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 <title><![CDATA[两台西门子MODBUS通讯探讨]]></title>
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 <description><![CDATA[Latest 50 replies of 两台西门子MODBUS通讯探讨]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习下,谢谢楼主]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1639712.html]]></link>
 <author><![CDATA[woaqqdfq]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Tue, 20 Jan 2015 08:32:35 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢，学习学习]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1637436.html]]></link>
 <author><![CDATA[asdqwe]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Tue, 13 Jan 2015 03:05:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习下了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1636902.html]]></link>
 <author><![CDATA[听海]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Sun, 11 Jan 2015 13:23:33 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼主是我们学习的榜样]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1619533.html]]></link>
 <author><![CDATA[彭万生]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Sat, 15 Nov 2014 05:25:32 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习下，谢谢楼主]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1619521.html]]></link>
 <author><![CDATA[zycbx168]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Sat, 15 Nov 2014 04:58:41 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习一下 ！！！！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1618489.html]]></link>
 <author><![CDATA[kke258]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Tue, 11 Nov 2014 07:15:14 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习下了!谢谢楼主！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1617753.html]]></link>
 <author><![CDATA[wwabcd]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Sat, 08 Nov 2014 12:12:31 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢，学习下了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1617312.html]]></link>
 <author><![CDATA[百里长青]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Fri, 07 Nov 2014 03:17:29 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第21楼renzhe于2014-11-03 13:00发表的&nbsp;&nbsp;:

[/quote]
谢谢你，我现在应该可以看懂了，很是有用]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1616120.html]]></link>
 <author><![CDATA[pitersky]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Mon, 03 Nov 2014 05:13:50 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第20楼pitersky于2014-11-03 10:53发表的&nbsp;&nbsp;:
我还是想求教下，这个程序中写将IB0 MOV到VB200 为什么对应的QB0会点亮呢？从程序哪里可以看得出来啊？我也没见到哪里有VB200跟QB0之间的关系啊，&nbsp;&nbsp;我是刚入行的新手&nbsp;&nbsp; 一点不懂通讯，希望你们能指点下，谢谢了
[/quote]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1616112.html]]></link>
 <author><![CDATA[renzhe]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Mon, 03 Nov 2014 05:00:54 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我还是想求教下，这个程序中写将IB0 MOV到VB200 为什么对应的QB0会点亮呢？从程序哪里可以看得出来啊？我也没见到哪里有VB200跟QB0之间的关系啊，&nbsp;&nbsp;我是刚入行的新手&nbsp;&nbsp; 一点不懂通讯，希望你们能指点下，谢谢了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1616060.html]]></link>
 <author><![CDATA[pitersky]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Mon, 03 Nov 2014 02:53:02 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢分享 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1615670.html]]></link>
 <author><![CDATA[cai.6512]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Sat, 01 Nov 2014 12:31:17 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢分享，好]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1613859.html]]></link>
 <author><![CDATA[zxw85822]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Mon, 27 Oct 2014 05:03:35 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[多向大师学习,致敬! [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1613248.html]]></link>
 <author><![CDATA[幸运之神]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Fri, 24 Oct 2014 14:32:27 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习一下西门子MODBUS通讯不错，谢谢分享]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1613220.html]]></link>
 <author><![CDATA[sz518104]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Fri, 24 Oct 2014 13:17:59 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了，谢谢 [s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1611552.html]]></link>
 <author><![CDATA[huikong]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Mon, 20 Oct 2014 00:31:51 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[高手！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1611343.html]]></link>
 <author><![CDATA[彭万生]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Sun, 19 Oct 2014 05:22:26 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[下来学习一下，谢过了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1582982.html]]></link>
 <author><![CDATA[lijinniu]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Fri, 04 Jul 2014 00:08:26 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习下了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1580370.html]]></link>
 <author><![CDATA[mlb169]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Mon, 23 Jun 2014 10:31:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了，谢谢。。。。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1580301.html]]></link>
 <author><![CDATA[炽天使11233]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Mon, 23 Jun 2014 05:54:34 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习下，谢谢楼主]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1580263.html]]></link>
 <author><![CDATA[nyzjs]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Mon, 23 Jun 2014 02:48:04 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习一下，谢谢！ [s:21]&nbsp;&nbsp;[s:21]&nbsp;&nbsp;[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1579918.html]]></link>
 <author><![CDATA[luowsl]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Sat, 21 Jun 2014 12:57:31 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[给你顶下]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1566827.html]]></link>
 <author><![CDATA[liuqiang1986]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Thu, 08 May 2014 11:34:20 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[LZ好人，正需要这个]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1565678.html]]></link>
 <author><![CDATA[hanwenpu]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Mon, 05 May 2014 04:58:56 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习下，谢谢楼主]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1565441.html]]></link>
 <author><![CDATA[guye2600]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Sun, 04 May 2014 10:16:03 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习一下，谢谢！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1565332.html]]></link>
 <author><![CDATA[renlei0806]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Sun, 04 May 2014 05:33:41 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[是的，直接用3-3 8-8 连起来就可以]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1565326.html]]></link>
 <author><![CDATA[renzhe]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Sun, 04 May 2014 05:13:38 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用楼主yirunfa于2014-05-03 15:56发表的 两台西门子MODBUS通讯探讨 :
这是最近我测试的心得。需要了解的看下。
[/quote]
谢楼主的资料，以前我试过用PPI主从通讯的方式连接两台PLC用网络读写功能试过不行，不过你用的是ＭＯＤＢＵＳ　ＲＴＵ的库做的，程序看过了想问下硬件连接就直接用３－３,８－８就行了吗，不 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1565271.html]]></link>
 <author><![CDATA[xuyifu]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Sun, 04 May 2014 02:45:15 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习下了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1565218.html]]></link>
 <author><![CDATA[ahljj]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Sun, 04 May 2014 00:36:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢，学习下了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1455005#1565198.html]]></link>
 <author><![CDATA[中水十局]]></author>
 <category><![CDATA[程序样例]]></category>
 <pubdate><![CDATA[Sat, 03 May 2014 21:29:21 +0000]]></pubdate>
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