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

Ametek Rotron Fan Assembly 1205126 Rev 006, 012685501 1/2-AXIMAX-2EX

AMF Bakery Systems 71107669 Pump Drive Shaft SK4282, 2" Dia Keyed Shaft

AMI ADVANCED MEDICAL INNOVATIONS 14301 REUSABLE INSTRUMENT COUNTER AUTOCLAVABL

AMI Industries 1C7003-41ABE Flotation Cushion Gray NSN 1680-01-625-5779

Amico Roll Stand Base X-RS-Base for Ultrasound Imaging System

Ammco Coats 8308629 Medium Cone 2.78"- 3.46" Fits Coats Truck Balancer 6401 6450

AMPCO 12 Point Box End Striking Wrench WS-32 32mm

Ampco Safety Tools DW-3/4D2 3/4" Drive 2" 6 Point SAE Socket

Ampco Safety Tools S-83FG Round Shovel 22" Handle,9"X11- 1/4" Bronze Blade

AMPCO WS-36 12 Point Box Strike Wrench Non-Sparking 36mm 8" OAL

AMPCO WS-48 12 Point Box Strike Wrench Non-Sparking 48mm 10" OAL

AMPCO WS-56 12 Point Box Strike Wrench Non-Sparking 56mm 10" OAL

Amphenol 1026932-20 DWDM, LGX, 20Ch, 20-39, DTP, UPG, EXP, PDW-LSM12020EANN26

Amphenol 29 Position Receptacle Socket 24 Shell Size 16-22AWG

 AMPHENOL 88-569765-35P CIRCULAR CONNECTOR RECEPTACLE SIZE 17, 55POS, PANEL

 AMPHENOL 88-569767-41P CIRCULAR CONNECTOR RCPT SIZE 21, 41POS, PANEL

Amphenol Dell 48V DC Power Supply Input Connector PXNKY for EMC Poweredge MX7000

 AMPHENOL INDUSTRIAL 71-533726-32S CIRCULAR MIL SPEC CONNECTOR 32P PT

 AMPHENOL INDUSTRIAL 97-3102A36-15P CIRCULAR CONN, RCPT, SIZE 36, 35POS

 AMPHENOL INDUSTRIAL 97-3106A28-1S CIRCULAR CONNECTOR PLUG SIZE 28, 9POS

 AMPHENOL INDUSTRIAL ACA3106E24-10SB CIRCULAR CONNECTOR PLUG, SIZE 24, 7POS

Amphenol LFD24 Fiber Optic Demarcation Splitter Box & 300' Fiber Cable 12 Str

 AMPHENOL LJT07RE-25-19S LJT 19C 19#12 SKT RECP

Amphenol RF SMA PCB Right Angle Jack Bulkhead Connector 50 Ohm 901-10138

 AMPHENOL TV06RQF-21-75SA (LC) CIRCULAR CONNECTOR SIZE 21, 4WAYS

 AMPHENOL TVP00RW-25-11P MILITARY CIRCULAR CONNECTOR RCPT, SIZE 25, 11POS

AMPLock BRU-2516 Heavy Duty Boat Trailer Hitch 2-5/16" Ball Coupler

AMPROBE DM-II PRO DATA LOGGER RECORDER

 AMPRONIX CHROMAMAXX 17CDYS2W 17" LCD DISPLAY

Anaconda Sealtite 250' 3/8" RWA Reduced Wall Aluminum Flexible Metal Conduit

ANAHEIM AUTOMATION R5427030 202001F DRIVER, STEP MOTOR SINGLE AXIS

Analog In/Out Basic

Anchor Fluid Power 3/4"FNPT 5075PSI AV3 Three Way Excavator Style Ball Valve

Anchor Fluid Power 4" 4-Bolt O-Ring Flange W46-64-64

Anchor Lamina 3-1/8" ID Non-Standard Die Shoulder Bushing

Andersen 3355 WD Anti-Sway Ball 2-5/16" 16000lbs

Anderson Greenwood Crosby 951101MFD Pressure Relief Valve size 0.75x1 150PSIG

Anderson Negele 27" LN Potentiometric Level Transmitter Sensor LN005127000111

Anderson-Negele 0-160PSI Life Sciences Series Bottom Mount Pressure Gauge

Andritz Servo Valve 20L/min 315 BAR 60 Ohm/spool TBPAT

ANDRON NETZ-MOD 200W NTG 0001 MODULE 110/115V 50/60Hz 250VA

Anfield Low Speed/High Torque Hydraulic Motor BMSY-80-E2-D-S 800RPM

ANGULATA 901233 663970 SURGICAL INSTRUMENT

Annovi Reverberi AR30 Medium Pressure Diaphragm Chemical Spray Pump 550RPM

Anova Sensor Interface Box SIB-VPS-SL-2M Tank Monitor Std Temp Non-Def

ANRITSU K306C MEASURING MODULE

ANRITSU K-402B STAND

ANSA Exhaust Muffler VW39647 for 2009-2010 Vokswagen Passat

Ansell Alphatec 66670 Blue Nomex Breathable Fire Resistant Jacket 2XL

Ansell Size 9 Versa Touch Natural Blue Gloves 88-356

ANSUL HALON 1301 HALOGENATED AGENT FIRE SUPRESSION SYSTEM

ANSUL Pyro-Chem Stainless Steel Detection Scissors 439515

Anticon Gold Knit Sealed Edge Polyester Knit Wipes 492224-794PFZ

Antriebe Screw Jack Type NM3-R TR30x3 Spindle NM3-R-24:1-Tr30x3-43-1-1

Anvil 0300032000 1" Cast Iron Tee Pipe Fitting Threaded Female NPT

ANVIL 0313822223 Fitting Pipe Union, Malleable Iron, 3 in, NPT, Class 150

Anvil 1/2"x3" Carbon Steel Hex Head Bull Plug 0338203649

Anvil Cast Iron Eccentric Reducer Coupling Cast Iron, 3"x2" Pipe Size Class 125

Anvil Galvanized Malleable Iron Unions 1" Pipe Size FNPT Connection Type

Anvil GLV-7811 2" EPDM Gruvlok Grooved Swing Check Valve 300PSI 2200750038

AO Smith ProLine Ultra-Low Outdoor Tankless Water Heater 190000 BTU SEE DESC

AP Exhaust 606007 Catalytic Converter for 2003 Ford F350 5.4L 6.8L

AP Exhaust 608240 Universal Catalytic Converter 2"In / 2.5 Out

AP Exhaust 754230 Catalytic Conv W/ Exhaust Man for 2001-2005 Honda Civic 1.7L

AP Exhaust 914209 Direct Fit Catalytic Converter For Honda Odyssey 1999-2003

AP Exhaust Universal Catalytic Converter 608756 2.5" Ports, 16" OAL

APC Battery Replacement 911-0028F RBC43 For Smart-UPS SMT2200RM2U SUM1500RMXL2U

APC Replacement Battery Cartridge For APC UPS system 230V 7A2037L25834

APC TI-10SET2-B-BLACK Titanium 10" Basic 2 Piece Set Prosthetics 365Lb Rating

Ape Hanger Handlebar Bobber 10" Black for 2008-2009 Harley FLHT Electra Glide

Apem IAR3F1600 Momentary Push Button Switch SPST 16.2mm 24V DC IP65 IP67

Apex Dynamics AE090 Stainless Steel Planetary Gearbox 2 Stage 080:1 14-2000 NM

Apex Dynamics Planetary Gearbox 1 Stage 1/10 Gear Ratio 90° Angled AER090-010

 APEX X801 DIABETIC MEN'S BLACK SHOES 15 MED X801MM15

APG Ultrasonic Level Sensor MNU-2424-C35-B83, 35' Cord 1-25' Range 2" NPT

Apollo 2" Full-Port Ball Valve Lead-Free Bronze, Copper Retainers 300 CWP P x P

Apollo 6" Butterfly Valve Cast Iron LD14106BE11A Aluminum Bronze Disc

Apollo 80-100 2-Piece Ball Valve Inline 3" FNPT Bronze Body

Apollo 88A20901 Heavy Duty Ball Valve 2-1/2" Flanged End Style 285 PSIG

Apollo 88A24001 Full Port Ball Valve 3" Flanged 316SS Carbon Steel SEE DESC

Apollo V3000m Overhead Projector 11.25" x 11.25" Glass 3000 Lumens

Apollp Press Reducing Tee Copper Tool Module 3" x 3" x 2"

 APPALACHIAN 6914 ENCODER PULSE GENERATOR

APPLE IPAD 6091l-1402C A1395 LCD SCREEN LP097X02-SLN1

Appleton 60A 4 Pole Clamping Ring Plug ACP6044BC

Appleton BUB200-M Conduit Outlet Body 2" Bore Mogul Type UB

APPLETON Conduit Body With Cover/Gasket Mogul C 4" Malleable Iron BC400M

Appleton EEYDM-250AL 2-1/2" Aluminum Vertical Drain Seal Fitting Male-Female

Appleton EYA400 4" Explosion Proof Seal Off EYS O-Z/GEDNEY Conduit Seal

Appleton Flexible Conduit Coupling .92" x 5.70" x 10" Bending SEE DESC

Appleton RB75-50 3/4" x 1/2" Steel Reducing Bushings

Appleton TMC2X Connector For Jacketed Metal Clad Cable Size 137 1-1/4" NPT 4X

Appleton Union Male/Female 4" Explosion Proof Aluminum Fitting UNY400RA

Applied Materials 0200-17845 Lid Ceramic Mixing 300mm CVD-CO Gas Manifold

Applied Materials AMAT 0010-23344 200mm Ultima Dome Temperature Controller

Applied Materials AMAT 0190-19899 REV 001 Flow Switch Manifold Mount 119292-1

Applied Materials Isolator Lid Top Ceramic Volta 0200-15328

Applied Materials Producer Heater Lift REV 2 0010-49344 SEE DES

Applied Materials Reactor Assy DPA Assortment of Parts for P5000 & 5200

 APPLIED MOTION N0400-151-B-000 400W SERVO MOTOR

APPLIED MOTION SSM23IP-2EG SSM 23IP-2EG STEPPER MOTOR

APPPALACHIAN ELECTRONIC SCANNAIR P/N F104408 RECEIVER

Approx 17,000 Flat Cylinder Tungsten Carbide Buttons 40lbs 6mm x 3mm YG11C Grade

Approx 250' 5/16" Stainless Steel 7x19 Strand Aircraft Cable w/Flemish Hard Eye

Aprox. 100' 5/16" Fuel Line Hose C-677-D11-CE Type B1-15 EPA Compliant SAE J1527

Apsco Hydraulic Valve Assembly 20-UNI-3S-11 & APG 20-H-10 Handle Sets

Aptiv F900800 Automotive Connectors 2WF Apex SLD Conn Wire ESD Brown

Aputure Amaran PT2C LED Tube 2' RGBWW 195Lux Bluetooth Dimming

AQ Matic 48 Stager R048-SS75-11058 #4511058 6-Port Valve W/ 1075750 24V Motor

AQLighting 150' Warm White LED Rope Light Kit 120V AK-LED-SLF3-WW

Aqua Lung Legend 1st & 2nd Stage Scuba Diving Regulator With Gauge Set

AQUA SnakeEye III VIDEO INSPECTION DISPLAY UNIT RP-01-3

Aquafine 16518-3 Electronic Ballast for CSL, SCD and MP2-SL

Aquasana EQ-WELL-UV Rhino Whole House Well Water Filter System

AquaStar PLP300S 3HP Smart Pipeline Pool Pump Variable Speed Smart Model

Aquatrol 69F1A1M2U1, 2" Liquid Relief Valve 2" MNPT X 2" FNPT 206GPM 200PSIG

Aquatrol Adjustable Relief Valve 1-1/2"

Aquatrol Series 69 SS 69C1B1M2U1 Liquid Pressure Relief Valve 600psi 132 GPM

AR North America SW060-LC 3000 psi Waste Bin Cleaning Head 200 bar SW060-LC.07

ARB 3562060 Bumper Fitting Kit Hardware For ARB 3462020 3462040 Bull Bars

ARB CKMTA24 Twin Air Compressor 24 Volt Compressor Body only SEE DESC

ARCH 5900-0006 PROBE for Opt-Diss Distek Fiber Optic

Ardent Concepts TR8X1-1.27-03VF-2, 8 Channel 1.27mm Pitch Terminate-R Cable Assy

Argco 2.5" BFLY-G300 Grooved Butterfly Valve with Tamper Switch

ARGCO 2-1/2"MNPTx 2-1/2"FNPT 300PSI Straight Fire Hose Gate Valve W/ Male Swivel

Argo Hytos Interchange Hydraulic Solenoid Valve RPEW4-103Y11/12060EW1R51

Ariel AC-3984 UNL Pist Assy 6-1/4 & 5-7/8C for Gas Compressors

Ariel B-0773 Crosshead Pin for Compressor Model JGH E K T

Ariel Corporation B-1437 Crosshead Pin for JGC D F

Ariel Discharge Suction Valve For Air Compressor A-10412-A

Ariel Discharge Valve 70CRE MTX DS 1/8" B-8092-DD