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。

以下链接皆有货

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Keyence CO2 Laser Marker ML-G9321 For Lence 676-B-M76

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Sprig N-2V-0 11-98 PCB Board 111872

Observator Rtterdam Magnetic Compass Repeater MRIV 760904

Avocent Switchview-100 4 Port KVM Switch

Lilaas LF120D-01-07 Thruster Double FWD Multipurpose Control Lever

Air Needle Scaler SA7306A IMI

Cavotec Micro-Control AS MC3-5 EX For MC-EX-CD-PLL-434

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Analox 5S Mk III A5S3ASH6G CO2 Sensor Transducer Highly Accurate Beam Infrared M

Nasa Marine Clipper V2 Wind Directional Speed Indicator Display

XipLink XA-500C TCP Accelerators

Roxar Flow Measurement Flare Gas Meter FGM 130 Transducer Board

Hernis Scan System A/S RX203 CCTV Serving Control Board PCB PLC Module IMI-955

Shimadzu LC-10ATvp HPLC Pump Liquid Chromatograph

Uzushio Electric UHS01-1103 PCB Circuit IMI

Uzushio Electric UHS01 PCB Circuit Board 1101

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Lumel LLM3-1L1000 Live Line Monitor

Symmetricom Network Time Server NTS–150 IMI

MSA 806559 MiniOX Gas Indicator

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Furuno 16P0088  16P0072 PCB Card IMI-687

HBC Radiomatic FSE 735 Wireless Crane Remote IMI

HLP Controls Single K Thermometer AZ8801

Scana MAR-EL A/S MEN-1 Dalen Control System

RDL ST-DA3 Line Level Distribution Amplifier IMI

Furuno 16P0065 PCB Card IMI-670

Drager Regard-1 Self Contained Single Channel Control System

Sperry Marine Gyro Compass Repeater DTR-600 IMI

Furuno 16P0088  16P0071 PCB Card IMI-748

Martindale TEK 300 Multi Function Calibrator

Scanjet RT168A DAT 02L Tankstar 260 Hydrostatic Level Transmitter

Suzhou Handa indistrial Automation China HT-413A

Debeg 8302 Brandmelde Zentrale MBS-802

Thrane  Thrane 403007C Sailor Mini-M Satellite Antenna IMI

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Clearflo CF-RAD-100 Anti-Fouling And Anti-Corrosion System 9905

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JRC PC1101 CMC-898 PCB Circuit Board H-7PCRD1398C PLC

Moog N123-139 PCB Module G1539-1

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SEISAKUSHO Co. Ltd. TAT3003 Electric Engine Telegraph For Marine Use

Danfoss APP21-26 Pistons 18069139

Norcontrol automation AS NA1008 HA 220447 A Operatori Pannello PCB Scheda 7586

Vander Velden Sterzo Cambio Controllo Pannello Sistema

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Mitutoyo JIS B 7502 Micrometro Prodotto IN Giappone

Center 310 RS-232 Umidità Temperatura Metro

Osaka MFL180S-1 Ricevitore Vento Indicatore Metro per Velocità

Moog N123-139 PCB Modulo G1539-1

HLP Controls Singolo K Termometro AZ8801

HBC Radiomatic FSE 735 Wireless Gru Remoto Imi

Biddle Instrument 220015-47 15KV Dielettrico Test Set

Sabre Mars PallRianimatore Adult / Child Over 20kg IMI-323

JRC PC1101 CMC-898 PCB Scheda Circuiti H-7PCRD1398C Plc

RDL ST-DA3 Linea Level Amplificatore DistribuziImi

Danfoss APP21-26 Pistoni 18069139

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Hanna HI-93502 Foodcare Lumberg Termistore Termometro

Suzhou Handa Indistrial AutomaziCina HT-413A

MSA 806559 MiniOX Gas Indicatore

Uzushio Electric UHS01 PCB Scheda Circuiti 1101

Jewell Instruments Shop-14.5L PrecisiAnello Inclinometro

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Furuno 16P0065 PCB Scheda IMI-670

Thrane  Thrane 403007C Sailor Mini-M Antenna Satellitare IMI

Scanjet RT168A Dat 02L Tankstar 260 Idrostatica Level Trasmettitore

Osaka MFL180S-1 Ricevitore Vento DireziMetro Per Naviration

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Saab Transpondertech Ab R3-AIS Transponder 24V ( P.No-7000 000-063)

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Telemecanique LAD8N11 Contatto Blocco

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Air Needle Ablatore SA7306A IMI

Furuno 16P0088  16P0071 PCB Scheda IMI-748

Symmetricom Rete Tempo Server Nts – 150 Imi

Nasa Marine Clipper V2 Vento Direzionale Velocità Indicatore Display

Woodward Spm Sincronizzare F8271-609 115-230VAC IMI-922

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