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dzg2000
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樓主  發(fā)表于: 2008-12-26 13:14
OMRON  CJCPU13與海泰克人機通訊不上?
是使用的RS232端口,海泰克人機是使用COM2.
以前能通訊,斷電之后,將CPU端口拔下,  在斷電的情況下用下載線(xiàn)
把電腦和PLC連接.  為防止改變PLC的程序,將PLC  CPU設置開(kāi)關(guān)1設置
為ON(PLC不能寫(xiě)入程序),將程序下載后,在斷電的情況下,將下載線(xiàn)拔掉,
再插上人機連接線(xiàn),此時(shí)PLC和人機通訊不上了.      請問(wèn)為何??
                                                                                    謝謝!!
liuhojn
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1樓  發(fā)表于: 2009-01-24 15:33
檢查一下端口的設置�。�！通訊口與下載端口的設置是不同的�。�！

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