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 <title><![CDATA[这程序也只有老外才写得出来！]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210.html]]></link>
 <description><![CDATA[Latest 50 replies of 这程序也只有老外才写得出来！]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了，确实 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1205575.html]]></link>
 <author><![CDATA[dreamflylau]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 07 Feb 2012 12:57:21 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[相当于三菱的M8002一样]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1204957.html]]></link>
 <author><![CDATA[gaozhuojun]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 06 Feb 2012 10:24:11 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[图片怎么传不上去]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1201464.html]]></link>
 <author><![CDATA[416994913]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 28 Jan 2012 14:55:10 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[也可以这样]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1201462.html]]></link>
 <author><![CDATA[416994913]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 28 Jan 2012 14:51:47 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这是程序里要要常用的逻辑常1常0啊&nbsp;&nbsp; ，，，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1201440.html]]></link>
 <author><![CDATA[ningchao1]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 28 Jan 2012 12:41:29 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[逻辑&quot;0&quot;,逻辑&quot;1&quot;,就是置信号用的常&quot;1&quot;,常&quot;0&quot;,LZ地确缺确少PLC编程的基本知识.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1201187.html]]></link>
 <author><![CDATA[xiehp]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 27 Jan 2012 06:41:24 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学学，看看]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1197356.html]]></link>
 <author><![CDATA[hy1007p]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 12 Jan 2012 07:36:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼主 ，300 没有像200一样的，固定的常开和常闭触电，所以做一个常时on的触电，第二条指令不需要，直接用m0.1常闭触点就是常时OFF了。这个在300,编程里的头几行都要做进去的。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1197232.html]]></link>
 <author><![CDATA[luis_13]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 12 Jan 2012 03:06:29 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习学习]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1197173.html]]></link>
 <author><![CDATA[hy1007p]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 12 Jan 2012 00:03:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[就是相当于上电接通一次嘛]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1196704.html]]></link>
 <author><![CDATA[liubing3620]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 11 Jan 2012 00:30:10 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[就是西门子的SM0.1呗]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1196412.html]]></link>
 <author><![CDATA[107306749]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 10 Jan 2012 07:18:44 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了 [s:21]&nbsp;&nbsp;[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1183533.html]]></link>
 <author><![CDATA[周云峰]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 15 Dec 2011 13:38:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[常开常闭通常用STL写比较方便，一个SET 搞定]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1183177.html]]></link>
 <author><![CDATA[marcelinho]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 15 Dec 2011 06:31:52 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了，确实还没遇到过]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1182232.html]]></link>
 <author><![CDATA[lichenhui333]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 14 Dec 2011 00:33:26 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学而不厌学无止境]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1181775.html]]></link>
 <author><![CDATA[x58369999]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 13 Dec 2011 05:41:17 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[楼主，你要加强基本功学习哦！&nbsp;&nbsp;&nbsp;&nbsp;[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1181749.html]]></link>
 <author><![CDATA[1306550823]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 13 Dec 2011 04:33:52 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[嘿嘿，听老大的准没错，至于为什么，老大说了，要加强基本功学习哦！~！ [s:26]&nbsp;&nbsp;[s:39]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1181680.html]]></link>
 <author><![CDATA[lovefeyer]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 13 Dec 2011 01:50:05 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[M0.1的线圈常通，M0.0的线圈常开，上面的逻辑的确就是这么简单，但是问题就是这里：如果要使用一个上电就接通或者上电就断开的触点，直接用就好了，为什么还要对它的线圈进行写操作呢？
我差点把M0.0当作是初始化脉冲，再看看下面的梯形图：

 
 [attachment=76004]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1181666.html]]></link>
 <author><![CDATA[huyou]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 13 Dec 2011 01:20:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[呵呵，我也没看懂～]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1181496.html]]></link>
 <author><![CDATA[kylew]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 12 Dec 2011 13:59:57 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼上回答正确。
谢谢！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1181327.html]]></link>
 <author><![CDATA[huyou]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 12 Dec 2011 10:12:27 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用楼主huyou于2011-12-12 15:28发表的 这程序也只有老外才写得出来！ :
[attachment=75984] 
用的是313C的PLC，这段程序愣是没看懂，谁能给解释一下 好不？
[/quote]

M0.1作为常闭触点，M0.0作为常开触点

这种写法不但适用与西门子，而同样适用于其他PLC，因为300系列没有诸如S7-200的常开或者常闭的特殊继电器 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1181279.html]]></link>
 <author><![CDATA[cvlsam]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 12 Dec 2011 08:36:27 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[按这个程序分析意义不大，利用交叉引用调出相关位看看，是否有其它用户功能，要不这个是在调试中无意义的程序，编程人员没有删干净。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-131210#1181266.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 12 Dec 2011 08:15:44 +0000]]></pubdate>
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