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

Telemecanique LC1 D2501 Contactor 230V 50/60Hz

Telemecanique LR2 D3357 Contactor LR2D3357

Danfoss CI16 Contactor 24V 50-60Hz

Aeg SH4 SH8 Contactor 577-79 Ith 20A 600V Ac 16A A600 N300

Hobart F6546B Toggle Switch 875567

Ingersoll Rand Overload Heater 50846005

Omron Subminy Timer Type Stp-n 200 V 50Hz

Siemens 3RV1901-1A Auxiliary Switch GB14048.5 /50Hz Quincy 108994-1641

Merlin Gerin 24529 Circuit Breaker D50A 480Y/277V

Omron E2A-M18KS08-WP-C2 Proximity Sensor 12-24VDC E2E-X5E2G

Carrier P291-1003 Run Capacitor 370VAC 50/60Hz

Sporlan MKC-2 Solenoid Coil 208-240V 50-60 Cy 15W

 Sporlan MKC-2 Solenoid Coil 208-240V 50-60 Cy 15W

Hobart 00-294615-00001 Temp Control

Rexroth P-067782-00000 Latch Manif With Spring R432013839 4PCs In Lot

Cleveland Range 103731 High Limit Special Control Thermostat

Severn Trent De Nora 61051 Power Module 95AMP 400V Omnipure 5556

Ross Hill 0000685444 Selector Switch

Federal Signal WB Weatherproof  Grey 8435000

Allen-Bradley 100-FA11 Auxiliary Contacts

Rhino PSM24-REM360S Power Supply 24Vdc/15.0A Redundancy Module

GSHY WK-30-S-316SS ELBOW EQUAL BODY 30MM SERIES S 316 SS

Edwards 1508-G1 24VDC - Door Release 120V

Float Level Switch Sensor Omicron 19620

FUJI ELECTRIC HH54P 24VDC RELAY  6PC LOT

SKF N12 LOCKNUT NATIONL N12 LOCKNUT - 6PC LOT

Clipsal 56SW220 Surface Switch Double Pole 20A

Rexroth P-069211-00000 Tube Fitting kit 6pc Lot

BALDWIN FILTERS BT839-10 01201106384 - 2PCS LOT

Econ-O-Grip 3" Plugs 271-535 - Cherne Industries - Taiwan - 5pc lot

Aventics Repair Kit 521 045 000 2 Seal Kit FD: 15W35 - Hungary

Weed Fiber Optics EOTec Series 6000 6A01 - 115 VAC Power Supply

Sungho MY-4SN Coil 110VAC 50/60Hz 3A 250VAC - 3pc lot

National Refrigeration Product N.5411 - 115V 60/50Hz 8A 9W CW 1550 RPM

Donaldson Unimaze HSGK Breather Air with Element Element No. BOH-07

Apollo 76-603-01 CII 400 WOG 3 way Valve Brass Body 2pc Lot

FALK Steelflex 1020T10B Cover-Grid With 1020T Hub

Ingersoll Rand Gasket - Isolation Inlet valve 39483144

Miele 4 803 341 Ball Bearing MADE IN POLAND - 4pc lot

Lovejoy 8JE Sleeve 685144 35572 - S-Flex Coupling Insert 1L824

COPELAND 050-0259-03 Morrill Condenser Fan Motor 208-230V 1550 Rpm

Emerson 0655601 Cable 4 Wire Unarmed

SWAGELOK PGI-63S-BG40-LAQX-ABN Pressure Gauge 0-580 psi PGI63SBG40LAQXABN 63mm

Dichtungssatz TYPE ACE 038N4 G057M VG JOINT KIT

Proserv SEAL KIT 7401855 ½” SPM DDV HAND ASSEMBLY - SPM Valve Kit

Electromagnetic 5SHT-401 Current Transformer Ratio 400:5A

Aeco Magnetic Sensor SMC-12LMSil LC10 V=400V I=3A P=100Va

PCB 2197095-17 Cameron 32 x 1A.5 PCB Board

Clover Tool Co. HRT-M Manif for Torque Hydraulic tool HRT-15

Hobart Corp. 270318-1 Valve Coil 115V - 00-270318-00001

LIEBHERR 5502096 OIL FILTER 550 2 096

Plast-Matic GGVS1-PV Gauge Guard ¼ Npt

AB 800H-JR2 Ser F Nema Type 4,4X,13 A600 Q600

Conexa RHD22-L CE 4571 Hydraulic Fitting

Calex 9053 DC/DC Converter For Cameron

C3controls W22IPB-EG Pushbutton 80302102

HENRY MI-30-1/4" DRY-WET REFRIGERATION MOISTURE INDICATOR MI30

Carrier Transic 66-U-1-1723-3 Circuit Breaker 3pole 600V 5060Hz 29A

Square D QOB230HID 120-240V 50/60Hz Interrupting 10000A

Blackmer 333049 Mechanical Seal

Baldwin Filter BT839 MADE IN USA - 2pc lot

 Baldwin Filter BT839 MADE IN USA - 2pc lot

Miele 3 090 741 Seal

090605/1 Pressure reducing Valve

Telemecanique LA9 D4043 LA9 D40.42 LA9-D.02

Telemecanique LR1-D40 Overload Relay

MOELLER DIL A-XHI22 CONTACTOR 24VDC GERMANY

C3 Controls W22PB-FK W22Pb Flush Cap Black 80302100

Gould Fuse gl-gG 80A 690V 8W

Swagelok SS-8CP5-1Check Valve 396949001

Tomar Electronics Fire Alarm for Hazardous Location

Mitsubushi Contactor Coil S-A220 380-415V 50Hz 400-440V 60Hz

Mitsubishi Contactor Coil S-A150 S-A125 380-415V 50Hz 400-440V 60Hz

Aker Kvaerner Maritime Hydraulics Direct Pressure Sensor Connection BA0057877

Telemecanique(Square D) LRD3355 LR2D3355 30-40A Thermal Overload Relay

Hobart 00-119292 Outside Rinse Pipe-Bracket - 2pcs lot

Terminal  Control 14-05-14 Low voltage control 24V IP66

Siemens Q230 Circuit Breaker 30A 60hz 120 / 240V - 2pcs lot

 Siemens Q230 Circuit Breaker 30A 60hz 120 / 240V - 2pcs lot

Miele 4 842 085 Electro Magnetic Lock Germany

WIKA Pressure Gauge -1/1.5Bar 20psi - 233.50.100 - Back Conn. 1/2" BSP 100mm

Honeywell BZE-2RN Micro Switch

 Honeywell BZE-2RN Micro Switch

Forum 480311422 Float Valve DPFV 1F-2R Model G HSN H2S Service

Nakamura DM20 65W4 Selector Switch

Solberg (Quincy) 110377E100 Air Filter

Philips Advance 7C240P40R Dry Film Capacitor 24MFD 400Vac 50/60Hz

Philips Advance 7C240P40R Dry Film Capacitor 24MFD 400Vac 50/60Hz

Parker Filter 131350013 - 932670Q 10Q XJ National Oil Well

Bearing TA5540Z TKO Japan Needle Roller Bearing - Heavy Duty - 3 pc lot

Telemecanque XB4 BVB5 089194 Pilot Lamp Amber LED 24VDC - 2pc lot

SHINKO Ind. Ltd. STRAINER R080827045 - 352046 - 672Q0096-K040A KHI

PARKER 24 STX-SS MALE BRANCH TEE TRIPLELOK-SS 316 908T

Wilkerson B28-04-FL00 - (1) 6D760 Replacement Element FRP-96-653

PARKER 16 GBU-SS FERULOK FEMALE CONNECTOR

Miele 9 233 390 Tensioning Spring

Allen Bradley 800T-A2A Ser T Push Button Flush Head Black 800TA2A - 2pc lot

6Ft.Flow Meter Cable With 7 Pin Connector - Shaffer - 86-89683

Parker G0005152 Elbow,90Deg-375Mjic 500M Orb-Shale Shakers - 2pcs lot

Ingersoll Rand 32268906 O-Ring - 12pc lot

Telemecanique LX6D401106 / LX6D401106AA Coil 100V 50/60Hz

TOGI PCJ-980003 Circuit Board TOGI IF98003 - 80630

Allen Bradley 800H-JP91KB7 Selector Switch

Potter  Brumfield PRD-60023-2 Control Relay 120V-60Hz 100V-50Hz 9C063 -2 Pcs

Barber Colman Co. USA - AL110-0-0-1 Fluid-Air - Solenoid Air Valve 120VAC 50/60

MP Filtri MF1003A10HB Filter Element

Aker Wirth 20611375 Fittings PA0084573

Schneider C60N C32 400V~ 3pc lot

Parker hyd. 483-3/8B2-2 Check Valve 48338B22

Sirai L182B48 Solenoid Valve - Coil ZA10AFL 24V 50Hz

Bi-Metal Thermostat 46-858640 Yamaguchi

CHECK VALVE 550538-1 NON RETURN VALVE

Varco Distance Ring 30160603 - 3 pc lot

Rexroth P-053460-02 Repair Kit B995

QUINCY 22749-237 O-RING VITON 2.25 ID - 3 PCS LOT

Southern Avionics Co. DMOD SRP29800 Rev.C 021001

OMRON MY2K 24VDC RELAY MADE IN JAPAN  4PC lot

Rexroth R431003412 - P54653 Spring for exhaust valve - 4pc lot

Allen Bradley 800H-R2 Push Button

er Conn.Male Flare

KROM SCHRODER DWG 150U PRESSURE SWITCH

Magnetic Coil - SC6 - 400-440V 60HZ - ASEA Skandia

Flow Ezy Oil Strainer 30-1 1 2-100 - 7818146 For PS2-1000 Power Swivel Nov

Johnson Controls P70AA-118E Low Pressure Control 4E038

Cutler Hamer A1BCN0 Nema Size Max 3 Ph Ratings 28 A - 115V-2HP -200V-7.5HP

Omron HC3A-A Solid State Multi-Function Timer, 12-240VDC, 24- 240VAC

Benshaw RSC-32 Magnatic Contactor with LH GTH-40/3 Thermal Overload Relay

Varco Extension Pipe TEE 5653388S 37/37 - 6 pc lot

Telemecanique LC1D09P7 Contactor 230V 50/60Hz

Ghmore 6300506 Plunger

Lovato 11 RFA25 5 Thermal Overload Relay Ui 690V

Telemecanique XAL B102 Control Station