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 <title><![CDATA[西门子1500跟15台安川变频器PN通讯。]]></title>
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 <description><![CDATA[Latest 50 replies of 西门子1500跟15台安川变频器PN通讯。]]></description>
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 <description><![CDATA[用SI-EP3,通讯]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2181784.html]]></link>
 <author><![CDATA[zoujiaqing]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 01 Apr 2021 13:27:26 +0000]]></pubdate>
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 <description><![CDATA[我也在弄，楼主搞好没有]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2181059.html]]></link>
 <author><![CDATA[qiaoziqiang]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 30 Mar 2021 04:08:10 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[凑凑热闹]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2178893.html]]></link>
 <author><![CDATA[情深深雨蒙蒙]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 20 Mar 2021 09:00:11 +0000]]></pubdate>
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 <description><![CDATA[有通讯案例希望能分享，谢谢。[email]13632675@qq.com[/email]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2177390.html]]></link>
 <author><![CDATA[ssgz007]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 14 Mar 2021 05:48:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[csca1
有通讯案例分享一下[email]421860081@qq.com[/email]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2175779.html]]></link>
 <author><![CDATA[yihua1987]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 06 Mar 2021 10:35:14 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[csca1把你做的案例发出来学习一下了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2175778.html]]></link>
 <author><![CDATA[yihua1987]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 06 Mar 2021 10:34:00 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[有通讯案例分享一下[email]349556048@qq.com[/email]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2174192.html]]></link>
 <author><![CDATA[zoujiaqing]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 26 Feb 2021 09:06:40 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[DP都可以，PN肯定没问题，无须IRT，但电机侧要装编码器，比如薄膜机，关键点是高速自动换卷时的同步]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2171940.html]]></link>
 <author><![CDATA[ajunn]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 11 Feb 2021 06:49:59 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第2楼csca1于2020-10-12 21:51发表的&nbsp;&nbsp;:
首先，你要说清楚安川变频器的型号？

我之前做的是S7-1200控制十几台安川H1000变频器，用profibus
 [attachment=248341] 

.......
[/quote]
&nbsp;&nbsp; 这个DP通信我很多年前就做过了，这个没问题的，现在是做PN通信，就是想知道会不会有延迟，毕竟都是P ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2171930.html]]></link>
 <author><![CDATA[秋雨231]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 10 Feb 2021 23:46:30 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[PN通讯是周期通讯，和MODBUS又不一样，又不要自己做轮询，延迟这种东西一般不需要考虑，除非变频器的PN板卡做的不咋地，还有就是电柜内的屏蔽做的不好，如380的电和pn网线交叉影响。另外PN的网线需要选屏蔽及质量较好的双绞线。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2171580.html]]></link>
 <author><![CDATA[尹梦超]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 08 Feb 2021 03:52:35 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我做过1510和10几个丹佛斯变频器的pn通讯]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2171519.html]]></link>
 <author><![CDATA[xgl898398]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 07 Feb 2021 13:28:54 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第5楼sjbandmm于2021-01-30 20:51发表的&nbsp;&nbsp;:
PN是同步通讯的，同步精度远低于你plc的扫描时间，所以不用考虑通讯延迟，反倒是要考虑你怎么写程序才能保证数据在同一个周期内同步刷新。
[/quote]

PN也没有你想象的快。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2170246.html]]></link>
 <author><![CDATA[eledesigner]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 01 Feb 2021 01:28:59 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[PN是同步通讯的，同步精度远低于你plc的扫描时间，所以不用考虑通讯延迟，反倒是要考虑你怎么写程序才能保证数据在同一个周期内同步刷新。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2170043.html]]></link>
 <author><![CDATA[sjbandmm]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 30 Jan 2021 12:51:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:32] 都是牛众人呀]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2170018.html]]></link>
 <author><![CDATA[工控子墨]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 30 Jan 2021 10:59:15 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习学习]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2153705.html]]></link>
 <author><![CDATA[dzh832]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 08 Nov 2020 11:21:44 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[首先，你要说清楚安川变频器的型号？

我之前做的是S7-1200控制十几台安川H1000变频器，用profibus
 [attachment=248341] 

 [attachment=248342]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2148196.html]]></link>
 <author><![CDATA[csca1]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Mon, 12 Oct 2020 13:51:55 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[高端，学习中]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1686943#2140653.html]]></link>
 <author><![CDATA[sqpfanglin]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 01 Sep 2020 14:04:17 +0000]]></pubdate>
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