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江畔望月
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樓主  發(fā)表于: 2009-05-04 00:09
現有臺機器要改造，要將電機帶動(dòng)的執行機構移動(dòng)的距離在觸摸屏上顯示出來(lái)，用編碼器的ab兩相和三菱FX2n的PLC的高速計數器來(lái)做，現在有個(gè)問(wèn)題是怎么判斷電機的執行機構是前進(jìn)和后退呢？
[ 此帖被江畔望月在2009-05-04 00:16重新編輯 ]
hulain
hulain
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1樓  發(fā)表于: 2009-05-06 15:20
編碼器信號傳送給plc高速計數器或用接收頻率50khz汁數器就可以了

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