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 <title><![CDATA[请教各位大侠]]></title>
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 <description><![CDATA[Latest 50 replies of 请教各位大侠]]></description>
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 <description><![CDATA[PLC的实际扫描时间由程序长度及各指令执行所需时间决定，一般不需设定扫描时间，除非需要和某些外设同步才设定扫描时间。但设定扫描时间必须大于实际扫描时间，即只能加大扫描时间。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-119548#1124788.html]]></link>
 <author><![CDATA[znz43]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 13 Sep 2011 11:13:45 +0000]]></pubdate>
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 <description><![CDATA[是扫描周期吧，改D8000的数值就可以了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-119548#1124763.html]]></link>
 <author><![CDATA[281979349lay]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 13 Sep 2011 10:27:00 +0000]]></pubdate>
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