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lvpretend
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樓主  發(fā)表于: 2019-06-30 16:07
不同廠(chǎng)家MODBUS協(xié)議不盡相同（歐系變頻器好像搞了個(gè)相同的MODBUS協(xié)議），多次遇到變頻器壞了，控制走的MODBUS，又沒(méi)有相同廠(chǎng)家的變頻器更換，PLC的程序又沒(méi)有，如何快速的解決這個(gè)難題？
lch8478
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1樓  發(fā)表于: 2019-06-30 16:40
標準Modbus協(xié)議肯定是相同的，不同的控制字、狀態(tài)字；以及寄存器的地址。

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