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。

PW1617/31 / X-RAY WINDOW (PW1617/DM S / PHILLIPS

1993234-502 / PCB BACKPLANE TEST BOARD REV E / DELTA

WTM10101 / BRACKETS, HARDWARE ONLY FOR SUPPORT PLATFORM ASSEMBLY / SATHORN

K66499 / ELECTRICITY TOWER, 200V CAPACITY B SURFACE / TOKYO ELECTRON TEL

INR-244-418 / DPR300-00142 CONTROLLER POWER SUPPLY SK200 / DNS DAI NIPPON SCREEN

03-153031-00 /CABLE ASSY /NOVELLUS

PM200-3 /MOTOR PROCON PUMP, EELQ-8T 0.2KW 1410-1710RMIN 200V 50-60HZ/NIPPON OIL

VFC209A-7W /RING COMPRESSOR, 3 PHASE, 2 POLES /FUJI ELECTRIC CO LTD

5003ANDCB5 / H V POWER SUPPLY, 28VDC, 0 TO -2KV / CPS HIGH VOLTAGE SUPPLIES

300004-02 / BRASS VALVE G625PC2R / CARTEN

346023-8005-000 / MICRO SCOPE JOYSTICK / ZEISS

CQ2BS63-50 / SMC CYLINDER / SMC

DEAANUPS201-00 / SUPER HIGH PRESSURE MERCURY LAMP (UV CURING) / MATSUSHITA

P22NXRB-LDF-NS-00 / ASSY 1.8 STEP MOTOR B POLAR SERIES 1500 RPM / POWERMAX

8612A / KBWT-112 DC MOTOR SPEED CONTROL 12.0 ADC / KB ELECTRONICS

0022-04331 / BRACKET, MFC ROTATION/LINER PURGE, / APPLIED MATERIALS AMAT

BBMXC-1 / PCB BOARD IGD067 / HITACHI

9045 / ENODE,POWER SUPPLY / PARTICLE MEASURING SYSTEMS

102948-001 / PCB QSRS III COMMICATION BOARD / MICRO CONTROL COMPANY

8043083G125 / FLEXLINE, HELIUM 0.75 INCH 10 FT / CTI

870500 / MDA TOXIC GAS DETECTOR, TLD-1 SOFTWARE VS1.09 / ZELLWEGER ANALYTICS

MQMA022S2G /AC SERVO ROTATION MOTOR CFNE0113587 / PANASONIC

KS-8800107 (STACK of 4DM S / 8X14MM BGA, 12X19 DICING TRAY 140 DEG C TEMP / KOSTAT

0020-26823 / UPPER SHIELD 6 HTHU DEPO LOW KNEE / APPLIED MATERIALS AMAT

2800816 / PCB-AMN CONTROL / LAM RESEARCH

715-249092-001 / PL, R, CONFINEMENT, 150MM ESC / LAM

1328586 / CLEANROOM TECH. AUSTRIA, CONTROL , AIR BOY HR1 2, FAULT / CLEAN CO.

0020-10727 / COVER TOP 4 IN 5IN 6IN TEOS / APPLIED MATERIALS AMAT

796-098654-003 / RING LKGVAT V SER 65 DN100 / LAM RESEARCH CORPORATION

17-260362-00 / SHIELD, BARREL, GRIT BLAST, PVD 300MM / NOVELLUS

1021-12-151 / WEST COAST QUARTZ RING, 8" SPUTTER CERAMIC / WEST COAST QUARTZ

0190-26809/ YAMATAKE SENSING CONTROL LOG-1222 REV 002 RF FILTER / AMAT

2-F3-D0417 /TUBE, PR NOZZLE SK-200 (2-F4-D0658, JOINT PR NOZZLE ATTACHED/ SCREEN

155401042 / PRESS REDUCTION VALVE D50 PTFE / GEORG FISCHER

0200-09083 / SHIELD,QUARTZ,150MM,AMT 0200-09083 / APPLIED MATERIALS AMAT

LDFN03UFD7E51 () / FILTER HOT IPA FILTER 0.05 / PALL

0200-07582 / DEP RING / APPLIED MATERIALS AMAT

678886 / HOSE METAL FLEX 7800 / APPLIED MATERIALS AMAT

3486-OCV / PCB MOTHERBOARD / SVG

3400-01109 / HOSE 20' FLEX LINE CRYO HE 3/4" DIA MALE, CTI 8081608 / AMAT

108833 /MOTOR ELECTROCRAFT 242-027-0142 IEC 341 S-1 DUTY 4.5A 45VDC /SCHLUMBERGE

FUFL-915-6.35 (LOT OF DM S / NIKON PRECISION INCFUFL / FUJIKIN

0021-83785 / ESIP WNX TI SHUTTER DISK CLEANED CLEAN PARTS / APPLIED MATERIALS

0020-33810 / COVER, GAS FEED ASSY, DSP A3 / APPLIED MATERIALS AMAT

G3PE-225B-DC12-24() / RELAY, SOLID STATE HEATER CONTROL / OMRON

E0R05-2661 / PCB OSCILLATOR ST286 / ZMISC

02-54545 / BLOCKER PLATE

2-F3-92003() / ARM LOWER 150MM DIAMETER 80A 80B / DNS DAI NIPPON SCREEN

0020-30198 / TUBE, EXTERNAL, TAPERED, EXT CATHODE / APPLIED MATERIALS AMAT

2-F3-92002() / ARM UPPER 150MM DIA. 80A 80B / DNS DAI NIPPON SCREEN

0240-20073 / KIT ELEC PER PVD CHAMBER () / APPLIED MATERIALS AMAT

15-00098-00 / PLATE, RF DISTRIBUTION, TOP / NOVELLUS

D80-FM2-P060-A / DISPLAY DUAL CHANNEL / ENTEGRIS

2013009-00 () / SEZ223 EXHAUST PLATE STIFFENER / LAM RESEARCH

PM 2973A-2-5 / ASML POWER SUPPLY, 5@70, /-15@6 / PIONEER MAGNETICS

000-0107-001 / PCB, HINE INDEX CONTROL, W/000-0108-001 / ASYST TECHNOLOGY

3M10-252426-13 / RING, WEIGHT OBGP B / TOKYO ELECTRON TEL

UG10-001193-11 / SHIELD CHAMBER I / TEL EPION INC

UG10-001191-11 / SHIELD CHAMBER G / TEL EPION INC

UG10-001196-11 / SHIELD CHAMBER L / TEL EPION INC

UG10-001194-11 / SHIELD CHAMBER J / TEL EPION INC

UG10-001200-11 / SHIELD CHAMBER P / TEL EPION INC

UG10-001190-11 / SHIELD CHAMBER F / TEL EPION INC

UG10-001189-11 / SHIELD CHAMBER E / TEL EPION INC

UG10-001188-11 / SHIELD CHAMBER D / TEL EPION INC

UG10-001197-11 / SHIELD CHAMBER M / TEL EPION INC

0045-00126 / PUMPING CHANNEL, ANODIZED, PRODUCER 200M / APPLIED MATERIALS AMAT

36-0053 / PCB BOARD LED STATUS / PROMETRIX

SVA603A-1-S / SVME/AT-BCN/A PCB BOARD (ES044-001240-1) / TOKYO ELECTRONICS TEL

CT2980-091329-12 / PCB IFB ADD ON BOARD / TOKYO ELECTRON TEL

N860-4725-T101 / WIRED MCHANICAL KEYBOARD PS2 / FUJITSU

152-1025K / HPS PNEUMATIC VALVE / MKS

2-F2-33110 / ARM, UPPER, 150-MM / DNS DAI NIPPON SCREEN

560-0040 /OBJECTIVE APERTURE ASSY ELECTRON SCANNING MICROSCOPE /HITACHI

420012204 / DIAMOND METAL BOND DISCS 9" 70UM 60-4402-3510-3 / 3M

0817409 / FACEPLACE

2101364 / CLAMP-RING 200MM 60 DEG HF WFR / LAM

SM07C101 / GAUGE LINEAR GAUGE 25MM (542-60 / SMC

00-88007-001 / TYPE 6E00811,SERVO, AMPLIFIER / PMI MOTION TECHNOLOGIES

LS-30-S377 / AMPLIFIER LEAK SENSOR ORG STR / TECHNICAL  TRY

0040-31998 / WELDMENT, BELLOWS ASSY, UPPER, DXZ / APPLIED MATERIALS AMAT

523-12110BJ000 / CONTROLLER AUTO MAN BACKUP 532 / MOORE INDUSTRIES

0475-0015-0003 / BELLOWS,8250 BEAMLINE / AXCELIS TECHNOLOGIES

9407-0045 / PCB 16K PROM / ROM MEMORY / INTEL PWA 1000669 / NANOMETRICS

13-8882-265 / BACKPLATE,DUAL SENSE / LAM RESEARCH CORPORATION

810-25368-001 / PCB RELAY BD LAM 2080 / LAM RESEARCH CORPORATION

Q64AD / A/D CONVERTER MODULE, 10VAC, 0-20MA / MITSUBISHI

252C-1-VPO / EXHAUST THROTTLE VALVE CONTROLLER / MKS

HG960046 / 472 VACUUM GENERATOR FURON / NOVELLUS

SYS68K CPU-30BE8 / SINGLE BOARD COMPUTER PCB / FORCE

715-108766-001 / LINER, FILLER, LWR DOOR / LAM RESEARCH CORPORATION

CT2980-092273-11/OVEN ADD ON BOARD#01 TAB2101AMF TAB2100 HTE-0A1-B-11/TOKYO ELEC

97171029 / DEFT, HANDBREAK, HANDLE ASSY SIP MANIPULATOR / MONO ENGINEERING

2-VC-28284-1/PCB AP-1186B IND OPERATOR PANEL GEDP-0111 200IFB 127-0 SK200/DNS

0020-70336 / WING FROG LEG / APPLIED MATERIALS AMAT

RH-11D-6001-E100D0/ DS SERVO ACTUATOR W OPTICAL ENCODER ME-02-0 /HARMONIC DRIVE

1181-000255-18 / TEL-ALPHA 8S BOARD MC-31042A / TOKYO ELECTRON TEL

BM32342L01-G / ASSY MOTOR, CABLE ENET VERT EXT / BROOKS AUTOMATION

9000-0101 / PCB POWERSAVE 500 LOGIC ASSY 200WW/ADAPTOR CABLE / ITT TECH

UDK5114NW2 / DRIVER MOTOR / VEXTA

0100-00060 / PWB ASSY, CHOPPER DRIVE II / APPLIED MATERIALS AMAT

8080011K007 / SHIELD, RADIATION, CRYOPUMP OB-8F 808001 / CTI CRYOGENICS

200001 / CONTROLLER, AUTOFOCUS PENDENT, RS 232, 120V AC, 6 AMPS / PRMS INCORP.

5010-646921-11 / DISC 300.3 / TOKYO ELECTRON TEL

7801-D-1010 / PCB, DO PC BD SOURCE ASSY STK NO 678611 / APPLIED MATERIALS AMAT

971135 / DIGITAL PROBE 5MM 5VDC / AMETEK

0090-90967 / DAQ, TYPE H REPLACES 0090-90445 XR80 IMPLANT APPLIED MATERIALS AMAT

8043275G001 / HELIUM LINE F2F / CTI CRYOGENICS

715-130065-001 / ARM-ASSY /LAM

CDQ2832-20DM CDQ2832-30D /SMC PNEUMATIC CYLINDER ASSY CDQ2832-20M, CDQ2832-30D

A4049-9515NE / VEXTA 5-PHASE STEPPING MOTOR 72-STEP - ENCODER 500P-R / ORIENTAL

3381-000065-13 / STAGE BASE PCB 97P7292 / TOKYO ELECTRON TEL

92117-01-1 / FIELD EMISSION DUAL ION PUMP POWER SUPPLY, AMRAY / KLA TENCOR

017700-215-26 / F-THETA JENAR LENS F=255MM Ⲗ=532NM 2Y=233MM130 400604 / JENOPTIK

0040-03691 / BODY VACUUM CHUCK, MF ROBOT, 300MM ELECT / APPLIED MATERIALS AMAT

GSS-CZMIG001 / MIRROR ASSY WITH VM500 GENERAL SCANNER MOTOR / CAMBRIDGE TECH

15-136828-00 / COLLAR SEALING SHOWERHEAD VCTR / NOVELLUS

CFT-150 / CONTROL  INCLUDES THERMAL PROBE / NESLAB

0020-23044 / SHIELD, TIN, LOWER / APPLIED MATERIALS AMAT

0021-39389 / PLATE, REFERENCE INDICATOR, 200MM / APPLIED MATERIALS AMAT

2220272 J / DIGI PAK / PHYSICAL ELECTRONICS

70030S /PLATE, GROD ELECTRODE GR-13855 /ELECTRO-GRAPH PLANSEE

UFC6B-04 / ULTRA FLEX SERIES MODULE LOCATION POWER SUPPLY MIODEL UBT1PQ / LAMBDA

18999 / COMBINATION FILTER / LEYB

V2ALVCES8050 / TRUE ION BALL VALVE 50-2 2 C-PVC ANSI/ ASAHI ENGINEERING

0620-03821 () / CABLE EXTENSION AS  ASC MOTOR SERIES 5M LON / AMAT

DP25-VRMS-ARS2 / MICROPROCESSOR BASED TRU RMS METER / OMEGA ENGINEERING, INC

2-VC-27645 / DNS SK-200,200V POWER INTERFACE  - GEPI-101/DNS

X3550 M3 / IBM LEAF X3550 M3 X5660 96GB W/O DRIVERS;4022.650.017 / ASML US, LLC

9100525 DIAMOND WHEEL / DISCO 9100525 DISCO RS-01-3-40/60-NA-C

E17118110 / VARIAN APERTURE DEFINING PROFILE GRAPHITE / VARIAN E17118110

E2760-80500 / MESS-IFORMER TRANSDUCER 1 CHANNEL FA MODEL / BRANDLE ELEKTRONIK