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
Toyo Keiki IS-2 Insulation Resistance Monitor
Honsberg VD-015GR020 Flow Switch Flow Limiter
Rexroth DR6DP2-54/25y Pressure Reducing Valve
Siemens CPU Module 6ES7 212-1BE31-0XB0 Processor/Controller
Eim Controls L1060 2T-3G Switch MCP Limit For EB-00 Actuator
Invensys KNP-5-48 Thermostat 30A 277 VAC MT 850 ℉ #3
Ako P-10900/34 Timer Control For Commercial Dishwasher With AKO Typ 500
Osprey 825e Dual Channel Video Capture Card 91-00274-03
Osprey 825e Dual Channel Video Capture Card 91-00274-03
Rexroth 89003055140 Double Check Valve
Norgren R18-100R Pressure Regulating Valve Repair Kit
Buveco 1215332 Oxygen Sensor
MSA 10106729 Xcell Gas Detector Sensor O2 Oxygen
MSA 10106729 Xcell Gas Detector Sensor O2 Oxygen
Hobart 00-122437 Shaft Upper Wash
General Monitors Inc 10059-1 Gas Sensor 7139-139
Hayward SP0714TC Vari Flo XL Top Mount Valve 50 PSI 75 GPM
Hayward SP0714TC Vari Flo XL Top Mount Valve 50 PSI 75 GPM
ABB DI840 3BSE020836R1 with Base ABB 3BSE020850R1
ABB DO840 3BSE020838R1 With Base 3BSE020850R1
Damcos MD1D-TA/61N-A240/DMS Solenoid Operated Directional Valve No. 160L8102
Rheintacho Messtechnik GmbH FA-26476 Speed Monitor
Eugen Seitz 118.100.024N Solenoid Valve - 2A27 24VDC
Telemecanique RHR-418E-Delay Timing Relay
LEL
IAI Corporation RCA2-GD4NA-I-20-2-30-A3-S-IND Mini Robo Cylinder
Saab Tank Control BU2051 Barrier Unit
Mcdonnell Miller FS8-W Flow Switch #120601 1'' NPT
Mcdonnell Miller FS8-W Flow Switch #120601 1'' NPT
Belimo EXT-T24-D201 Temperature Controller
Sun Hydraulic PBHB-LAN Pilot Operated Pressure Reducing Valve
Landis Gyr ROB50.221B27 Temperature Controller
Kongsberg Norcontrol NN803.2 Analog Output Adaptor ECO HE220265B
Trane XM70 Expansion Module
SM-Electrics WAP 220.4.0.0 Watch Alarm Panel 770106
Kongsberg Norcontrol NA1120 Pickup System HA331975B
Asco Tripoint PB21B PB-Series High Perfomance Pressure Switch
Stahl 9143/10-114-200-10 Power Supply
Saginomiya GMV-S303GQ40 Solenoid Valve AC220
A.T.E Electronic HAASE MPS15015 Panel Top
Asco 84200301 Solenoid Valve 230/50/60
MSA 10106725 Multigas Detector Sensor Kit CO/H2S for Altair , R,
MSA 10106725 Multigas Detector Sensor Kit CO/H2S for Altair , R,
Parker Compax-SL Servo Drive
VDO A2C53194789 Tachometer 3000 RPM
Appleton EFSC175-F3W 3 Way Snap Switch For Haz. Locations
Furnas 14FP32A*81 Motor Starter
Peltor MT7H79B-50 Headset Atex
Daikin 0756341 Stop Valve VSV10CB-4F
Marine Radio Co. MRC M7C Dynamic Mic IMP 600Ω
Norgren 3000-90 Auto Drain Kit For B38 Series Filter/Reg
Deif Rolls-Royce DLQ 144-PC-PY Analog Indicator Art.No. R128971A
Parker R20SM1608 Valve Repair Kit
Allen Bradley 22B-A2P3N114 PowerFlex 40 AC Drive 240VAC 1-Phase 2.3A 0.5HP
Allweiler Mechanical Seal For Boiler Pump
Bunn-O-Matic - 07074.0030 Liquid Level Control
Komeco Speed Sensor Assy
PCB For Red Lion CSMSTRLE Communication Protocol Converter / CPU
Stahl 9185/11-45-10 Module Fieldbus Isolating Repeater
Sick SX0B-A0000G Module Safety Scanner 2032807 #2
Telemecanique ATV31H075N4 Altivar 31 Variable Speed Drive
Schneider ATV312H075N4 Variable Speed Drive
Sick 2027180 Front Screen Kit
Uniweld 780A Cutting Attachment
Charles Austen Pump Model L12 With Crouzet 823305 Clockwise Synchronous AC Motor
Uzushio Electric ULV-1 PCB No. 1179
HBM 02/02 P8AP/50 Bar Absolute Pressure Transducer
Vickers DG4V 3S 2A M U H5 60 Directional Control Valve
Parker VE116N Solenoid Valve With Coil
Phoenix Contact 2864189 MINI MCR-SL-UI-2I-SP-NC Signal Duplicator
KBCP-3 Pcb Card NPN 36044
Phoenix Contact MINI MCR-SL-TC-UI-NC Thermocouple Measuring Transducer
AM30094 TST 16.0 45 Bar (1.2-) Pressure 2nd Stage
Beta BV B2-P504H-BXB-P2-BG-X1 Pressure Temperature Switch
RS PRO 180-7082 Multi Function Calibrator 4-20mA Current Loop Simulator
Phoenix Contact MINI MCR-SL-l-l-SP Signal Conditioner
Heinrich Kubler EME3/8-MU-L100-SVK44A-3CY Float Switch KP-39667/2
Hobart 475488 F 240V Temperature Control Board
Scotsman 33580150/0 Water Level Sensor SCM038 Rev. 1
Victor Marine MS019B Coalescer Cartridge 14 Inch For Oily Water Separator
Dema DART REJ Warewash Dispenser O-DDV
Allen-Bradley 150-C37NBD SMC-3 Smart Motor Controller Soft Starter
Beta P.I Pro Pressure Gauge Calibrator - 70 Bar - For Parts /
Amec PP-714 Ais Pilot Plug
Fsg PW 55/01 Precision Rotary Potentiometer
Hawker Electronics KP1 MSD Probe Magicap
Federal Signal Fireball II FB2PST Red Strobe Light 120VAC 0.25Amps 50/60Hz
Federal Signal Fireball II FB2PST Red Strobe Light 120VAC 0.25Amps 50/60Hz
Square D 9001 KP1G31 Green Pilot Light 110-120V 50-60Hz -
Hager TXA111 Bus System Power Supply
Hager TXA112 Power Supply 30V DC 640 mA
Hager TYA670D KNX Module Interface Gateway Within Dali Lighting Network
Electrolux 487231704 Support Roller Bushing -
Asco SCE272A016 E Direct Operated Solenoid Valve
Festo KPE-16 Clamping Unit
Kunkle Valve 330-A01-KC Safety Relief Valve 1/4'' 3800 Psig
Teamtec QRB 1 Incinerator Light Sensitive Sensor
Kongsberg GN-100/N Thermocouple Amplifier 0-900℃ Connection 001-022082
Phoenix Contact QUINT-PS/1AC/24DC/20 Power Supply Unit 2866776
Phoenix Contact QUINT PS-24DC/24DC/10 Power Supply Unit 2866378
Flowserve 3N04556AO-C / 163767SL-C XK Mechanical Seal
Hemomatic HFNI-881228 York 3966 4052 655 M5700 3M
Hager EVN004 Remote Dimmer 500W Universal Comfort
Hager TYF120 EIB KNX IP Interface
Inversoll Rand ARO E612LM Manual Air Control Valve 4-way 1/4in NPT
Aventics R432015318 Pneumatic Valve Manif Segment P -068430-00000
Setra 209 Pressure Transducer 2091400PC1MZZ12VM Range: -14.7-400PSIG
Hanna Instruments BL 983329 TDS Mini Controller
PepperlFuchs KFD2-SOT2-Ex2 Switch Amplifier
PepperlFuchs KFD0-CS-Ex1.54 Safety Barrier
Terasaki Tembreak XE100NS Circuit Breaker - 30A - 3 Pole
Asco SC8210G033 Solenoid Valve 3/8 - 11.6W
Beckman Coulter Analysys Software A45311 Rev AE / 179804 Rev B
Fanuc A20B-3300-039 Servo Control Card -
F.W Murphy TSB-R210F/99C-1/2 Direct Mount Temperature Switch
Schneider TM200CE24R Controller Modicon Easy M200 24 IO Relay Ethernet
2224314 Steering Column Switch
TeamTec 12501 Thermocouple Type K Assy. NiCr-Ni
Lincoln Electric Output Terminal For Lincoln Welding Machine -
York RMM MKIVb Remote Monitoring Modem ID - 1108-0040
ATR BM109/1 Universal Controller
PizzaMaster 50405 Thermostat Sensor
Hager TYA608B Switch/Blind Output 8-FA. IP20 Bus System Switch Actuator
Eim Controls 2T-3G NO , 2 NC Switch MCP Limit For EB-00 Actuator #1060
Hager TYA628C Roller Shutter 8-Channel Actuator
Savox 400AL/WARIS K43292 COM-Control Unit Headset
Custom Control Sensors CCS 604G2 Adjustable Pressure Switch
Schneider Electric LTMR27EFM Motor Management Controller
Schneider LTMR100DFM Motor Controller
Starcool 818745A Co2 Sensor
Schneider Electric LTMR100PFM Power Management Controller Profibus
Control Products 2A1592-01 ICE Machine Control Board HOS-009