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 <title><![CDATA[三菱A PLC&nbsp;&nbsp;编程问题]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418031.html]]></link>
 <description><![CDATA[Latest 50 replies of 三菱A PLC&nbsp;&nbsp;编程问题]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[spd...]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418031#1400305.html]]></link>
 <author><![CDATA[yuanyong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 09 Jan 2013 11:32:10 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用定时器计每次泵来回的时间，然后算平均值，试试]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418031#1400241.html]]></link>
 <author><![CDATA[jk090901]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 09 Jan 2013 08:58:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[呵呵有的我也不会用哦]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418031#1400183.html]]></link>
 <author><![CDATA[wang324521]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 09 Jan 2013 06:40:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[悲剧 A&nbsp;&nbsp; PLC&nbsp;&nbsp;没有SPD 这个指令&nbsp;&nbsp;FX的才支持]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418031#1400152.html]]></link>
 <author><![CDATA[happyzq008]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 09 Jan 2013 05:15:25 +0000]]></pubdate>
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<item>
 <title><![CDATA[Re:三菱A PLC编程问题]]></title>
 <description><![CDATA[[quote]引用第6楼piclijun于2013-01-08 19:03发表的&nbsp;&nbsp;:
脉冲密度SPD
[/quote]
谢谢 我去看看手册&nbsp;&nbsp;这个命令 我没用过]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418031#1399870.html]]></link>
 <author><![CDATA[happyzq008]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 08 Jan 2013 11:16:21 +0000]]></pubdate>
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 <title><![CDATA[Re:三菱A PLC编程问题]]></title>
 <description><![CDATA[[quote]引用第5楼wwcwwc于2013-01-08 16:45发表的&nbsp;&nbsp;:
将该点行程开关信号作为计数器输入命令，然后在单位时间内与报警值做比较，超出数值报警或者将泵速度减小。
[/quote]
我开始也是这个想法，但是A 里面的单位时间 我暂时只想到利用M9034&nbsp;&nbsp;前面 30秒ON&nbsp;&nbsp;后面30秒OFF 的样子&nbsp;&nbsp;
 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418031#1399868.html]]></link>
 <author><![CDATA[happyzq008]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 08 Jan 2013 11:15:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[脉冲密度SPD]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418031#1399859.html]]></link>
 <author><![CDATA[piclijun]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 08 Jan 2013 11:03:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[将该点行程开关信号作为计数器输入命令，然后在单位时间内与报警值做比较，超出数值报警或者将泵速度减小。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418031#1399802.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 08 Jan 2013 08:45:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[spd指令，取x信号]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418031#1399766.html]]></link>
 <author><![CDATA[wananjushi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 08 Jan 2013 08:00:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[补充上贴，用spd指令，取x信号，比较也可。希望对你有帮助！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418031#1399760.html]]></link>
 <author><![CDATA[琴岛工控]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 08 Jan 2013 07:45:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[可以这样，用ALT指令x点每动作两次各输出1个信号，把两个信号间隔用时间比较你设定的值，来报警即可。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418031#1399759.html]]></link>
 <author><![CDATA[琴岛工控]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 08 Jan 2013 07:43:35 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[采集的信号经过运算后和设定的频率比较，超过设定频率就停机，a没用过，fx的有个指令是采集频率用的，可以查手册看看，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1418031#1399737.html]]></link>
 <author><![CDATA[杨宁辉]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 08 Jan 2013 06:57:26 +0000]]></pubdate>
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