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

BQ3B030H - Siemens - 30 Amp Molded Case Circuit Breaker

BQ3B040 - Siemens - 40 Amp Circuit Breaker

BQ3B04000S01 - Siemens - 40 Amp Shunt Trip Circuit Breaker

BQ3B045 - Siemens - 45 Amp Circuit Breaker

BQ3B050 - Siemens - 50 Amp Circuit Breaker

BQ3B060 - Siemens - 60 Amp Circuit Breaker

BQ3B070 - Siemens - 70 Amp Circuit Breaker

BQ3B070H - Siemens - 70 Amp Molded Case Circuit Breaker

BQ3B080 - Siemens - 80 Amp Circuit Breaker

BQ3B090 - Siemens - 90 Amp Circuit Breaker

BQ3B100 - Siemens - 100 Amp Circuit Breaker

BQD170 - Siemens 70 Amp 1 Pole 277 Volt Bolt-On Molded Case Circuit Breaker

BQD2100 - Siemens - 100 Amp Molded Case Circuit Breaker

BQD270 - Siemens - 70 Amp Molded Case Circuit Breaker

BQD280 - Siemens - 80 Amp Molded Case Circuit Breaker

BQD290 - Siemens - 90 Amp Molded Case Circuit Breaker

BQD320 - Siemens - 20 Amp Molded Case Circuit Breaker

BQD330 - Siemens - 30 Amp Molded Case Circuit Breaker

BQD340 - Siemens 40 Amp 3 Pole 480 Volt Bolt-On Molded Case Circuit Breaker

BQD350 - Siemens 50 Amp 3 Pole 480 Volt Bolt-On Molded Case Circuit Breaker

BQD360 - Siemens - 60 Amp Molded Case Circuit Breaker

BQD370 - Siemens - 70 Amp Molded Case Circuit Breaker

BQD380 - Siemens 80 Amp 3 Pole 480 Volt Bolt-On Molded Case Circuit Breaker

BQD390 - Siemens 90 Amp 3 Pole 480 Volt Bolt-On Molded Case Circuit Breaker

BQD6215 - Siemens - 15 Amp Molded Case Circuit Breaker

BQD6220 - Siemens - 20 Amp Molded Case Circuit Breaker

BQD6320 - Siemens - Circuit Breaker

BQD6340 - Siemens - 40 Amp Molded Case Circuit Breaker

BQD6350 - Siemens 50 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker

BQD6360 - Siemens 60 Amp 3 Pole 600 Volt Bolt-On Molded Case Circuit Breaker

BQGF250 - Commander 50 Amp 2 Pole Bolt-On GFCI Circuit Breakers

BQL2100 - Commander 100 Amp Circuit Breaker

BQL2125 - Commander 125 Amp Circuit Breaker

BQL290 - Commander - Circuit Breaker

BQL3100 - Commander 100 Amp Circuit Breaker

BQL315 - Commander 15 Amp Circuit Breaker

BQL320 - Commander 20 Amp 3 Pole Bolt-On Circuit Breaker

BQL330 - Commander 30 Amp 3 Pole Bolt-On Circuit Breaker

BQL340 - Commander 40 Amp Circuit Breaker

BQL350 - Commander 50 Amp Circuit Breaker

BQL370 - Commander 70 Amp Circuit Breaker

BQLT-15-215 - Commander - 15 Amp Quad Circuit Breaker

BQLT-15-220 - Commander 15/20/20/15 amp Quad Circuit Breaker

BQLT20 - Commander Tandem 20 Amp Bolt-On Circuit Breaker

BQLT-215-215 - Commander Quad 15/15/15/15 amp Bolt-On Circuit Breaker

BQLT-215-240 - Commander Quad 15/40/40/15 amp Bolt-On Circuit Breaker

BQLT-220-220 - Commander 2 20 Amp Quad Circuit Breaker

BQLT30 - Commander - 30 Amp Tandem Circuit Breaker

 BR Automation 7AO352.70 Analog Output 7A035270VAI

BR Automation 7AO352.70 Analog Output 7A035270VAI

BR Automation 8MSA4M.E1-30 servo motor

BR250SUR - Eaton - Surge - Protector

Bradman-Lake Touch Panel     

Bradman-Lake Touch Panel

BRANKAMP CMS1K 24DC CONTROLLER SYSTEM MODULE

Branson 1732-B-58855 Rev.F Control Board

BRANSON 2000AEJ/SMC AF20-02B/CDQSKB12-10DM-A93S

Branson 2000DPS 40:0.8 Ultrasonic Power Supply  1251321621

Branson 2000DPS 40:0.8 Ultrasonic Power Supply 1251321621

Branson 8500 Series Advanced Ultrasonic Oscillator S8580-24

BRANSON 900MA  ULTRASONIC WELDER POWER SUPPLY 101132267

BRANSON 900MA  ULTRASONIC WELDER POWER SUPPLY 101132268

BRANSON 947MAs 940MA ADVANCED ULTRASONIC POWER SUPPLY UNIT   

 Branson PGA 4 MF  

Branson PGA 4 MF

Branson Ultraschall M-S5555 W/ QTY 4 6 CHANNEL RFS

Branson Ultrasonic Welder Powered Welding Head Unit

BR-Automation 0GH-DI426 Input Modules (S3, L3)

BR-Automation 0GH-PS740 Input Modules (S3, L3)

BR-Automation B&R | 2AO300.6 |Output Module

 BRAY 92-0630-11305-532 ACTUATOR UNIT   

BRCAF115CS - Eaton - AFCI Circuit Breaker

BRCAF120CS - Eaton - AFCI Circuit Breaker

Bresser LCD digital microscope LCD Micro 3.5 inch liquid  lens  AVA

Bresser LCD digital microscope LCD Micro 3.5 inch liquid lens  AVA

Brevetti Stendalto M309 200 Flexible Drag Chain Cable Carrier 6"W 2.75"H 18'9"L

BRH2100 - Eaton - 100 Amp Molded Case Circuit Breaker

BRH2110 - Eaton - 110 Amp Molded Case Circuit Breaker

BRH2125 - Eaton - 125 Amp Molded Case Circuit Breakers

BRH220 - Eaton - Molded Case Circuit Breakers

BRH230 - Eaton - Molded Case Circuit Breakers

BRH235 - Eaton - Molded Case Circuit Breakers

BRH240 - Eaton - Molded Case

BRH250 - Eaton - Molded Case

BRH270 - Eaton - Molded Case Circuit Breakers

BRH280 - Eaton - Molded Case Circuit Breakers

BRH315 - Eaton - Molded Case Circuit Breakers

BRH320 - Eaton - 20 Amp Molded Case Circuit Breaker

BRH330 - Eaton - 30 Amp Molded Case Circuit Breakers

BRHH2100 - Eaton - 100 Amp Molded Case Circuit Breaker

BRHH2110 - Eaton - 110 Amp Molded Case Circuit Breaker

BRHX2125 - Eaton - Circuit Breaker

BRIDGE 90033611 3624 MAINSTREET NETWORK INTELLIGENT T1 CHANNEL BANK  NOS

BRIDGE 90033611 3624 MAINSTREET NETWORK INTELLIGENT T1 CHANNEL BANK  

BRIDGE 9R057512/A 3612SE MAINSTREET NARROWBAND MULTIPLEXER NOSFREE SHIP

Bridgeport Controls A022483 CDB Control Board

Brinkmann 3SFT450/300-61 Immersion Pump 158GPM 3400 RPM 2.2kW 200V 2-1/2" Ports

Brinkmann Pump ZS090100-MF+250 Immersible Coolant Pump 3HP 460V 3400RPM *REBUILT

Brinkmann SFT450/300-61X Immersion Pump 158GPM 3400 RPM 2.2kW 200V 2-1/2" Ports

BRN115EP - Eaton - 15 Amp Molded Case Circuit Breaker

BRN120EP - Eaton - 30mA GFEP Breaker

BRN230GF - Eaton - 30 Amp GFCI Circuit Breaker

BRN240GF - Eaton - 40 Amp GFCI Circuit Breaker

BRN250GF - Eaton - 50 Amp GFCI Circuit Breaker

Bronze Graphite Wear Plate 3"W x 3/4"x 40"L Slide Bearing Wear Way

BROOKFIELD DV-III ULTRA PROGRAMMABLE RHEOMETER

Brooks 5850TR FA2C102 Mass Flow Controller 0-3 IN/MIN Air Pneumatic

BROOKS 5866RB1A1C4R2VA Mass Flow Controller  

Brother B5211382 Communication PCB Board

BROTHER B521J19-1 CIRCUIT BOARD

BROTHER B52J007-100B CIRCUIT BOARD

  BROTHER GF15N060-BMRF2C

BROTHER GF15N060-BMRF2C

BROTHER HF18T080-BMRG2AX MOTOR

BROTHER TAPPING CENTER NC BOARD B52J070-2  MINT CONDITION

Brown & Sharpe 6"x18" Rectangular Permanent Magnetic Block Chuck 3.5" Height

BROWN & SHARPE 80-410-120 ISOLATED I/O BOARD / 80-410-119/A

Brown & Sharpe Circuit Board 80-106 80-120 _ 80-187

Brown & Sharpe Model 111 Hydraulic Gear Pump 3GPM 600 RPM 1/2"npt 230/460V Motor

Brown & Sharpe Model 111 Hydraulic Gear Pump 4GPM 600 RPM 1/2"npt 230/460V Motor

BROWN&SHARPE 180193CE REMOTE PENDANT  

Browning 0cbn20202SB622MT1803 Inline Gear Motor 22:1 Ratio 208-230/460V 3Ph

Browning 207TAP-H TorqTaper Speed Reducer Torque Arm Kit Shaft Mount Gearbox

Browning 375C1-LR50FE 8701 50:1 Gearbox Reducer 2.3Hp 35rpm 143/145T Dual Shaft

Browning 4C98R 4-Groove Pulley Sheave Sz C V-Belt Split Taper R1 Bushing

Browning 5MVP40B54X 1-7/8 5-Groove Variable Pitch /Speed Pulley Sheave A-B Belt

Browning CBN2025B622.40MT1803 Inline Gear Motor 22.4:1 Ratio 208-230/460V 3Ph

Browning TU900 2-15/16" Bore Eccentric Take Up Roller Bearing

 Broyce Control Relay Type B1RF

Broyce control relay type B1RF

 Broyce control relay type B1SRF

 Broyce Control Relay Type B1SRN