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。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，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的系统功能增强，控制系统设计简化。
(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。产品向多样化方向发展，出现了欧、美、日多种流派。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
Leeson 175565.00 Dbl C-Face Coupler Brake 3lb-ft 480/575V.7/.06A 50/60Hz
Leeson 175569.00 Coupler Brake 6lb-ft 95/115V 4.3/.3A 50/60HzNOP
Leeson 1HP 1750RPM 208-230/190V 143TC TEFC 3Ph 3.4-3.0FLA 60HzNOP
Leeson 1HP 1750RPM 90V ZS56C TEFC 10A 36.0 In/lbs COSMETICDAMAGE
Leeson 1HP 3450/2850RPM 208-230V/460V C56 TEFC 3Ph 60/50HZ C/WPulley
Leeson 2/1.5HP 1750/1450RPM 208-230/190V 145TC TEFC 3Ph5.8-5.4/5A 60Hz
Leeson 2HP 1750RPM 575V 145TC TEFC 3Ph 2.2FLA 60Hz NOP
Leeson 2HP 3450RPM 575V 56CZ TEFC 3PH 2.4A 60Hz
Leeson 2HP 3485RPM 208-230/460V 145T TEFC 3Ph COSMETICDAMAGE
Leeson 3/4HP 1700RPM 230/460V 71 3Ph 2.8/1.4A 60Hz NOP
Leeson 985.504E Right Angle Brushed Gearmotor 60:1 Ratio,0.06HP, 90V
Leeson AC Gearmotor 10:1 43lbs-in .16HP 170/142RPM 115/230V 38TEFC
LEESON AC GEARMOTOR C4T17FZ57B .33HP 230V 157RPM 125 TORQ(23987)
Leeson Brake Motor 1.5HP 1740RPM 575V 145TC TEFC 3Ph 1.8A60Hz
Leeson C145T17DB73A Pump Motor 2 Hp, 1740 Rpm, 145T Frame,208-230 3ph (24275)
Leeson Coupler Brake 115/208-230V 110/208-220V 50A 1PH GP60/50HZ
LEESON DC GEARMOTOR C4D17NZ23B 1/4HP 90V 135RPM 105 TORQ(23986)
Leeson FHP M009178 Motor 3/4HP 1725RPM 575V 56 TEFC 3Ph 0.9A60Hz SHELF WEAR NOP
Leeson Haight Pump C/W Motor 3/4" Inlet/Outlet 1/2HP *Plate WornOut*
Leeson M1125002.00 1/17 Hp, 90 Volt DC Motor 30 RPM 100 LB/in,1/2” Shaft NIB
Leeson M1125003.00 Electric Motor 90 Volt DC 600 Rpm 1/17 Hp 30Frame NIB
Leeson M1125072.00 Gearmotor 90 Volt DC 61 Rpm 1/8 Hp 30Frame
Leeson M6C34FB8J 1.5HP 3450RPM 115/208-230V 56 TEFC 1Ph17/8.5FLA 60Hz
Leeson MM23102D-0163 Speedmaster Controller 0-90(180)VDC 5ACOSMETIC CHIPS
Leeson MM23102D-0163 Speedmaster Controller 0-90(180)VDC 5ACOSMETIC DAMAGE
Leeson MM23102D-0163 Speedmaster Controller 115(339)V 1PH 8ARUST ON SCREWS
Leeson MM23202D-0163 DC Motor Control 0-90/180VDC 5A
LEESON Model C6T34NB6C Cat #110714.00 1/2 HP Electric Motor3450/2850RPM (21062)
Leeson N100T17FZ3B 3.0HP 1750RPM 575V DF100L Fr IP55 3.3A60Hz
Leeson Permanent Magnet Motor 1HP 1750rpm 90VDC S56C TEFC 5/8"Shaft
Leeson Round Body Motor 1HP 1725RPM 208-230/460V 56C TEFC 3PH60Hz
Leeson TBM0621-15-2-56 Gearbox 15:1 Ratio 725in-lb1.58HP@1750RPM NOP
LEGRAND EFB610CTCBK Evolution Series Black Flush Style Coverwith Carpet Insert
Legrand PS20AC2W Straight Double Pole Switch 20A 120/277V (Packof 10)
Legrand Trademaster - TP2-W 2 Gang 2 Toggle White Wall Plates(Pack of 20)
Legrand Wiremold 4ATP2RBK 4" Prewired Flush Style Duplex BlackEvolution Ser NIB
Legrand Wiremold LC15-1044WM-6 4 Outlet Power Supply With 6ftCord
Leica Biosystems Slide Stainer Mains Inlet Assembly14045635228
Leica BOND Polymer Refine Detection System DS9800(2022-10-29)
Leica DB80 LX Low Profile Microtome Blades 50 Blades
Leica DM1000 Medical Laboratory Microscope
Leica HistoCore Spectra Coverslipline 1 assy (Complete)14051454505
Leica LED Control Unit 30211001
Leica M125 Stereo Microscope, w/ MST50, 2x Eyepieces
Leica Microsystems B8-2386-1-17 Board
LEICA MZ6 Stereo Zoom Microscope with MEB115, 10445111
Leica TCRM1203+ Robotic Survey Total Station
Leine & Linde XHI INCREMENTAL Encoder 729677-01 (9-30V DC) (USSELLER)
Leisure Concepts ModStep Hot Tub 47"x35"x23" Slip-ResistantSteps STEPS ONLY
Leitch Neo FR-3923 Frame Audio/Video Synchronizer w/ Modules
Leitz Wetzlar 20 160/0.17 EF 40/0.65 PHACO 2 Objective Lense
Leitz Wetzlar 519760 EF 10/0.25 160/- Microscope Objective Lens(19602)
Leitz Wetzlar 519762 EF 40/0.65 160/0.17 Microscope ObjectiveLens (19600)
Leitz Wetzlar 519859 PLAN 100/1.25 OIL 160/0.17 MicroscopeObjective Lens (19601
Leki 38” Speedlock Stopmax Carbon Fiber RAW Poles (6-Pack)
Lely Astronaut A4 Milking Robot Pulsator 4 Effect Kit (GENUINEOEM)
LENEL DVB 408 v1.2 Video Device Card
LENNOX 30W33 LB-90701C KIT - Ignition Control 24V 60Hz(20893)
LENNOX 62K48 LB-79982A DUAL ROD FLAME SENSOR ASSEMBLY(20882)
LENNOX 62K49 LB-79982B DUAL ROD FLAME SENSOR ASSEMBLY(20881)
Lennox 65K07 LB-84495A Ignition Control Conversion Kit(20706)
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Lenovo / IBM 00AJ126-600 GB 15K 6Gbps SAS 2.5 G3HS HDD
Lenovo / IBM 94Y5219 Flex system EN4023 10Gb Scalable Switch94Y5218
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Lenovo 00AJ071 - 900GB 10K 6Gbps SAS 2.5" G3 Hot Swap HDD
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Lenovo 4XB0K12441 480GB LTS 5100 Gen 5 SSD SATA HS
Lenovo 54Y8978 P920 1400W Switching Power Supply 80 PlusPlatinum DPS-1400EB
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Lenovo 960GB 2.5'' S4500 SATA3 SSD Drive SFF Hot Swap7SD7A05740
Lenovo Backplane 4 Bay 2.5" HDD SSD SFF for x3550 M5 00KA055
Lenovo ChromeBook IdeaPad Flex 5 13IML05 82B8 AS ISConditions.
Lenovo Hitachi HH SATA DVD-RW 7XA7A01202 16x DVD±RW Lot of 3
Lenovo IBM 600GB 10K 12Gbps SAS 2.5" G3HS HDD 512E 00NA24100NA242
Lenovo IBM Dual Port VFA5.2 DUAL PORT 10GbE Network Adapter Card00AG563 Lot 2x
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Lenovo QLE2692-LNV Dual Port 16GBE SFP PCIe Network CardAdapter
Lenovo System X3550 M5 2x Xeon E5-2620 v3 2.4GHZ/64GB DDR4
Lenovo SystemX 1.2TB 2.5" 10K SAS 12Gb/s G3HS 2.5" Internal HDD00NA262 Lot of 2
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Lenovo ThinkPad Thunderbolt 3 Dock 40AC0135IS
Lenovo ThinkSystem 4599, 4599A11 2x Controller 01DC407 10x 1.2TB01DC409 2x PSU
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LENZE 14.428.15.1 / 14428151 Simplatroll CLUTCH BRAKE 170V150.4.428-008
Lenze 2.2kW 1710RPM 220-277/380-480V TEFC 3Ph C/W Reducer30.441:1
Lenze 7508-5B Drive 1HP 3PH 600VAC
Lenze 7509-5B Drive 2HP 3PH 600VAC
Lenze AC Gearmotor 25.185:1 60Nm 1.410/1.720RPM 0.37kW 400/460V3Ph
LENZE AC TECH 13437827 / ESV153N04TMD SMVector DRIVE 15kW/20HP400/480V 3PH NSFS
LENZE AC Tech 13459170 / SM230 SCM SERIES SPEED MOTOR CONTROL3HP/2.20kW
LENZE AC Tech 13459183 / SM250 SCM SERIES SPEED MOTOR CONTROL5HP/3.70kW
LENZE AC TECH ESV152N02YMC / 13471487 SMVector 1.5kW/2HPESV152N02YMCXX1C43
LENZE AC TECH ESV152N04TMC / 13374838 SMVector 1.5kW/2HPESV152N04TMCXX1C42
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LENZE AC TECH ESV371N01SXC / 13374875 SMVector INVERTER DRIVE0.37kW/0.5HP
LENZE AC TECH ESV552N04TXC SMVector INVERTER 7.5HP 400/480V 3P13523980
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LENZE AC Tech M1450C MC SERIES INTELLIGENT DRIVE 5HP/3.7kW400/480V INPUT REP
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LENZE AC TECH MH5400B AC DRIVE, 30KW, 40HP, 3 PHASE, 480/590VIN, 0-460/575V OUT
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LENZE E82ev222_2C200 Vector 8200 Frequency Inverter
Lenze E82EV251K2C 8200 Vector AC Inverter Drive Ver. 5A37 *BentFrame*
LENZE E82EV371K2C / 00490461 8200 VECTOR INVERTER DRIVE240V 0.37kW 1-PHASE
LENZE E82EV402_4C / E82EV402K4C VER. 3D35 8200 VECTOR INVERTER4kW 13015735 USPI
Lenze E82EV751_2B Frequency Inverter 00450753 0.75KW-
LENZE E82MV222_4B001 E82MV222-4B001XX3837 8200 MOTECINVERTER 2.2kW 13266389
Lenze EMB9351-E Brake Module (24852)
Lenze EMZ9372BB Diagnosis Terminal 1.5 Cable
Lenze ESV222N06TXB Inverter Drive 2.2kW 3HP 3Ph 0-575V 3.9A0-500Hz AS IS
Lenze ESV371N04TXB Variable Frequency Drive 3Ph 400/480V1.7/1.5A
Lenze ESV751N01SXBXX1G42 AC Tech SMVector AC Drive 1HP 3Ph0-230V 4.2A
Lenze EVF8202-E-V002 00384223 Inverter Frequency Inverter
LENZE GFQT 100-22 440/200V 21.5A 8.0KW NR. 182526, MGFQT
LENZE GST04-2M VBR 071C42 / MDEMAXX 071-42 / 15272455 HELICALGEAR MOTOR
LENZE i500 Series EZAELN3004B742 Mains Choke 600V 4A 50/60 Hz
Lenze I51AE137F10V1BAKAS High Voltage AC Inverter Drive i5103/PE 400/480 VAC
Lenze LZ09-4C Adj. Speed AC Drive 2HP 400/480V 50/60Hz 3Ph4.7/4.1A
Lenze LZ09-5B AC Drive 590VAC 1.5KW 2HP 3.3/2.7A 3Ph 50/60Hz
Lenze M1530B MC Series Drives Nema 1-Input Line 480 V No FacePlate AS IS
LENZE MODEL 732 / 0/8059/445 / 33.732.16.000 AC DRIVE 7031CONTROL BOARD
Lenze SDSGAXX056-22 .240kW 2790/min C/W Reducer 59.413:1
Lenze SF5100 AC Drive 10HP 3Ph 0-460/575V 12.2A 0-240Hz *CRACKEDFRAME*
