要求延遲一個(gè)掃描周期，為什么不能立即執行呢？前段時(shí)間有碰到一個(gè)編程師傅問(wèn)他，據說(shuō)不延遲，程序會(huì )很不穩定？求解？
wangnaizhi
級別: 工控俠客
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發(fā)帖數量: 1298 個(gè)
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在線(xiàn)時(shí)間: 1007(小時(shí))
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1樓  發(fā)表于: 2019-01-20 22:19
這個(gè)是和內部的特殊繼電器有關(guān)系的 因為這2家的特殊繼電器都是會(huì )持續一個(gè)掃描周期  例如三菱的M8029（臺達的M1029)觸發(fā)后都是會(huì )持續一個(gè)掃描周期 所以官方肯定會(huì )建議你在連續定位的時(shí)候 需要間隔一個(gè)掃描周期

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