福建中立恒自动化设备有限公司

目前，世界上有200多个厂家生产可编程序控制器产品，厂家有德国的西门子，美国的Rockwell(AB)、通用(GE),日本的三菱、欧姆龙，法国的施耐德等。

可编程序控制器总的发展趋势是向高集成度、小体积、大容量、高速度、易使用、高性能方向发展。具体表现在以下几个方面：

(1)向小型化、专用化、低成本方向发展

20世纪80年代初，小型PLC在价格上还高于小系统用的继电器控制装置。随着微电子技术的发展，新型器件大幅度的提高功能和降低价格，使PLC结构更为紧凑，功能不断增加，将原来大、中型PLC才有的功能移植到小型PLC上，如模拟量处理、数据通讯和复杂的功能指令等，但价格不断下降，真正成为继电器控制系统的替代产品。

(2)向大容量，高速度方向发展

大型PLC采用多微处理器系统，有的采用32位微处理器，可同时进行多任务操作，处理速度提高，特别是增强了过程控制和数据处理的功能。另外，存储容量大大增加。

(3)与计算机联系密切

从功能上看，PLC不仅能完成逻辑运算，且计算机的复杂运算功能在PLC中也进一步得到利用，从结构上看，计算机的硬件和技术越来越多地应用到PLC；从语言上看，PLC己不再是单纯用梯形图语言，而且可用多种语言编程，如类似计算机汇编语言的语句表，甚至可直接由计算机语言编程；在通讯方面，PLC与计算机可直接相连并进行信息传递。

(4)发展多样化

可编程序控制器发展的多样化体现在3个方面：产品类型、编程语言和应用领域。

(5)模块化

PLC的扩展模块发展迅速。功能明确化、专用化的复杂功能由专门模块来完成。主机仅仅通过通讯设备向模块发布命令和测试状态，这使得PLC的系统功能进一步增强，控制系统设计进一步简化。

(6)网络与通讯能力增强

计算机与PLC之间以及各个PLC之间的联网和通讯的能力不断增强，使用工业网络可以有效地节省资源、降低成本、提高系统可靠性和灵活性，致使网络的应用有普遍化的趋势。

(7)多样化与标准化

生产PLC产品的各厂家都在大力度地开发自己的新产品，以求占据市场的更大份额。因此产品向多样化方向发展，出现了欧、美、日多种流派。与此同时，为了推动技术标准化的进程。一些国际性组织，如国际电工委员会(IEC)不断为PLC的发展制定一些新的标准，如对各种类型的产品作一定的归纳或定义，或对PLC未来的发展制定一种方向或框架。

(8)工业软件发展迅速

与可编程序控制器硬件技术的发展相适应，工业软件的发展非常迅速，它使系统应用更加简单易行，大大方便了PLC系统的开发人员和操作使用人员。

可编程序控制器的输出信号类型可以是开关量、模拟量和数字量。输出单元从广义上分包含两部分：一是与被控设备相连接的接口电路，另一部分是输出的映像寄存器。

PLC运行时CPU从输入映像寄存器读取输入信息并进行处理，将处理结果放到输出映像寄存器。输出映像寄存器由输出点相对应的触发器组成，输出接口电路将其由弱电控制信号转换成现场需要的强电信号输出，以驱动电磁阀、接触器、指示灯等被控设备的执行元件。

32425 APPLIED MATERIALS VERITY EYED CTLR SPECTROGRAPH SD1024D-2-S

2998 ATAGO ABBE REFRACTOMETER W/ DTM-1 DIGITAL THERMOMETER NAR-1T

2039 R.L.C. ENTERPRISES PCB, CPU BOARD SBC-188A

11678 LAM RESEARCH PCB, ESC BICEP II DC-PROBE POWER SUPPLY 810-495659-308

13591 FAULHABER MOTOR W/SCANCON ENCODER,2RMHF 1024-D NFOA01A22109

14779 APPLIED MATERIALS BLOCK, MIXING, LID GIGA-FILL SACVD 0040-02818

15133 VERIFLO PR REG P/N: 43900884EV AMAT 3800-01093 SQ60302PFSFFEV

24222 ACCU-FAB SYSS PCB, SERVO AXIS CARD, 29091, 14863-0069, B15A8D-AF1 290DE91

14729 KEYENCE 7" COLOUR TOUCH PANEL DISPLAY,VGA,TFT,24DCV, 800MA VT3-V7

25690 PANASONIC AC SERVO MOTOR, SPINDLE MFA050HA5NSD

10976 VARIAN VSEA INTERFACE LOGIC PCB E-E15004080

4941 BALZERS PKR 251 COMPACT FULL RANGE GAUGE, FL-9496 BALZERS BGG26000

18628 TOKYO ELECTRON RF Coaxial Cable Straight Female to Straight 3D86-001956-12

25358 REXROTH INDRADRIVE C HCS02 SERVODRIVE HCS02.1E-W0054-A-03-NNNN

16117 APPLIED MATERIALS BLOCK,TEFLON,CHAMBER LID,GIGA-FILL SACVD 0021-10665

33828 SIEMENS POWER METER, SIMEAS P500 7KG7500-0AA02-0AA0/CC

21073 ADVANCED ENERGY PCB, MULTI-PLATFORM LOGIC/CONTROL 5 2307-A

15818 APPLIED MATERIALS INSERT QTZ INJECT HORIZ 0200-35100

18025 APPLIED MATERIALS ENCLOSURE STAND-ALOPERATOR 0040-03062

32265 JENOPTIK FIBER COUPLED LASER DIODE, 808 NM JOLD-210-CAXF-6A

11273 IWAKI METERING PUMP EH-E56VC-20EPE5

20512 TOKYO ELECTRON PCB, THYRISTOR FIRING CARD DC214,T1

18226 APPLIED MATERIALS BLKER BAFFLE CLEAN PORT ULTIMA HDP-CVD  0020-05327

18236 APPLIED MATERIALS SUPPORT BAR HEAT SHIELD ZX HEATER, 6IN 0020-25991

1290 ALCATEL ROTARY VANE VACUUM PUMP 2002 C1

14990 TOKYO ELECTRON PCB HSDL MFC, TTL-T0060, 2108-020166-11 2180-020798-11

26672 TECUMSEH COMPRESSOR AJ530FT-336-B4

20672 THK KR SERIES LM GUIDE ACTUATOR W/ VEXTA STEPPING MOTOR PH566-A, 33CM KR33

4592 HILBERLING DIODE-LASER POWER MANAGEMENT IT HN-802

13960 APPLIED MATERIALS LASER LID 0020-49100

15157 SWAGELOK 2-VALVE 3-PORT DOUBLE 1/4" FVCR X 1/4" VCR 6L-M1D-122P-IJ

35787 LUMINA POWER POWER SUPPLY DC PULSE 250MA-30A 11001186A

13608 SPECTRA-PHYSICS LASER DIODE WITH OPTICS CABLE 0129-5317

27426 AXCELIS PLATE ASSY 528121

11888 KOLLMORGEN DIGITAL SERVO AMPLIFIER, S3030 1-NA-SB SERVOSTAR 343

1181 SIEMENS PCB 05/0000778,FL 18/6 , 50-60HZ G34924-M1011-H2-B2

24502 ORIENTAL MOTOR CLOSED LOOP STEPPER MOTOR ARM98AC-N25

21255 APPLIED MATERIALS SLIT VALVE LINER 0021-09718

29561 HARMONIC DRIVE DC SERVO ACTUATOR, 9800035476 RH-14D-2702-E050AL-SP(N)

29487 APPLIED MATERIALS CABLE, MODIFIED, AC CH RF FILTER LEFT PROD SE 0150-19536

22221 ADVANTEST PCB ASSY, AFG/AFD PC BGQ-023036

21393 TERADYNE PCB, TW948, 393-380-00, 393-567-05 950-948-02

14932 APPLIED MATERIALS INSULATOR AR, MIXED 0010-13593

21078 ADVANTEST PCB 16M PC PIN BLF-022388 PLF-822388AA1 BMR-021209X04

13261 PMI MOTION TECHNOLOGIES PWM SERVO AMPL, KXA-48-8-16 PS/AUX/PS 0088060-004

22842 APPLIED MATERIALS ELEAL ASSY PVD CHMBR INTLK, 0100-20458 0090-04210

21908 TOKYO ELECTRON RING SHIELD, B3 1D10-304010-12

16642 APPLIED MATERIALS ASSY, HINGE-POS A  D- ILID 0010-10061

12181 REXROTH LIFT TRANSVERSE IT W/ MTR,BELTS  FASTENING KIT 3842547991

2366 VAT PNEUMATIC HIGH VACUUM 12'' SLIT VALVE 02112-AA44-0001

22244 EDWARDS Q SERIES 2 MOTOR CONTROL MODULE TERMINAL BLOCK A38221000

28946 APPLIED MATERIALS RING,FLTG FXD-FLOAT,PRODR SE,OD 27CM, ID 21CM 0200-03313

24219 APTECH PRESSURE REGULATOR AP1415S 2PW MVE4 MVE4 P

11029 BHO OM80 OBSCURATION MONITOR OM80 RL 8.4

32592 APPLIED MATERIALS LINEAR ACTUATOR ASSY 0190-33877

16496 BROOKS ELEVATOR ARM 001-9093-05 001-1957-02 PARTS 002-9010-21

21942 JUSH Chamber it, Dome Case, 30895004 P30895004

L6400 IT MFC MULTI FLO SERIES UFC-8565C

3501 NSK ESA SERVO DRIVER ESA-YA23-11

3472 NSK ESA SERVO DRIVER ESA-Y3040A23-21

7232 KAYDON APPLIED MATERIAL BEARING ASSY, OD 22CM, ID 20CM 15965001

2069 APPLIED MATERIALS ASSY HTR 200MM CPR STD WXZ, 0040-49807 0010-11491

11045 YASKAWA AC SERVO MOTOR, 3000RPM SGMAS-C2AGA-SU12

31183 EBMPAPST BLOWER FAN, 230VAC, 50HZ, 300W RG175/2000-3633-010204

35374 ALLEN-BRADLEY AC SERVO MTR, INV DUTY, KINETIX, 4500RPM TL-A410M-HJ32AA

5050 APPLIED MATERIALS SHIELD, LOWER 300MM PCXT/RPC 0040-86514

14068 TENCOR PCB, ENCODER BREAK-OUT BOARD, LAM 712-214892-000 36831

14927 LAM RESEARCH CLR, PINNED, ADJ LFTR, UPG, 6" 715-032760-106

28924 ASML PCB ASSY 4022.436.7817

30039 TEL PCB ASSY, 2L81-050043-83 W/ TAB113-1/I01-LF TAB217-8/PC2-LF

29959 APPLIED MATERIALS PCB, CLEANER INTLK #1, CDN500R-64 0090-05656

21427 APTECH PRESSURE REGULATOR AP1406TSM 2PW MV4 MVE4 P

21458 APTECH PRESSURE REGULATOR AP1402TS 2PW MVE4 MVE4 P

12858 PITTMAN LO-COG SERVO GEAR MTR, 24VDC, 1000 CPR, P/N: E12002441 9413J968-R2

T266 MKS BARATRON PR TRANSD, 1000 TORR, P/N: 311750-001 850B-23172

17540 BANNER EZ-SCREEN SAFETY LIGHT CURTAIN RECEIVER SLPR14-270NP8

15154 APPLIED MATERIALS WELDMENT MANF SINGLE VLV 2 LINE 6LV-BNBW4-C 0050-09639

18623 APPLIED MATERIALS EMC COMP., HARNESS ASSY LOAD LOCK, 7.8M 0150-76682

22820 ROHDE  SCHWARZ DIGITAL RADIOCOMMICATION TESTER CMD55

9548 APPLIED MATERIALS Kabel Assy, Roboter Kontrolle, 7.53M 0150-35880

12492 APPLIED MATERIALS PCB ASSY HEAD PENUMATIC W/ 0020-78718 0100-77040

12139 FESTO MINI SLIDE DGSL, METRIC SERIES, P/N: 544122 DGSL-16-80-Y3A

21862 APPLIED MATERIALS SHELL ASSY 200MM NOTCH HVIB 0040-09797

32066 NOVELLUS PCB, Sioc PECVD1 Field Connector Bd 02-057663-00

13406 SORENSEN DC POWER SUPPLY, 13A, 80V DCS80-13EM1M52

27323 TOKYO ELECTRON ACT 12 IRA FORK ASSY 2985-429601-13

32901 MKS PROCESS SENSE NDIR ENDPOINT DETECTOR 20704A

C2300 CKD PNEUMATIC REGULATOR MANIFOLD W/ SOLENOID VALVE EV2500-108 EVT-T9DAR

34357 LAM RESEARCH CONTROLLER ASSY, SOURCE 714-140027-322

33775 AAEON EMBEDDED CONTROLLER, ER2 R-TFAEC-6920-0032

17617 INNOLAS ZSB SHUTTER LEFT W/ LENS S6ASS5310/292 19436

15446 DIGI ELECS LCD TOUCH SCREEN HMI DISPLAY W FRAME P/N: 31B0009-00 UF5310-2

15459 KNF VACUUM PUMP W/ ELECTRONICON E33.B48-691505 MPU2352-N828-9.09

11688 NOVELLUS ANODE, GROOVED, BOLT DOWN, 200MM 15-256103-00

1912 ORAM POWER SUPPLY  MODULE LPS 850

31100 JANDEL MINIATURE CARTRIDGE FOUR POINT PROBE HEAD PR 401016B

22489 XYCARB CERAMICS INNER FOCUS RING EXELAN 8", LAM 716-443129-001 10320294

32581 APPLIED MATERIALS LINEAR ACTUATOR ASSY 0190-47186

26709 GRANVILLE-PHILLIPS SERIES 270 IONIZATION GAUGE CONTROLLER 270043

21869 CKD ANGLE VALVE, TEL ES1D12-000007-11 AVB417-X0030

16379 TELEDYNE ISCO PUMP DETECTOR W/ COMBI FLASH COLUMN MODULE COMBIFLASH SQ 16X

13553 SEW-EURODRIVE CMP SYNCHRONOUS SERVO MOTOR PSKF121 CMP50M/BP/KTY/RH1M/SB

4829 AMETEK INDUSTRIAL REGENERATIVE BLOWER, 080554 DR353BR9M

19119 ADVANCED ENERGY PCB, PARAMOT HF LOGIC/CONTROL 2302-B

23261 APPLIED MATERIALS SERIAL-CURRENT LOOP CONVERTER DB9  907.00.67

348 APPLIED MATERIALS PCB DIGITAL I/O BOARD 0100-20003

6949 MKS MFC, MASS-FLO CONTROLLER 1179A00452CR1BV

13434 YASKAWA AC Servo Motor W/023PLX0100-XX-3958X 023 Gearhead SGM-02U3B4L

31705 BOSCH REXROTH TRAVERSE IT, END HEAD, I=1 BG R037160001

34678 IX ROBOSOL KING TEACH PENDANT TPD

32006 APPLIED MATERIALS CMP Carrier Head, Od: 34CM, ID:29.5CM

32869 APPLIED MATERIALS LINEAR ACTUATOR ASSY 0190-24808

19476 ALLEN-BRADLEY DATALINER MESSAGE DISPLAY PANEL 2706-LV2R

17267 ADVANCE SUBMARINE ELECTROPHORESIS SYS INTELLIGENT PS  MUPID-ONE

17786 PARKER DIGIPLAN SERVO CONTROLLER MICROSTEP, PDS SERIES PDS15-2/USA

19159 YASKAWA AC SERVO MOTOR W/O CABLE USAHEM-02-TE53

862 BIO-RAD HYDROTECH VACUUM PUMP -

3682 TOSOH FRACTION COLLECTOR FC-8020

28688 VARIAN VIEWPORT ASSY, R.H., E17136671 E17268700

19857 NIKI TOSHIBA 3-PHASE INDUCTION MOTOR WITH PUMP 15KLD02Z

15063 EBARA TCP 9600 I/F CONTROL PANEL VIF-AA3LRX

13558 APPLIED MATERIALS FACEPLATE,TEOS,PRODUCER,200MM 0041-77693

31307 APTECH TIED DIAPHRAGM REGULATOR AP1510S 5PWCS MV4 MV4FV4FV4FV4

13294 MATROX PCB, FRAME GRABBER PCI BOARD, CORONA_2, P/N: 63039620193 7030_02

28990 XP POWER POWER SUPPLY, FLEXPOWER, 5V - 15V X9-2L2L1D-000001

27503 THK LINEAR ACT, LENGTH: 79CM W/ SERVO MTR SGMJV-01ADA6C VLAST60-06-0700

14255 KEYENCE STATIC ELIMINATION SYSTEM BAR TYPE MAIN IT SJ-R180A

11088 SIEMENS PROFIBUS- DP 9 SLOTS INTERFACE MODULE ET 200S 6ES7 151-3BA23-0AB0

33348 HARMONIC DRIVE DC SERVO ACT 9800032722 W/ ENCODER RH-11D-3001-E100AL-SP(N)

26527 PHD ROTARY ACTUATOR TANDEM 180 DEG AIR/OIL ML25995