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

Omron Timer H3CR-A 100-240VAC 50/60Hz - 1.2s - 300h

 Omron Timer H3CR-A 100-240VAC 50/60Hz - 1.2s - 300h

Sothern Avionics Co. TKey 911102 PWB 305 - SPL30500 REV.I - 053553733 - PCB

Sothern Avionics - PWB-330-5151 - PCB DC Auto Disconnect - SA 100H

Electric Motor 30800-04 M202 - 15Amp 125/250VAC 95399 for Laundry System

Westcode SW22PHR380 Rectifier Diode 0000-9606-73 - ROSS HILL 0502-6011-62

Hobart 00-061521 Baffle Upper Wash Unit - 3pc lot

PR electronics Dual Trip Amplifier 2238

Aventics 9180 - 718 - 5340.170.0000 Valve

ROBERTSHAW K-425-12 K5280 YOUNGWOOD PA. THERMOSTAT

Schat Harding 966.007 Button Stop Schat-Harding Life Boat

Aesseal 43.5 Component Seal 1240117

Legrand 913408 Polarex Kit 230V 60Hz 2X16A/250V

Versa products VZL-3301-MS-155-167-218F PNEUMATIC DIRECTIONAL VALVE

Parker 7321GBN64N00N0D1D2P3 Safety Shutt Valve 10 Watts Kpa 30-1590

Transducer Pressure - 2197017-04 - 850 Bar Rev. 08 - STS Switzerland

SEAL KIT 1112-3200 HYD PRESS REG 1112-3297 FOR BOP CONTROL POD 703776 SEAL KIT 6

Bussmann Fusetron FRS-R-100 100A 600V Fuses  without

Relay - Nortech Consolidated - NCS2A-120 - STA2A120VAC - Cont. 30 Amp 120/240 VA

Carlo Gavazzi PMB01DM24 Multifunction Timer 24-240Vac/Dc 50/60Hz

Toako Type D Discharge Pressure 0-4 MPa

Rhino PSM24-REM360S Redundancy Module Input 24V/15A

SALWICO - PCB SWM 762 C (SFB 2177)

GVC 11802 Shuttle Springset Valve 1/4" NPT GIL 25416 Blowout Prevention

Mitsubishi PCB L-VC-02D - D173D1 Voltage Regulator For 1200 KW SCR System Japan

Temperature Sensor 651001002874 - EMD NO.9549492 - Setting 208/198 SetPoint 215F

Propreitary Manif Assembly, Counterbalance, Iron Roughnecks; ST-120 Birm Hyd.

Ball Valve Kinston 2" CF8M W36650 - 1000WOG - Full Port SS Body T Handle

Terasaki TemBreak XS50NS Circuit Breaker 10A AC600 V 3 Pole

Telemecanique LA5FF431 Contacts

Telemecanique LA5FF431 Contacts

Allen Bradley 800H-UR13 Potentiometer Unit 1000 OHMS Type 4,4X 300VAC 2 Watt

Coffin World Water Systems Mechanical Seal P/n – MSPN0359

Ac115s Solenoid Valve Coil 3 Pcs Lot

Enerpac hp-2005 Sliding Plate Pull Bolt

Furuno FP65-00401 Cosmetic Face Panel

Cello Lite Fuse NC1 5A 10Pcs lot

ATC Diversified Electronics ARB-120-ABA Alternating Relay 10A – 120 VAC

BARTEC 07-3353-1120 Lamp Module AC 12 250V DC 12 60v

0820.513.80.02.02 Push Button valve

OMRON MY4N-CR RELAY 100/110VAC  6PC LOT

Timken H715348 Bearing

Zematra 0-1.24 Pressure Vessel / Manometer Water

Pliz P1PN 17030 Monitoring Relay

Mha PN500 Ball Valve 46-12 BkhDn4 8S 112A

Siemens 5SY41 MCB C20 / 5SY4120-7 / 20 A AMP 1P 230/240 V Circuit Breaker 4 Pcs

Whirlpool W10390446 Washer Capacitor Motor Run 250V 50/60Hz - 2pc lot

Dresser Rand 1.1/2 CL900/150033512/0126 S/Wound Gasket

Electrolux 72.5041 stirrup 0KW713

INA RSL18 2207A Bearing RSL182207A

Skf 61813 Ball Bearing

Bartec 07-3323-3403 Switch Module

Amplifier Driver Public Address System Galbraith Pilot Marine - B304 - 60 Watt -

Alliance Laundry Speed Queen RB170002 Roller Kit 510708P Roller 4-95-29R1

United Electric 10-C11 Pressure Switch

United Electric 10-C11 Pressure Switch

NSK Bearings NU2206EMDC3 Cylindrical Roller Bearing

Martens TC 500-60-0-00 Thermocouple Transmitter Voltage Output Max 10Ma

Yanmar 119593-53140 Stop Plate 6LY-UT 750913 - 6pc lots

Essex 154-CIB4 Heavy Duty Contactor Hobart B121926-2

Halco H8264-17W-1A Packing C/W Lantern Ring

National Oilwell 7806825 Pressure Gauges Simpson Electric 6A-21A 4-20mA

Watts 00306 Back Flow Preventer ¼” - 3pcs lot

YANMAR 127610-91350 Switch

Miele 5063311 Dryer Belt

Mid-West Instrument Model 120AA-00-OO Differential Pressure Gauge 6000 PSI

Pepperl Fuchs 34065S Isolating Amplifier K-System KFD2-SOT-Ex2

Lister 570-11760 Water And Shaft Pump Parts For Life Boat Engine STWMGR

Abb Vetco 98626 Coupling MR6C Surface Slipjoint 10000Psi Max

ALLEN BRADLEY 1747-PIC  PERSONAL COMPUTER INTERFACE CONVERTER SLC 500

Clemco 02322 Pop-Up Vent , Internal Shaft P-2 / C02321

Hobart 00-074052 Coupling - 5pc lot

McDaniel 3481K11 0-6000 Psi Pressure Gauge K6K 1/4" NPT 316SS

Electroswitch 24304-B Rotary Switch Series 24 - 2 HP-240/480 VAC Generator contr

Kunkle 548-A01-KM Safety Relief Valve - 2pcs lot

Miller 222736 Rheostat

Metaltex T3RC3 24VDC

DEMEX Fuse – 10 Cartouches Cylindriques HPC – Size 14x51 – 10A gG - 10pcs lot

RS 349-282 Relay 115V AC 50/60Hz

Appleton EFSR-2 Model B - Receptable Interlock With Switch 20A 2HP 250VAC

Appleton EFSR-2 Model B - Receptable Interlock With Switch 20A 2HP 250VAC

Ingersoll Rand 39875570 Transducer Cable

Stahl 9002/11-280-293-001 Safety Barrier

Panasonic 2M167-M12 Magnetron Hobart 335426-1 Magnetron

CompAir Big End Bush Pair C201109 81687488 000100

Marechal Electric Maromme Receptacle II2G/D Ex De IIC tD A21 220-250V

AEG Elfa E82S Circuit Breaker U 4A ~ 415 - 4pc lot

Allen Bradley 800H-QRH24R Pilot Light PN – 800H-QRH24R SER F 24V AC/DC

AEG B177S 315A Thermal Overload Relay

Norgren 0821056 Pressure Switch

AEG LS47 Contactor Nr. 910-337-341-50 A600 P300 600VAC 10A

APPLETON SPBBU1Q STOP/START PUSH BUTTON - EXPLOSION PROOF

Yanmar 124617-91850 Relay 1T MR5A073A1K 12V

AUK Muller Solenoid Valve With Protective Cap 220-240V ~50-60Hz 70245

ABB A16 Contactor Ui-1000V~ ith-30A

Thermo Tech Co. Type K Temperature Sensor 200C

Ingersoll Rand 37952264 Hat Switch Kit Fenwal 08-819511-005 L245F

Seetru 35900063 Safety Relief Valve 1800PSI (1/2”-14BSPP)

Pepperl Fuchs 189784 REDUNDANT POWER FEED MODULE K-System KFD2-EB2.R4A.B

Gilmore 27901 SK REV 01 Seal Kit NOV 11387550-001 Seal Kit 1 IN Check Valve

Penn Pressure Switch - Oil Failure Cutout

CompAir Bearing Pairs C201109 81814786 000050 00069860

Crosby Clips G-450 Red U-Bolt CG Size 1/4 - 1010051 - 14 pcs lot

Danfoss KP15 Dual Pressure Switch 060-124166

Danfoss Spare 042N7402 Volt 240 Hz 50 Watt 10 - Denmark

Fuji TR-5-1NH/3 Thermal Overload Relay

Micro Switch BZE6-2RN183 Plunger Limit Switch

Ingersoll Rand 95507109 Nipple 1.25" NPT for Epe 150-2SW Air Compressor

Oil Control 120503 Relief Valve Cartridge

Squre D 9070TF150D1 Idustrial Control Transformer

Moore Products Sring House 615 B/M 14475-36S2

HIKARI SEIKI H 2309X BEARING ADAPTER - 2pc lot

EAO Swiss Made Push Button 704.950.0 with 4pc- 704.900.5

UNITED ELECTRIC J120 PRESSURE SWITCH MODEL:95792 451

Elbow National Oilwell Varco 56519-06-06-S 90Deg O ring Boss Ext 9/16 -7 pcs lot

Siemens 3NA3 812-6 Fuse Vde 0636 Iec 60269 32A - 3pc lot

SMITH-BLAIR 245-00035006-000 REPAIR CLAMP RANGE 3.50” 88-89MM WIDTH 6” 152MM

Watsco KF-14 302 psig Valve

IDEC RR3B-U AC120V RELAY MADE IN JAPAN 7PC LOT

IDEC RR3B-U AC120V RELAY MADE IN JAPAN 7PC LOT

Asahi F204 UCF202-10 Japan 2pcs Lot

RELPOL R15-2013-23-5024-WT RELAY - 3 PC LOT

Siemens 3NA3 820-6 Fuse 690V - 3pc lot

Quincy 5506X1 Adjustment Plate Quincy Compressor

Johnson Controls P70AA-118C Pressure Control

Vogt Hoshizaki 12A 4200 H 0201 Float Valve

National Oil Well Varco – 661007009 – Packing Set 25015-02W-BA

1N3293R DIODE NEGATIVE HEATSINK 6PCS LOT

Mitsubishi LS-110NAV Volt Meter 0~300V MSB 220 Feeder

Jergens 80109-MLC Push Button - USA

Fuse 160A 500V~ nach VDE 0636 IEC269 Din 43620 NH gL - 3 pc lot

RECTIFIER DIODE - 111RK180 9340 - ITALY - 3 pc lot