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 <title><![CDATA[PLC求助]]></title>
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 <description><![CDATA[Latest 50 replies of PLC求助]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼上比较详细了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-128587#1171267.html]]></link>
 <author><![CDATA[bjbyzh]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 25 Nov 2011 03:59:15 +0000]]></pubdate>
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 <description><![CDATA[S&nbsp;&nbsp; 置位&nbsp;&nbsp; 将输出触点置1
R&nbsp;&nbsp;复位&nbsp;&nbsp;&nbsp;&nbsp;将输出触点置0

SET&nbsp;&nbsp; 将RLO的值置1
CLR&nbsp;&nbsp; 将RLO的置置0

使用S,R的前提条件为RLO的置为1. [s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-128587#1171197.html]]></link>
 <author><![CDATA[cvlsam]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 25 Nov 2011 01:55:46 +0000]]></pubdate>
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