描述
PLC进行模拟量控制，要配置有模拟量与数字量相互转换的A／D、D／A单元。它也是I/O单元，不过是的I/O单元。A/D单元是把外电路的模拟量，转换成数字量，然后送入PLC。D/A单元，是把PLC的数字量转换成模拟量，再送给外电路。
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NITTAN TECHNO ACM-20 CRIMPING MACHINE
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MITUTOYO 526-156 DIAL BORE GAUGE SET
Intelligent Products Thermal Compression Bonder Mechan
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