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。

PS11-MC200-N / AMBIENT INLINE PURIFIERS, PURE GAS / MICRO TORR

C41215000 / PV16PKS B VALVE, RIGHT ANGLE 7BARG 24V 1.25A / EDWARDS

298693-001 / PCB BOARD WITH MOT / ELSA

M393B5170EH1-CH9 / ECC DIMM MEMORY 4GB EACH PC3-10600 / SAMSG

GM8712F657 / MOTOR, 19.5 TO 1 RATIO, 512 CPR, 24VDC / PITTMAN

0020-04160 / SPACER CIRCULAR EXT CATHODE / APPLIED MATERIALS AMAT

SQ420E1002PFS8FF / SQ420 LOW PRESSURE REGULATOR MAX INLET 250 PSI / PARKER

0090-09006 / WIRING SECONDARY SLIT VALVE ACTUATOR / APPLIED MATERIALS AMAT

XC-77 / CCD VIDEO CAMERA / SONY

 XC-77 / CCD VIDEO CAMERA / SONY

2017743 / ENCODER, ROTARY / HENGSTLER

99-287-003 / SHUTTLE INTERFACE BOARD SST-3 / TEGAL

CV-110 / VPS CONTROLLER DNS SK200 / DNS DAI NIPPON SCREEN

PX535MH-A / 5-PHASE MOTOR DC 0.75A 3.5 OHM 0.36 DEGREE / VEXTA

GM8714G835 / DC MOTOR 24VDC 8000 SERIES / PITTMAN

9700-7006-01 / MOTOR MINIMOTOR 16-5 262:1 K1096 / FAULHABER

00049655-00 / REGULATOR TEMPERATURE PT100 TB-1 24V / SCP SERVICES

001057-00 SOLENOID ASSY / PCB SOLENOID DIODE, SOLENOID ASSY / GRYPHON

XC 60-350 / VACUUM CAPACITOR 12KV / COMET GROUP

PCL245-NB-D24 / SOLENOID VALVE, PCL245-NB-D24 / PARKER

750-337 ASSY / AJET, CAN OPEN BUS COUPLER, 750-337 / WAGO

PA0006 / NOLOE FILTER / TOKYO SEIMITSU

SS-BN8FR8-2C / VALVE - BELLOWS  -VCR FITTING - STS 237409 / SWAGELOK

OEM-6-14392 / PCB DRIVER AMP OEM-6 RF GENERATOR / ENI

89CT90 / PCB-ARCNET CARD / BOC EDWARDS

046124 / ION PAC A514 ANALYTICAL COLUMN / DIONEX CORPORATION

E17055950 / BLANKOFF - DUMP / VARIAN

3161352 / VIDEO DISPLAY PROCESSOR / KOKUSAI SEMICONDUCTOR EQUIPMENT

0050-27752 / WELDMENT UPPER, NF3, RPSII, 300MM PRODUC / APPLIED MATERIALS AMAT

BLK-024425 / MD BACKBOARD / ADVANTEST

DS012-004333-1 / VALVE,AIR FPR-71-9.52-2-PA-BR (KU150099 / TOKYO ELECTRON

2172582/ MODEL 7617 COMMICATIONS INTERFACE MODULE / BRUCE INDUSTRIAL CONTROLS

908210-001 / 908211-001, CIRCUIT BOARD / TYLAN

810-017008-003 / PCB, TEMP SENSOR / LAM RESEARCH CORPORATION

VCS3826I / PCB BOARD / JATON CORPORATION

714-045709-002 /BLK, FLOW, SIM CANTLVR, 2300 / LAM RESEARCH CORP

44A-LOO-GDCD-1HL9 / SOLENOID VALVE / MAC

BM24312L01 / 18V BATTERY BACKUP MLRV / VARIAN

618-090510-002 / UONSOLE BOARD 590-090510-002 / HERMES MICROVISION INC HMI

CMX1M1110 / MANOMETER 100MTORR 0.1TORR MODEL CMX45 BARATRON

220690018 / AIR CYL CDQ2B50-75DC / APPLIED MATERIALS AMAT

E15000510 / PCB ASSY 30KV DEFLECTION DRIVE STAGE / VARIAN

0190-51546, 0190-23965 /HOT ION-PIRANI GAUGE WITH SENSOR/ APPLIED MATERIALS AMAT

70019772 / SNSR PWR ITC PCB / BROOKS EQUIPE PRI SENSOR POWER ITC PCP

0150-21342 / CHAMBER 4 INTERCONNECT EMC COMPLIANTY / APPLIED MATERIALS

713-012659-006 / RTNR, FACE SEAL GAS INJCTR / LAM RESEARCH

Z03CAA002 / BOARD ANALOG SETPOINT SPTHRM1 / ZMISC

LCD-060 / LCD SCREEN, 2X40 DISPLAY RAPITRAN II, LCD-060 / FAITH ENTERPRISES

KX00075 / Y SENSOR NUM. 4 / PRI

LP522-01 / POWER SUPPLY / KNIEL

0010-91012 / CUSP MAGNET ASSY / APPLIED MATERIALS AMAT

DS3810-330709-11 / 627911884 HUB, BTM INCONEL 600 DIFFUSION / TOKYO ELECTRON TEL

CV-C1 / CCD CAMERA 16MM 1 -1.6 LENS SK200 / DNS DAI NIPPON SCREEN

EAUM-985800 / SWITCH, PPWC / SEEKA

9236S009-R1 / MOTOR, ENCODER, 24VDC, 500PPR / AMETEK PITTMAN, INC

S-909764 / SWITCHING SEL, S-909764, LAMBDA / LAMBDA ELECTRONICS

9234S007-R1 / MOTOR, ENCODER, 24VDC, 500CPR / AMETEK PITTMAN, INC

7.01.080 / DIGITAL I-O BOARD / TEMPRESS - GENERAL SIGNAL

0200-35957 / WINDOW 2.75 DIA SAPPHIRE DPS CHAMBER / APPLIED MATERIALS AMAT

12EB120 / POWER SUPPLY / ACOPIAN

130-04680-00-A00 / PCB BOARD WITH MOT / LUCENT TECHNOLOGIES

2071406 / PCB BOARD SCSI 39320A / ADAPTEC

0190-00405 / DRIVE, HARD DISK, 4.5 GB, 3.5" SCSI, SEAGATE ST34520N / AMAT

16756-503 / BRD ASSY NON-INTRPT TIMER 302 / SEMITOOL

HA010E1 / VALVE PLS PLS 24VDC EV / HUMPHREY

HA010E1 / VALVE PLS PLS 24VDC EV / HUMPHREY

6L-FV4-VR4-7132/ SWITCH EXCESS FLOW SENSOR M- M7132 K43422/ SWAGELOK

15D782052L4/MOTORIZED DIAPHRAGM VALVE 613 PTFE J475HP PS6.0BAR 230V 50/60HZ/GEMU

0140-20062 / HARNESS ASSY, DC POWER CH. CA12 SYSTEM / APPLIED MATERIALS AMAT

095291 / BOARD / FUSION SYSTEMS CORPORATION

PX655-10DI / DIFFERENTIAL PRESSURE TRANSMITTER, SUP. 12-36VDC / OMEGA ENG. INC

MGPL25-30Z / COMPACT GUIDE CYLINDER MGP SERIES, MAX 1.0MPA / SMC

15-391861-09(LOT OF 8) / PIN,MCA,SAPH,3-16DIA,0.8101IN,1 FLAT END / LAM RESEARCH

0020-09996 / SHIM RING, 4, OXIDE / APPLIED MATERIALS AMAT

SZ3360-5NL0Z-C6 / SZ3360-5NL0Z-C4 / PNEUMATIC AIR CYLINDER / SMC

BGH-018825 / T5365P TEST HEAD BOARD / ADVANTEST

BGH-019207 / T5365P TEST HEAD BOARD / ADVANTEST

BGL-18831 / T5365P TEST HEAD BOARD / ADVANTEST

ASD12A-C / VEXTA STOCKER Z Y-AXIS CONTROLLER CS040-002422-1 / VEXTA

116074-A / VALVE CONTROOLER BOARD, VT A-94V0 9938 /MIRAPRO

TRY100251115M2 / JOYSTICK CONTROLLER / MEGATRON

L6591-314 / VALVE,AIR / VARIAN

0100-09022 / MINI AI/AO BD P5000 / APPLIED MATERIALS AMAT

BG9-3769 / CANON I3 BH8-0766-01 PZ DRIVE PCB / CANON

044-1177() / CABLE, FLEX, DISPLAY 703-1233-01 CTS 2604/BROOKS AUTOMATION

AK-BX511DIT6 / PACK DRIVER STEPPING MOTOR DRIVER DISCO / ASAHI ENGINEERING

BM23100L02 / SERVO MICRO PROCESSOR PCB / PRI

0190-26328 / HOT ION, PIRANI GAUGE / APPLIED MATERIALS AMAT

713-045638-001 / FXTR,INDUCTOR,L3 / LAM RESEARCH CORPORATION

MQDA043D1A / AC SERVO DRIVE / PANASONIC

D37215000 / HIGH VACUUM NETWORK INTERFACE MODULE / BOC EDWARDS

81710-04225-010 / PCB PNEUMATIC CONTROL ASSY 130422550 REV D / OERLIKON

84865 / ACCELERO-METER / ELECTRO SCIENTIFIC INDUSTRIES

BM18275 / COMM. KEY PLUG ASSY / BROOKS AUTOMATION

632720140-00 / FCTION BD DIGITAL I-O / ASM AMERICA INC.

W3000-10-F1Y / FILTER HIGH PRESSURE AIR / CKD CORPORATION

MUMS012A1A0S / AC SERVO MOTOR WITH GEARHEAD / PANASONIC

0150-70148 / CABLE; BLACK W/ROD PLUG / APPLIED MATERIALS AMAT

0620-01517 / CABLE ASSY STATOR INTERFACE 20 FT / APPLIED MATERIALS AMAT

SPS-001 / TOSHIBA POWER SUPPLY, MODEL: ASTEION / COSEL

FC-2902MEP-T / MFC 5000 SCCM, GAS N2 / MILLIPORE

21-0025 / PNEUMATIC CYLINDER RAM 4IN BORE 7IN STROKE / TRD MANUFACTURING

110338 / MAXON RE-MAX MOTOR, 267360, M90500 0A2.02 / MAXON

TW908 / PCB BOARD / TERADYNE

CWHF01XST / FILTER, MICROGUARD HT C UPM 5NM 10 INCH C-0 E-FKM / ENTEGRIS

UG10-000951-11 / PLATE MOT GATE APERTURE / TEL EPION

101413-RT / CARD - D TO A 8 CHANNEL / UTI INVENTORY MANAGEMENT SOLUTIONS

2348098-00 / LAM ASSY PORTESCAP MOTOR DC 23GST2R82 ENC ME22 LINEDRV / LAM

AHA-1542CF / PCB BOARD CSI ISA / ADAPTEC

3700-03759 /O-RING ID 18.955 CSD .210 KALREZ 8085 KALREZ/ APPLIED MATERIALS AMAT

5866RC1A1C4R2VA / FS FLOW RATE, 3 SLPM, 5866RT SERIES / BROOKS INSTRUMENTS

FC-280S / MASS FLOW CONTROLLER MFC N2 500 SCCM / MYKROLIS

HCC15-3-A / CONVERTER OUTPUT -12 VCD AT 3.4AMP OR -15VCD AT 3AMPS / POWER ONE

0140-75265 / GND H/A, UPPER SUB-PANEL PHASE II CONTRO / APPLIED MATERIALS AMAT

GEPI-001 / CNCT.  PCN1 PCN2 NFB1 PCN3 NFB2 PCN4 NFB3 PCN5 / DNS DAI NIPPON

HA400 / TEMP. FC1/A CONTROLLER, 100 TO 240VAC, 12 VA/17VA / TORAY

HB-10101AF / SUPER HIGH PRESSURE MERCURY LAMP POWER SUPPLY / NIKON

HB-10101AF / SUPER HIGH PRESSURE MERCURY LAMP POWER SUPPLY / NIKON

7-39-05583 / SENSOR TR SEND LT-110A25V-SV / DNS DAI NIPPON SCREEN

MSDA013A1A / PANASONIC AC SERVO DRIVER / PANASONIC

MSDA013A1A / PANASONIC AC SERVO DRIVER / PANASONIC

102944-010 / PCB, A2, MOTION CONTROL CXE / ELECTROGLAS

0242-49569 / KIT, H2O CHAMBER CONNECTIONS NO TURBO SICONI / APPLIED MATERIALS

MPS-D4M5-GHA-D4 / VACUUM SENSOR SK2000 COAT DEVEL. AL16-A 3-PIN / CONVUM MYOTOHU

0240-23718 / KIT PUMP CB-20 AMP / APPLIED MATERIALS AMAT

03-042622-01 / CABLE ASSY,PWR,TRBO,BLZ,LT,SPD / NOVELLUS

0021-39883 / OUTPUT MANIFOLD, TXZ CIP / APPLIED MATERIALS AMAT

379123-001 / SWITCHING POWER SUPPLY / HP

4178-6VU / LAPTOP / LENOVO

ST260 / KURODA VALVE,SOLENOID,DOUBLE,3 WAY,24VDC,2POS,SEMIX ST-260 / SEMIX

 PH3/N2, 0.03 SLM / COASTAL IN