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TBUAAVFQ1N00A

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PLC的硬件结构是可变的，软件程序是可编的，用于控制时，非常灵活。必要时，可编写多套，或多组程序，依需要调用。它很适应于产业现场多工况、多状态变换的需要。 
用PLC进行开关量控制实例是很多的，冶金、机械、轻工、化工、纺织等等，几乎所有产业行业都需要用到它。目前，PLC首用的目标，也是别的控制器无法与其相比的，就是它能方便并可靠地用于开关量的控制。 
3.2用于模拟量控制 
模拟量，如电流、电压、温度、压力等等，它的大小是连续变化的。产业生产，特别是连续型生产过程，常要对这些物理量进行控制。 
作为一种产业控制电子装置，PLC若不能对这些量进行控制，那是一大不足。为此，各PLC厂家都在这方面进行大量的开发。目前，不仅大型、中型机可以进行模拟量控制，就是小型机，也能进行这样的控制。 
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，不过是特殊的I/O单元。 
A/D单元是把外电路的模拟量，转换成数字量，然后送进PLC。D/A单元，是把PLC的数字量转换成模拟量，再送给外电路。 
作为一种特殊的I/O单元，它仍具有I/O电路抗干扰、内外电路隔离，与输进输出继电器（或内部继电器，它也是PLC工作内存的一个区。可读写）交换信息等等特点。 
这里的A/D中的A，多为电流，或电压，也有为温度。D/A中的A，多为电压，或电流。电压、电流变化范围多为0～5V，0～10V，4～20mA。有的还可处理正负值的。 
这里的D，小型机多为8位二进制数，中、大型多为12位二进制数。 
A/D、D/A有单路，也有多路。多路占的输进输出继电器多。 
有了A/D、D/A单元，余下的处理都是数字量，这对有信息处理能力的PLC并不难。中、大型PLC处理能力更强，不仅可进行数字的加、减、乘、除，还可开方，插值，还可进行浮点运算。有的还有PID指令，可对偏差制量进行比例、微分、积分运算，进而产生相应的输出。计算性能算的它几乎都能算。 
这样，用PLC实现模拟量控制是*可能的。控制的单位值可小到212分之一的丈量程值，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。 
PARKER 01.50 BB2HLUS14 4.125 2H 4.125 IN 3000PSI HYDRAU

NEW PARKER C BB-3L 28C 2 IN 1 IN 1000PSI HYDRAULIC CYLI

TRC HYDRAULICS END 2-1/2 IN DOUBLE ACTING HYDRAULIC CYL

PARKER 02.00 CD2HUS13AC 18.500 SERIES 2H 18-1/2 IN 2 IN

PARKER BB3LLU14A DOUBLE ACTING 28IN 4IN 900PSI HYDRAULI

NEW ENERPAC SLLD21 D/A LOWER FLANGE SWING 500LBS HYDRAU

PARKER 2.00 CBB2HKT24AC 14.000 2H 14 IN 2 IN 3000PSI CY

PARKER H2HLTS182A DOUBLE ACTING 12IN 2-1/2IN 3000PSI HY

PARKER H2HLTS182A DOUBLE ACTING 1 IN 2-1/ IN 3000PSI HY

PARKER 08.00 T3HKUS13A 4.750 4-3/4IN 8IN 3000PSI HYDRAU

NEW AURORA 11SMS5C48GF4 STAINLESS 6IN 1-1/4IN 500PSI HY

HYDRO-LINE LA5A-2X16-N-.63 2-N-N-F-1-1 16IN STOKE 2IN H

HYDRO-LINE HR5F2.5X.5 N-1.38-2-S-H-N-?1-1 HYDRAULIC CYL

PARKER DOUBLE ACTING 23 IN 2 IN HYDRAULIC CYLINDER B307

NEW JERGENS 121-060307 SINGLE 1IN 1-1/2IN 3000PSI HYDRA

HANNA MP12HNC2.50 DOUBLE ACTING 12 IN 2-1/2 IN HYDRAULI

MAREN ENGINEERING N2F-3.25X11 11IN 3-1/4IN HYDRAULIC CY

HANNA MP12HNC2.50 DOUBLE ACTING 12 IN 2-1/2 IN HYDRAULI

JERGENS 60512 WORK SUPPORT BLOCK 1/16IN NPT 3000PSI 1.6

HYDRO-LINE HR5DC-1.5X1-N-.?63-2-N-N-N-1-1 1IN 1-1/2IN HY

NEW SCHRADER BELLOWS PLC118542 14.000 14IN 1400PSI HYDR

MILWAUKEE 510-62-54-1 DOUBLE ACTING 10IN 2 IN 1500PSI H

NEW 23IN STROKE 2-1/2IN BORE HYDRAULIC CYLINDER D315593

NEW STEEL 21 IN STROKE 2-1/2 IN BORE HYDRAULIC CYLINDER

NEW HANNA T751CC 2.00 .75 S 2 A 3/4IN STROKE 2IN BORE H

NEW TG10C4GC 11.313 IN 1-1/2 IN 3000PSI HYDRAULIC CYLIN

STAR HYDRAULICS 710556 6-1/2IN 1-1/2IN HYDRAULIC CYLIND

HYSTER FORKLIFT BRAKE WHEEL HYDRAULIC CYLINDER B435756

NEW 3IN STROKE 5-1/2IN BORE HYDRAULIC CYLINDER D413275

NEW HYDRO-LINE A5F-2.5X1-B-1-2?-N-N-N-1-1 HYDRAULIC CYLI

METSO VAL0182786 4 IN 3000PSI HYDRAULIC CYLINDER B23882

NEW PARKER 02.50 BB3LCTS14AC 12.000 12IN 2-1/2IN HYDRAU

METSO VAL0086926 50/30X150 HYDRAULIC CYLINDER B361034

HYDRO-LINE N5A-1.5X9 9 IN STROKE 1-1/2 IN BORE HYDRAULI

METSO NTS6LV-80/50+40?+PA-200-B/K-0 HYDRAULIC CYLINDER B

PARKER H2HUS28A 11 IN 1-1/5 IN DOUBLE ACTING HYDRAULIC 

PARKER BB2HCTS24A 2H 15 IN 2 IN 3000PSI DOUBLE ACTING H

NOPAK 702181 19 IN 2.5 IN DOUBLE ACTING HYDRAULIC CYLIN

MILWAUKEE HC-228 DOUBLE ACTING 10IN 2IN 1500PSI HYDRAUL

MARCHANT SCHMIDT LH42-LS B16465 23-1/2 IN 3-1/4 IN HYDR

HORIUCHI MACHINERY F8-SB 90MM STROKE 32MM BORE 7MPA HYD

HANNA MF2 3A CC 2.00 5.00 DSF1A K09040701 5 IN 2 IN HYD

NEW 7006-5109 DOUBLE ACTING 8 IN HYDRAULIC CYLINDER B28

MTC 9-134 16IN STROKE 2-1/2IN BORE HYDRAULIC CYLINDER D

NEW SHEFFER 1 1/2MHSL8K 1/4IN NPT 8 IN 1-1/2 IN HYDRAUL

ATLAS A072363A 19-1/2IN LENGTH DOUBLE ACTING 4 IN HYDRA

REXROTH CD 70E 50/20 18 IN 1-1/2 IN DOUBLE ACTING HYDRA

6696 AS-795 12IN STROKE 3-1/2IN BORE HYDRAULIC CYLINDER

JKV STEEL 8 IN 3-1/2 IN HYDRAULIC CYLINDER B297718

NEW JKV POLARTEKNIK 2300-R4/50-YO-2?5-20 HYDRAULIC CYLIN

HYDRO-LINE HR5DC-2X23 DOUBLE ACTING 23 IN 2 IN HYDRAULI

NEW SHEFFER 3-1/4HHFFII 11IN STROKE 3-1/4IN BORE HYDRAU

ATLAS A070004088A 4 IN DOUBLE ACTING HYDRAULIC CYLINDER

TRC HYDRAULICS 2-3/4 IN 2000PSI HYDRAULIC CYLINDER B428

NEW PARKER BB3LCTS24AC 3L 12IN STROKE 1-1/2IN BORE HYDR

MANNESMANN REXROTH MF1-PH 8-3/4IN STROKE 1-1/2IN BORE H

NEW EATON LR5C-2.5X36 DOUBLE ACTING 36 IN 2-1/2 IN HYDR

NEW REXROTH C-MP1-PH-C 36IN STROKE 3-1/4IN 1500PSI HYDR

ATLAS S64A HT DOUBLE ACTING 18 IN 6 IN HYDRAULIC CYLIND

TRC HYDRAULICS I169010 7 IN 5 IN DOUBLE ACTING HYDRAULI

NEW APACHE M11779-B 30IN STROKE 3-1/2IN BORE HYDRAULIC 

RAM R4503355 R7-35SS-13.5 13-1/2X3-1/2 IN 1500PSI HYDRA

313040 14 IN STROKE 3-1/2 IN BORE HYDRAULIC CYLINDER D4

M-25-12-10 HYDRAULIC DOUBLE ACTING 12 IN 2-1/2 IN CYLIN

ENERGY HYDRAULICS C-559 CYLM-3008 8IN STROKE 3IN BORE H

CA-VERKEN AB 100/60-50/83 SH-443 HYDRAULIC CYLINDER B45

NEW PARKER 04.00 KJB-TC3LLTS1414 7.870 HYDRAULIC CYLIND

PARKER 02.00 BB2HLT14A 14.250 SERIES 2H 14-1/4 IN 2 IN 

NEW UHRDEN 7006-5110 DOUBLE ACTING 16 IN 3 IN HYDRAULIC

HYDRO-LINE HR5F-1.5X7 N-1-2-N-H-N-1-1?-X 7IN 1-1/2IN HYD

HYDRO-LINE N5FD-1.5X6 B-.63-4-N-F-R-1?-1 6IN 1-1/2IN HYD

PARKER BB2HCUS23A 2H 16.25IN 1.5IN 3000PSI HYDRAULIC CY

LAMB-GRAYS HARBOR 699547 18 IN 2-1/2 IN 3000PSI HYDRAUL

KALMAR K5173000 16 IN 3-1/2 IN HYDRAULIC CYLINDER D2095

METSO APL3017986 13 IN 4 IN 3000PSI HYDRAULIC CYLINDER 

NEW CA-00069 AA12 24IN STROKE 3IN BORE HYDRAULIC CYLIND

COWAN SED2NC-05 STROKE BORE 5 IN 2-1/2 IN HYDRAULIC CYL

COWAN SED2NC-06 6IN STROKE 2-1/2IN BORE HYDRAULIC CYLIN

METSO VAL0183022 13 IN 3-1/4 IN 3000/1500PSI HYDRAULIC 

METSO APL3002920 13 IN 3-1/4 IN HYDRAULIC CYLINDER 4000

NEW K-TRON 2320-26 3 IN STROKE 7/8 IN BORE HYDRAULIC CY

SHEFFER HR5F-2X11 11 IN STROKE 2IN BORE HYDRAULIC CYLIN

HYDRO-LINE R5MC-1.5X26.5 26-1/2IN STROKE 1-1/2IN BORE H

NEW CONFORTI RP SX 40/22X50 50MM 40MM 160BAR HYDRAULIC 

HYDRO-LINE R2C 2.5X1 1 IN 2-1/2 IN DOUBLE ACTING HYDRAU

PARKER CBB2HT382AG DOUBLE ACTING 18IN 2-1/2IN 3000PSI H

NEW SHEFFER 1 1/2HHRFX12CC ACTING 12 IN 1-1/2 IN HYDRAU

PARKER 2.00CBC3LLUS18A?C4.500 4-1/2IN 2IN HYDRAULIC CYLI

HYDRO-LINE N5C-2.5X37.5-B 37-1/2IN 2-1/2IN 3000PSI HYDR

ATLAS A070004467A DOUBLE ACTING 14 IN 3 IN HYDRAULIC CY