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 <title><![CDATA[请问群里有没有玩S7-200与仪表通讯，自由 ..]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1563674.html]]></link>
 <description><![CDATA[Latest 50 replies of 请问群里有没有玩S7-200与仪表通讯，自由 ..]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <lastBuildDate><![CDATA[Fri, 17 Apr 2026 21:23:03 +0000]]></lastBuildDate>
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 <title><![CDATA[工控人家园]]></title>
 <link><![CDATA[http://www.ymmfa.com]]></link>
 <description><![CDATA[工控人家园]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[串口ASCII 最简单，但是读取指令发送要注意，返回的字节数最好大于读取指令的字节数，不然容易数据错位。读取到的短字节数要放在长字节数前面，程序里不要交叉，否则读取到的字节很难处理]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1563674#1899091.html]]></link>
 <author><![CDATA[13812522320]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 22 Jun 2017 12:09:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[发一个例子给我啊。。。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1563674#1897698.html]]></link>
 <author><![CDATA[zengrj521]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 17 Jun 2017 11:26:01 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1563674#1868947.html]]></link>
 <author><![CDATA[wenliang]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 05 Mar 2017 04:43:34 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[email]346605266@qq.com[/email]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1563674#1868932.html]]></link>
 <author><![CDATA[mdayan]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 05 Mar 2017 03:55:38 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[发你的QQ，联系你]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1563674#1868557.html]]></link>
 <author><![CDATA[zhangshan999]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 03 Mar 2017 12:51:58 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[楼上的兄弟能否留个邮箱，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1563674#1868223.html]]></link>
 <author><![CDATA[mdayan]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 03 Mar 2017 03:39:41 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[自由口也很简单的。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1563674#1862320.html]]></link>
 <author><![CDATA[ckliushx]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 14 Feb 2017 06:25:26 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[要学会串口调试软件，明白通讯协议，多看看MODBUS RTU通讯协议，弄个台达变频器或者温控器带通讯的，用个带串口电缆和232转485转换器练练。网上很多例子。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1563674#1861692.html]]></link>
 <author><![CDATA[zhangshan999]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 11 Feb 2017 12:57:31 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[MODBUS RTU 简单有可靠，西门子MODBUS RTU 库可以与仪表，变频器能进行485通讯。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1563674#1861443.html]]></link>
 <author><![CDATA[zhangshan999]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 10 Feb 2017 11:26:34 +0000]]></pubdate>
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