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joker1874
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樓主  發(fā)表于: 2017-07-31 11:25
S7-200 Smart與Modbus RTU設備通訊，Smart作為從站，我在PC上用串口調試工具去測試，數據發(fā)送區需要發(fā)送什么指令，舉個(gè)例子說(shuō)明一下。
Smart硬件需要滿(mǎn)足什么條件，端口需要用哪個(gè)？
吾志所向
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1樓  發(fā)表于: 2017-08-07 22:14
Smart不是有網(wǎng)口嗎？可以直接網(wǎng)絡(luò )通訊啊，看看這篇文章：
http://blog.sina.com.cn/s/blog_16d7d3ecb0102x1z5.html

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