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初出陌路
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樓主  發(fā)表于: 2015-09-14 21:03
以前成功通訊完成過(guò)，現在把程序復制 粘貼到一個(gè)新項目中，同一個(gè)變頻器、PLC，程序下載進(jìn)去就不能通訊了。硬件完好，程序正確。
西門(mén)子s7-200 SMART與變頻器V20進(jìn)行MODBUS通訊，應該注意哪些細節？
unorder
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1樓  發(fā)表于: 2015-09-21 15:44
一些設置的程序口設置了嗎

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