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yfdxb
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樓主  發(fā)表于: 2007-12-21 10:52
老楊您好:
現手上有一拆機件omron CPM1A plc,想從新利用。因對其軟硬件均不熟悉(剛學(xué)習)。遇到以下情況:打開(kāi)編程軟件,選擇自動(dòng)在線(xiàn),就是跟PLC連接不上!該PC所控制的機器原來(lái)各動(dòng)作正常,plc沒(méi)壞。軟件是網(wǎng)上下載的。這究竟是軟件沒(méi)注冊、還是plc加密造成?
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zyfzxh
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1樓  發(fā)表于: 2007-12-21 13:00
你的com口選擇是不是正確的還有波特率?
zyfzxh
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2樓  發(fā)表于: 2007-12-22 15:16
你有用USB轉RS232嗎?

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