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guozhongning
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樓主  發(fā)表于: 2018-01-11 09:14
各位高手  請教一下，單片機和plc是怎么通信的，中間是否需要一個(gè)中轉連接的裝置？
suuy79
燒不死的鳥(niǎo)就是鳳凰
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1樓  發(fā)表于: 2018-01-11 11:16
工業(yè)場(chǎng)所盡量使用RS485，不過(guò)環(huán)境好的場(chǎng)所也可以使用RS232

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