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。

PM10AL4763-611060 / RETICLE .250 THICKNESS DPI KRF 7043 MATTE / NIKON

0010-54318 /ASSY 4 ZV2 FIXED F CENTURA CENTRIS DPS2 / APPLIED MATERIAL

3Z80-000336-11 / BELLOWS Z DRIVE HT / TOKYO ELECTRON AMERICA INC

PMP03990 / HI PACE 300 TURBO PUMP PFEIFFER VACUUM / PFEIFFER

0040-03932 / ADAPTOR UPPER, SIP-CU 290MM, WATER COOLE / APPLIED MATERIALS AMAT

219860 / PS15 PRE ACCEL POWER SUP WALLIS HI-VOLT 2A2 SERIES 900 C.U. / FARNELL

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BG4-5164 / PA-USM,LASER ROTARY ENCODER ASSY CANON I3 FEED HAND 81000 P-R /CANON

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737A505A / LV VSEA UES PUMP  HEATER INPUT 520.5 VDC 240W 45HZ / RICOR CRYO

2-VC-27647 GEYH-002 /ELECTRONICS ASSY SK-200 WITH GECC PCB W-EXCHANGE / DNS DAI

E11114360 / PROCESS MODULE CONTROLLER / VARIAN

1110-01046 / NTWRK MATCH 12.56MHZ 2.5KW AZX 90 DOME R AE 3155086-002 / AMAT

8070-0102-01 / 6MM LASER HEAD ZMI SERIES 400MW CLASS II / ZYGO

0020-87845 / LINER, CATHODE Y203 W/SCREEN DPSII / APPLIED MATERIALS AMATT

2479419-01 / ASSY ELEC MSCX PC SERVER / ASM AMERICA INC

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0021-27405 / 300MM LID WITH LEXAN COVER / APPLIED MATERIALS AMAT

3M87-024252-29 / MODULE CONTROLLER TRIAS STD / TOKYO ELECTRON TEL

3M80-039529-13 / MODULE CONTROLLER,500W / TOKYO ELECTRON TEL

VEI9007850 / POWER SUPPLY MODULE SERIES 3000 OL/3000/353/02 / ADVANCE HI-VOLT

42570-00 / ELECTRODE MANIPULATOR / GENUS

8033168 / CRYO-TORR 8 CRYOPUMP ANSI H2 BULB GAUGE / CTI CRYOGENICS

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STP-H1000C / PUMP, TURBO 208V 1PH 50-60HZ 5M-CA ISO200 CONTROLLER / SEIKO SEIKI

1995112001 U / OP HEAD ASSY. TEST HANDLER / DELTA

1995113001 R / IP HEAD ASSY. TEST HANDLER / DELTA

1003-619-01 /TOP VIEW GLASS / ASM AMERICA INC

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60-135046-00 /  BOC EDWARDS IPX500A DRY PUMP A409-14-977 / NOVELLUS

V5A / COMPUTER VIPER 2401 REV A / KLA TENCOR CORPORATION

0200-02731 / INSULATOR, INTERNAL CERAMIC RING, 300MM / APPLIED MATERIALS AMAT

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1110-354491-11 / TS4000Z DISPLAY PANEL, ALPHA-8S / TOKYO ELECTRON TEL

0020-28645 / SPACER K3 P4 13 SOURCE W B / APPLIED MATERIALS AMAT

27-169988-00 / MICROWAVE GENERATOR 2KW AIXCON Y2000 PEP PLUS 94-3075 / GASONICS

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0040-88628 / SHOWERHEAD HEATED BRAZED 300MM / APPLIED MATERIALS AMAT

1525600 / ASSY PCB PLASMA FLOOD DI / AXCELIS TECHNOLOGIES

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CO2-00344 / RITTAL, PUMPING MODULE, 70110A / RITTAL

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0040-37265 / BASE, COOLING, 200MM CATHODE, DUAL HE DPS / APPLIED MATERIALS AMAT

853-037606-301 / 853-037606-301 EXCELAN MAG FLEX TCP TCCT COIL / LAM CORP

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817016 / CONTROLLER ACTUATOR IT, VAT SERIES 615 BU / VAT

15132-01 / ROBOT, WAFER MOVER, 3 AXIS,1-0000-27 / BROOKS AUTOMATION

0010-6 / BASE PLATE ASSEMBLY / APPLIED MATERIALS AMAT

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05312-LA24-AIY1/0497 / GATE VALVE-WITH BONDED 490097, 589286/ VAT

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TKB3500 / BOARD, MOTOR I-O NUM.01 / TOKYO ELECTRON TEL

0240-31874 / KIT, PROCESS 8" SR, JMF, WXZ / APPLIED MATERIALS AMAT

30712640100 / ASA ASSY / APPLIED MATERIALS AMAT

9400110015 / AT SERIES AUTOMATIC MATCHING NETWORK, AT25VFC / SEREN

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398861 / OZMONITOR ASSY SOLID STATE / AXCELIS TECHNOLOGIES

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1075227-703R / RD CONTROLLER - VERTEQ 1600-HC CONTROLLER / VERTEQ

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IN-2000 L2-RM / OZANALYZER DUAL CHANNEL / IN USA, INC.

3900057 / FRU ASSY PCA AMPLIFIER 3PHASE 0312143-000 0320404-001 / KLA

UG87-000627-11 / EPION PEG BODY 073-000123-1 RUBY BALLS ASSY FMK 700 ETCH / TEL

RE 586-6221 /D2 CHASSIS ASSY, FAN 4201W /HITACHI

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0041-00817 / LOWER CHAMBER ADAPTER 300MM AMAT RADIANCE / APPLIED MATERIALS

E11021390 / VARIAN ASSY INTERFACE, E500/E220 / VARIAN

PS-7000 / 16 CHANNEL ALARM CONTROLLER WITH GRAPHIC DISPLAY / DOD TECHNOLOGIES

9698923 / TURBO PUMP TV 551 NAVIGATOR / VARIAN

0605-30010 / BAASEL LASERTECH BL-292 POWER SUPPLY / ROFIN-BAASEL, INC.

423013-9010-000 / FIBER OPTIC LIGHT BEAM LQ-HXP120-CAN-Z-V/ ZEISS

E11115130 / CONTROLLER WAFER LIFT / ELEVATOR / ROBOT / VARIAN

MD-9201227 / TEL LHP HOT PLATE IT / TOKYO ELECTRON TEL

0010-09337 / LAMP MODULE ASSY 200MM 5000 CVD / APPLIED MATERIALS AMAT

1181-000821-12 / PCB 2184-020028-12, MDC FOR ALPHA-8SE / TOKYO ELECTRON TEL

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E11144020 / VARIAN MANIPULATOR CONTROLLER / VARIAN

50817-1220R05 / TEACH PENDANT / KAWASAKI DAI NIPPON SCREEN

853-219546-001 / 300MM VORTEX ALIGNER INSTL HYBRID COMBO / LAM RESEARCH CORP

CYBEQ 8000 SINGLE ARM WAFER ROBOT, 0125-7002 / INTEGRATED DYNAMICS ENGINEERING

42039-001 / FSI CHUCK BELLOWS, 42039-001, 428124-1 / FSI

0010-09978 / ASSY, LAMP MODULE / APPLIED MATERIALS AMAT

0190-B0150 / ADV. REFURB. LDU ESI GEM1KHZ AL 193NM 1127985 / APPLIED MATERIALS

BG4-6974 / ECD PCB / CANON

0040-60980 / LID SGD SHOWER HEAD 300MM EMAX CHAMBER LID / APPLIED MATERIALS AMAT

PFD3-322A / BELLOW PUMP, TEFLON, 12GPM-1 FLARE FLUID / KINETICS CHEMPURE SYSTEMS

3152603-018 / E-WAVE 2 CHANNEL POWER SUPPLY 40A 48V / ADVANCED ENERGY

3381-001038-13 / BOARD, ILLUMINATION CONTROL RF, 3380-007053-13 / TOKYO ELECTRON

0010-91368 / ASSY ORIENTOR HEAD 125MM / APPLIED MATERIALS

GASGUARD AP3 / AP3 CONTROLLER DUAL, MONO, 809-606308H / AIR PRODUCTS

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0040-99548 / CHAMBER LINER LEFT / APPLIED MATERIALS AMAT

0040-99549 / CHAMBER LINER RIGHT / APPLIED MATERIALS AMAT

22698-01 / QUARTZ DOOR PLUG EVACUATED / TOSOH

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0040-32543 /RING MAGNET LOWER/ APPLIED MATERIALS AMAT

27-050014-01 / CONTROLLER INDEXER ROBOTS CE T2 CDP2407-1 ANIMATICS / NOVELLUS

0190-40671 / CH AC DIST  DUAL HTR DRIVERS, 1ATAMT0190040671R / AMAT

1000009335 / INNOVA AIR TECH PN 3432A POC ANALYZER / PARTICLE MEASURING SYSTEMS

452811-9901 / AXIOTRON MICROSCOPE ASSY / CARL ZEISS

0500-00224 / HEATER-SUSCEPTOR 3-CHANNEL LEVELING SYSTEM / APPLIED MATERIALS AMAT

780-10727-002 /PCB, HCI HARDWARE CONTROL INTERFACE CDSEM 8XXX 820-06224-003/ KLA

GERM-101 TR2 ROBOT ASSY / TR2 ROBOT ASSY TSL120-1651 S5R855 / DNS DAI NIPPON

0041-30410 / PRODUCER RIGHT ARM 300MM PRO / APPLIED MATERIALS AMAT