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

General Electric CCB Style 2 400A 277/480 3 Phase 4 Wire Panelboard

GENERAL ELECTRIC CIRCUIT BREAKER 0166A4131-63XY AK2-15-2 225A 600V 3P W/TRIP

 GENERAL ELECTRIC CIRCUIT BREAKER THED124030 30A 480V 2P

 GENERAL ELECTRIC CIRCUIT BREAKER THED124030WL 30 480V 2P

 GENERAL ELECTRIC CIRCUIT BREAKER THED124100 100A 480V 2P

 GENERAL ELECTRIC CIRCUIT BREAKER TKH12S 1200A 600V 3P 25KA W/ RMS-9 TRIP

 GENERAL ELECTRIC CIRCUIT BREAKER TKH8S 800A 600V 3P 25KA W/ RMS-9 TRIPAR

GENERAL ELECTRIC CIRCUIT BREAKER TKM3F1200 1200A 600V 3P

GENERAL ELECTRIC CONTACTOR CR353AD4BA1B 40AMP 4 POLES 110-120V 55-B31A

GENERAL Electric Control Board 531X300CCHBDM3

General Electric COntrol CR105U000AAC 50HO NEMA Size 3 600AC 100A Contactor

General Electric CR105D0 Contactor 120VAC 25HP  Nema Size 2 NOS

General Electric CR1062-E3B Group D Class 1 Explosion Proof Motor Starting Sw

General Electric CR1062-M17A Motor Starting Switch

General Electric CR1062-N17A Motor Starting Switcharrnaty

 GENERAL ELECTRIC CR1062R3AAT1000 MANUAL MOTOR STARTER

General Electric CR120B12002 Industrial Relay Coil: 115-120V, 110V Ser A

General Electric CR160MB 51612A Series A 100A Mechanically Held Lighting Cont

GENERAL ELECTRIC CR245L104B SERIES A RELAY MODULE  

GENERAL ELECTRIC CR2940NP611G / CR2940NP611G ( )

General Electric CR305F10200ZDADB 135A 3PH Magnetic Contactor

General Electric CR307E1194FXAMLJL CRO307E1 Size 3 600V 90A Starter w/ CR324F

General Electric CR308B1821AAB5DA SIZE 0 600V 18A Starter W/15D21G002

General Electric CR308BT02R31AALAA 18A 600V Nema 0 Contactor

General Electric CR308BT181AGAALAA Size 0 600V 18A Type 1 Combination Starter

General Electric CR308D1042WXDLSTH SIZE 2 45A 600V Combination Starter

General Electric Cr309000AKA Size 1 600V 27A Two Speed Motor Starterar

General Electric CR355A 55-501463G002 270 Amp 200HP 600V 3 Pole Motor Starter

 General Electric CR360L 31202ANAZ 300 In-Line Control Lighting Contactor

General Electric CR360L41423ANAZ 250V Contactor Enclosure

General Electric CR360ML212 / CR360ML212AYO21D 30A Lighting Contactora

General Electric CR463M40NJA10A0 Mechanically Held Lighting Contactora

GENERAL ELECTRIC CR9503211EAB499 120V 60A NSNP

GENERAL ELECTRIC CURRENT TRANSFORMER 822X91 2500:5A RATIO 0.6KV

General Electric DDID3-322 3 Pole 60A 15HP Twin Fusible Switch

GENERAL ELECTRIC DE FUSIBLE BUS PLUG DE322R 60A 3PH 3W 240V

GENERAL ELECTRIC DFPC421DH 30A 240V 4POLE FLEXAPLUG SWITCH

GENERAL ELECTRIC DISCONNECT 200A 240V 3P 3R FUSIBLE

 GENERAL ELECTRIC DISCONNECT SWITCH 100A 600V 3P MOD 1 75HP FUSIBLERRA

GENERAL ELECTRIC DISCONNECT SWITCH TC60462 60A 600V 4P FUSIBLE

GENERAL ELECTRIC DISCONNECT SWITCH TC72462 60A 600V 4P FUSIBLE

GENERAL ELECTRIC DISCONNECT SWITCH TG3224 200A 240V 2P FUSIBLE

GENERAL ELECTRIC DISCONNECT SWITCH TG4323 100A 240V 3P FUSIBLE

GENERAL ELECTRIC DISCONNECT SWITCH TGN3323 100A 240V 3P NON FUSIBLEWARRA

GENERAL ELECTRIC DISCONNECT SWITCH TH3363 100A 600V 3P FUSIBLE

GENERAL ELECTRIC DISCONNECT SWITCH TH4323 100A 240V 3P FUSIBLE

GENERAL ELECTRIC DISCONNECT SWITCH THN3362R 60A 600V 3P 3R NON FUSIBLEWA

GENERAL ELECTRIC DISCONNECT SWITCH THN3363J 100A 600V 3P NON FUSIBLEWARR

GENERAL ELECTRIC DISCONNECT TH3365 400A 600V 3P FUSIBLE

GENERAL ELECTRIC DISPLAY INTERFACE PWA 135799-01 I/O MODULE 15.5W 350093 90DAY W

General Electric Drive Systems 193X562AC G06  

General Electric E157515 Quickpanel IC755CBW07CDA-CG | 15W | 24VDC | 0.625A

General Electric EALP035K5SM750NDD1BLCKF 212W 5000K 70CRI 30,000LM 480V LEDA

GENERAL ELECTRIC ENCLOSED THN3365 MOD 2 400A 3POLE 600V

GENERAL ELECTRIC F31X139APMALG2 BOARD F3IXI39APMALG2 FR01/0 S88

General Electric FBN36TE035RV 3 Pole 35A 600Y/347V Circuit Breaker

General Electric FC9612TSE1 PC Timing Card Module

General Electric Flex-A-Plug Breaker Type 763B400P2 30A 4 Plug Bus Plug  

GENERAL ELECTRIC FLEX-A-PLUG BUS PLUG DH323R 100A 240VAC 3P FUSIBLE

GENERAL ELECTRIC FLEX-A-PLUG DFPHA362FVK 60A 600V

General Electric Forklift Contactor Type C, 24v 100A CTTA154FR124XN SEE PICTURES

GENERAL ELECTRIC FUJI DRIVE INVERTER 6KE1121001X1A1 INPUT: 11.4A OUTPUT: 4A 200-

GENERAL ELECTRIC FUSIBLE BUS PLUG AC422RGR 60A 240V 3PH 4W STYLE 6

GENERAL ELECTRIC FUSIBLE BUSWAY PLUGS SB365RGR 400A 600VAC 3P 3W STYLE 1,

GENERAL ELECTRIC FUSIBLE SWITCH PANEL DDIS3-323 100A 250V 3P

General Electric FVK322RU 60A 3 Phase 7.5HP Bus Plug

General Electric FVK361R 30A 600V Flex-A-Plug Bus Plug

General Electric FVK362R Style 2 60A 3 Pole Flex-A-Plug Buss Plug

General Electric FVK363R 100A 600V 3P 3W Flex-A-plug Bus Plug

General Electric FVNR Type 1 Panelboard Switch

GENERAL ELECTRIC GE 3S7505PG520A1 PHOTO ELECTRIC RELAY 2 yr

General Electric GE Contactor CR360L513**TDAA 100 A Amp

General Electric Ge CR306F002 Size 4 Full Voltage Starter 120V Coil 100hp

GENERAL ELECTRIC GE DD2S5325 400 AMP 240V FUSIBLE PANELBOARD SWITCH WARRA

GENERAL ELECTRIC GE DD2S6326 600 AMP 240V FUSIBLE PANELBOARD SWITCH WARRA

GENERAL ELECTRIC GE DOUBLE BARREL FUSE EJ0-1DD 9F60HJD125 125E A AMP 5.5KV

GENERAL ELECTRIC GE FANUC MICRO APPLICATION CONTROL CIRCUIT 531X139APMAYG2

GENERAL ELECTRIC GE FANUC MICRO APPLICATION CONTROL CIRCUIT 531X139APMAYG2 S72

General Electric GE Fuse Type EJ-1 Cat# 0195X0851G-2 150A

GENERAL ELECTRIC GE FUSE TYPE EJ-1DD MODEL 9F60 GJC450 4.76kV 450E amp 80kA

GENERAL ELECTRIC GE FVK FVK461R 30 AMP 600V FUSIBLE BUS PLUG

General Electric Ge H2000-3P Filtrgard Cover/mounting Rigid Pendant

General Electric Ge IC610CPU101C Cpu W/1k Ram Module

General Electric GE Powermark TLM4020 200A GE Load Center Panelboardar

General Electric GE SGLA26AI0400 400 Amp 600V 2 Pole Breaker Refurb W/Shunt

General Electric GE TC065 400 Amp Breaker Lug Kit. Lot Of 3

GENERAL ELECTRIC GENERATOR PANEL TM860SCUGEN

GENERAL ELECTRIC HPC SWITCH THPC3412ETI 1200A 480V 3P

GENERAL ELECTRIC LIGHTING CONTACTOR CR160MC5H02AABAAA 100A 110-600V

General Electric Limit Switch Geared Rotary CR115E422121 2 NO Nema Type 4

GENERAL ELECTRIC LOW VOTAGE POWER CIRCUIT BREAKER AKR-8D-30S 800A 635V 3PAR

 GENERAL ELECTRIC LUMINAIRE 962710-31 LAMP W 400 LINE V 240 LAMP S51/BD LINE

GENERAL ELECTRIC MAGNETIC COMBO STARTER CR308C6822TADTLT 27A 600VAC NEMA 1, 1 Y

GENERAL ELECTRIC MAGNETIC MOTOR CONTROLLER 75C140 3HP 1-2A 208V 3PH 4-WIRE 60Z S

General Electric Model 8000 FVNR 480V 10HP CR306CX#0**BAT SELA36A100030 20A M

General Electric Model 8000 FVNR Size 1 480V 7.5HP CR306CX#0**BAT SELA36A1003

General Electric Model 8000 Type FVNR 0.333HP 3PH 480V Size 1 CR306C0**ACDT

General Electric Model 8000 Type FVNR 0.50HP 1/2HP 3PH 480V Size 1 CR306C0**

General Electric Model 8000 Type FVNR 0.750HP 3PH 480V Size 1 CR306C0**ACDT

General Electric Model 8000 Type FVNR 1 HP 3PH 480V Size 1 CR306C0**ACDT Fus

General Electric Model 8000 Type FVNR 2HP 3PH 480V Size 1 CR306C0**ACDT Fus

General Electric Nema Size 3 Contactor CR308E100EPHB 90A 600V

  GENERAL ELECTRIC OVERLOAD RELAY CR324F310A NEMA SIZE 4 LRG QTY