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。

0100-02195 / PWBA SDS GAS INTERLOCK PCB / APPLIED MATERIALS AMAT

MLTW-A-120F-3 / DIE PUMP SAW ASSY / DISCO

61-337124-00 / MANIF, 3, VMS DOSING, PILLAR (Parker CASY-2217-SDM S / LAM

0020-30418 / RING, TOP, 8 , EXT CATH, DC, POLY / APPLIED MATERIALS AMAT

0040-44814 (LOT OF 8DM S / CAP, LAMP FEEDTHROUGH / APPLIED MATERIALS AMAT

03-006314D01 / PCB BOARD, SERVO INTERCONNECT / ASM AMERICA INC

AS303165 / MAG-PHASE IT / ANAHEIM AUTOMATION

2344580-00 / PCB, DANAHER ZMP SYNQNET CPCI 1107-0120/ LAM

0100-01488 / Z SENSOR PCB / APPLIED MATERIALS AMAT

54-0099 / PCB LOGIC INTERFACE C2C REV J, 36-0082 REV C / PROMETRIX KLA TENCOR

E11115110 / VARIAN CVCF CRYO INTERFACE ASSY / VARIAN

0200-03264 /6 INCH OUTER RING / APPLIED MATERIALS AMAT

1-130-023 /PCB /IDI INTEGRATED DESIGNS INC

70512529000 / MOD. OPAL FINE SHIFT BOARD. /AMAT

UF7811-2-DV2S-24V /LCD DISPALY PANEL RS485 I-O DVI-D I-O / DIGITAL

5024757-01 / PCB BOARD WITH FAN / ALPHA

SD-N400/CONTACTOR 10.9S MAX VOLT 440-600 1PH 300 3PH 300 AUX A600 R300/MITSUBOSH

0021-19035 / SHIM, 1MM(.039 )SST 300 MM PVD / APPLIED MATERIALS AMAT

0150-21340 / CHAMBER 2 INTERCONNECT EMC COMPLIANT () / APPLIED MATERIALS

ES1805-320104-11 / RING HER COOLING F/R S-1660 / SNT-USA INC

UPH566H-B-A25 / STEPPING MOTOR 5PHASE DC 1.4A 2.26 2-39-44434 SCREEN SPE / VEXTA

0020-21462 / INSULATOR SOURCE 11.30" / APPLIED MATERIALS AMAT

BM11254 / WIP VACUUM BACK / BROOKS AUTOMATION

P5A013500RAT0 / MASS FLOW CONTROLLER MFC 5 SCCM N2/ MKS

16-323877C01 / LIGHT DAM-REAR REFL. / ASM AMERICA INC

013087-100-11 / FOUP CLAMPDOWN FULL ASSEMBLY / BROOKS AUTOMATION US, LLC

9700-5820-01 / CONTROLLER, 115V 4 BAR ION / ASYST TECHNOLOGIES

715-006414-001 / PLATE, TOP AIRLOCK / LAM RESEARCH

61-285456-00 /02-309899-00 NOV DSW-75-12.7-P-A-SA33T04KR PMAX10BAR/145PSI/ FESTO

Z1-C100 / HEATER 22MM CERAMIC DN:DG790001 / TORAY

PA0001A / I-O DISTRIBUTOR / TOKYO SEIMITSU

7533-50 / 100 RPM 12 VDC MOTOR, PUMP MASTERFLEX PERISTALTIC HEAD / COLE PARMER

WG3NS1RR2 / INLINE GAS FILTER / MILLPORE

UFC-1110A (ODM S(20000SCCM) /MFC,20000SCCM,GAS O2 /IT

52-0023 / SM DISPLAY LCD, SM200/300 / KLA PROMETRIX

CT310-414107-1 / GUIDE RING / TOKYO ELECTRON TEL

79460-R1 / RECTANGULAR GATE VALVE REPLACEMENT GATE / VAT

FPS1000-48 / AC DC CONVERTER, AC MIN:85V; IN VOLTAGE AC MAX:265V / TDK-LAMBDA

206036-3(LOT OF 97) / RECEPTACLE,CPC  HANG,16 HOLE,CH 206036-3 / TCYO

810-17025-3 / RF GEN. CART BREAKOUT BOARD / LAM RESEARCH

WRST-02NX168S / WAVEGUIDE ASSY FOR TEL TOKYO ELECTRON / NIHON KOSHUHA

600912 / INSULATOR-LOWER ELECTRODE QUARTZ / LAM RESEARCH

108378 / BROOKSNET DN 002-8421-01 / BROOKS INSTRUMENTS

D1065481-D / PCB 1600-4 TRAY-ASSY D1065742-505 / VERTEQ

16-320801 / KEYPAD CIRCUIT,03-320800,D86512-94 / ASM AMERICA INC

3130241 () / PCB ALARM PROCESSOR ASSY / KOKUSAI SEMICONDUCTOR EQUIPMENT

853-015686-005 / POWER MODULE REV B / LAM RESEARCH CORPORATION

122BA-00010EB / BARATRON,10 TORR,1-2IN VCO APPLIED MATERIALS 1350-01011 / MKS

9840-0342-1150-3-11 / HTR,KIT,S-SHAPED BOT / MKS

3ZX1012-ORH11-1AA1 () /SIEMENS IEC 60 947 VDE 0660 CONTACTOR 24 V 50-60

710-659846-00 / XFLEX 3 BOARD REV B0 / KLA TENCOR

70530-001 / PCB BOARD, XVME-530 / XYCOM

SS-45VCR8 / SS BALL VALVE, SHUT-OFF 1/4 TURN X 1/2 VCR 2500PSI, 172 BAR/SWAGELOK

0240-24372 /PROCESS FLAGS KIT DUARSOURCE TTN /APPLIED MATERIALS AMAT

127AA-00010E / BARATRON 10 TORR 15 PIN 15VDC 0-10VDC / MKS

SM3-25-2DCM / POWER SUPPLY,5VDC,15VDC,25W,POWER GEN,SM3-25-2DCM / POWER GENERAL

PV-10-1344-00-06 / VALVE, 3WAY RE-CIRC, 304-042 / PARKER

NBR-220 755-66461-000 / TWO PORT BRIDGE WITH LANVIEW / CABLETRON SYSTEMS

853-007555-001 / ASSY BRAKE, PITTMAN GM9413-3 12VDC / LAM RESEARCH CORPORATION

13-8082-272 / SHIELD, BELLOWS SPINSTAT / ONTRAK

5880-0944-0002 / PLATE, GROD, ENERGY FILTER,SI COATED / AXCELIS TECHNOLOGIES

0140-06834 /HARNESS ASSY, PRODUCER E, RF GENERATORS /APPLIED MATERIALS AMAT

TAS-SW(), 2 SETS / PCB LIGHT ASSY / ZMISC

VL-7806 / PCB BOARD / VERSALOGIC

77288 / CKA, VME-MMB INTERFACE / ELECTRO SCIENTIFIC INDUSTRIES

81710-05195-020 222B / PCB ANALOG I/O MODULE ASSY / ROBOTROL CORP

6813078 (LOT OF 7) / FILTER, GSMM-55-010-11 /MOTT CORPORATION

M54070212 / LASER SENSOR SENSORKOPF LV-H62 G6-03-06 / TEC-SEM AG

VTD12-250 / DUAL TRACKING POWER SUPPLY / ACOPIAN

VE-1115X / FRONT-SHIELD MAIN TARGET CHAMBER ARC SPRAYED / VENZON ENGINEERING

SEC-Z712MGX O2 5 SLM / STEC MFC O2 5 SLM 797-189900-001 / HORIBA STEC

SEC-Z712MGX H2 10 SLM / STEC MFC H2 10 SLM 797154719-007 REV A / HORIBA STEC

61991 / PCB, WAFER HANDLER / FUSION SYSTEMS CORP

141AA-00010DB-S / SWITCH, VAC, 10T, 141AA-00010DB-S / MKS

0150-35740 / C/A, EMC COMP., HEAT EXCHANGER, 75FT CSI / APPLIED MATERIALS AMAT

TPS 201 / TURBO PUMP CONTROLLER POWER SUPPLY / PFEIFFER

0100-90178 / PWBA VAC CONTROL FEEDBCK / APPLIED MATERIALS AMAT

0090-00726 / HARNESS, SWITCH, LIQ. LEVEL LOW, 300 MM / APPLIED MATERIALS AMAT

0020-28158 / HOUSING, DIAPHRAGM, PAD CONDITIONER / APPLIED MATERIALS AMAT

22211-6NL-01() / SENSOR / PILZ

00512-05 / POWER SUPPLY 512 FOR DISPENSE PUMP / CYBOR CORP (IDI CYBOR)

14889-01 / PCB ANALOG CONTROL, 14889-01-0258 / SEMITOOL

GM9413J818-R3 / PITTMAN MOTOR, 12 VDC, 12-8882-064 / PITTMAN

MAHLX001-B () / NSC ASSY. (641,651) (DISCO)

2596537 / PCB CPU ASSY 2100-0307-05 / APPLIED MATERIALS AMAT

2-821465-1 / BLOCK HEATER 3L-3004 MATERIAL-A5052 / HITACHI

649A12T11CAVR-S / MFC HE 10 SCCM / MKS

0140-12305 / HARNESS ASSEMBLY MP PUMP AIR SW LOADLOCK / APPLIED MATERIALS AMAT

AMD312-X20-M5 / VALVE, RESIN TEL 012-005795-1 / CKD CORPORATION

DCC107 / 9.2-16VDC TO 12VDC 5VDC POWER SUPPLY / INTERNATIONAL POWER SOURCES

100470387 / PCB BOARD / SEAGATE

97844711 /BALLSCREW ASSY. /CARTER ENERGY SYSTEMS

6LVV-DP13680-C / VALVE-DIAPHRAGM DP SERIES / SWAGELOK

BIR-021765 / BOARD, ALPG (H,P) / ADVANTEST

2S602-036 / NIKON DC MOTOR FAULHABER 3557K024CS / NIKON

810-000474-001 / LAM RESAERCH PCB, POWER DRIVER CARD / LAM

849-432144-001 / KIT MAINT QTR XPRT CHAMBR A6 / LAM RESEARCH

CIF30-DNM / PCB BOARD WITH MOT / HILSCHER

CIF50-DNM / CIF50-DNS, ML1 94V-0, COMM INTERFACE PCI DEVICENET-SLAVE / HILSCHER

CT6042 / PCB, VIDEO BLASTER VBSE100 / CREATIVE TECHNOLOGIES

11732005 / ARM-WAFER MIS-200 CHAS / LEICA MICROSYSTEMS

UFC-1660 BC13 / UFC BC13 760TORR 200CC 500 PSI MAX / IT

750-660066-001 / FIXTURE LAMP REPLACEMENT KLA 2132 / KLA TENCOR

CICP1800MB2X2 / SECURITY SENSORPANEL MEMORY 2MB / CONTINENTAL ACCESS

UG10-00-11 / SHIELD LEFT GUIDE ROD / TEL EPION INC

UG10-002209-11 / SHIELD CHAMBER R / TEL EPION INC

1GT-16LD-B19 (STACK OF 2DM S / 16LD, 10X24 DICING TRAY 150 DEG C MAX / DAEWON

0150-03463 / CABLE ASSY, FIC TO OPTO PC, PDO 3  4, 3 / APPLIED MATERIALS AMAT

716-011830-006 / RING,FOCUS LAM 9600 / LAM RESEARCH CORPORATION

500-1-P-1-B-1-RBP-LFS(2 PIECE ASSEMBLY) / 500 02 MONITOR / DELTA F CORPORATION

103885-000 / 4M VECTOR STORE / MICRO CONTROL COMPANY

B00MRW060V016 / POWER SUPPLY, MRW-5600 V4V, NCS, DUAL ,FAN SENSE / ZIPPYS

810-5063-006 / PRE-ALIGNER DRIVER BOARD, FAB 010-5062-002 / ASYST TECHNOLOGIES

SFC-M / FLOWMETER DC24V / TOKYO KEISO

1503010 / PCB TM 990 101 MA MICROPROCESSOR 5A / AXCELIS

002-4485-04 / PROCESSING BOARD VARIAN/ BROOKS AUTOMATION INC

E15002450 / DIGITAL IO / VARIAN

E15000830 / POWER SUPPLY INTERFACE PCB / VARIAN

0021-39972 / LINER,MIDDLE THROTTLE VALVE / APPLIED MATERIALS

LF-A40M-A-EVD (TEOS) / LIQUID MASS FLOW METER 4G/MIN / HORIBA

0020-21463 / SHIELD, BOWL AL / APPLIED MATERIALS AMAT

270-2487-11 / S MICROSYSTEMS 270-2487-09 SYSTEM BOARD PCB ASSEMBLY IT / S

NVT-910-00144 / GAS STICK VALVE GAUGE W/AZ1010S 2PW FV4 FV4 HF / AP TECH

1501620 / PCB, DATA TRANSCEIVER / EATON

K81EA00 / PNEUMATIC SOLENOID VALVE REPLACEMENT VALVE BODY / NORGREN

CWUV0S0S3 / FILTER 0.1UM 1/4"SWG MILLIPORE / ENTEGRIS

911043-003 / ASSY, GAUGE GUARD, 0.5IN FLARE / LINDE ELECTRONICS

716-05100-004() / QUARTZ, OUTER SPACER, PLT, REAC UPPR SE / LAM RESEARCH

AD71-S2 / MELSEC PROGRAMMABLE CONTROLLER / MITSUBISHI

1810219001 / POWER SUPPLY REGULATOR BOARD 44-10193-001 / VARIAN

47G0125-014 / PWM DRIVE DC BRUSH STEPPER 3A/48V XPS-DRV01 NANOPHOTO E169497