6772| 11
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PLC是怎樣控制中間繼電器的 |
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點(diǎn)評(píng)
請(qǐng)問PLC輸出端輸出信號(hào)是如何去驅(qū)動(dòng)繼電器的線圈,?
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點(diǎn)評(píng)
說的非常好
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