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yd1472004
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樓主  發(fā)表于: 2017-07-26 10:01
各位大神,我這里現有一個(gè)FX2N PLC 連接著(zhù)一臺1ms(0.001s)分辨率的定時(shí)器,定時(shí)器的輸出接PLC輸入。定時(shí)器信號控制伺服電機啟動(dòng)
現在我在調整定時(shí)器的時(shí)間2~3ms時(shí),發(fā)現伺服電機啟動(dòng)時(shí)間沒(méi)有變化,但調整量較大后(20ms)會(huì )變化比較大,這是不是掃描周期影響的輸出信號,怎么樣才可以消除掃描周期影響。
中斷+輸出實(shí)時(shí)刷新行嗎,輸出實(shí)時(shí)刷新怎么用?
wangnaizhi
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1樓  發(fā)表于: 2017-07-27 10:16
有PLC用時(shí)間繼電器干嘛  你的時(shí)間繼電器的線(xiàn)圈動(dòng)作時(shí)間也得有個(gè)8MS 到12MS這樣吧 本身就有一定的延時(shí)性  直接用PLC內部的時(shí)間繼電器應該會(huì )好點(diǎn)

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