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 <title><![CDATA[怎么样让一条指令只被执行一次？？？]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115427.html]]></link>
 <description><![CDATA[Latest 50 replies of 怎么样让一条指令只被执行一次？？？]]></description>
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 <description><![CDATA[看看这个对你有没有帮助 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115427#1101499.html]]></link>
 <author><![CDATA[dugjj]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 01 Aug 2011 13:33:44 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[M8002和SM402应该是三菱PLC的FX与Q系列的初始化指令。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115427#1101007.html]]></link>
 <author><![CDATA[330209]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 01 Aug 2011 01:19:43 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[找你们的供货商，这方面有专业的技术员，他们肯定知道。也可以多交流 [s:17]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115427#1100996.html]]></link>
 <author><![CDATA[kkxiaole]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 01 Aug 2011 01:02:32 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用sm0.1调用]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115427#1100751.html]]></link>
 <author><![CDATA[西欧工控]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 31 Jul 2011 11:00:51 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[问题解决，在OB100里面写程序，只执行一次]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115427#1100724.html]]></link>
 <author><![CDATA[lxn1025]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 31 Jul 2011 10:23:52 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[帮你再顶，期待高手解答]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115427#1100703.html]]></link>
 <author><![CDATA[lovefeyer]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 31 Jul 2011 09:38:41 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我再晕。。。。。这是西门子论坛，我却在说三菱的PLC。。。。。。。罪过啊罪过，不知楼主你到底是问那种PLC。。。。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115427#1100701.html]]></link>
 <author><![CDATA[lovefeyer]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 31 Jul 2011 09:31:02 +0000]]></pubdate>
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 <description><![CDATA[补充一下，这个对于不同的PLC CPU 是不同的，比如：M8002 是 FX 系列的，如果是 Q 系列的，就是 SM402 [s:39]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115427#1100699.html]]></link>
 <author><![CDATA[lovefeyer]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 31 Jul 2011 09:29:23 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[他的意思，这个M8002继电器，只在上电的第一个扫描周期ON一次。不知道我理解的是否正确。。。。。。
 [s:26]&nbsp;&nbsp;[s:21]&nbsp;&nbsp;[s:32]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115427#1100698.html]]></link>
 <author><![CDATA[lovefeyer]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 31 Jul 2011 09:26:51 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[p_first_Cycle&nbsp;&nbsp;M8002]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115427#1100687.html]]></link>
 <author><![CDATA[jun888006]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 31 Jul 2011 09:03:17 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[在线等…………………………]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115427#1100685.html]]></link>
 <author><![CDATA[lxn1025]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 31 Jul 2011 08:55:44 +0000]]></pubdate>
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