这样，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。

用PLC进行模拟量控制的好处是，在进行模拟量控制的同时，开关量也可控制。这个优点是别的控制器所不具备的，或控制的实现不如PLC方便。

当然，若纯为模拟量的系统，用PLC可能在性能价格比上不如用调节器。这也是应当看到的。

3.3用于运动控制

实际的物理量，除了开关量、模拟量，还有运动控制。如机床部件的位移，常以数字量表示。

运动控制，有效的办法是NC，即数字控制技术。这是50年代诞生于美国的基于计算机的控制技术。当今已很普及，并也很完善。目前，先进国家的金属切削机床，数控化的比率已超过40％～80％，有的甚至更高。

备货，备货，降降降，火火火，火火火……
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1746-NO8I 

1746-NO8V 1746-NR4 1746-NR8 1746-NT4 1746-NT8 1746-BLM 
   
1746-BTM 1746-HSCE 1746-HSCE2

CACR-SR01AA2AH-Y3 
CACR-SR01AA2AH-Y314 
CACR-SR01AB1ER 
CACR-SR01AB1ER-Y1 
CACR-SR01AB2ER 
CACR-SR01AB2ER-Y10 
CACR-SR01AB2ER-Y105 
CACR-SR01AC1ER  
CACR-SR01AC1ER-Y102 
CACR-SR01AE1ER 
CACR-SR01AY1SR  
CACR-SR02AA2AH  
CACR-SR02AB1ER 
CACR-SR02AB1ER-Y
CACR-SR02AB1ER-Y1 
CACR-SR02AB2ER 
CACR-SR02AB2ER-Y1 
CACR-SR02AC1ER-Y27 
CACR-SR02AC1ER-Y3 
CACR-SR02AC2ER  
CACR-SR02AD1ER 
CACR-SR02AD1FR  
CACR-SR02AD1FR-Y111  
CACR-SR02AD1FR-Y119 
CACR-SR02AY1SR 
CACR-SR02AZ1SR-Y2 
CACR-SR02BE12G-E 
CACR-SR02BY1SG-E  
CACR-SR03AA2AH 
CACR-SR03AB1ER  
CACR-SR03AB1ER-Y1 
CACR-SR03AB1ER-Y3
CACR-SR03AB1ER-Y82 
CACR-SR03AB2ER 
CACR-SR03AB2ER-Y105 
CACR-SR03AC1ER 
CACR-SR03AC1FU  
CACR-SR03AD1KR
CACR-SR03AD1KR-Y101 
CACR-SR03AD1KR-Y110 
CACR-SR03BB1AF 
CACR-SR03BB1AF-Y114 
CACR-SR03BB1AF-Y338 
CACR-SR03BB1AM 
CACR-SR03BB1AM-Y114 
CACR-SR03BB1BF 
CACR-SR03BB1BF-Y199
CACR-SR03BB1CS 
CACR-SR03BB1CS-Y37  
CACR-SR03BB1ES
CACR-SR03BB1HS 
CACR-SR03BC1AF-Y244 
CACR-SR03BC1AM 
CACR-SR03BC1CS-Y159 
CACR-SR03BC1ES 
CACR-SR03BC1KS-Y264 
CACR-SR03BE12F-E 
CACR-SR03BE12G-E 
CACR-SR03BE12M 
CACR-SR03BE13S 
CACR-SR03BE13S-E  
CACR-SR03BY1SF-C 
CACR-SR03BY1SG-E  
CACR-SR03BZ1SF 
CACR-SR03BZ1SS 
CACR-SR03BZ1SS-Y367 
CACR-SR03SB1AF 
CACR-SR03SB1AF-Y187
CACR-SR03SB1AS-Y124 
CACR-SR03SB1BF 
CACR-SR03SB1BF-Y199 
CACR-SR03SZ1SS 
CACR-SR03SZ1SS-Y10 
CACR-SR03SZ1SS-Y106 
CACR-SR03SZ1SS-Y109 
CACR-SR03SZ1SS-Y2 
CACR-SR03SZ1SS-Y215 
CACR-SR03SZ1SS-Y22 
CACR-SR03SZ1SS-Y223 
CACR-SR03SZ1SS-Y226 
CACR-SR03SZ1SS-Y230 
CACR-SR03SZ1SS-Y41 
CACR-SR03SZ1SS-Y84 
CACR-SR03TB5BM 
CACR-SR03TZ0SF-Y01A 
CACR-SR03TZ0SM 
CACR-SR03TZ6SF
CACR-SR03TZ6SM-E 
CACR-SR03TZ6SS 
CACR-SR03TZ6SS-Y41 
CACR-SR03TZ9SF-Y01A 
CACR-SR03TZ9SM-Y01A 
CACR-SR05AA2AH 
CACR-SR05AA2AH-Y3 
CACR-SR05AA2AH-Y314 
CACR-SR05AA2AH-Y315 
CACR-SR05AA2AH-Y318 
CACR-SR05AA2AH-Y328 
CACR-SR05AB1ER 
CACR-SR05AB1ER-Y1 
CACR-SR05AB1ER-Y11 
CACR-SR05AB1ER-Y19 
CACR-SR05AB1ER-Y37 
CACR-SR05AC1ER 
CACR-SR05AC1ER-Y 
CACR-SR05AC1ER-Y3 
CACR-SR05AC2ER 
CACR-SR05AD1KR-Y101 
CACR-SR05AD1KR-Y111 
CACR-SR05AY1SR 
CACR-SR05AZ1SR-Y4
CACR-SR05BA1AM  
CACR-SR05BB1AF  
CACR-SR05BB1AF-Y114 
CACR-SR05BB1AM 
CACR-SR05BB1AM-Y114 
CACR-SR05BB1BF 
CACR-SR05BB1BS  
CACR-SR05BB1ES 
CACR-SR05BB1ES-Y114 
CACR-SR05BB1ES-Y8 
CACR-SR05BC1CS-Y159 
CACR-SR05BC1ES 
CACR-SR05BC1ES-Y278 
CACR-SR05BE12G-E 
CACR-SR05BY1SF-C  
CACR-SR05BY1SG-E  
CACR-SR05BZ1SF 
CACR-SR05BZ1SS 
CACR-SR05BZ1SS-Y367 
CACR-SR05SB1AF F 
CACR-SR05SB1AF-Y187 
CACR-SR05SB1BF
CACR-SR05SB1BF-Y187 
CACR-SR05SZ1SS-Y110 
CACR-SR05SZ1SS-Y85 
CACR-SR05TZ6SFE 
CACR-SR05TZ6SSE 
CACR-SR06TB5BM 
CACR-SR06TZ6SM 
CACR-SR06TZ6SM-E 
CACR-SR06TZ9SM-Y01A 
CACR-SR07AC1CS  
CACR-SR07AC1CS-Y8 
CACR-SR07AC1ER  
CACR-SR07AC1ER-Y105 
CACR-SR07AC1ER-Y35
CACR-SR07AC1ER-Y48 
CACR-SR07AC1ES 
CACR-SR07AC1ES-Y105 
CACR-SR07AY1SR-Y105 
CACR-SR07BB1AM 
CACR-SR07BB1AM-Y15 
CACR-SR07BZ1SM  
CACR-SR09TZ0SF 
CACR-SR09TZ6SF 
CACR-SR09TZ6SF-E 
CACR-SR09TZ6SM-E 
CACR-SR10BB1AF 
CACR-SR10BB1AF-Y114 
CACR-SR10BB1AF-Y8 
CACR-SR10BB1AM  
CACR-SR10BB1AM-Y114 
CACR-SR10BB1BF 
CACR-SR10BB1BF-H 
CACR-SR10BB1BM 
CACR-SR10BB1BS 
CACR-SR10BB1CS 
CACR-SR10BB1CS-Y114  
CACR-SR10BB1CS-Y37 
CACR-SR10BB1CS-Y8 
CACR-SR10BB1ES-Y114 
CACR-SR10BB1ES-Y17 
CACR-SR10BC1AF 
CACR-SR10BC1AF-Y172 
CACR-SR10BC1KS-Y262 
CACR-SR10BE12F-E 
CACR-SR10BE12G-E 
CACR-SR10BE12G-Y72
CACR-SR10BY1SF-C 
CACR-SR10BY1SF-E