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。

ikon STGX41B PCB 4S013-481

Applied Materials Arc Voltage PCB AMAT 0100-01884

Applied Materials Water Leak Sensor PCB AMAT 0100-20097

Brooks-PRI Sensor PCB 001-5227-01

Appied Materials Seriplex 2-slot Backplane AMAT 0100-09286

 as seen, need refurb... AMAT P5000 0242-13822

Applied Materials Retaining Ring Composite 8" Titan Head AMAT 0041-06947

Mass Flow Controller. Model: SEC-4500M

KLA-Tencor AIT 1 Aerotech Axis Module MX25-B

Tokyo Electron PRA X PCB TEL 2981-600409-11

KLA-Tencor 6200 VGA PCB 61-603316-02

Applied Materials HP Gas Interlock PCB AMAT 0120-00985

Applied Materials 300mm Centura Cable, EVC Male to Male , 75ft,AMAT 0150-06633

Applied Materials LCD Monitor 0040-48277 Amat 200mm endura/P5000 back monitor.

Applied Materials Insulator, Quartz 200MM, Simple Cathode AMAT 0200-10073

Tokyo Electron Board Conn BLT/L PCB TEL 2981-600534-11

MKS Type110 Pressure, MKS absolute pressure gauge Portable Baratron system

Karl Suss MicroTec UV Intensity Meter Model 1000

August Technology Corp Switch E-Stop PCB 704311

Brooks 5964 Mass Flow Controller 5964C2MAPW5KA WF6 750 SCCM 01-0624R-088

Fusion Systems Dual Cassette Handler Board Hitachi PCB 249141

August Technology Corp Handler Interface Board 706001

Brooks 5964 Mass Flow Controller 5964C2MAKV5KA Oxygen 2SLPM 01-0624R-033

Brooks 5964 Mass Flow Controller5964C2MAL15KA C2F6 2SLPM 01-0624R-037

Tokyo Electron DC/DC Converter Board PCB TEL 2981-600310-12

Honeywell MST Satellite XT 9602-0205

Applied Materials Turbo Interconnect PCB AMAT 0100-20051

Applied Materials Filter Low Pass AMAT 0190-09186

Nikon 4S288-177 Ntron 1100 02 Analyzer C7-01-1110-02-0

Omron E3L-2LE4-50 Photoelectric Switch

Applied Materials Rev A Balance Ring 300mm Quantum AMAT 0021-13421

Applied Materials 6" Door Slit valve AMAT 0020-32312

MININET MODEL 310 MINIENVIRONMENT PARTICLE MEASURING / MONITORING SYSTEMS (LARGE

Tylan General CDLD2106E Manometer

Advance Power NS240024 Power Supply 006906

Brooks-PRI ZR Axis Amp PCB BM06241

Applied Materials Opto Detect PCB AMAT 0100-00014

Applied Materials FTG T - Adapter Assy 3/4 TO 1/2 AMAT 3300-08287

Applied Materials Plate Blocker SX100 AMAT 0200-32036

Hitachi Chuck PS PCB CD-SEM S-8820 568-5532

Parker Hannifin Metering Valve 10xl 4V-NLL-V-SS-V

Lambda Dome Electrode Levelling 515-011835-001

Tokyo Electron TYB41C-1/GAS I/L PCB TEL 1D81-000128-11

Fluke 80i-1000S AC Current Probe

1  Fluke 80i-1000S AC Current Probe

High Yield Technology (division of Pacific Scientific) PM-250 controller

Applied Materials Dual Freq. wiring interconnect assy. AMAT 0110-09237

Applied Materials 300mm Centura Cable, EVC Male to Male , 75ft, 0150-06633

Nikon RTX4B1 PCB 4S013-488

Applied Materials Washer , Insulating, Esc AMAT 0020-31628

KLA-Tencor Interface Board 303737

DEC Vaxstation 4000 Cougar SPX PCB 54-21795-01

Applied Materials Low Profile Wafer Sensor Assy AMAT 0090-76078

Tokyo Electron PRA Z PCB TEL 2981-600410-11

Fusion systems UV Probe M-200-Z

Fusion Systems 8086 CPU Card PWB Assy 248411

OMRON CQM1-PRO01-E Programming Console

Millipore Tylan 260 Series Mass Flow Controller 400-SCCM

Teradyne AD206 PCB 879-206-00

Delqa Digital M7516 PCB 50-17646-01

Applied Materials TP Link Interlock PCB AMAT 0110-18058

Applied Materials Digital I/O Assy PCB AMAT 0100-11002

Axcelis Tech/AXCELIS TECHNOLOGIES 238401-001- Rev A M200PC CHUCK CONTROL

Applied Materials Contactor Interlock Board AMAT 0100-09104

Hitachi PS DISP PCB 568-5559

Applied Materials  Harness Ampule Refillable Level Sensors AMAT 0226--96762

PRI-Brooks SAMS I/O PCB BM23475L11

Heidenhain Corp Sync  IBV660B

Hokuyo DM-HA1 Optical Data Transmission, PCB AGV Interface Board SVG 99-80392-01

Millipore Tylan 260 Series Mass Flow Controller 150-SCCM

SVG Station CPU PCB 99-80266-01

KLA-Tencor DISTRIB1, SP1 PCB 373494

Leica PL Fluotar 2.5x0.07 Objective

Nikon Pre 2 Vac Arm

TE DC power supply HY3005f-3

RF plasma products amnps-2a controller

Olympus Microscope Objective MDPlan 150 0.95 IC150 KLA AIT 1

Applied Materials Modified N2 Dry Vac PCB AMAT 0226-30332

Tokyo Electron STP IF PCB 2981-600355-14

Nikon Double Depolarizer 4L991-229-4AN

Hewlett Packard Laxis HP PCB 10897-60002

Hitachi PM-02-1 PCB CD-SEM S-8820

Nikon STGX42B PCB 4S013-482

Yokogawa Insulation Resistance Tester MY40-01

Lambda Regulated Power Supply LIS-7I-15

Tokyo Electron C/S Stage PCB Act8 TEL 2981-600351-11

Austin Integrated stop valve manif and PCB AMAT P5000 BES-530-8S-PCB

Tokyo Electron NSK E043ZZIF1-002 PCB TIF Board TEL ACT12 200mm

Perkin Elmer DMC Booster Amplifier PCB SVG 851-9947-004

Advanced Energy PMH 13/300 Measurement Head 3152290-000

SVG Wafer Handler Interrupt PCB 879-8258-001

Varian Proteus Signal Conditioner Assy PCB E15000150

Applied Materials PCB Assembly Lvl Sensor Board AMAT 0110-09108

Applied Materials CDN491 PCB AMAT 0660-01879

Lam Research Stepper Motor Driver PCB 810-017016-001

Horiba-Stec Mass Flow Controller SEC-4400

KLA-Tencor 2135 Linear Actuator Assembly 655-652673-00 w/740-659653-00

KD Optics LED Source Ls10

Hitachi LANI-4 PCB

Power-PFC500-1024 Power Supply

Extech 412300A Current Calibrator  Meter Calibrates Process Devices

Cohu Camera Controller 6712-2000/0000

KLA-Tencor Bertan PMT-10C High Voltage Power Supply

Applied Materials Cable Assy Low-pass Fltr 24"LG Flex AMAT 0620-01207

Heidenhain Digitaler MeBtaster MT12

Precision Sensors Absolute Pressure Switch E36W-H42

Hitachi ILC4-1 PCB

IT PN: 9150-100001 Model: 5 UFM-9150 UFM-9150 range 6SLM He Mass Flow Meter

Edwards Barocel Pressure Sensor 100TR CAJON 8VCR W65531611

Fluke 80PK-8 Thermocouple Pipe Clamp Temperature Probe

 Fluke 80PK-8 Thermocouple Pipe Clamp Temperature Probe

KLA-Tencor 536237 Echelon PCLTA-10 73401 Adapter ISA Card 801-0260-01

Fluke 87 III True RMS Multimeter

3Fluke 87 III True RMS Multimeter

PRI Automation SYST IO ISOL RCVR 70003062 REV B

Tokyo Electron TYB512-1/IOMT PCB TEL 3D81-000067-V1

Nikon Power DC Power Supply CE-G1000837 HDBB-105W-A

Applied Materials Encoder Interface PCB AMAT 0100-09137

Airnet 301 Particle Measuring Sensor

Stec Mass Flow Controller SEC-4400

Millimore: CDLD-21S06_EMC CDLD2106E

Tokyo Electron 5 phase driver PCB Oriental Motor CSD5807N-P-A11

MKS Instruments Baratron Type 127 Pressure Transducer

SVG End Station CPU PCB 99-80333-01

Applied Materials Switch flow ctl, Non adjustable Gems FS-926 AMAT 0226-09014

Fluke 117 True RMS Digital Multimeter

 Fluke 117 True RMS Digital Multimeter

Edwards Barocel Pressure Sensor W65521611 10TR CAJON 8VCR

Millipore WCDS000F4 Dispense Controller S/N - PRI984054

Omron Mobile Console E3X-MC11-3

Edwards Barocel Pressure Sensor W65511611 1TR CAJON 8VCR