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。

2-AE-F0750 / GLASS WAFER / SCREEN SPE USA LLC

0021-43577 / EDGE RING TXZ / APPLIED MATERIALS AMAT

0020-32909 / ESC, PEDESTAL 200MM NOTCH / APPLIED MATERIALS AMAT

AP9E-007C-11 / GHOST PCI BOARD

0020-01125 / WGROD PLATE, POLY / APPLIED MATERIALS AMAT

879-652-00 / PCB TH UTILITY / TERADYNE

715-011913-080 ()/ PLATE, LOWER BAFFLE, 8IN / LAM RESEARCH

QCDVATX0F / QUICKCHANGE ATX FILTER 0.1UM 3/4 FLARE / MILLIPORE

919471-001 / HEATER JACKET, ASSY, UPPER FORELINE / NSI

102999-001 / PCB BOARD, 102998-002 / MICRO CONTROL COMPANY

10020190 / 8250 CHUCK RESTRAINT / AXCELIS TECHNOLOGIES

ES1805-220177-22 / RING SHIELD HARD-LD H6..SCCM-OX 300MM / TOKYO ELECTRON TEL

PCI-CPU4 PC-04028B-0123 / MASTER ALINK, 94V-0 / ALGO

1080-00143 / AC SERVO MOTOR 100W 200V W/INCR ENCOD SGMPH-01AAE-YA11 / AMAT

228-005 / FLOWMETER-ODYSSEY /FUTURESTAR

414501 / PWB ASSY, SMIF LOADER CONTROL BOARD, 414491 / FUSION SEMICONDUCTOR

1789830 (LOT OF 7) / GRAPHITE REPELLER PLATE / AXCELIS TECHNOLOGIES

421132-000 / KIDDE DUAL SPECTRUM FLAME DETECTOR PM-5MPX / DET-TRONICS 421132-000

0020-21028 /BLADE 8 TRANSFER FROG LEG /APPLIED MATERIALS AMAT

MSMD041G1T / MOTOR ASSY, HANDLER Z AC SERVO MOTOR / PANASONIC

UP-897MD / VIDEO GRAPHIC PRINTER / SONY

 UP-897MD / VIDEO GRAPHIC PRINTER / SONY

6799E4 / CONDENSOR FAN 3 HASE 380-440V 1290RPM 147W / NICOTRA

SDC11068G / WBL-PS11V68A ADVANTEST POWER SUPPLY 270-324V DC 3.6 AMP / SHINDENGEN

CASCADE JOYSTICK /CASECADE MICROTECH JOYSTICK Z THETA, INDEX , TURBO

01-W3175F 05E / PCB BOARD, 84-W8175F02B / MOTOROLA

7XE0-050E () / WATLOW AOV, LO-40203500-9919A,7XE0-050E / HIGH YIELD TECH

SERV.470.07411 / CHERRY COMPACT KEYBOARD / ASML

810-010473-009 / PCB, RF INTERFACE, FLEX45 / LAM RESEARCH

0040-42291 / MANIFOLD, LINER, HART 300MM / APPLIED MATERIALS AMAT

5044-000158-11 (LOT OF 6) / PCB IF IL NUMBER 01 TOB1 076 / TOKYO ELECTRON TEL

857-083115-001 / DR ROCKER VALVE B PM KIT 427878 / VAT

3161151 / OPERATOR PANEL BACKPLANE ASSY / BTU ENGINEERING - BRUCE

800-1773A/ ACCELNET SERVO DRIVE AMAT PN 0190-43437 /COPLEY

3161150 / OPERATOR PANEL BACKPLANE ASSY / BTU ENGINEERING BRUCE

678643 / PCB, LIFT CONTROL / APPLIED MATERIALS AMAT

60559 / CKA, SYSTEM BUS MONITOR / ELECTRO SCIENTIFIC INDUSTRIES

MFA090HA5NSC/SERVO MOTOR ASSEMBLY/PANASONIC

102534-000 / PCB BD, BUS CONTROLLER, 102533-000 / MICRO CONTROL COMPANY

020188/EXHAUST FAN CLE2L2 ASSY,PWR SPL RACK 115VAC .48/.50A 50/60HZ /COMAIR ROTR

PME-111BAAA () /SOLENOID VALVE BLOCK W/ 912B-PM-111BA/ADVANCED PNEUMATIC

1517200 / CB, ASSY LEAD SCREW 170 / AXCELIS EATON

2-39-64024 / ARM 200MM WAFER SK-2000 / DNS DAI NIPPON SCREEN

7-39-34039 / SEQUENCER MEMORY CASSETTE, A3NMCA24R / DNS DAI NIPPON SCREEN

91-01765A / COLLAR WIDER, 200MM, SNNF TIGHT FIT, 089-1004 / WEST COAST QUARTZ

0020-24821 / PLATE RIGHT HAND 300MM / APPLIED MATERIALS AMAT

0020-20658 / SOCKET RETAINER 8 INCH DEGAS / APPLIED MATERIALS AMAT

3M10-356825-13 / RING, SHIELD OBGP A... / TOKYO ELECTRON TEL

3870-0 / VALVE TURBO ISOLATION VALVE / MKS

0020-31463 / CARRIER,COMPLIANT, EXT CATHODE / APPLIED MATERIALS AMAT

715-140153-003 / 853-210621-308, ASSY RING CPLG LVLG ESC 8 SEMI / LAM RESEARCH

0100-AE018 / PBS SYSTEM MOTHER BOARD / APPLIED MATERIALS AMAT

2-F2-D2863 / SPINCHUCK 150MM,200MM DIA WAFER / DNS DAI NIPPON

KV8-5-122 SS-4CPA2-50 ASSY / PNEUMATIC VALVE, POPPET CHEC / KAY PNEUMATICS

3156023-000F / AMPLIFIER, MODEL-STQD800-C2-MC2XPVDF / VERTEQ

250C-1-D/ PRESSURE FLOW CONTROLLER TYPE 250, 00-671311-00/ MKS

99-46670-01 / HARNESS ASSY 99-46670-01 N 99-46779-01 / SVG

70050505 / ASSY, CABLE, AMP CNTRL PWR / BROOKS AUTOMATION

0020-31737 / INSULATING FLANGE, TAPERED, ESC, TSB / APPLIED MATERIALS AMAT

0240-76382 / KIT, STANDARD CAL TOOLS, CENTURA / APPLIED MATERIALS AMAT

MPAL-VI 569926 / SOLONOID VALVE ISLAND K302 CABLE VMPAL-KM-V-SD25-IP67-5 /FESTO

FBPCB-0245 / HARD DRIVE, DICER (DFD-651) / DISCO

0010-17454 / ASSEMBLY SOURCE HEATER / APPLIED MATERIALS AMAT

0021-26655 / WALL,SLIDE UP,MEGASONIC,FM 4910,200M / APPLIED MATERIALS AMAT

200-0029S / VPM 4114-01 VISION PROCESSOR / COGNEX

369 428-06 / MODEL: AKLIDA48, SENSOR HEAD, 30V / HEIDENHAIN

424953-9002-000 / ROTATE WHEEL FOR ZEISS ASSY / ZEISS

714-801029-003 / BRKT, MTG FL SNSR, BHD MTG / LAM RESEARCH CORPORATION

ZC872460P / THERMO CHUCK 8 IN THERMAL INDUCING PLATFORM / TEMPTRONIC CORP

2100-0251-01 / MI-O CARD / WINSYSTEMS

1505500 / PCB, SHOWER, ELECTRON / EATON

853-016923-003 / 9945 CMG 9C22 SHIELDED, CABLE / LAM RESEARCH CORPORATION

71330G / 100 SERIES .32HP 264LB TORQUE RATIO 30 W/ WENCH ASSY / BOSTON GEAR

723081 / PCB ASSY WS ARRAY BOARD (8MHZ) / ASM AMERICA INC

AKM24F-ENM2C-00 /SERVO MOTOR 3-PH 5.5:1 RATIO 023PLX0055-XX-2312/ DANAHER MOTION

622A11TAE / BARATRON 10 TORR PRESSURE TRANSDUCER / MKS

SMVE 2420032 / MESA SERVO AMPLIFIER 60-250 VDC / MESA GMBH

2-F3-38335 / CERAMIC END EFFECTOR 60A 6 INCH / DNS DAI NIPPON SCREEN

10017773 / TRANSISTOR-SERVO CONTROLLER HA-320-2-S6 / HARMONIC DRIVE SYSTEMS

165200-001 / ANALOG INTERFACE BOARD 604129-07 CONFIGURED / SVG

799012003 / CABLE, CALDIAG, LDBRD, DEFT / SCHLUMBERGER

64-116835-A400 / GEAR MOTOR / NEMATRUE

0021-02983 / SHIELD,INNER,TXZ / APPLIED MATERIALS AMAT

917-0110 / CRYOPUMP REGENERATION KIT MANUAL / EBARA

0020-31683 / RING, TOP, 200MM, XTAL TIER IV / APPLIED MATERIALS AMAT

0021-09708 / INSULATOR, GDP, TRENCH-NARROW GAP / APPLIED MATERIALS AMAT

0100-00024 / W PWB, KEYBOARD INTERFACE / APPLIED MATERIALS AMAT 8330

BR-3-42116-1 / PARKER BACK PRESSURE REG. 0-60 1 INCH NPT  IN PACKAGE

0100-35066 / CHAMBER PNEUMATIC INTERCONNECT BD /APPLIED MATERIALS AMAT

161-546-350 / BALL VALVE, 4-IN, EPDM, TYPE 546, PVC-U, PN16 / GEORG FISCHER

0010-02170 / WRIST ASSY,LEFT,HPROBOT / APPLIED MATERIALS AMAT

555013-000055 / SERVO MOTOR SGMP-01A312B / MIRAE / MIRAE CORPORATION

0020-83950 / EPG3 APERTURE (VIT), FRONT CARBOGRAF 500 / APPLIED MATERIALS AMAT

CN3402K-R / POWER SUPPLY, RS 232-C, RELAY, 250V, 48-62HZ, 382596105 / OMEGA

722B11TCD2FA / BARATRON PRESSURE TRANDUCER CAPACITANCE MANOMETER 10 TORR / MKS

990-004765-011 / DIGITAL FLOW CONTROL MODULE / PNEUTRONICS

IDS-3112R-60XGA1E / MONITOR, OPEN FRAME / ADVANTECH

A89-004-01 / PCB OPTICAL SENSOR NO WIRE CONNECTOR WITH EXCHANGE / GASONICS

ER-VW / ULTRA THIN, STATIC REMOVAL IONIZER MAIN IT SPOT TYPE / PANASONIC

0018-BLF / CU BLT / METAL FLEX WELDED BELLOWS, INC

0190-02689 / PI/O, OHT HOKUYO DMS-HB1-Z09, E84 VARIAB / APPLIED MATERIALS AMAT

XCA-00-20-195-70-FL251301 W ASSY / CKD CYL. ASSEMB. EHS-2001-195 NL534540 / CKD

16-900923-00 / DIFFUSER,HEMI,SINGLE ROW,RF SOURCE,G AND E / LAM RESEARCH

88-21950-360/ ANAFAZE 4CLS TERMINAL BLOCK BOARD / WATLOW

TPS72012YZUR (000) / ICCTRLMGT TI TPS72012YZUR 5DSBGA LDO1.2V 350MA

A4331-9015TG / SK200 5PHASE STEP MOTOR W-AE-D0002, 2-39-4985 / VEXTA ORIENTAL

715-067214-002 /VAT, ROCKER, CU / LAM RESEARCH CORP

0020-27313 / PEDESTAL, SHIELD, 8 INCH / APPLIED MATERIALS AMAT

HDD15-5-A / CONDOR POWER SUPPLY, 15VDC,230-240V,50-60HZ,083-58035 / CONDOR

B2214-S25 /GEMS SENSOR 24VDC, 7W /GEMS SENSORS  CONTROLS

E17002890 / MTG PLATE / VARIAN

4S015-227/NK8601AP.C.B.(EQUIVALENTTO4S015-258AN)/NIKON/TDRA/XILINX

601-17175 / LASER, PILOT (AB LASERS) (10000-243) / AB LASERS, INC

DT962J (WITH DISPLAY) /NOAH PRECISION, PCB DISPLAY BOARD WITH DISPLAY CONTROL SC

25-06711-01 /CONTROLLER HANDHELD SCANNER CABLE ASSEMBLY POWER SUPPLY 00049/ SCP

0041-12638 / BRACKET LID WATER BULKHEAD 30MM TIN / APPLIED MATERIALS AMAT

001-05258-001 / ESP PEEK RING AEP BTVY / ESP SPARES, INC.

0021-04269 / G.D.P., P 13 HOLE (STD P/N 0020-31488) / APPLIED MATERIALS AMAT

A200 / CPU CARD ACORN TECHNOLOGIES VIDEO / AMRAY

90792-2 / PCB DIGITAL ELECT. OPTIC CNTRL 800-1201D W AUTO FOCUS STIG PC5 / AMRAY

671880 / PCB BD 00-671880-00 / VARIAN

2800293 / MICROSTEP TRANSLTR MID014-1002 / LAM RESEARCH

E11287183 / CONDUIT ASSY, FIBER OPTIC, REMOTE CHIL / VARIAN

0020-99640 / MIDDLE LINER, LEAP II BEAMSTOP / APPLIED MATERIALS AMAT

E3610A / HP DUAL RANGE POWER SUPPLY - AGILENT / AGILENT TECHNOLOGIES, INC

 E3610A / HP DUAL RANGE POWER SUPPLY - AGILENT / AGILENT TECHNOLOGIES, INC

164364-001 / SHIELD, REVC / FSI

1D86-022038-13 / CABLE PC BTM NOISE FILTER RESISTANCE THERMOMETER TEL / HAYASHI

540241015 / REGULATOR, 1-1/2 UHP PVDF/PTFE V82 W/SPG / FRANK

520009 / S08-V2-R100HF-ER-G3-XX-14 VALVE GAUGE I/O / CARTEN

NVT-910-00145 / GAS STICK W/AZ1315S-2PW-FV8-FV8, AP3800S-MV8-MV8-00, 4277172

C200H-CPU21-E / SYSMAC C200HS-CPU21-E PROGRAMMABLE CONTROLLER CPU MODULE /