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。

GESS-003 FM-0014-1 / SPIN SV IFC BOARD .16 WIRING - MAP-16 DNS / DAI NIPPON

DV2-144NCD2 / DELTA SOLENOID VALVE 60AIRPSI, 50 H2P PSI, 1/4NC ORIFICE, 24VDC

NZMH 6-63 / CKT BREAKER 40-63A, 3 POLE KM / MOELLER

G6B-4BND WITH G6B-1114P-FD-US / 5A 24VDC, 5A 250VAC, 5A 30VDC, 5A 250VAC / OMRON

625-4540410 / ROFIN SINAR LASER5-94.138 0 PCB PLCD / ROFIN-BAASEL, INC

194341A-01 / 16-CHANNEL ANALOG INPUT BOARD PCIM-DAS16JR/16 / ECI TECHNOLOGY

ENEC441-21 / LAN SERIAL CONVERTER SIO I-F IT, DC24V, 160MA / ALGO

1005003 / MACROILLUMINATION HELIUM LAMP POWER SUPPLY, NIKON 9500697 / PRMS INC.

84FBGA / POGO PIN SOCKET / TSE

N3S010 / VALVE SOLENOID MANIFOLD WITH 17 N3S010 / CKD

90-105480A51 / PCB CASSETTE INTERFACE / ASM AMERICA INC

MAC998F B / PCB MSD02B FBPCB-0381 581B291C / PANASONIC

3161011 / PCB, TIME-PURGE, 7800 SERIES / KOKUSAI SEMICONDUCTOR EQUIPMENT

0992-70276 / GRID, CHAMBER / AXCELIS TECHNOLOGIES

1501000 / PCB ASSY POWER CONTROL BOARD VAPORIZER/ NOVA ASSOCIATES

ST122VGAU / 2 PORT VGA AUTO SWITCH / STARTECH

559256 / MICROSCOPE OBJECTIVE NPL FLUOTAR 20X/0.45 / LEITZ WETZLAR

91019-01 / VERSATEST TEST SITE CONTROLLER / HP

0020-18270 / FLANGE O-SEAL, THV HDP-CVD / APPLIED MATERIALS AMAT

0020-19002 / FLAPPER-SLIT VALVE ANODIZED, DOOR SLIT VALVE / AMAT

198-335-849 / 63 TAPER TUBE SK31,1500-15000,63 DN 50 335 / GEORGE FISCHER

112989 / PCB,112990,41726001 / ESI

0050-33961 / FORELINE / APPLIED MATERIALS AMAT

0040-02661 /BRACKET,FILTER  LATCH ASSY,HT DPS /APPLIED MATERIALS AMAT

SR5084-000918-11 / MOTOR, ASSY/TOKYO ELECTRON

MXQ12-20 / 5 PORT SOLENOID VALVE / SMC

1624A0033 / SERVO MOTOR 3500 EXT/RET ROBOT / FAULHABER

CA18CLF08PA / PHOTOELECTRIC PROXIMITY SWITCH SENSOR / CARLO GAVAZZI

0150-20168 / CABLE ASSY, SEC, GEN / APPLIED MATERIALS AMAT

IC693ALG221E / PCB - INPUT MODULE ANALOG CURRENT 4POINT 4-20MA / GE FANUC

WPLV202S0 /WAFERPURE MEGALINE GAS PURIFICATION SYSTEM FOR OXIDE GASES/ MILLIPORE

102935-100 / BUS CONTROLLER WITH ISA BUS / MICRO CONTROL COMPANY

UG10-002011-11 / PLATE SHIELD MOT / TEL EPION INC

LC1D8011 / MAGNETIC CONTACTOR 600V 110A / TELEMECANIQUE

CWAX16KL1/OPTIMIZER 16 CARTRIDGE UPE 20NM 2-015 KALREZ ORING/ENTEGRIS

3160711 / I/O BOARD 3160711 / BRUCE SYSTEMS

2313775-00 / TEM-TECH LAB PRESSURE DISPLAY SWITCH NPS-6200P420 -0.1 - 1MPA / LAM

USH-250BY / LAMP MERCURY - USHIO USH-250BY / USHIO

0140-11228 / HARNESS ASSY, NDIR ENDPOINT TO  CH HA / APPLIED MATERIALS AMAT

TVC-4R-02 / AUTO GATE VALVE REMOTE / TERA TECH

0100-00055 / WPWB,GATE HEATER CONTROL / APPLIED MATERIALS AMAT

DII38-25-011Z / BEI 23/8" 9820 MOTOR ROBOT TRAVEL / BEI IDEACOD

000000-1294-311 / V LP523 H40 COMPL / ZEISS

0050-88507 / GAS LINE CH FEED THRU OUTER TO 3-WAY VALVE DPS / APPLIED MATERIALS

E0R05-2710 / PCB MEMORY 64K BYTE / DNS DAI NIPPON SCREEN

H-10213 /MOTOR M48X50/1 SN5/32 I=69:1 IGO 500/2 W/OSVALD JENSEN A/S/KAG KAHLING

9V4006-021 /DISC DRIVE,9871413,5065-5284,A6742-69001,SG3JA1W144/ HEWLETT-PACKARD

162-02-009 / CONTROL THERMOCOUPLE / ATMI

0020-91610 / PLATE, CLAMP, CH. SHIELD, 300MM ENCORE T / APPLIED MATERIALS AMAT

C200H-MD215 / I/O MODULE / OMRON

0020-26439 / SHIELD, LOWER 6" / APPLIED MATERIALS AMAT

1168460 / PROXIMITY SWITCH ASSY / AXCELIS TECHNOLOGIES

060B205066/060B2050 LUBE OIL PROTECHION CONTROL TYPE MP54/ DANFOSS

12-8800-186 / BRUSH SUPPORT, S.S. SHAFT / LAM RESEARCH

0040-05683 / FLOOR CVR, O2 ANLYZR, CH C TRAY, RTP, CMF / APPLIED MATERIALS AMAT

14203D248 / MOTOR,38.2VDC / PITTMAN

714-000547 / LAM 590 GAS BAFFLE / LAM RESEARCH

UFC 8160 / UFC 8160 / IT

SEC-7330M / MASS FLOW CONTROLLER 30SCCM / COASTAL INSTRUMENTS

P1050-50 / POWER CONTROL SYSTEM / PHASETRONICS

E11288670 / SOURCE FILAMENT INSULATOR ASSYVID-9000164351 / VARIAN

70312542100 / AMAT MOD. OPAL SYSTEM CONT 2 PCB / APPLIED MATERIALS

X20A02622 / DIGITAL OUPUT MODULE W/ X20 TB12 / BR AUTOMATION

14204C223 / MOTOR ENCODER ASSY / PITTMAN

440115 / BRAIDEDHOSE, NW25, 48"LG, MED.WALL,KFRL-100-48F2 / MDC VACUUM PRODUCTS

6-SHP-1 / 6-SHP-1, SEMITOOL / SEMITOOL

0240-76690 / KIT, SPACER MODIFIED SHIELD 8" G-12 HARD / APPLIED MATERIALS AMAT

102236 / NC 316L PNEUMATIC SOLENOID VALVE 0.34-0.69MPA / FUJIKIN

715-250717-001 / BAF, TOP, UPPER ELCTD, 150MM / LAM

CSFE-2-0-30 / DISCHARGE BYPASS VALVE FOR AIR COND. OR FRIG SYSTEMS / SPORLAN

PAA150F-24 / POWER SUPPLY; AC-DC; 24V@6.5A; 85-264V / COSEL

GLPV2HCLVMM4 / GASKLEEN PURIFIER 1000 PSIG MAWP 70C MAX TMP HYDRO CHLO / PALL

17233330 / LINER, VG-MAGNET DUCT / AXCELIS TECHNOLOGIES

2470G1-X2 X2MC-UGD1 / DIGITAL MFC MASS FLOW CONTROLLER C4F8/50CC / SAM FANTAS

788-240033-300 / SFC2481FABD2 MC-4SAGTBL DIGITAL MFC CH3F / SAM FANTAS

788-300015-10L / SFC2481FABD2 MC-4SAGTBL DIGITAL MFC / SAM FANTAS

788-630001-500 / 2480G1 MC-AGT0BL1 DIGITAL MFC MASS FLOW CONTROLLER / SAM FANTAS

788-630010-500 / 2480G1 MC-AGT0BL1 DIGITAL MFC / SAM FANTAS

788-630015-020 / 2480G1 MC-AGT0BL1 DIGITAL MFC 20SCCM / SAM FANTAS

788-630019-500 / SAM MFC 248G1 MC-AGT0BL1 C12 500 SCCM / SAM FANTAS

788-630033-010 / 248G1 MC-AGT0BL1 DIGITAL MFC / SAM FANTAS

788-630049-300 / 2480G1 MC-AGT0BL1 DIGITAL MFC 300SCCM / SAM FANTAS

788-630108-100 / SAM MFC 2470G1 MC-AGT0BL1 100 SCCM / SAM FANTAS

2-103-004() / SENSOR IDI LIQUID LEVEL, KAS-80-30-IL-M32 / FSI

17110151 INA / 14264 UPD TO 17133810 ELECTRODE GROD / AXCELIS TECHNOLOGIES

15-00745-00 / FTG,PORT / NOVELLUS

SR25-2P-N-00699609 / TEMP CONTROL / CANON

QCGF1015 / CIRCUIT BREAKER / WESTINGHOUSE

321-4-X-24DFO / CON TUBING 1/4 DO 24"L FVC / CON JUBING

PSE-A127848161 / PNEUMATIC SEQUENCER ENTRY, EXIT MODULE / PARKER

372-72254 / SCHRADER BELLOWS, BORE NFPA TIE ROD CYLINDER / SCHRADER

7426AC / AMP, LINEAR MOTOR DRIVER / COPLEY CONTROLS CORP

100-C37*00 / CONTRACTOR OR CONTROL RELAY / ALLEN-BRADLEY

2-A14626-01 /WATLOW THERMOCOUPLE AU / HITACHI

839-250568-001 / BELLOWS LOWER ELECTRODE / LAM

0021-76845 / CARRIER, UPPER, WXZ / APPLIED MATERIALS AMAT

CWUZ0S0P1 / TEL FILTER, SD2 / ENTEGRIS

110494-003 / TI-O / PROLOG

853-034395-001 / ASSY, OPT, SNSR LFTR STRPR / LAM RESEARCH

851-5095 / HIGH VACUUM VALVE LAB, 2-WAY /VARIAN

0060.0.173A / VME BAKPLANE 7 SLOTS BUS 183 PCB BOARD,166555-4 21-91/ LEUKHARDT

002-7287-02 / ASSY, VACNITROGEN SOLENOID ALD ATM ROBO / BROOKS AUTOMATION

BD4-3847 / CANON I3 ND MICROSCOPE FILTER HOUSING / CANON

310991 / PWB ASY 200ACU UTILITY  / AXCELIS TECHNOLOGIES

UXL-S150MO/KL / LAMP XENON 150W 5200XP / USHIO

CDI CPU-9E / PCB COMMICATIONS CPU-9 / CDI, INC

SSC01A4B8C5S / SOLID SENSE PRESSURE XDUCER / MILLIPORE

CT023-001770-1W0298() / BELT, TIMING, 2790-3GT-15 / TOKYO ELECTRON TEL

1517300 / PCB, CMP2000 INTERFACE / AXCELIS EATON

PC2-4200E-444-12-A0 / DDR2 533 CL4 ECC / CRUCIAL TECHNOLOGY

032-A4-NV46-SX / GEFORCE2 MX400 AGP / NVIDIA

E15001400 / AIR PRESSURE SENSOR / VARIAN

020-91-215-4/ION ANALYSIS COMBO GLASS ELECTRODE-SGJ 6.0233.100/ BRINKMANN

0140-23720 / HARNESS ASSY LOADCUP WFR PRESENCE SW ADA/ APPLIED MATERIALS AMAT

SGMPH-01AAE41 / AC SERVO MOTOR W100 V200 A.89 / YASKAWA ELECTRIC

E17384260 / APERTURE HORIZONTAL EXIT LONG TOP / VARIAN

FS-N12P / SENS, FIBER OPTIC AMP MEI, BLACK OUT 24V 20MA / KEYENCE CORP. OF AMER.

PK268-02B / STEPPING MOTOR 2-PHASE / VEXTA

SBC3386EX / MICRO SYS ANALOG GROD ISOLATION PCB10116D / FIRST TEN ANGSTROMS

0140-08504/ HARNESS ASSY, MANIFOLD OVERTEMP, 300MM T / AMAT

0-521-899 / MINI MOTOR WITH ENCODER / HENGSTLER

SGDG-04GT F / SERVOPACK, 90-253VAC 1PH 5.5A 3PH 3AMP0.4KW 3W1446-1 / YASKAWA

853-017964-030 / TCU TO RF INTERFACE CART CABLE 80C A/8/ LAM RESEARCH

601650 /PCB, MR8-16 RELAY OUTPUT BOARD /REAL TIME DEVICES RTD

013872 / ASSEMBLY ANALOG I-O CARD / DATRICON

FBPCB-0173 / PCB, 8-DI, COMM / DISCO

0063840-001 / DISCRETE I-O BACKPLANE BOARD ASSY D006341 / HK SYSTEMS

90869-1-1 / AMRAY ASSY SIX INCH MOTOR STAGE CONTROLLER PCB 800-0292D / AMRAY

01-W3336B / MVME 316 MODULE BOARD / MOTOROLA

KD259169 / PARKER, SERIES S AIR CYLINDER / PARKER

STP-BG9-4942-000 / PCB INLINE IN/OUT ASSY / NIKON