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 <title><![CDATA[求助]]></title>
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 <description><![CDATA[通讯错误就是没通讯上，和密码无关

1，检查PLC是否通电
2，检查电缆型号是否正确，有没牢固连接
3，如果是USB转232的，还要检查有没正确安装驱动程序
4，在PLC软件上，多试几个COM口，逐一选择然后通讯测试]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-49620#665916.html]]></link>
 <author><![CDATA[YMMFA]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 09 Nov 2009 03:49:54 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不是你的程序吧。有密码]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-49620#665902.html]]></link>
 <author><![CDATA[hengfen]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 09 Nov 2009 03:25:19 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[COM口重设一下就好了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-49620#665889.html]]></link>
 <author><![CDATA[rrx888]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 09 Nov 2009 03:13:49 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[改一下通信协议呀。通常改一下通信COM口就可以了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-49620#665609.html]]></link>
 <author><![CDATA[wsandlqj]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 08 Nov 2009 14:05:48 +0000]]></pubdate>
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