描述
用PLC实现模拟量控制是完全可能的。控制的单位值可小到212分之一的测量程值，多数也是足够的。PLC进行模拟量控制，还有A/D、D/A组合在一起的单元，并可用PID或模糊控制算法实现控制，可得到很高的控制质量。
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NEW Motorola Symbol LS3578-ER Bar Code Reader
Expedited shipping available
Motorola DS6878-SR20007WR -Motorola Symbol DS6878-SR
Includes 2 Year Replacement Warranty
Motorola DS6878-SR20001WR -Motorola Symbol DS6878-SR
Includes 2 Year Replacement Warranty
Symbol Motorola MC9090-K Excellent Condition, Orig Box
Expedited shipping available
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Symbol or Motorola MC9060 MC 9060-G MC 9060
w/ wrnty & bat !! other configs in hse. quantites avail
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Motorola Symbol Barcode Scanner LS3478 USB Wireles NEW
