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 <title><![CDATA[关于S7-200立即指令]]></title>
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 <description><![CDATA[Latest 50 replies of 关于S7-200立即指令]]></description>
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 <description><![CDATA[立即输入只能是PLC输入点I，立即输出只能是PLC输出点Q,意思是不管你程序扫描到哪个地方，它都立马有变化，跟扫描周期无关，除非你的程序很大，一般用不到，或者可以用在中断程序里面。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1442382#1510336.html]]></link>
 <author><![CDATA[haipingyuer]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 15 Nov 2013 11:38:41 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[立即执行指令，不用等扫描周期到了再执行 [s:28]&nbsp;&nbsp;[s:28]&nbsp;&nbsp;[s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1442382#1510328.html]]></link>
 <author><![CDATA[liu1980]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 15 Nov 2013 11:00:49 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[求助啊，求助啊，求助、。、。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1442382#1510213.html]]></link>
 <author><![CDATA[子雁归时]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 15 Nov 2013 05:02:14 +0000]]></pubdate>
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 <description><![CDATA[关注哦，期待回答]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1442382#1510200.html]]></link>
 <author><![CDATA[360搜索]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 15 Nov 2013 04:46:12 +0000]]></pubdate>
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