這樣，用PLC實現模擬量控制是完全可能的。控制的單位值可小到212分之一的測量程值，多數也是足夠的。

PLC進行模擬量控制，還有A/D、D/A組合在一起的單元，并可用PID或模糊控制算法實現控制，可得到很高的控制質量。

用PLC進行模擬量控制的好處是，在進行模擬量控制的同時，開關量也可控制。這個優點是別的控制器所不具備的，或控制的實現不如PLC方便。

當然，若純為模擬量的系統，用PLC可能在性能價格比上不如用調節器。這也是應當看到的。

3.3用于運動控制

實際的物理量，除了開關量、模擬量，還有運動控制。如機床部件的位移，常以數字量表示。

運動控制，有效的辦法是NC，即數字控制技術。這是50年代誕生于美國的基于計算機的控制技術。當今已很普及，并也很完善。目前，先進國家的金屬切削機床，數控化的比率已超過40％～80％，有的甚至更高。

備貨，備貨，降降降，火火火，火火火……
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CACR-SR07AC1CS  
CACR-SR07AC1CS-Y8 
CACR-SR07AC1ER  
CACR-SR07AC1ER-Y105 
CACR-SR07AC1ER-Y35
CACR-SR07AC1ER-Y48 
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CACR-SR07AC1ES-Y105 
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CACR-SR07BB1AM 
CACR-SR07BB1AM-Y15 
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CACR-SR09TZ0SF 
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CACR-SR10BB1AF-Y114 
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CACR-SR10BB1AM-Y114 
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