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。

223BD-00010-ABS-SPCAL-SPFTG / BARATRON,10 TORR / MKS

386642 / PCB, HV-SMPS CONTROLLER INTERFACE BOARD / FUSION SEMICONDUCTOR SYSTEMS

127AA-00001B / BARATRON PRESSURE TRANSDUCER 1 TORR TYPE 127 / MKS

141A-23369 / VACUUM SWITCH / MKS

409244-00 / BRUSHLESS SERVOMOTOR / KOLLMORGEN

SC2013PTE / SAMPLE C/ SPECTRON, INC

0021-29195 / EXTERNAL MEMBRANE CLAMP 300MM TITAN / APPLIED MATERIALS AMAT

140-101-00000 / MODEL 140XIIII INDUSTRIAL THERMAL LABEL PRINTER / ZEBRA

CT1380-104551-11 / CRA Z DRIVER MSD5A1A1XX (TEL MK VII) / TOKYO ELECTRON TEL

212200R / CARBON CARTRIDGE ASSEMBLY WITH 3MM AMMOSORB CARBON / TIGER-VAC

0200-09559 / COVER 200MM CERAMIC (6 HOLES .12DM S / APPLIED MATERIALS AMAT

1066-199-01 / ENCLOSURE- IN FLOOR BOT SERVICE / ASM AMERICA INC

B112099G009 / CONTROLLER CABLE 94E18 GW / CTI CRYOGENICS

02-8146121-03 / COVER, TOP / NOVELLUS

0020-10119 / PLATE PERF 100-150M / APPLIED MATERIALS AMAT

7-01-097 (LOT OF 11) / PCB BOARD, OUTPUT, 7-01-097 / TEMPRESS - GENERAL SIGNAL

2805-104071 / ASSY,DRAIN VALVE LOAD 2805-10471 / NOVELLUS SYSTEMS INC

2800392 / MODULE-A DUAL DRIVER / LAM RESEARCH CORPORATION

PCA-6178 / SINGLE COMPUTER BOARD PENTIUM 111 / ADVANTECH

1D10-305114-11 / RING SCREW(DRMDM SCHAMBER BASE / TOKYO ELECTRON AMERICA INC

PM2974A-3-5 / POWER SUPPLY / PIONEER MAGNETICS

1D10-406499-11 () / WINDOW DEPO SAF 0.5 (DRM DM S/ TOKYO ELECTRON TEL

9701-1059-02A / PCB, LOAD PORT / ASYST TECHNOLOGIES

345520 / PCB MOTHERBOARD PARALLEL BUS / LASER IDENTIFICATION SYSTEMS INC

70312543100 / (S)MOD. RS232 REMOTE BO / APPLIED MATERIALS AMAT

83367-001-B / MEMORY MODULE / VARIAN

12-8800-010/VEXTA PX243G01 ASSY BR LIFT PREPROD 810-04107 2-PHASE 0.1STEP/ONTRAK

626A02TBE / BARATRON GAUGE, 2 TORR, TYPE 626 / MKS

810-004115-002 / ASSY PCB ES MEMORY CARD 8346-701-1263/ LAM RESEARCH CORPORATION

8201-0142 / PCB I / O BOARD / NANOMETRICS

4S013-360 / MIS-PACONX4 P.C.B. / NIKON

12741 / BLOCK CATHODE WATER BLOCK MANIF / MCDOWELL  COMPANY

CMD-034 / CHEMICAL CIRCULATOR / IWAKI

M/C-00011 / CONTROL  - ORBIS TRA

0140-09528 / HARNESS ASSY, CHAMBER EXHAUST, EPI / APPLIED MATERIALS AMAT

950-737-00 / PCB VS CONTROL ED / TERADYNE

0020-25874 / SHIELD COLLIMATOR LOWER 101 6 13 SRC / AMAT

153F-16205 / TYPE 153 CONTROL VALVE / MKS

ZTE562-35920B / TRANSFORMER, 220-220V, 50-60HZ / URAKAWA TRANSFORMERS

0010-00146 / MKS BARATRON RANGE MULTIPLIER 170M-6C / APPLIED MATERIALS

0200-06508 / HSR, SHIELD TOP CERAMIC,300MM TXZ / AMAT

RM1F005H21(DM S / FILTER, 0.5UM, 10INCH / PALL

W-5V3V5V3V2B /POWER SUPPLY MODULE ASSY, MT400-5, SYA400S 3R3 /ADVANTEST

0140-36453 / HARNESS ASSY, DCS CHAMBER / APPLIED MATERIALS AMAT

122AA-00010BB / (R) PRESS. XDUCER TYPE 122A / MKS

0140-05870 / HARNESS ASSY, PRODUCER E, RF GENERATOR CABLE / APPLIED MATERIALS AM

SGM-01L314P /YASKAWA AC SERVO MOTOR SGM-01L314P /YASKAWA ELECTRIC

E17581350 / SUPPORT PLATE,ANGLE CONTROL LINER / APPLIED MATERIALS AMAT

577009-2180-000 /77 SERIES LGK 7877 ML01 MULTI-BEAM 500MW / LASOS LASERTECHNIK

BE34K-NPSN / PARKER BRUSHLES SERVO MOTOR, 14082N0012 / PARKER

603-2867-01 / S SPARC STATION 5 SERVER / S MICROSYSTEMS

CP*OEM750X-10413 / DRIVE INDEXER / PARKER HANNIFIN CO

SE6400012 PD1 - EV640 /PIEZO DRIVER - HP AL6-2-01050900 - N-002-07/ EVG-EV GROUP

0100-90851 / PRE ACCEL H.V. M/B (XR/S TD) 9500 IMPLANT / APPLIED MATERIALS AMAT

15-278968-00(0) / INJECTOR.TUBE,STAR INSERT,1.375L / LAM RESEARCH

0020-30427 / RING, CLAMP, 8 , EXT CATH, DC,4.4MM, .22 / APPLIED MATERIALS AMAT

0021-70063 / PIVOT, 300MM REV 3 SLIT VALVE / APPLIED MATERIALS AMAT

BM17756L01 G4 / PCB SERVO AMP LOW POWER REV G4 / PRI

11362100 / LASER MOT ASSEMBLY / ALLEN BRADLEY

ICM-BB-30 / PCB DIGITAL IO WATCHDOG LED BEAR BONES 1F5174 / DIVELBISS

DTRY-ELB02 / STATIC ELECTRICITY ELIMINATOR IONIZING IT / KOGANEI

232657-004 /VICOR MINI MEGAPAC MODULAR POWER SUPPLY 115-230VAC 25A-15A/VICOR

H20-SB13-0615 (2DM S / TRAY-SPRING  12-1 / ENTEGRIS

CMHT0102E / MANOMETER 0-1TORR 0-10 VDC / CELERITY

9699504S011 / TV-250 CONTROLLER, 70411535000 / VARIAN

DM S9699504S011 / TV-250 CONTROLLER, 70411535000 / VARIAN

GF120C-899361 /E23000581 GF120CXXC MFC NF3 2000SCCM N2-35PSIG /BROOKS INSTRUMENT

740-607105-00 / MAGNETIC WIEN CURRENT, CURRENT SUPPLY WIEN, LENS CURRENT / KLA

HA-FE23D / AC SERVO MOTOR 80B HORIZONTAL Y AXIS DRIVE WITH EXCHANGE / MITSUBISHI

ESVP-1502-NW / ANGLE VALVE PNEUMATIC VACUUM / NOR-CAL

921203-1 / ANGLE VALVE PNEUMATIC VACUUM / NOR-CAL

SFA4080 () / BELLOWS / SHIBAURA ELETEC CORPORATION

649-250158-001 / COMET CAPACITOR VACUUM VARIABLE 10-1000PF 5KV / LAM

0020-24878 / SIDE RECEIVER MIT / APPLIED MATERIALS AMAT

0040-38282 / OUTER SHIELD, CHAMBER EXHAUST, METAL ALD 300MM / AMAT

28001BFM /LAMBDA POWER SUPPLY 4 CHANNEL 284BE1A-1715 120V 15.4A KLA 5200 / KLA

HB-25102AF-A / POWER SUPPLY UV LIGHT SOURCE CURING DNS / USHIO

0040-49302 / MOTION SYSTEMS 73058-001 / APPLIED MATERIALS AMAT

4R0S047028 / SEAL RING, D5CS04702 TPU131112P / TOKYO ELECTRON

X20CP0291 / COMPACT CPU 5 MS MODULE, AC100579-000 / BR AUTOMATION

0123-5247 / PCB ASSY FOR NITTO / CYBEQ SYSTEMS

SW-CB1818-8H / SONICWISE ULTRA SONIC BATH CLEANER INTERMATIC DIAL / SONICWISE

E15005872 / QUAD III SWITCH BOARD UPGRADE FOR PCB E11292270 / VARIAN

DP-22 () /SX DP-22 PRESSURE SWITCH /SX

0020-26455 / CLAMP RING 6 SMF SS 3.4MM / APPLIED MATERIALS AMAT

799000320 / PCB, PWM HCDPS, DEFT, STPWMHC499000320 / SCHLUMBERGER

716-011969-330 / RING, QTZ, COUPLING, 300MM / LAM

1181-000537-15 / TEL-ALPHA 8S BOARD MC-31106A / TOKYO ELECTRON TEL

17138590 / INA 55846 UPD TO 17227170 SUPPORT SHIELD / AXCELIS TECHNOLOGIES

DSGFT-181002-4 / PIPING,TEASAT LINE-OUTSIDE2(ASDT0DM S/ TOKYO ELECTRON TEL

DSGFT-181003-4 /PIPING,TEASAT LINE-OUTSIDE2(ASDT0DM S / TOKYO ELECTRON TEL

MDP 102-1 / POWER MODULE MPD, 1 OR 3X115V, 1X230V, 7.0A, 45-65HZ / SIGMATEK

2ARF3605 / METAL PLATE WITH STANDOFFS / SCREEN SEMICONDUCTOR SOLUTIONS CO

02-451607-00 / NOVELLUS ASSY, AC DISCONNECT SWITCH , EFEM (PLATFORM) / LAM

022-00066 / PCB A-D TEMP CONTROL / SEMIFAB

PB1-A (TYPE TGN 3 PP) /SANDPIPER PB1-A TYPE TGN 3 PP DOUBLEDIAPHRAGM PUMP/WARREN

9760629 / 7601SS SOLID STATE SCANNER 3 CHANNEL O.T. / BRUCE TECHNOLOGIES

09170088 / TEMPERATURE MONITOR / EBARA

DS2110-223577-12 /PEDESTAL,TABLE,QUARTZ,INCONEL600 / TOKYO ELECTRON TEL

BHM6180M-G / AC MAGNETIC BRAKE SPEED CONTROL MOTOR W/ GEAR HEAD / ORIENTAL MOTOR

3385-013618-11 / PC CON PARTS EPC NON PCI.P-12XL LD WIN7 / TOKYO ELECTRON

C316AF-0013060L-2RHOVAMME/MFC 3161 IT N2 ,HGHFLO(NON-MULTIFLO),60SLM/CELERITY

4660573-001 / BTBAS FLEX ELBOW, 112607433 / ASM AMERICA INC

879-834-01 / PCB LANALOG DATA BUFFER MDSA / TERADYNE

950-785-00 / PCB TW785 REV A / TERADYNE

BG9-3730 / CANON RC CPU PCB CPU-86 BH8-0675-03 BG9-3730 / CANON

11-0960-90 /9 FAN PLUG-IN IT / PAPST

NSAVH-12DC-1 / VALVE DRIV. PRESS 0.4~0.45/MPA180 /AMBI TEMP80 / ENTEGRIS

422-0110 / PNEUMATIC RECTANGULAR SLIT VALVE 1"X10" / HIGH VACUUM APPARATUS

1303232103 / ELECTRIC MOTOR FOR HEAT EXCHANGER 0010-09476/ FRANKLIN ELECTRIC

CPCI-6910AM-M1G / 6U DUAL CORE XEON CPCI IVERSAL SBC / ADLINK TECH. INC

0021-86050 / INTERNAL MEMBRANE CLAMP,300MM TITAN / APPLIED MATERIALS AMAT

02-294004-00 / ASSY,INSERT,STACKED,11.54NC,11.47FL,.240(SABRE NON 3D) / NOVELLUS

211-0111-120 / POWERFORMER OUTDOOR 3R U/L PH. 1 KVA 5 / JEFFERSON ELECTRIC

103809-005 / STEPPER MOTOR CONTROL / MICRO CONTROL COMPANY

42055-00 / OCTAL RS232 TO FIBER OPTIC INTERFACE PCB / GENUS

0140-00130 / Z-AXIS SUPERFLEX CABLE ASSY / APPLIED MATERIALS AMAT

2-39-67880 / ARM CERAMIC 200MM SK-2000 IFB / DNS DAI NIPPON SCREEN

18-020285 / HER, BULB ASSEMBLY, UV, P34 / THERMAWAVE

0190-12138 / PV2 SERVO DRIVER FOR 400W MOTOR DNET / APPLIED MATERIALS AMAT

22-189663-00 / FLTR,POU-3-HSV1,W/RESTRICTOR(C3 VECTOR) / NOVELLUS

PCB-00471000-00 / PCB, DASA DIGITAL, PRD-0047000E-00, SERVOTRONIX / KOLLMORGEN

B800155 / 3850045A BOARD, PCB ASSY, EPT / ANORAD

02-109467-00 / ASSY,INTLK,HDP SIOC SPEED 0 INTERLOCK / NOVELLUS SYSTEM INC

2S700-323-2, 2S020-020-5 / S-AF(H) PCB / NIKON

NT3000 / EXPLOSION PROOF TRANSDUCER / FLOWSERVE PUMPS

QCDGPF82F / QUICKCHANGE PF80 10" CHEMICAL FILTER 0.2UM 1/2" FLARETEK/ MYKROLIS

DS2110-339781-11 / HEATER,PANEL (8111) / TOKYO ELECTRON TEL

GBD8-C0-447-00000000 /GEO BRICK LV SERVO-STEPPER AMPLIFIER AND CONTROLLER/DELTA

60211-PAA-C5 / PCB BOARD, 60211-102-01C / KEITHLEY

BOWLARCB / BOWL ASSEMBLEY, ARC 80B / CLEANPART SET