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
Cutler Hammer E51DP2 Photoelectric Diffuse Reflective Sensor Head, 18Ft Range
Cutler Hammer E51DP2 Photoelectric Head
Cutler Hammer E51PLC1 Photoelectric Sensor includes E51DC1, E51SPL, E51RN
Cutler Hammer E51SBL Eaton Switch Body Ser C1
Cutler Hammer Eaton 10250T73 Switch Assembly Heavy Duty 600VAC Std. Duty 250VDC
Cutler Hammer Eaton A200M3CACD2 120V Coil Size 3 Contactor
Cutler Hammer EATON AE56LN0 Reversing Motor Starter Size 3 120V Coilar
Cutler Hammer Eaton AN16BN0EC Size 0 Motor Starter w/ 208 VAC Coil -
Cutler hammer ECC04C2HBA 12P 30A 277V C320MH2WH0 Lighting Contactor 2YR
Cutler Hammer ECL03B1A2A CN35BN3 20A Lighting Contactor
Cutler Hammer ECL04C1A2A A202K1BAM Model L AC 30A Lighting Contactor W/ Enclo
Cutler Hammer ECL04C1A4A A202K1CAM 30A Lighting Contactor
Cutler Hammer ECL04C1ABA A202K1EAM/A202K1BAM 30A Lighting Contactor
Cutler Hammer ECN0501BAA, Size 0 Starter, 3 Pole, 240 Volt Coil- - S171
Cutler Hammer ECN0501BAA, Size 0 Starter, 3 Pole, 240 Volt Coil- -
Cutler Hammer ECN0531EHA Series A1 AC Magnetic Starter
Cutler Hammer ECN05A1AAA, Size 00 Starter, Nema 1 Enclosure
Cutler Hammer EHC3125 125 AMP 480 Volt 3 Pole Circuit Breaker WARRANT
CUTLER HAMMER EMERGENCY STOP ENCLOSURE 10250T-N1SURPLUS 10250TN11
Cutler Hammer FDB3020L 3 Pole 20 Amp 600V Lug to Lug Circuit Breaker - Warranty
Cutler Hammer FDB3060L 3Pole 60 Amp 600 Volt Canada Label Circuit Breaker Tested
CUTLER HAMMER FDPW325R FUSIBLE PANELBOARD SWITCH 400A 240V W/HARDWARERR
CUTLER HAMMER FDPWT3211R TWIN PANEL BOARD SWITCH 30A 240V 3P W/HARDWEAR
Cutler Hammer GHB3015 3 Pole 15A Circuit Breaker
CUTLER HAMMER HFD3060L 3P 60A 600V CIRCUIT BREAKER
Cutler Hammer HJD3250F 250A 600VAC Series C 3 Pole Circuit Break
Cutler Hammer HLDB3600FT33W Breaker ~ 500 Amp - 1Yr Warranty *AUX SWITCH*
Cutler Hammer HMCP015E0L 15 Amp 3 Pole 600V Series C Motor Circuit Protector NIB
CUTLER HAMMER HMCP050K2C SERIES C MOTOR CIRCUIT PROTECTOR 50 AMP BREAKER
Cutler Hammer HMCP050K2CA02 3 pole 50 Amp 600 volt AUXILIARY SWITCH TESTED
Cutler Hammer HMCP100R3C Circuit Breaker 100A 600V 3P
Cutler Hammer HMDLB3800T33W Molded Case Circuit Breaker 800 Amp 600V W/ AUX
CUTLER HAMMER HT8GBGAV7 W/ HT8A Contact SER. A1 NSMP
CUTLER HAMMER IGRD36 BUSWAY PLUG GROUND DETECTOR
CUTLER HAMMER LCFP355F 55A/100A disconnect switch
Cutler Hammer LFD3070R 15-70A Current Limiter
CUTLER HAMMER LIGHTINH CONTACTOR ECE06B1AAA (2)CE15BNS3 SER B1 10A 110/120VA
Cutler Hammer Limit Switch w/Cable E50SB6P20 Ser B1 _ E50 _ 6P+ _ E5OSB6P2O
CUTLER HAMMER M300 6965D73G02 ADJUSTER FOLLOWER
CUTLER HAMMER MAGNETIC COMB STARTER/CIRCUIT SWITCH SIZE 1
Cutler Hammer Motor Control 10250H1004A One Button Jog
CUTLER HAMMER MOTOR STARTER A10EN0 SZ 3 120V COIL
Cutler Hammer ND312T36W 1488D02G12 Style 1200A 600VAC 3 Pole Circuit Breaker
CUTLER HAMMER NS361200A 3P 1200A Circuit Breaker W/ 1200A Trip
CUTLER HAMMER PANELBOARD FDPS364R 200A 600V 3P FUSIBLE
CUTLER HAMMER PANELBOARD SWITCH FDPS-368T 1200A 600V 3P FUSIBLE
Cutler Hammer Parts Kit 6-191-5
CUTLER HAMMER PHOTOELECTRIC POLARIZED REFLEX 1451B-6507 SER. B2 1451B6507
CUTLER HAMMER PHOTOELECTRIC POLARIZED REFLEX 1451B-6507 SER. B2
Cutler Hammer Pow-R-Line PRL4B 480V 600A 3 Phase 3 Wire Panelboard ar W
CUTLER HAMMER PRINGLE SWITCH QA-1233 1200A 480V 3P FUSIBLE
Cutler Hammer PRL1 120/208V 100A 3 Phase 4 Wire 42 Circuit Panelboarda
Cutler Hammer PRL1A 120/208v 100A 3 Phase 4 Wire 18 Circuit Panelboard
Cutler Hammer PRL1A 120/208V 125A 3 Phase 4 Wire 30 Circuit Panelboard
Cutler Hammer PRL-1A 240V YS2072 400A Panel w/ 300A Trip
CUTLER HAMMER PRL1A PANEL 100A 120/240V 1PH 3W MLO
Cutler Hammer PRL2A 480/277V 400A 3 Phase 4 Wire 60 Circuit ML Panelboard 1
Cutler Hammer PUB A10E-1 Ser A1 Nema Size 3 Starter 120V60Cy 110V50Cy
CUTLER HAMMER QC3040HT QUICKLAG C CIRCUIT BREAKER 3P 240VAC 40A TYPE QC
CUTLER HAMMER RESERVING STARTER A10GNO/C10FN3 NEMA 5/4 3 PH 270A
Cutler Hammer S20N11S02N Series A Type 3R Single Phase 2KVA Dry Type Transfor
Cutler Hammer Series C HMCP015E0C MOTOR CIRCUIT PROTECTOR 15 AMPS 3 POLES 600VAC
Cutler Hammer Series C1 3P 200A 120 Coil 600V Contactor
Cutler Hammer SFDN225 Type 1 Indoor Surface Enclosure
CUTLER HAMMER SINGLE PHASE TRASFORMER, PRI VOLTS 240 X 480, 60 HZ, S20N11S83N
CUTLER HAMMER SIZE 5 STARTER A10GN0 270A 200-575V 3PH W/COIL 1891-3 480V 1
CUTLER HAMMER TWIN FDPWT3611J PANELBOARD 30A 600V 3P FUSIBLE NO STRAP KIT 1Y
CUTLER HAMMER TWIN PANELBOARD FDPWT3622J 60A 600V 3P FUSIBLE NO STRAP KIT 1Y
Cutler Hammer Type EHC 2060 Circuit Breaker
Cutler Hammer Type M Relay D26MR30A 600V, Coil 120V 60Hz 3 Poles 78-2113-18051
Cutler Hammer Visi-Flex De-Ion Switch Model A 3 POLE 60 AMP 2607D63G05 W/clips
CUTLER HAMMER WESTINGHOUSE BREAKER KDB3350W 350A 600V 3P
Cutler Hammer Westinghouse EHC3060 3 pole 60 amp 240 volt Circuit Breaker E63
Cutler Hammer Westinghouse HMCP050K2C 50 Amp 3pole 600V Motor Circuit Protector
Cutler Hammer Westinghouse HMCP100R3C motor circuit protector breaker 100A 600V
CUTLER HAMMER, 100A BREAKER, 3 POLES, #HMCP100R3, SIEZED LUG
Cutler Hammer,C361SC,Disconnect Fuse Switch NO Handle Take Out
Cutler-Hamme CH330 Type CH3 30 AMP 240VAC 3 Pole Circuit Breaker ( )
CUTLER-HAMMER 10250T123 MUSHROOM HEAD GREEN NOS
Cutler-Hammer 10250T1522-1 3-Pos Cylinder Lock Switch 1NO 1NC H166 Key
Cutler-Hammer 10250T16534 3 Pos. Keyed Selector Switch Maintained Cam 3 Surplus
Cutler-Hammer 11100A6513 Photoelectric Sensor 20-264VAC 1.5W NO WASHERS NIB
CUTLER-HAMMER 120V 50-60HZ PRETEST LIGHT 10250T221N SER. B1
Cutler-Hammer 1550PM Panel Mate1500 Power Series Part Number 92-01667-00 24 VDC
CUTLER-HAMMER 6-132-3 CONTACTS SET / SURPLUS
Cutler-Hammer A200M5CAC Type J | Size 5 | Motor Control/Starter | Contacts Pics
CUTLER-HAMMER ADJUSTABLE FREQUENCY DRIVE AF93AZ0C0115DCL1 10HP 23A 480V 3PH 1 Y
CUTLER-HAMMER ADJUSTABLE VFD IS93AZ0C007DC1I3L1X5/H3007CZ0DA00442 7.5HP 12-480V
CUTLER-HAMMER ADJUSTABLE VFD IS93AZ0C015DC1I3L1X5/H3015CZ0DA00441 15HP 12-480V 3
Cutler-Hammer AF93AG0B007D NEMA 1 7.5HP @ 230V
CUTLER-HAMMER BA CIRCUIT BREAKER BAB2020H 20AMP 240VOLT 2POLE LOT OF 2 NTO
Cutler-Hammer BAB3060HS Circuit Breakers 60 Amp 3 Pole Shunt Trip Bolt On
CUTLER-HAMMER BREAKER HMCP070M2 SER C 70A 3P 600V 210-700A TRIP
CUTLER-HAMMER BREAKER PANEL ENCLOSURE SFDN100 100A MAX 600VAC/500VDC SERIES
CUTLER-HAMMER BUS PLUG FAN361 30A 277/480V 3PH FUSIBLE
CUTLER-HAMMER BUS PLUG P3BFD3200N 200A 277/480V
Cutler-Hammer C0150E2AFB Control Transformer 150VA 50/60Hz NTO
Cutler-Hammer C301DN3 OVERLOAD RELAY SER A
Cutler-Hammer CE15LN3 Series A1 10E With C316PNA3 Overload 65-90 Amp
CUTLER-HAMMER CH340 40 AMP PLUG-IN CIRCUIT BREAKER 3 POLE 240 VAC
CUTLER-HAMMER CIRCUIT BREAKER ED3175 SER C 175A 240V 3P
CUTLER-HAMMER CIRCUIT BREAKER ED3200 200A 240V 3P ED65k
CUTLER-HAMMER CIRCUIT BREAKER EHD3100 100A 240V 3P
CUTLER-HAMMER CIRCUIT BREAKER FD3225 225A 600V 3P
CUTLER-HAMMER CIRCUIT BREAKER FD3225 225A 600V 3P W/ SNT1LP08K SHUNT FD35k 1YR W
CUTLER-HAMMER CIRCUIT BREAKER FDB3035 35A 600V 3P FDB 14k
CUTLER-HAMMER CIRCUIT BREAKER GHB3020 20A 480V 3P
CUTLER-HAMMER CIRCUIT BREAKER GHB3030 30A 480V 3P
CUTLER-HAMMER CIRCUIT BREAKER RD316T33W 1600A 600V 3P
Cutler-Hammer Clipper PJ16148 Power System Surge Protect
Cutler-Hammer Clipper VL (CVL50) CVL050CH480YBDRSX Nema 1 InDoor
CUTLER-HAMMER COMBO ECL12D8A3D LTG-EH 200A ENCL1 480 3P 200A/600 R W/CONTACT
CUTLER-HAMMER COMBO STARTER A40FG0 SERIES C1 W/STARTER A10FN0 135A 575V 100H
Cutler-Hammer Contactor 4 Pole 40 A 208/240V C25ENF440B EATON replaces C440C
CUTLER-HAMMER CONTACTOR A10EN0 SERIES B1 90A 200-575V 25-50HP 3PH NEMA SIZE 3 1
CUTLER-HAMMER CONTACTOR C825KN10 200A 600V W/ COIL 1891-1 110V/120V
CUTLER-HAMMER CONTACTOR C832KN3 200A 600V 3PH 50HZ SERIES B1,
CUTLER-HAMMER CONTACTOR C832LN1 350A 600VAC 3PH 110/120VAC COIL SERIES B1, 1 Y W
CUTLER-HAMMER CONTROL STATION C400LG1 SERIES A1 NIB
CUTLER-HAMMER CURRENT TRANSFORMER 151D026G01 4000:5A RATIO 600V
Cutler-Hammer D40RB Powereed Relay
Cutler-Hammer DH362NGK 3 Phase, 4W, Fusible Heavy Safety Switch 60A 600V
CUTLER-HAMMER DISCONNECT SWITCH DH322NWK 60A 250V 3PH SS FUSIBLE
CUTLER-HAMMER DISCONNECT SWITCH DH363UGK 100A 600V 3P NON-FUSIBLE
CUTLER-HAMMER DOUBLE-THROW DISCONNECT SWITCH DT362FGK NEMA 1 60A 600V 3PR
CUTLER-HAMMER DOUBLE-THROW DISCONNECT SWITCH DT363FGK 100A 600V 3P NEMA 1, 1 Y W
CUTLER-HAMMER DRY TRANSFORMER Y48J24T09N 9KVA 480VAC 3PH 60HZ 3R
Cutler-Hammer E34VFBK1-X1 Selector Switch
CUTLERHAMMER E65UV2002 UV PHOTO SENSOR 40mm RANGE EATON
CUTLER-HAMMER EATON CIRCUIT BREAKER 3P, 150A, JS360150A 600V
Cutler-Hammer ECN0501CAA Size 0 Nema Type 1 Enclosure 3PH 480/60 440/50 V AC
Cutler-Hammer ED3150W 150 A 240V 3P Industrial Circuit Breaker ** Main
Cutler-Hammer Emergency Stop Pushbutton, E22CSP1Y, E22ASB105 Large QTY
CUTLER-HAMMER F COMBO STARTER W/COIL MOTOR ECN1801EHB/AN16BN0 NEMA SIZE 0 18
CUTLER-HAMMER F COMBO STARTER W/COIL MOTOR ECN1811EHB-A29/AN16DN0 NEMA SIZE
CUTLER-HAMMER FUSIBLE MAGNETIC COMBO STARTER W/COIL MOTOR NEMA SIZE 1 ECN1811EHB
Cutler-Hammer GHB2020 2P 20A 277/480vV Circuit Breaker, Great!!! Take Out
Cutler-Hammer HFD3015L Circuit Breaker 15A, 3 Pole ()
CUTLERHAMMER HMCP250L5W SER.C MOTOR CIRCUIT PROTECTOR 250A
Cutler-Hammer HMCP400X5C Series C 400 Amp 3 Pole
Cutler-Hammer HMCP400X5W Motor Circuit Protector, 400A, 3P W/AUX
CUTLER-HAMMER IEC Contactor CE15DNS3 w/ Relay C316FNA3
CUTLER-HAMMER INTERFACE MONITOR DP-4000 8793C15G01 240VAC 3PH
Cutler-Hammer Limit Switch Operating Head E50DR1 SERIES A1 E50SA SERIES A2
CUTLER-HAMMER Mining CIRCUIT BREAKER E2F050KMA02U62 50 AMP 600VAC IN STOCK
CUTLER-HAMMER Mining CIRCUIT BREAKER E2F050YMA02U62 50 AMP 600VAC IN STOCK
CUTLER-HAMMER MISC. SWITCH FDPW367B 800A 240-600AC 3PH FUSIBLE
Cutler-Hammer Molded Case Circuit Breaker AQB-A50 - 10 Amp
CUTLER-HAMMER MOTOR STARTER A10FNO 135A 200/575VAC 3PH
CUTLER-HAMMER PANELBOARD SWITCH FDPWT3622J 60A 600V 3P 1PH FUSIBLE ARRANTY
CutlerHammer PRL-1A 100A 208/120V 3 Phase 4 Wire Panel Board
CutlerHammer PRL-2A 100A 480/277Y 3 Phase 4 Wire 30 Circuit ML Panel board
Cutler-Hammer Reversing Contactors C50E-1 90A Size 3
CUTLER-HAMMER REVERSING DRUM SWITCH 9441H274A
CUTLER-HAMMER SERIES 95 AF VFD AF95AN0C030CL 30HP 42A 460/480V 3PH 1/60/133HZ 1
CUTLER-HAMMER SIZE D W/PLUNGER SOLENOID 10370H586 120V