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huangweifeng
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樓主  發(fā)表于: 2017-09-14 11:30
我想用 臺達COM2口485通訊,來(lái)讀取變頻器發(fā)生故障時(shí)信號,來(lái)判斷變頻器是否好壞,不要告訴我上面有異常輸出的點(diǎn)位(這個(gè)我知道,就PLC輸入點(diǎn)不夠了),求大神告之
zhangqi_1234
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1樓  發(fā)表于: 2017-09-14 11:58
用MODBUS通信,有關(guān)變頻器的存儲器信息,請查閱變頻器的通信手冊
樓主留言:
我網(wǎng)上沒(méi)有找到三菱變頻器通訊協(xié)議參數表,如果你有對應的程序可以給我一下嗎
zhangqi_1234
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2樓  發(fā)表于: 2017-09-18 20:55
你用的是臺達變頻器,它的MODBUS尋址與三菱的不一樣。你應該找臺達變頻器的手冊。我這里沒(méi)有這種變頻器的手冊。

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