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

Beckman Coulter 01-007904A / 7904A AY Mixer Belt Tension

Beckman Coulter 01-010916-2 / 109162 Motor Reagent Drive Z

Beckman Coulter 01-012342-2 / 123422 Wash Valve Motor

Beckman Coulter 02-010106-1 / 101061 Rotor / Valve

Beckman Coulter 09-007883-1 / 78831 3-Way Solenoid Valve Assembly

Beckman Coulter 09-012410-1 / 124101 3-Way Solenoid Valve

 BECKMAN INDUSTRIAL 400A DORIC 400A TEMPERATURE INDICATOR METER ONLY

 BECKOFF KL2702 SOLID STATE OTPUT RELAY

 BEDFORD 27-734-M9 LUBRICATOR 1/2" 150 PSI

Bega Concrete Protection Cover 524 Rough In Housing

BEI H25D-SS-CCW-8GC-7406R-LED-SM20-S ENCODER

BEI H25G-SB-2000-ABZC-8830-LED-ED25-S ENCODER

BEI Sensor Encoder H25D-SS-1000-AB-24V/OCR-SM16 / 01002-4754 Cancoppas

 BEI SENSORS H25D-SB-4096-ABZC-28V/5-SM18-S ENCODER P/N 01002-10551

Beiler DRK-15A 1-1/2" x 5/8" Seal & Bushing Kit

 BEKSX/9-03AHMOR 3" HIGH PRESSURE FILTER ELEMENT

 BELDEN 1000'FT COMMUNICATION CABLE 2-WIRE (WHITE/BLUE) 24AWG P/N 22208253

Belife Portable Folding Fan Rechargeable 4-Speed TM-520E

 BELIMO SPRING RETURN ACTIATOR B210 TF24-3 US B2TF0102

BELL & GOSSET MO918 3-13 1 1/2 HP 1725 RPM 1.75 AMPS MOTOR

  BELL & GOSSETT 30LBS SMPLEX RELIEF VALVE 3/4 INCHES

 BELL & GOSSETT ITT # 189129 BEARING ASSEMBLY

BELLOWS INTERNATIONAL L425-29221 SOLENOID VALVE

 BELLOWS/VALVAIR 1033 LBM0343L-115-60 SOLENOID PILOT VALVE

Belt Tensioner Assembly Goodyear 49209

 BEN AUTO LIFE P/N 200630 DIAPHRAGM B.A.L.13

 BENCHMARK V10-1P2P-1C-20 HYDRAULIC PUMP

Bendix 278599 Double Check Valve

Bendix K036010 Pintle Clamp Round Button Spares Kit

Bendix K129602 / K189602 Air Pressure Sensor 3-Pin w/ Flat Connector

Berco Roller Idler BC2531 BC2532 ID 2804 Roughly 8" Dia x 8-1/2" Width

Berkeley B10P4MS10231-03 Submersible Well Pump 1HP 10GPM 3-Wire 230V

 BERNSTEIN MAA-713-LKS FLOAT SWITCH

 BERNSTEIN MAK-2112-F-2 PROXIMITY SWITCH SENSOR 2-WIRE

Best 9K37AB15CS3626 9K Series Keyed Entry Door Lever Set Cylindrical Lock

 BETA B C1-V404M-S7B-S6-G1-X1 PRESSURE SWITCH

Betts 6238ALB 306 Style Normal Vent Aluminum w/ Buna-N Seal

Beyond Bright BEBR-OL1 / 19010 LED Garage Light 3-Panel 120VAC 60Hz 40W

Bezares 9019199 Lubrication Hose for PTO Allison 1000 / 2000 / 2400

 BIJUR DELIMON P/N 37632 ELECTRIC LUBE LUBRICATION PUMP 12V CAP-4LITERS

 BIJUR DELIMON SFX6PBSNNNDXC LUBE

 BIJUR DELIMON SM-DC 12/24 VDC CONTROLLER P/N 33346E

BikeMaster 197234 520 BMOR Sealed Chain 104 Link 520X104

BikeMaster 961261 96-1261 Standard Front Brake Pads for Polaris RZR 170 2014

Bikers Choice 492429 Fat Bob Style Ignition Switch replaces 370096

Bikers Choice 492979 Motorcycle Helmet Lock Universal Mount fits 7/8" to 1-1/4"

Billet Boys BB7035 LED Rear Tip/Brake Light for 96+ Harley Davidson

 BIMBA 092-NRLSC PNEUMATIC SOLENOID AIR CYLINDER 115V 2"STROKE 1-1/16" BORE

 BIMBA 092-NRSC PNEUMATIC SOLENOID AIR CYLINDER 120V 2" STROKE 1-1/16" BORE

 BIMBA 176-DBZ AIR CYLINDER

 BIMBA 50-150-DU AIR CYLINDER

 BIMBA CEF-01486-A AIR CYLINDER

 BIMBA CFO-07879A AIR CYLINDER PANCAKE

 BIMBA CYL-10325523 AIR CYLINDER 2" BORE 1.5" STROKE 250 PSI

 BIMBA EFDT-3295-EMX PNEUMATIC AIR CYLINDER

 BIMBA ETS-1265-EMV LINEAR THRUSTER CYLINDER

 BIMBA FLAT-1 FO-709-1 PNEUMATIC CYLINDER

 BIMBA M042/2-DXPT2 AIR CYLINDER

 BIMBA PNEU-TURN PT-006180-A1B1V ROTARY CYLINDER-ACTUATOR

 BIMBA SR-3113-DQ AIR CYLINDER

 BIMBA TB-1620-EX AIR SLIDE CYLINDER

 BIN MASTER BINMASTER 416-0481 C3 CABLE REPLACEMENT KIT 50'FT STAINLESS STEEL

  BINDER 86-011-09AA1 PERMANENT MAGNET SINGLE SURFACE BRAKE 24V

 BINKS 41-232 CLAMP BRACKET

 BI-TORQ QC-24VDC COIL SOLENOID VALVE P/N QC-SOL-4-24VDC

BK-05106-GF Bearing Kit GF  SEE PICTURES

BKI Calrod C0296 Heating Element w/ Screws 208V 1112W

BL 3420 Tapered Roller Bearing Set

 BLACK BOX ACU2009A CAT X KVM EXTENDER SERVO SWITCH COMPLETE

Black Roof Jack Base Refrigerator Vent + Screen for RV Camper Travel Trailer

Blackberry Storm 9530 Replacement Main Logic Motherboard PCB-17073-006

Blackstar E 1 15/16 Tapered Bushing

BlackStar E 2-1/4 STL QD Bushing

 BLADDER LID YELLOW BOX 11119597024 SPILL DECK BLADDER SYSTEM

Blanco 441091 3-1/2" Basket Strainer & Sink Flange Matte White

B-Line by Eaton Durablock 12359536 Support Block w/ Strut Channel

 BLOCK STABILLIERTE FMP-5S1000 POWER SUPPLY TRANSFORMER 115V

Blooming Wall Peel & Stick Textured Wall Paper Moonlight Forest White

Blower Motor and Wheel 00025-058399 / 20201364

Blue Flame Fireplace Log Lighter Natural Gas LLS.1626.NG

Blue Sea System 2105B 250A Maxibus 12 X 10-24 Common Bus

Blue Streak by Standard FD503 Ignition Coil for Ford Lincoln Mercury

Blue Streak by Standard UF502 Ignition Coil for Chrysler Dodge Volkswagen

Blue Streak MF21042N MAF Mass Air Flow Sensor for Ford Lincoln Mazda Mercury

Blue Streak MF8411N MAF Mass Air Flow Sensor for Cadillac Chevrolet GMC Pontiac

Blueair 100930 Particle Filter for Blue Pure Fan

 BLUE-WHITE F-40250LN-8 FLOWMETER .025-.250 GPM 1/2" NPT/FEMALE

BMW Key FOB / Keyless Entry Remote w/ Cut Key HUF5767 / 9 312 540-03

Bobcat 7270373 Tuned Weight

BODINE 34T3BEHY STEPPING MOTOR 115V

 BODINE 833 DC MOTOR CONTROL S/N833QE021 115V

BONITRON M3575R-H3M0 460VAC 3HP RESISTOR MODULE

Boostcontroller Boost Controller High Performance

BORG WARNER 90234 CLUTCH KIT

BORG WARNER 90238 POWER CLUTCH KIT

BORG WARNER 90257 CLUTCH KIT

Borg Warner BWD EGR Valve EGR1066

Boryli B075YHP6HH / XL-2100 Replacement Lamp w/ Housing for Sony TV's

Boryli BP96-01472A P132 DLP for Samsung Replacement TV Lamp Module

Bosch 0221604700 Ignition Coil for Ford Jaguar Land Rover Lincoln

  BOSCH 0-810-001-228 HYDRAULIC VALVE

 BOSCH 081WV06P1001KD115/60D51 SOLENOID DIRECTIONAL CONTROL VALVE 110/115V

 BOSCH 081WV10P1V1020WS115/60-D51 HYDRAULIC DIRECTIONAL VALVE 110/115V COIL

 BOSCH 0-820-023-507 SOLENOID VALVE (MISSING ONE COIL)

 BOSCH 0-820-024-610 SOLENOID VALVE DIRECTIONAL 24V COIL

 BOSCH 0-821-302-048 PRESSURE REGULATOR W/GAUGE 0821302048

BOSCH 107077767-105 107077995-102 PROFIBUS PLC BOARD

 BOSCH 1070914767-A42 BRAKE SHORT CIRCUIT

BOSCH 1070917943-202 INTERFACE KEYPANEL CIRCUIT BOARD

Bosch 1699200449 Accelerometer Sensor B Cable

Bosch 1699200552 Magnetic Mount for Measurement

 BOSCH 1-834-484-169 CYLINDER SWITCH ASSEMBLY CABLE AND CLAMP INCLUDED

Bosch 83460-2G000 Power Window Motor for Kia Optima 2006-2010

 BOSCH 9-810-161-156 PRESSURE REDUCING VALVE

 BOSCH ASC400-C1D.3420 ASC AC ADJUSTABLE FREQUENCY INVERTER 5HP

 BOSCH B-LP BM-DP12 PROFIBUS CONTROL BOARD MODULE 1070075887-303

 BOSCH B-LP DP-EA4 PROFIBUS CONTROL BOARD MODULE 1070077504-203

Bosch Cooktop 671585 / 709375 PC Board

Bosch Cooktop Induction Hotplate 673377 Cover 607314 602160 Sensor 612909

 BOSCH DESI20-K-DP 16A/2.0A DIGITAL OUTPUT MODULE

 BOSCH DESI20-K-DP 32E DIGITAL OUTPUT MODULE 1070918396

 BOSCH DP-EA4 PROFIBUS MODULE 1070077504-202

 BOSCH EG2/K RACH EG2/K-4 4 MODULES EG/K4

 BOSCH FF1-SH-MH-01-H-50 HYDRAULIC FLOW CONTROL VALVE 9-810-161-089

Bosch Induction Hotplate 00673501 673501 for Electric Range Cooktop + Sensors

Bosch Microwave Connector Harness 492655 Power Cord Accordion 492657 Hardware

Bosch O2 Oxygen Sensor F 00H L00 093 / F00HL00093 for Chrysler Jeep Cherokee

 BOSCH R902455818 PUMP CONTROL VALVE ZDRVA10-280+1

 BOSCH REXROTH 0-811-150-233 PRESSURE REDUCING VALVE 3000 PSI MADE IN FRANCE

 BOSCH REXROTH 1070918479 DRIVE UNIT NETZFILTER 3X480V/80A

Boston CSC75-16 / 49249 Steel Threaded Collar One-Piece Split 3/4"-16 ID

  BOSTON GEAR 20:1 SPEED REDUCER