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ning244687
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樓主  發(fā)表于: 2017-05-08 16:39
wome de ai ai ia
[ 此帖被ning244687在2017-06-14 11:04重新編輯 ]
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1樓  發(fā)表于: 2017-05-08 18:04
一般通訊包含軟件和硬件兩部分：modbus屬于軟件協(xié)議部分。硬件可以走RS232 RS485 也可以走網(wǎng)線(xiàn)�？梢杂胏clink來(lái)做對比，MODBUS確實(shí)是通過(guò)約定一段地址（可以是寄存器，也可以是繼電器）來(lái)通訊

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