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。

APPLIED MATERIALS AMAT HARNESS ASSY J31 0140-62435

DIGITAL EQUIPMENT CORP DEC DALLAS 94V-1 DIGITAL BOARD VT100 M8045 5013128DP1

AIR PRODUCT GAS GUARD PCB BOARD CONTROLLER DISPLAY P/N CRSD-1044 REV B1

YASKAWA SERVOPAK AC SERVO DRIVE MODEL SGDM-A3ADA-RY769-E

GRANVILLE-PHILLIPS MKS INSTRUMENTS ION GAUGE CONTROLLER MODEL 352 REV. C

CELERITY IT UFC-8565 MASS FLOW CONTROLLER MFC C-SEALS DEVICENET

TEL TOKYO ELECTRON TPB-SA.VO UL94V-0 PCB

TOKYO ELECTRON TEL PCB BOARD TYB517-1/IOAS-LF 2L81-050065-V1

YASKAWA AC SERVO MOTOR SGMAS-A5A2A21

FISHER SCIENTIFIC EHS IH 016 HOT WIRE ANEMOMETER/THERMOMETER T66481

AMAT APPLIED MATERIALS 0150-00276 CABLE ASSY REM RECIPE

VEXTA STEPPING MOTOR 2-PHASE PH268-23

DIGIBOARD DBI PCB 30000354 REV N SERIAL ADAPTER CARD

APPLIED MATERIALS AMAT PCB CDN491 0190-04457 REV 001 DIP-075-405

AMAT APPLIED MATERIALS 0100-00049 ANALOG SIGNAL CONDITIONER PCB

OPTICAL SPECIALTIES 03-06942-00 VLS-I INTERFACE BOARD

FUSHIMAN PRESSURE REDUCING VALVE, P100-2Y

LS AC SERVO DRIVE 200-230V 3PH X MOTION L7PA010U-SI5

LS X MOTION AC SERVO DRIVE L7PA010U-S15

MKP TSC-L230 MASS FLOW CONTROLLER

APPLIED MATERIALS AMAT PRODUCER CHAMBER K INTERLOCK 0150-32798

HORIBASTEC DIGITAL MASS FLOW MODULE 10000 SCCM N2 SEC-Z714AGX

HORIBASTIC DIGITAL MASS FLOW MODULE GAS N2 300SCCM SEC-Z714AGX

HORIBASTIC DIGITAL MASS FLOW MODULE 10000 SCCM N2 SEC-Z714AGX

AMAT 0190-33704 FLOW SENSOR LFU20-1601-DAN-00243

LAM RESEARCH AIR LIFT CYLINDER 715-007595-004

FUJIKIN P7000D MASS FLOW CONTROLLER FCSP7002DW-4CW2-F400-02

SWAGELOK 316L-8-VCO-1A6 1 LOT (10 ITEMS PER LOT) RING FACE SEAL FITTING

LEICA MICROSCOPE OBJECTIVE PLAN FLUOR 50X/0.80 EPI IK INFINITY/O

MATRIX 105 MNM-49 GRID SILICON 150MM

LAM RESEARCH 810-802902-006 MOTHERBOARD NODE 2 PM PCB

AGILENT TECHNOLOGIES MID BUS PROBE MODULE E2941B

SMC SOLENOID VALVE BLOCK WITH THREE MODEL VQ4201-51 VALVES, CONTROL BLOCK

AMAT APPLIED MATERIALS 0190-04457 REV 02 CDN491 DIP-146-610 PCB SLOT CARD ASSY

MITSUBISHI CIRCUIT BREAKER ADJUSTABLE 100-200 500mA NV630-SEW

HORIBASTEC GR-314F MASS FLOW CONTROLLER RANGE 13.33KPA FLOW RATE HE 50SCCM

MKP TSC-SERIES MASS FLOW CONTROLLER CH4 GAS 25.001PM TSC-130

APPLIED MATERIALS 0150-02653 CABLE ASSY LTESC STANDARD WIDEBODY W/C ENDURA

MKS BARATRON CAPACITANCE MANOMETER 100 TORR 626B12TBE

NIKON SE PG-06 PRINTED CIRCUIT BOARD FOR STEPPER SCANNER

COMET CVDU-650EC/5-DEFZ VARIABLE VACUUM CAPACITOR 8-650PF 5/3KV

AMAT 0190-84052 ETHERCAT FIBER OPTIC TEMPERATURE SENSOR INPUT

INFICON 3CA3-A5D-0100 CDG020D 20 TORR 4-VCR FEMALE 9DSUB S-NO:0540022162

ORIENTAL MOTOR PK543AW-H100S STEPPING MOTOR

MKP TSC-SERIES TSC-L230 CH4 50SLPM LNG MFC

LASER IDENTIFICATION SYSTEMS PCB SCAN SEQUENCER 345570 REV B

BROOKS INSTRUMENTS GF120C-896279 THERMAL MASS FLOW CONTROLLER N2O 25000SCCM

FUJIKIN MASS FLOW CONTROLLER P7000D PN 4CW2-F200-CL2

ASML CPM-P20 CONTROLLED POWER MODULE 6001-0202-2801 PRODRIVE

BLACK  LES402A INDUSTRIAL ETHERNET SERIAL SERVER

ASML POWER AMPLIFIER PCB 4022.428.1556 FOR PAS 2500/5000 WAFER STEPPER SYSTEM

HORIBA ADVANCED TECHNO HF-960M-400 24V DC 10W

BOC EDWARDS D02187000 APG-MPB-15V-NW16 HIGH VACUUM ACTIVE PIRANI GAUGE

AMAT APPLIED MATERIALS 0100-00547 AC DISTRIBUTION ASSY SCHEM REF 0130-00547

ALLEN-BRADLEY 140G-G2C3-C30 CIRCUIT BREAKER 3POLE IT

FUJIKIN MASS FLOW CONTROLLER P7000D PN FCSP7002DW-4CW2-F65-CH3F NIB

UE PRECISION SENSORS E36W-H42 ABSOLUTE PRESSURE SWITCH 550 TORR 1 AMP

ASTRODYNE TDI SWITCH MODE POWER SUPPLY EMI FILTER SE50 F 50 AMP 125/250V 50/60Hz

WOT ICU-P201 CONTROLLER

FUJIKIN MASS FLOW CONTROLLER P7000D PN PCSP7002DW-4CW2-F13-CH2F2

FUJIKIN FBSDV-6 35-2B3-316LP-BGC DIAPHRAGM VALVE

APPLIED MATERIALS AMAT SCREW CH HD MS/ZP M2 5X12MMLG 3690-90015 PACK OF 1852

LAM RESEARCH 715-330896-004 REV B/ REV A RF CONNECTOR 853-800749-007

SWAGELOK DIAPHRAGM  VALVE 1/4" 6LVV-DPFR-P

PARKER VERIFLO 955AOPLPNCSFSFF2.78 DIAPHRAGM VALVE 43900647

PHILLIPS MICRO INDUSTRIES PCB BOARD, P/N: 9700314-0007D

BROOKS AUTOMATION TECHWARE SYSTEMS BRD-PAL-AI16S-K REV K

CELERITY IN 3XP MASS FLOW CONTROLLER N2 RANGE 30001-55000 XAXGDD0W1

SMC SQ1130NY-5-C4 VALVE BANK 11 PIECE VALVE KIT

SMC VALVE BANK WITH 9 PIECE VALVE KIT

AMAT PLASMA DETECT RTP MICROWAVE ASSY NO.0100-03208 FAB NO.0110-03006

FUJIKIN P7000D MASS FLOE CONTROLLER FCSP7202DW2-4CW2-F160-D1 H2

BRUSHLESS MOTOR DRIVER BXSD400-C2-K1 400W IP20 AMAT 1080-02175 FOR

BROOKS INSTRUMENTS SLA7950S1UGG1D2E1 SMART MASS FLOW CONTROLLR 10 SLPM AR

EATON 3 CYRO REMOTE SWITCH 5990-0028-0001 REV A

APPLIED MATERIALS AMAT CABLE ASSY 0150-28525

VERTEQ PC BOARD C1062910-1 SYNTHESIZER CARD REV E

PERKIN ELMER 644-0956-003 PCB BORAD ASSY 644-3377-003

ADVANET INC. COMPACT PCT AGPCI 7503 ADPMC 1548 PCB BOARD P/N:4S015-319

MATROX GRAPHICS CONTROLLER PCB F7197-03

AMAT APPLIED MATERIALS DETECTOR MODULE 0090-A9871 ASSEMBLY PMT-100

NATIONAL INSTRUMENTS 186055J-01L CCA PXI-5600 POWER CONTROLLER

AMAT APPLIED MATERIALS PHASE AND MAGNITUDE DETECTOR BD ASSY 0100-09302 REV 001

TOKYO ELECTRON SR012-013226-1 CKD SOLENOID VALVE N4E0-ER W/ N3E0660-M BLOCK OF 6

PHILLIPS PE 1268/00U 85 VA 9415 012 68001

PHILLIPS PE 1269/00U 85 VA 9415 012 69001

CELERITY IT 125 IFC-125C MASS FLOW CONTROLLER N2 2600SCCM 0190-28962-03

PHILLIPS PE 1267/00U 75 VA 9415 012 67001

RVSI 53200 REV. A PCB BOARD

HEINZINGER 4022.428.1984 NCES 10.000-3 NEG 220 VOLTS 50 Hz

FUJIKIN P7000D WR MASS FLOW CONTROLLER PN CSP7002DW-4CW2-F400- NIB

UE PRECISION SENSORS E36W-L50 ABSOLUTE PRESSURE SWITCH 550 TORR

SANYO HARMONIC DRIVE SYSTEMS INC. CSF-11-50-IU-CC-SP 1/50 SANYO DENKI

SMC NP420-DN1 SERIAL INTERFACE IT

CKD PNEUMATIC SOLENOID VALVE BLOCK N3E0660-M 4 ITS 24VDC

MILLIPORE FLUOROGARD PLUS CWFG01PLV

ENTEGRIS FILTER IMPACT 2-DUO 10NM OF KALREZ ADT200K1

APPLIED MATERIALS AMAT LLA LOADLOCK CABLE ASSEMBLY 0140-28020

POWERPACT HD 060 CIRCUIT BREAKER 15 A

TEKTRONIX LOGIC ANALYZER CABLE 012-1661-00

YOI LCD MONITOR YLM-15SC-T 85-264VAC 50/60 HZ JAE TOUCH PANEL MONITOR

SAMSG SERVO DRIVE CSD-02BB1P 200W FARACON CNC ROUTER

SAMSG SERVO DRIVE CSD-A5BB1P 50W-P FARACON CNC ROUTER DAINIPPON SCREEEN DNS

YASKAWA SERVOPAK SGDH-01AE-N3Y900 200-230V 50/60HZ

SSAC INC THREE PHASE VOLTAGE MONITOR WITH 10 FAULT MEMORY WVM611AL

BARRY SYSTEMS ISOLAIR PNEUMATIC CONTROL ANTI VIBRATION CONTROL SYSTEM SL21-6

NIKON STEPPER SCANNER 4S007-014 PCR LED PCB

WATKINS-JOHNSON CO. 901103-001 RS422 TO RS232 ISOLATOR

SMC PF2W511-N10-2 WATER FLOW SWITCH FR 10~100L/MIN DC12~24V

VARIAN DOOR RELAY ASSEMBLY BES-10141-01/VARIAN E11405930

ADEPT TECH VGB 3 ROBOT JOINT INTER MODULE PCB 10332-10250 REV. P8

ADEPT TECH VGB 3 ROBOT JOINT INTERFACE MODULE PCB 10332-10250 REV. P8

ORIENTAL MOTOR VEXTA 6802-DG60M HOLLOW ROTARY ACTUATOR

CELERITY MASS FLOW CONTROLLER MODEL DSSGD1XW FOR N2 GAS 859-2188SCCM

YASKAWA SERVOPACK CACR-PR03AC3ER 200V AC SERVO DRIVE 1CN 2CN WITH ALARM

SMC DIGITAL PRESSURE SWITCH ZSE80F-A2L-B-M

CKD VALVE AMD522-25BUP-20-6-4 MIN 0-0.3MPa OPERATE 0.3-0.5MPa ORIFICE 20  IN

FUJI SEIMITSU DENKI EC SENSOR WITH CABLE SCP=2AT-1

THERMAWAVE OPTI PROBE 18-020839 ARRAY BRACKET

ASML ELFT POWER SUPPLY 220VAC MODEL SO43 4022.430.192981 FOR PAS 2500/5000

APPLIED MATERIALS AMAT KIT CHAMBER MOTING ACPII 300MM DPN/ 0242-47348

URAKAWA 370208 ISOLATING TRANSFORMER ZTN 38X60 36271 CLASS E INSULATION 1.67A

APPLIED MATERIALS AMAT SPILL SENSOR HEATER CONTROL 0100-03012

SVG SILICON VALLEY GROUP 600052-01 REV 9 RAM PCP BOARD ASSY 101154-01

VAT CV 200-250V TEMPERATURE CONTROL IT HEATER SENSOR CONTROLLER

NIKON 23088-1 PCB BOARD ASSEMBLY

ARC ADVANCED FLOW CONTROLLER MODEL MP-FCH-E2000M-047 400-2000mL/MIN 24VDC

TOKYO ELECTRON TEL CABLE ASSY KH59-00683-A-6, P/N:CT2941-000030-12

IPITEX LUMITHERM 2000 FIBER OPTIC CABLE

APPLIED MATERIALS AMATSCREW DX2, ALUM PUMPING PLATE SACVD, 0021-14670 LOT OF 17

VEXTA ORIENTAL MOTOR DRIVE, 24V-DC, ASD12A-CCC

SMC TEL MODIFY KIT WITH SMC VALVES ECE-202825 2L87-093014-11 VR51-C06 SYJA512