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 <title><![CDATA[组态王读仪表里的数值总是正值不显示负号]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461524.html]]></link>
 <description><![CDATA[Latest 50 replies of 组态王读仪表里的数值总是正值不显示负号]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <title><![CDATA[工控人家园]]></title>
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 <title><![CDATA[]]></title>
 <description><![CDATA[modbus读出来的都是正值，仪表的正负号是单独另外的存储区控制的，需要在上位读取对应符号的0或1状态，然后在上位用符号显示出来，我就这么做的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461524#1606762.html]]></link>
 <author><![CDATA[1476536669]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 30 Sep 2014 02:31:44 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我知道]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461524#1606759.html]]></link>
 <author><![CDATA[1476536669]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 30 Sep 2014 02:29:35 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[组态网的MODBUSE 驱动配置时，读取数据块的类型设置有符号整数。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461524#1603173.html]]></link>
 <author><![CDATA[hzc979239936]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 17 Sep 2014 06:53:05 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[看看你的变量设置（下限一定是 0 吧），将下限设成 -999999就可以了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461524#1601665.html]]></link>
 <author><![CDATA[qb2018]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 11 Sep 2014 12:38:17 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[下位不是PLC是MODEBUS-RTU协议的仪表]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461524#1590409.html]]></link>
 <author><![CDATA[quzhihua]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 30 Jul 2014 07:08:55 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[下位机是什么，不是PLC吗？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461524#1589258.html]]></link>
 <author><![CDATA[zbd333]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 25 Jul 2014 12:32:48 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[组态王和触摸屏类似,在新建变量时,有个下限,上限,工程瘅单位什么的一堆,看一下设置]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461524#1588936.html]]></link>
 <author><![CDATA[tkggtdkjpl]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 24 Jul 2014 13:08:19 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[请知道的大侠知道一下呀，挺着急的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461524#1588736.html]]></link>
 <author><![CDATA[quzhihua]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 24 Jul 2014 00:28:56 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[跪求答案]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1461524#1588642.html]]></link>
 <author><![CDATA[quzhihua]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 23 Jul 2014 12:42:21 +0000]]></pubdate>
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