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

Square D QO2701021 2 Pole 70 Amp Sht Trip Plug In Circuit Breaker.

Dwyer 1950-5-2F Series 1950 Explosion Proof Pressure Switch 195052F

Schneider Electric Harmony XB5RFB01 Wireless Push Button w/ Receiver. ZBRTP

Siemens Simatic PLC TI305-02B 5 Slot Rack Chassis w/ Power Supply

 Danfoss Automatic RELAY OVERRIDE Control Board SW 018 HW O18. SO8

00 Allen Bradley Phoenix Contact Terminal Blocks. DIN Rail

Telemecanique Square D VW3A66206 Altivar 66 Control Keypad. 52012-627-50 Cable

DigiTrace 30 Amp Solid State Relay Module 920SS3

Eaton Cutler Hammer ED3150 3 Pole 150 Amp Type ED 65K Circuit Breaker

El-O-Matic Pneumatic Actuator Type ES0040.U1D04A.14K0 Air Motor

Panasonic AIG32TQ02DR Programmable Display Montior AIG32TQ02D GT32-R

Square D QO250SWN1021 2 Pole 50 Amp Sht Trip Circuit Breaker. Type QO

Eaton Cutler Hammer FD3060 Circuit Breaker 60 Amp 3 Pole. Type FD 35k

Eaton Cutler Hammer HFDDC3125LA0205S2205 125 Amp 3 Pole HFD-DC Circuit Breaker

LOT OF 7 Allen Bradley Push Pull Start Stop Buttons. 800H-FRXNP16A7, 800T-FXP16

 Type 700304-3 Brush Her With 20C Center Clip

Allen Bradley 1756-HSC Series B ControlLogix High Speed Coter Module

Allen Bradley 1756-IF16 Series A ControlLogix Analog Input Module

WATTS 0899245 RK 957/957RPDA RT 6" EPDM Check Total Rubber Parts Kit Nos

Allen Bradley 1756-OF4 Series A ControlLogix Analog 4 Point Output Module

Yaskawa CIMR-VU2A0004FAA Rev A V1000 AC Drive

GE THQL2150GFI Circuit Breaker GFCI 50 Amp 2 Pole General Electric Grod Fault

Allen-Bradley 20-750-ENETR 750 2-P ENet/IP Module MFG  Ver. 1.002

Eaton Cutler Hammer DS200EK1 Auxiliary Contact Kit 10316H89

 Allen Bradley 800H-FRXTPH16RA1 Ser F Red Push/Pull Buttons

Allen Bradley 1756-IF16 Series A ControlLogix 16 Point Input Module

Square D 9001BW240 600 V 5 A Start/Stop Pushbutton Control Station

Allen Bradley 440R-D22RGuardmaster Dual Input Safety Relay

Allen Bradley 1746-NO4V Series A SLC 500 Analog Output Module

Murray Crouse-Hinds 200 Amp 2 Pole Type MD-A Circuit Breaker MD2200 240V

ASCO Red Hat JB8042C55 SOLENOID VALVE. Fuel Gas 20 PSI

Eaton Cutler Hammer GD3070 3 Pole 70 Amp Circuit Breaker GD 22K

Eaton Cutler Hammer GD3080 3 Pole 70 Amp Circuit Breaker GD 22K

Hubbell HBLMITL 30 Amp 480VAC, 3 Phase, Disconnect Interlock Switch HBL2730SW

Schneider Electric Telemecanique GV7 RE40 Med Case Circuit Breaker 24-40a Amp

Eaton Cutler Hammer HFD3020BP10 HFD 65K 20 AMP 3 POLE 600V Circuit Breaker

Allen Bradley 1762-OW16 Series B MicroLogix 16 Point Relay Output Module

Hubbell HBLMITL 30 Amp 480VAC, 3 Phase, Disconnect Interlock Switch HBL2730SW.

Cutler Hammer Eaton GFCB240 Grod Fault Circuit Breaker Class A 2-Pole

LANTECH 55002405 LOAD CELL MOTOR CONTROL BOARD

Carotron Dancer Position Card D10541-000

Allen Bradley 1734-IE4C Series C Point I/O 4 Point Analog Input Module

Allen Bradley 702-COB93 SIZE 2 Contactor 45 Amp 600VAC

 BR Automation 5CFCRD.1024-06 Swissbit Compact Flash Memory Card Module it

Allen Bradley 800H-DPH16 Series C Start Stop Push Button

Allen Bradley 1756-OA16 Series A ControlLogix 16 Point AC Output Module

Allen Bradley 440R-D22R2 Series A Guardmaster Dual Input Safety Relay 24V Module

WATTS RK909 RC2 6. 6 " Second Check Rubber Parts Repair Kit. 0887228

Westinghouse Cutler Hammer QCC2200Y 2 Pole 200 Amp 240V Circuit Breaker. *chip*

Allen Bradley 74A288 480V 60Hz 440V 50Hz Contactor Operating Coil.

 Allen Bradley 74A288 480V 60Hz 440V 50Hz Contactor Operating Coil.

Allen Bradley 800H-3HC4R Stainless Steel 3 Button Enclosure

 Bussman KRP-C-800 Hi Cap 800 Amp 600V Time Delay Class L Fuses

CLEAN REES 04945-000 Rope Operated Sequence Switch

WATTS LFRK 909-CK2 2 1/2-3 Second Check Repair Kit. 0794101

WATTS AK 909HOSE - ASSY 2 1/2 - 4. 0881486

Eaton Cutler Hammer GHB3020 3 Pole 20 Aamp 480V Type GHB Circuit Breaker

WATTS RK 909RPDA - RC1 10. 10 " First Check Rubber Repair Kit. 0887253

Furnas Siemens 11CB3BD Size M-0 Motor Starter. 3 PH

Murray MP230GFP 2 Pole 30 Amp Type MP-GT Grpd Fault Circuit Breaker. *chip*

Eaton Cutler Hammer FD3020L 20 Aamp 3 Pole FD 35K Circuit Breaker

Allen Bradley 22A-D4P0N104 Series A PowerFlex 4 AC Drive 1.5kW/2HP 3Ph 480V 4A

06 Allen Bradley, SPRECHER  SCHUH Terminal Blocks. 1492-W4 V7-W4 V7-WG4

Square D 8736 SDO2 Size 2 Reversing Starter 110/120 VAC Coil

LOT OF 10 Crouse Hinds Adalet Explosion Selector Switches/Pushbuttons, EMP-6W

Square D FHL3605016M 3 Pole 50 Amp Mag-Gard Adjustable Trip Circuit Breaker

LOT OF 12 Cooper Bussmann Buss 663 Class H Fuse Reducers

Square D KHP36000M 250 Amp Med Case Switch Circuit Breaker

Telemecanique Schneider Electric GV7 RE40 Med Case Circuit Breaker 24-40a Amp

 Crouse Hinds Allen Bradley Enclosure Switches. 800H-1HZX7, EDSC2194

Dayton 2E728 Line Voltage Temperature Control Thermostat 30-110F 8-9A 120-240VAC

 Pushmatic ITE Gould P220 2 Pole 20 Amp Circuit Breaker

 Lutron Skylark Dimmer for Halogen and Incandescent Bulbs, Single-Pole, S-600P-WH

 Lutron DV-600P-IV Diva Dimmer 600 W Single-Pole Ivory Incandescent/Halogen

 Allen Bradley 1756-PA72 Power Supply, 1756-A10 Rack Chassis ControlLogix

 Square D 8536SCG3S Motor Starter NEMA Size 1 440/480V 50/60Hz Coil

 Square D QO250SWN1021 2 Pole 50 Amp Sht Trip Circuit Breaker. Type QO

 Allen Bradley 1762-OW16 Series B MicroLogix 16 Point Relay Output Module

CHROSZIEL MATTE  W/FILTERS AND PELICAN CASE CLWAH-F4,8 CF-SS/130

TSTC12AE Simple Torqon 1" Drive Electric Torque Control Wrench 450-900ft-lb

Navistar International 1890254C96, Mfg, Assy Fuel Filter W/Heater

IMPCO E2033001B ELECTRONIC PRESSURE REGULATOR

WARN 90110 Gen II Trans4mer Winch Carrier Black FRREE

Markel Products Company Fan 208V 500W 3PH  

 Valterra W01-2106NSF RV HIGH PRESSURE WATER SUPPLY LINE HOSE HOT C 400FT

Dometic Blizzard Turbo Replacement AC CondenCCH7 710003035 RV VAN LIFE

SOUTHERN STEEL 10601E RHSB L-L 32D 2 INSTITUTIONAL MORTISE LOCK LOCK SET JAIL

SOUTHERN STEEL 10514 RHRB L-L 32D 2 INSTITUTIONAL MORTISE LOCK STORE DOOR JAIL

 Wabco 4725001230 ABS Modulator Brake Valve

SOUTHERN STEEL 10501 RHRB L-L 32D 2 INSTITUTIONAL MORTISE LOCK PASSAGE JAIL

Drive 11S35L0045YN1000102RLU, 35L1208, 35L0908097, 110-35L0827-01 MCC3-V1

 Genuine Frigidaire OEM 316429800 Dual Oven Relay Board

 Valterra W01-2106NSF RV HIGH PRESSURE WATER SUPPLY LINE HOSE HOT C 200FT

SolarEdge SE ZB AP1168A-ZB-01-FW2 AP1411A-RS-02 SE-ZBGW-B-S1-NA WITH EXTRAS

 OF 4/1 GALLON JUGS OF 3M Soil Retarding Carpet Shampoo 08205 NOS S

IDTI 21.5 " In-cell Multi-touch Screen IS215RW INTEGRATED DIGITAL TECHNOLOGIES

DELCO REMY 1101724 1949-50-51-5212-Volt. Model TD-18A True-Tractor generator

REBUILT DELCO REMY 1102032 12V GENERATOR FITS STUDEBAKER

 W11454741 Genuine OEM WPL Washer Gearcase Replaces W10006378, W10006402

  W11454741 Genuine OEM WPL Washer Gearcase Replaces W10006378, W10006402

Delco-Remy Generator 1102072 REBUILT GENERATOR 12V

Genway Video Monitor 5.” TFT CM-02NERV1 Color indoor ph

OEM  GE WH49X10035 2-Speed Electric Motor Kit

 OEM  GE WH49X10035 2-Speed Electric Motor Kit

AVCO Ball Valve 1000 Series 2" Model 1113C6-SE  

REBUILT DELCO REMY 1101678 GENERATOR 12V

 OEM 2017-22 Ford 6.7L PowerStroke DEF Diesel Exhaust Fluid Pump HC3Z-5J229-B

OEM  Kenmore Elite Washer Spider Spinner Support MHW62141203

NOS MAYTAG GE 0G00902899 OVEN GLASS DOOR ASSEMBLY NOS

 Valterra W01-2106NSF RV HIGH PRESSURE WATER SUPPLY LINE HOSE HOT C 100FT

Kimtech* KIMWIPES Tissue 4 2/5 x 8 2/5 286/ 30 es/Carton 34120

PROVEN BR54128 Disc Brake Rotor For 2005-2016 Ford F-450 Super Duty Front

Genuine MAYTAG Range Electronic Control Board 74008098 OEM  

 OEM Ridgid 43460, LARGE 100T GEAR

PROVEN Disc Brake Rotor-XL, Cab and Chassis Rear,Front IAP Dura BR900359

 GE 5KH46BT44S For Maytag Dryer Drive Motor Assembly 4128

OEM  Fasco A138 - Inducer Blower (120V, 1 Speed)

OEN  Century Motors ONR6406 OEM Direct Replacement Motor

FSP Electric Motor Kit 485932 485936 GE Dual Shaft 3-Speed 230 Volt NOS

CASE OF 50 HENRY SCHEIN DISPOSABLE LAB COAT 900-4676 XL FULL LENGTH FLUID RESIST

 Carrier 22"Dia 32Deg 1/2" Cw 4Bld Fan OEM LA01AD022 PROP FAN

 Xerox ColorQube 8700 Main Controller Board / Formatter 960K72563 MT9234SMI

Frigidaire Refrigerator Evaporator Defrost Kit 5300162506 NOS

OEM  Whirlpool Range Oven Control 8053976

OEM  Whirlpool Fridge Control Board w/ Dispenover, Black W11049912

STARTER FITS SMOBILE CUTLASS DELTA 88 PONTIAC FIREBIRD LEMANS 1998217