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

Allen-Bradley 2711P-T12C4D2 PanelView Plus 1250 Ser A Rev H 24VDC 70W

Allen-Bradley 2711P-T12C4D2 PanelView Plus 1250 Ser A Rev J 24VDC 70W

Allen-Bradley 2711P-T12C4D2 PanelView Plus 1250 Series A 24VDC 70W

Allen-Bradley 2711P-T12C4D2 PanelView Plus 1250 Series A SCREEN DAMAGE

Allen-Bradley 2711-T10C15 Ser. C Rev. B FRN.4.10 PanelView *COS SCRATCH*

Allen-Bradley 2711-T10C15X PanelView 10.4" Touchscreen (NO BACKING) AS IS

Allen-Bradley 2711-T10C15X Panelview 1000 Ser B

Allen-Bradley 2711-T10C15X PanelView 1000 Series D Revision C Frn 4.46

Allen-Bradley 2711-T10G20 PanelView 1000 Operator Panel Series C 100-240VAC

Allen-Bradley 2711-T10G3 Panelview Operator Terminal Ser B *Screen Damage*

Allen-Bradley 2711-T5A16L1 Ser B Rev.B FRN.4.14 Panel SCRATCHED SCREEN

Allen-Bradley 2711-T5A16L1 Ser.B Rev.B FRN 4.14 Panel AS IS

Allen-Bradley 2711-T5A20L1 Panelview550 Operator Interface 24VDC

Allen-Bradley 2711-T5A2L1 Ser. B Rev.B FRN4.41 Panel *No Back Plate*

Allen-Bradley 2711-T5A3L1 Ser B Rev.B FRN.4.41 Panel *Rusted Terminal*

Allen-Bradley 2711-T5A3L1 Ser B Rev.C FRN.4.41 Panel *Rust on Terminal*

Allen-Bradley 2711-T6C8L1 Operator Interface Screen Broken 24VDC AS IS

Allen-Bradley 2711-T9A1 Series F Panelview Operator Interface AS IS

Allen-Bradley 2750-TSHU40P6 RF Tag Programmable for RFID System 5-Pk

Allen-Bradley 2755-L4FDA Medium Speed Handling Scanner

Allen-Bradley 2755-L5RDA Medium Speed Laser Scanner

Allen-Bradley 2755-L5RX5 Medium Speed Handling Scanner

Allen-Bradley 2801-YC Solid State CCTV Camera

Allen-Bradley 2801-YF Camera

Allen-Bradley 2803-VIM2 Vision Input Module 3A @ 5V DC SER A Rev B

Allen-Bradley 345A-8JZ1FN1AK3 Encoder Ser C

Allen-Bradley 350-TAV32 Ser C Reversing Drum Switch Size A

Allen-Bradley 38110-976-03 Digital Display Board

Allen-Bradley 40023-094-51 Power Distribution Terminal Block NO LUGS

Allen-Bradley 40382-226-51 Snubber Board 8 Mount

Allen-Bradley 41318-003A 5HP Driver Module C/W Powerlithic Module

Allen-Bradley 42336-172-52 PC Controller Board 1336-LB

Allen-Bradley 42CRC-4000 Ser B Color Registration Control *COS Scratch*

Allen-Bradley 42EF-D1MPAK-F4 Series A Photosensor 11-30VDC 500mm Range 5mA

Allen-Bradley 42FT-F2LPA-Y3 Fiber Optic Sensor Series A 3 Pin 12-24 VDC

Allen-Bradley 42QA-G5LE-N5 Photoswitch

Allen-Bradley 42SMR-7110-QD Ser B Red Trans-Beam Receiver 11-28VDC 1.2W NWB

Allen-Bradley 42SMR-7110-QD Trans Beam Receiver Ser B 11-28VDC 1.2W

Allen-Bradley 440J-N21TNPM-NP Ser A Safety Enabling Switch 2NC 1NO COS DMG

Allen-Bradley 440L Light Curtain Transmitter & Receiver 24V 6/9W

Allen-Bradley 440L Light Curtain Transmitter & Receiver 24VDC

Allen-Bradley 440L Light Curtain Transmitter & Receiver 5/8W 24V

Allen-Bradley 440L Light Curtain Transmitter and Receiver 24VDC 7W

Allen-Bradley 440L-T4B0450-N Light Curtain Transmitter 0.3-6m Range

Allen-Bradley 440L-T4J0320YD Light Curtain Transmitter 0.3-7m Range

Allen-Bradley 440N-G02023 Non Contact Safety Switch 230VAC 2A

Allen-Bradley 440N-Z18PT SensaGuard Standard Code Actuator *Sealed Bag* NWB

Allen-Bradley 440N-Z21S17A Non-Contact Switch 18mm 0.2A 3m Cable NWB

Allen-Bradley 440N-Z21SS2B Ser A Sensor w/10m Cable *No Actuator*

Allen-Bradley 440R-E23030 Safety Relay Single Channel 24VAC/DC

Allen-Bradley 440R-G23029 Series A Safety Relay w/Off Delay Time 24VACDC

Allen-Bradley 440R-G23216 Series A Safety Relay 24VAC/DC 50/60Hz 5W

Allen-Bradley 440R-N23132 Series C Safety Relay 24VAC/DC 50/60Hz 2W

Allen-Bradley 440R-P23071 Minotaur Safety Relay 24VDC SER A

Allen-Bradley 440T-MRPSE10 Panel-Mounted Rotary Switch 4NO 20A *Cos Dmg*

Allen-Bradley 442L-RA40930CBCD_A Light Curtain Receiver 0-19m Range

Allen-Bradley 45AS Light Curtain Emitter & Receiver BROKEN MOUNT

Allen-Bradley 500-CAC930 Ser B Enclosed Motor Starter 115-120V 60Hz

Allen-Bradley 500-DOD930 Top-Wired Contactor Ser A 110/120V 50/60Hz RUST

Allen-Bradley 500-DOD930 Top-Wired Contactor Ser A 110/120V 50/60Hz COS DMG

Allen-Bradley 500-DOD93-X4 Starter 110V 50Hz 115-120V 60Hz 3P 90A 600VAC

Allen-Bradley 500F-COD93-X14 Series A Manual Starter w/Manual Reset

Allen-Bradley 500F-DOD930-90011 Feed-Through Contactor Ser A MISSING SCREWS

Allen-Bradley 500F-DOD93-X4 Non-Reversing Starter 110V@50Hz 115-120V@60Hz

Allen-Bradley 500F-EOA930 Contactor 220-240V 3-Pole 135A

Allen-Bradley 500FL-D0D93 AC Contactor 100AMP 480VAC Max

Allen-Bradley 50347-001 Logic Board Rev G

Allen-Bradley 505-AOC Series C Starter 575-600V 60HZ

Allen-Bradley 505-AOD Series C Reversing Starter Size 0 115/120VAC 60Hz

Allen-Bradley 505-AOD-XXX Reversing Starter 110/120V Coil Missing Screws

Allen-Bradley 505-BJD Reversing Starter 27 Amp

Allen-Bradley 505-BOD Reversing Starter 600VAC

Allen-Bradley 505-BOD-17-90011 Reversing Starter DAMAGE + MISSING SCREWS

Allen-Bradley 505-BOD-17-90011 Reversing Starter Ser C w/ Surge Protector

Allen-Bradley 505-BOD-23-90011 Reversing Starter Ser C NO RELAY/COS DMG

Allen-Bradley 505-BOD-A5GA Reversing Starter Ser.C *MISSING SCREW*

Allen-Bradley 505-BOD-A5GA Reversing Starter Ser.C *MISSING WIRES*

Allen-Bradley 505-BOD-A5GA Reversing Starter Ser.C w/ Surge Protector

Allen-Bradley 505V-COD Starter 110V 50Hz 115/120V 60Hz MISSING HARDWARE

Allen-Bradley 509-AAC Non Reversing Starter Size 0 Type 1 550/660V 50/60Hz

Allen-Bradley 509-AAC Non-Reversing Starter Size 0 575V

Allen-Bradley 509-AAC-1 Series B Full Voltage Starter 575-600V 60Hz

Allen-Bradley 509-AJD-A1C Enclosed Starter 115-120V 60Hz 110V 50Hz

Allen-Bradley 509-AOC Series B Motor Starter 557-600V@60Hz

Allen-Bradley 509-BAC-6P Starter Size 1 600V

Allen-Bradley 509-BAH Enclosed Non-Reversing Starter 200-208V Size 1

Allen-Bradley 509-BOD-90 Non-Reversing Starter NO RELAY/RUST/MISSING SCREWS

Allen-Bradley 509-BOD-EC1A Motor Starter

Allen-Bradley 509-CAC Non-Reversing Starter Ser A 575-600V 60Hz 25HP

Allen-Bradley 509-COD Non-Reversing Starter Ser A 110/120V NO RELAY/RUST

Allen-Bradley 509-DAD Starter 90 Amp 120VAC

Allen-Bradley 509-DOC Starter 90 Amp 575-600V

Allen-Bradley 509-DOD-B1K Non-Reversing Starter 115-120V COSMETIC DAMAGE

Allen-Bradley 509-EOD Ser. A Non-Reversing Starter w/ Overload *Rust*

Allen-Bradley 513-AUB-3E-38 XP Breaker 3P 5A 600VAC

Allen-Bradley 520E-AOD Series C Starter 115-120V@60Hz 110V@50Hz

Allen-Bradley 520F-AOD-A2F-A2F Custom-Built Multi-Speed Starter 600V Ser W

Allen-Bradley 520F-AOD-A2F-A2F Custom-Built Multi-Speed Starter NO WIRES

Allen-Bradley 520F-AOD-A2F-A2F Custom-Built Starter MISSING RESET PAD

Allen-Bradley 5250-LP SER.A F/W REV.A03 Logic Processor Module

Allen-Bradley 5250-LP SER.A F/W REV.A04 Logic Processor Module

Allen-Bradley 5370-CVIM2BC Machine Vision Input Processor Series A

Allen-Bradley 592P-A1LD Overload Relay 690V 66/110A

Allen-Bradley 60-2728-1 Ser. A Photoelectric Sensor 24VAC/12VDC 30 Feet

Allen-Bradley 609-AAW Series H Manual Starter Size O 3Ph 200/230V

Allen-Bradley 609-BAW Ser H Manual Starter Size 1 10HP 200-575V 3PH

Allen-Bradley 609-BAW Series H Manual Starter Size 1 10HP 200-575V 3Ph

Allen-Bradley 609BEW Non-Reversing Manual Starter 3Ph Size 1 RUSTED SCREWS

Allen-Bradley 609-BJW Series G Manual Starter Pushbutton 3Ph 600 Vac

Allen-Bradley 609-BJW Series K Manual Starter 3PH 115-230VAC 60Hz.

Allen-Bradley 609T-BAW Manual Starting Switch Ser F 1-3PH 2-10A Size 1

Allen-Bradley 609U-AOXD Manual Starter SER G 110V@50Hz 115-120V@60Hz

Allen-Bradley 6180-DHHEFGDHEBZ Series B Industrial Computer *NO Power* AS IS

Allen-Bradley 6181-ACAAZZZZZ Operator Interface Panel

Allen-Bradley 6181P-15TS2K VersaView 1500P Integrated Display Computer

Allen-Bradley 6181P-17TP2KH VersaView 1500P Display Computer AS IS

Allen-Bradley 6181P-17TP2KHX VersaView 1500P Integrated Display Computer

Allen-Bradley 6185-AAACAAZ FA10 Panelview

Allen-Bradley 6185-CBZABZZ Panelview Operating Interface

Allen-Bradley 6186-M12ALTR Versaview 12" Touch Panel

Allen-Bradley 634275-9006 UBA Control Board

Allen-Bradley 634486-90 7300-UPG 8K Memory Circuit Board

Allen-Bradley 634488-90 7300-UPG Memory Control Board

Allen-Bradley 634489A-S-C 7300-UPJ PCB Control Board

Allen-Bradley 634490A-90 7300-UPK Circuit Board

Allen-Bradley 634951-90 UCQ Machine Control Board

Allen-Bradley 700DC-PK1200DZ24 Industrial Relay 24VDC 11NO 1NC MODIFIED

Allen-Bradley 700DC-PK1200Z24 Nema Control Relay 20A 24VDC

Allen-Bradley 700N-200AI 300VAC max 10A Type N Contact Relay Series UC

Allen-Bradley 700-N400A1 AC Relay 110/120V 50/60Hz Cosmetic Damage

Allen-Bradley 700-N400A1 AC Relay Series C 110/120V 50/60Hz

Allen-Bradley 700-NT400-A1 AC Relay Series C 110/120V 50/60Hz