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646058138
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樓主  發(fā)表于: 2014-11-14 11:35
我知道如315-2DP有兩個(gè)MPI多點(diǎn)接口（貌似是9針or15針），但書(shū)上說(shuō)，每個(gè)cpu都有一個(gè)編程用的RS485接口。

我理解，MPI接口可以走多種協(xié)議，300走的是RS485的，所以，又叫RS485接口，對么？
uploader
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1樓  發(fā)表于: 2014-12-28 15:04
很好，很好，繼續學(xué)習探討。

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