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。

90-00334A / WAND CERAMIC 12'' / APPLIED CERAMICS

608593 / MODEL 688CE44 / THOMAS PUMPS

16-308971-00 / ANODE HCM TRIM NO-RUB TWAS PVD / NOVELLUS

782050 SHORT PATH THERMAL DESORPTION SAMPLING OVEN SO-1 SCIENTIFIC INSTRUMENT

409522 / ASSY, WAVEGUIDE ES3 EATON FUSION, MACHINE # RDS320042 / AXCELIS

381 / TEL LOW TEMPERATURE HOT PLATE ASSY, CLEAN TRACK 381 / TOKYO ELECTRON

0041-30673 / ESC LINER, CENTURA CENTRIS DPS2 / APPLIED MATERIAL AMAT

1B80-002821-12 / PCB SD2 ADD ON BOARD 96-24 WITH MEIDEN BOARD / TOKYO ELECTRON

0090-A3600A / SYNETICS POWER CONTROL MODULE AC/DC / APPLIED MATERIAL AMAT

STAGE CONTROLLER  / STAGE CONTROLLER  VEECO VX330 / DIGITAL INSTRUMENTS

CEDB-0011 / INDEXER BOARD ID - A/B/C 2-VC-15252 / DNS DAI NIPPON SCREEN

OVDS-7010 / VACUUM DIAGNOSTIC SYSTEM / LUCAS

5517D-C16 / HP AGILENT LASER SEE WATT OUTPUT / AGILENT TECHNOLOGIES, INC

0040-75446 / WRIST ASSY, ROBOT / APPLIED MATERIALS AMAT

09040-PE44-AB01 / EDWARDS B90002041 BASEMENT GATE VALVE ISO100 / VAT

M-120 / FURNACE TEMPERATURE CONTROLLER PCB TEMP MONITOR 120 / TOKYO ELECTRON

2232-2340/0000 COHU CAMERA CCD W/ 12PIN FEMALE ROD AUX 3 SWITCH WITH EXCHANGE

1100310 / ARC POWER SUPPLY / EATON

WX-43 / WX-43 SCANNER/MAPPER / HAMA SENSORS

02-00012-00 / PNEUMATICS PANEL ASSEMBLY FOR C1 / NOVELLUS SYSTEMS INC

CERD-0012 D1770-2 /MOTOR DRIVER 60A SCRUBBER / DNS DAI NIPPON SCREEN

3D05-350027-11 / INSULATOR RING,FG8 / TOKYO ELECTRON TEL

2168-000007-11 / HASETEC THYRISTOR CONTROL IT CU162U4Z3FA TEL / TOKYO ELECTRON

527-37715-03 / PCB DC SPIN MOTOR DRIVE BRUSHLESS / EXCELTEQ INC

H200M / TRANSPECTOR LEYBOLD / INFICON

0040-51718 / DEPOSITION RING STD TAN SHORT A101 / APPLIED MATERIALS AMAT

6500-T2-F03-D12-K-P1-U1 / INTEGRATED FLOW CONTROLLER / ENTEGRIS

224700 / STRASBAUGH OBSOLETE CHUCK, VACUUM SUPPLY / STRASBAUGH

3Z05-200071-12 / PLATE PLASMA SHIELD / TOKYO ELECTRON TEL

620T0065-03 / PADDLE END EFFECTOR RLR EDGE G WDG CRMC 300MM / ASM

12G 60 600B9 / ASSY, ACTUATOR, SHIMIZU KIDEN / INTELLIGENT ACTUATOR

0240-22397 / 6" SST/ MATL 101 PED/CVR RING KIT / APPLIED MATERIALS AMAT

0020-31664 / BAFFLE, PURGE, CHAMBER, BWCD / APPLIED MATERIALS AMAT

E281-000044 / PCB,CPU E2B115-11 CPPC2 BRD, E244-010015-11 / TOKYO ELECTRON TEL

16-353879-00 / SHIELD BARREL TC BRKT IONX AI / LAM RESEARCH CORPORATION

02-347924-00 / ASSY, ELECTRICAL, ILDS DIRECT DIVERT / NOVELLUS

0020-49975 / RING,COVER,17MM PROCESS,WINDOW / APPLIED MATERIALS AMAT

AMVG-3000-RB / AUTOMATIC IMPEDANCE MATCHING IT / ADTEC PLASMA TECHNOLOGY

6315-3001/0000  COHU SOLID STATE CCD CAMERA WITH EXCHANGE / COHU

716-803156-004CU / FOCUS, BR CVR DFC 300MM / LAM RESEARCH CORP.

716-803156-004CU / FOCUS, BR CVR DFC 300MM / LAM RESEARCH CORPORATION

4AB0036 / COMET TRANSLATION Y STOCKER / AKRION

LPC-480PCLeG4-B840-102GF-04G-6-02 / DRIVER INPUT / STEALTH

1052-603-01 / HEATER-SOURCE 3 I-O 220V 219W / ASM AMERICA INC

432007-0000-000 / ROTARY STAGE POL 360 45 CLICK SWITCHABLE AXIO IMAGE / ZEISS

OL40010334 / HI VOLT SERIES 400 CONTROLLER / HITEK POWER

0040-18219 / AMAT LASED 200MM ESC SNNF W/WTM CVD / APPLIED MATERIALS

0010-76000 / ROBOT 4, 5, 6 INCH ASSEMBLY DRIVE P5000 / AMAT

0020-51916 / CATHODE LINER, 300MM DPN / APPLIED MATERIALS AMAT

14-013582 / PCB ,THERMAWAVE 2600 NON-DUV SBC PSC-586 VER:D3 / THERMAWAVE

AA300EX-083, AA300EX-084 / ROBOT KEYTRAN IV ARMS / ULVAC

ML3475A-ASM / SERVO MOTOR / PARKER

600059-06 / PCB, T/C AMPLIFIER / AG ASSOCIATES

BN9-5015-000 / MIRROR, G1 FOR MPA60 / CANON

0010-19026 / STD PVD DEAGAS CHAMBER QUARTZ VIEWPORT LID/ APPLIED MATERIALS AMAT

00070-2000-000-01 / MEGA_F MOTION SYSTEMS TZ CONTROL IT / APPLIED MATERIALS

0200-00175 / AMAT DOME CERAMIC, POLY DPS CHAMBER/ APPLIED MATERIALS

FI20160-2 / SMARTPOWER PWR SUPPLY, 0920-01110, 200-208V 3PH 20A 50-60HZ / ASTEX

E11104150 / CRYO PURGE CONTROLLER, VIISTA VISION / VARIAN

715-001841-001 / LAM HOUSING, GAP ADJUST / LAM RESEARCH CORPORATION

839-443215-502 / ELECTRODE SILICON ASSY L RES SM HO REV C / LAM RESEARCH CORP

1-A02220-95 / BAFFLE ASSY, EC1,SLOTTED / HITACHI

0200-00531-009 / PUMP PLATE, CVD 300MM TXZ / APPLIED MATERIALS AMAT

0021-35163 / REFLECTOR PLATE, CHMBR. BOTTOM / APPLIED MATERIALS AMAT

60560094-01/ PCB, SGRP, GALVO-DRIVER / LUMONICS

XGT300-30-1A-X804 / SLIT-VALVE PRESS 10-6 Pa~atm OPE. PRESSO.45~.6 MPa / SMC

0020-79039 / PLM HOUSING SPINDLE ASSY 300MM IMR / APPLIED MATERIALS AMAT

90-2590 / PCB, GASONICS I-O INTERFACE,  STYLE WITH EXCHANGE / GASONICS

0040-04151 / AMAT BASE, AMPOULE LIFT, LIQ PANEL, TXZ / APPLIED MATERIALS

AXI-IP6-2120 / CONTROLLER JVX 6200 / JVC

2500-1902 / AIR PRODUCTS SCHUMACHER TEOS AMPULE, EMPTY SHOE T713474 RT9409

5001-1015-30-00 / ENDPOINT CONTROLLER MODEL 1015

627A.1TAD----S/XDCR PRESS VAC ISL CV7627A.01TAD 10-100 TORR 1-4VCR-F -15VDC/MKS

0010-05418 / CLEANER FLUID CHAMBER REMOVAL TOOL ASSY / APPLIED MATERIALS

16-348528-00 / PED ASSY, PNL MCA ES C3ALT / NOVELLUS

0090-B0601 / APDU KVR11706 IP RACK UVISION 3HS-18S 3X110 VAC 40AMP / AMAT

799-165832-001/RING SEALING 162 ISO 250 VULCANIZED 706297/LAM RESEARCH CORPORATI

0040-47601 / AC , 300MM ENDURA SL / APPLIED MATERIALS AMAT

3152194-005 / MDX20K LZ MASTER DELTA MAGNETRON DRIVE / ADVANCED ENERGY

S6962 / CONTROLLER 2-AXIS WAFER RESOLVE T 100L / IDC

16-194620-01 / COLLECTOR-EXHAUST REACTION CHAMBER / ASM AMERICA INC

0040-20518 / ADAPTER PVD TRANSPORT / APPLIED MATERIALS AMAT

0100-90353 / PWBA LOGIC, SUPPRESSION / APPLIED MATERIALS AMAT

MDVHX-100B / THROTTLE VALVE, HEATED, VEXTA PH265-02-C32 W/ EXCHANGE / MILLIPORE

E11351930 / FACILITY, WATER TURBO R/S / VARIAN

3006728 / COMPUTER TMS HVM IPC847C COMPL / SIEMENS

42487-00 / 3A14 ACCELERATOR VACUUM CONTROLLER / GENUS INCORPORATED

919-0402S004 / ION PUMP DIODE STYLE / VARIAN

919-0302S004 / NOBLE DIODE ION PUMP / VARIAN

1518150 / PCB ASSY AT4 DATA ACQUISITION / AXCELIS TECHNOLOGIES

OYDK-60-095B-064-065 / ASSEMBLY, PCBS EXT CHEM#02, / TOKYO ELECTRON TEL

601-17060 / M-3 HEAD (10200-090 LASERT / AB LASERS

M2012A / 15V 3/4 HP CVC19 HYDROCARBON OIL / ALCATEL VACUUM PRODUCTS, INC

001-7600-07, 001-1570-97, 001-1984 / MAGNATRAN 5 MTR-5 ROBOT, ARM, PENDANT / BA

859-8140-005 / COTERFORCE RETICLE STAGE AMP MICRASCAN 859-8211-003 / ASML

DS2110-130940-14 / CAP SUS316L / TOKYO ELECTRON TEL

4040345 KVR1658 / UVISION 5 POWER SUPPLY INTERFACE  / APPLIED MATERIALS AMAT

MWD-55LD-01 / AUTOMATCH,13.56 MHZ, 100-220V 50-60HZ, KYOSAN HV-PS4 / ENI

H4-4135 / PRGM. LOGIC CONTROL VEXTRA W/4-2 PHASE DRIVES / ADVANTEST

H4-4137 / PRGM. LOGIC CONTROL VEXTRA / ADVANTEST

0090-06863 / CIOC ECAT ADVANTAGE / APPLIED MATERIAL AMAT

0195-07328 / AC PANEL, CENTURA CENTRIS DPS2 / APPLIED MATERIALS AMAT

EM3506-123-64A / RING LOWER SHEILD 88618-08 / ULVAC TECH

0710100 / PCB VME 101 / VME

E11072750 / ARC FILAMENT CONTROLLER / VARIAN

ARX-X252-SP / ETO, RF GEN 13.56 MHZ WATTMETER PCB ACX-X280/ MKS

PC87927 / OZSYSTEM CONTROLLER CHASSIS ASTEX BACKPLANE ASSEMBLY / MKS

5150CP / TURBO MOLECULAR PUMP / ALCATEL VACUUM PRODUCTS, INC

61-344687-00 / COMPUTER EC1 QNX 4/6 NEXUS MODULE / NOVELLUS SYSTEMS

600W ETC04 PWM-15M / TURBO-MOLECULAR PUMP CONTROLLER MODEL ET600WS / EBARA

2587440-01 / ASSY, SENSING BOAT ROTATION II / ASM AMERICA INC

015-0920-01 / BROOKS PCB RUDY, 1 VACUUM SENSOR, WITH EXCHANGE / IRVINE OPTICAL

GEPH-001X7 / DNS SK-200 POWER CONTROL IT WITH EXCHANGE / DAI NIPPON

IRAI Z-AXIS ROBOT / ASSY HG-KR23 TEL PROZ / TOKYO ELECTRON TEL

11180307-07360E / SPINDLE ASSY FOR KLA ECD SEM / KLA TENCOR

840-0022-422 / NANOSCOPE STAGE  JR CONTROLLER / DIGITAL INSTRUMENTS

COMPUTER NSX-SERIES WHS / COMPUTER PC FOR NSX-SERIES / AUGUST TECHNOLOGY

ES1D10-302586-12 / COVER BELLOWS / TOKYO ELECTRON TEL ES1D10-302586-12

270 ST / SPIN RINSE DRYER SEMITOOL SR 3615-4664 FGS1990 / RHETECH INC

10145595 / SHAFT SOLID SUSCEPTOR SUPPORT QUARTZ XYA-589528-01 / XYCARB CERAMICS

379093 / PCB ASSY TIMING GENERATOR AIT2, SLOT 10, 0053946-000 W/EXCHANGE / KLA

XU-CM7400 / YASKAWA CONTROLLER FOR TRANSFER ROBOT / YASKAWA

0010-01929 / AMAT ASSY PVD RF MATCH, BIASED ELECTRODE BESC / APPLIED MATERIALS

CP / CP CHILL PLATE ASSY SK2000 / DNS DAI NIPPON SCREEN

0195-14769 / PCB, 0195-11146, GENREAL MICRO SYSTEMS V295,PWB 90-2248-030 / AMAT

4090U / POWER SUPPLY MODULE PSME 115VAC 15A / ELECTROGLAS

ES1D05-300061-13 / QUARTZ RING,INSULATOR A7-2 / TOKYO ELECTRON TEL

AS305619-04 / ASSY IQ PUMP I-FACE IT XEF2 PIP / STS

CT5085-412118-12 / FORK, ASSY CHA / TOKYO ELECTRON TEL

AFF-600 / FLAT FINDER - AUTO - UP-DOWN - MACTRONIX / MACTRONIX MACTRONICS

XGT310-30-1A-X446 / INTERGRA VALVE LOAD LOCK SMC / AXCELIS