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 <title><![CDATA[RS 232，RS 485，RS 422&nbsp;&nbsp;？？ ..]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1576297.html]]></link>
 <description><![CDATA[Latest 50 replies of RS 232，RS 485，RS 422&nbsp;&nbsp;？？ ..]]></description>
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 <title><![CDATA[工控人家园]]></title>
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 <description><![CDATA[工控人家园]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[内涵太多，一言难尽！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1576297#1879126.html]]></link>
 <author><![CDATA[sun3751]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 10 Apr 2017 03:22:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[估计PLC要读取PC的数值不是容易的。起码需要懂C语言吧。如果反过来可能有会的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1576297#1879072.html]]></link>
 <author><![CDATA[泰山之石]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 10 Apr 2017 01:03:44 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[RS232，485，422只是电气接口，和程序没关系]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1576297#1879071.html]]></link>
 <author><![CDATA[bdmogui]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 10 Apr 2017 01:00:38 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[没人发个言么？？懂的都来讨论下啊！我对通讯这块不熟悉！


谢谢各位大侠，学习了！
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 <link><![CDATA[http://www.ymmfa.com/read-gktid-1576297#1878929.html]]></link>
 <author><![CDATA[q123long]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 09 Apr 2017 06:45:30 +0000]]></pubdate>
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