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 <title><![CDATA[各路大神 西门子1200PLC如何检测数据变化]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1654190.html]]></link>
 <description><![CDATA[Latest 50 replies of 各路大神 西门子1200PLC如何检测数据变化]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[流量本身就是累计的，每天记一次就可以了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1654190#1992446.html]]></link>
 <author><![CDATA[libenlong]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 14 Aug 2018 01:05:05 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[不知道]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1654190#1992443.html]]></link>
 <author><![CDATA[lianmao123]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 14 Aug 2018 00:54:15 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[应该是用今天某一时刻累计流量的数值减去昨天的&nbsp;&nbsp;结果大于零 就证明数据有变化]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1654190#1992425.html]]></link>
 <author><![CDATA[天蝎座]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 14 Aug 2018 00:03:25 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[是用流量计测加了多少流量吗？&nbsp;&nbsp;]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1654190#1992352.html]]></link>
 <author><![CDATA[漂泊的石头人]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 13 Aug 2018 08:22:47 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[比如累计流量]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1654190#1992349.html]]></link>
 <author><![CDATA[天蝎座]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 13 Aug 2018 08:15:48 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[检测什么数据？外接设备？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1654190#1992336.html]]></link>
 <author><![CDATA[天要下雨]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 13 Aug 2018 07:16:50 +0000]]></pubdate>
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