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lixiaoyun
人在江湖
級別: 網(wǎng)絡(luò )英雄
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樓主  發(fā)表于: 2010-09-03 15:22
各位高手,前面講的Y1輸出有故障的PLC,我已從機器上拆下來(lái),用電腦把程序里的Y1改成了空懸的Y4腳,可打開(kāi)PLC的運行時(shí),輸入端全部是懸空的,但Y4點(diǎn)竟會(huì )輸出,重新把程序改回Y1后,又會(huì )出現Y1輸出,這到底是怎么回事啊
江湖好學(xué)士
ykykkhor
Best Regards,YK
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1樓  發(fā)表于: 2010-09-04 22:18
是程序編寫(xiě)的事, 不是輸出點(diǎn)異常
不相信的話(huà), 把 PLC 調到 STOP, Y1 和 Y4 不再有輸出

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