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 <title><![CDATA[这两种PLC与变频器通讯方式的区别]]></title>
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 <description><![CDATA[Latest 50 replies of 这两种PLC与变频器通讯方式的区别]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢老师，学习学习。。。。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-114047#1172354.html]]></link>
 <author><![CDATA[雪中梅花]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 26 Nov 2011 23:38:50 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习了.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-114047#1172328.html]]></link>
 <author><![CDATA[ccy5156]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 26 Nov 2011 18:48:59 +0000]]></pubdate>
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 <description><![CDATA[RS485无协议通讯，PLC发什么数据，另外一台设备多会接受，不检查数据是否正确，
RS-485的Modbus-RTU，带了CRC校验。会检查数据是否正确，正确后才做下一步处理]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-114047#1171988.html]]></link>
 <author><![CDATA[xcgksp]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 26 Nov 2011 07:38:08 +0000]]></pubdate>
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