福建中立恒自动化设备有限公司

一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。

它采用可以编制程序的存储器，用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令，并能通过数字式或模拟式的输入和输出，控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体，易于扩展其功能的原则而设计。在工业生产的各个领域，机械加工企业为了提高生产效率，采用机械化流水作业的方式，对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代，生产线承担的加工对象也随之改变，这就需要改变控制程序，使生产线的机械设备按新的工艺过程运行，而继电接触器控制器系统是采用固定接线，很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多，随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。

　　发展趋势：1.向高速度、大容量方向发展

　　为了提高PLC的处理能力，要求PLC具有的响应速度和更大的存储容量。目前，有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。

　　在存储容量方面，有的PLC可达几十兆字节。为了扩大存储容量，有的公司已使用了磁泡存储器或硬盘。

　　2.向超大型、超小型两个方向发展

　　当前中小型PLC比较多，为了适应市场的多种需要，今后PLC要向多品种方向发展，特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC，其使用32位微处理器，多CPU并行工作和大容量存储器，功能强。

以下链接皆有货

 ASHCROFT H423V PRESSURE SWITCH 2000 PSI

 ASHCROFT K17M0242C11000 PRESSURE TRANSDUCER 1000 PSI

 ASHCROFT K17M02442C115 PRESSURE TRANSMITTER 15 PSIG

 ASHCROFT XLDP PRESSURE TRANSMITTER XL-5-F02-24-8T

ASHE CONTROLS 80-237 DCF50 SPEED REFERENCE CIRCUIT BOARD

Askoll M3379-65468 Clothes Washer Drain Pump replaces LG 4681EA2001T

Assa Abloy FG3000S90-16 Phosphate Fire Glazing Tape 16' L 5/64" H 7/16" W

Assa Abloy S88D25 Pemko Siliconseal Adhesive Gasketing 1/4" Height 1/2" Width

Assa Abloy Securitron CWB-32CL Concrete / Wood Bracket use w/ M32 Locks

Assa-Abloy ZA-32/62CL Adjustable Z-Bracket Clear Anodized Model 32/62

Associated Spring Raymond ASMZ97X300 ASMZ 97 x 300 Die Spring 300mm Length

AST PSB 530 Front Lower Control Arm Bushing for Lexus LS 1990-94

AST PSB 530 ONE Front Lower Control Arm Bushing for Lexus LS 1990-94

 ASTEC ACV15D0.8 POWER SUPPLY

Astec Power Supply Board 85261001240 / 17130104919

ASTM F2098 Pex Ring Cinch Crimp Tool w/ Light (does not include gauge)

AT Gear Shaft Made In Canada

AT&T Secure Wireless SW-ATT-SRN Indoor Siren Alarm

 ATC 0319D-134-Q-I-C TIME DELAY RELAY 120 V TIMER

  ATC 2805B006B01XX SERIES 2800 TIMER 240V

  ATC 2805B008A01XXR TIMER 120V

 ATC 2805B00A01XX TIMER 120V SERIES 2800

 ATC 3-0305E017A20PX TIMER 0-60 MIN 120V

 ATC 3-0305E-019-A-20 TIMER 0-240 MIN 305E019A20PX

 ATC 3-0314B134Q2C TIMER TIMING RELAY 120V

 ATC 3-0319E100F1C PLUG-IN TIMER TIME DELAY RELAY 0-10 SEC 120V

 ATC 3-0325A346A10PX TIMER SERIES 325

 ATC 305E021A20PK TIMER 120V 0-15 HOURS

 ATC 305E022B10PX TIMER 0-30 HOURS 240V NO EXTRA PARTS

 ATC 324C02D3CR1A01K TIMER 120/240V 1/3 HP

 ATC 7073AR4X4NLX RETRO REFLECTIVE BEAM SWITCH

 ATC 7201 7201C04QAX RETROREFLECTIVE PHOTOELECTRIC SCANNER-CONTROLLER

 ATC 7216A04QR00RX TIMER-BEAM SWITCH CONTROLLER

ATC 7232AD2X5FRX DIFFUSE SCANNER

 ATC 7685AR04F12SX PHOTOELECTRIC SENSOR

 ATC 8036AL10FL3DAXX INDUCTIVE PROXIMITY SWITCH

ATC Automatic Timer 365C-350-Q-30-PX 120V 365C350Q30PX

 ATC IFM 8057A20NL2AAXX INDUCTIVE PROXIMITY SWITCH

Atco AN1324-1R ACC Climate Control w/ 4430 O-ring 088305223

 ATHENA 4200-B-0-0=01F-00 DIGITAL TEMPERATURE CONTROLLER 4000 SER.0-999F

 ATI ANALYTICAL F12/D GAS TRANSMITTER P/N 00-1744

Atlantic 1104-4001 / C7NN3280E Right Hand Tie Rod End for Ford /  Holland

Atlantic 3013-1544 Top Link (missing bar) fits Massey Ferguson JSA1009

Atlantic Fluid Tech Check Valve MC000251

Atlantic Fluid Tech LF000051-B Block Manifold

Atlantic Quality Parts 3013-1500 Top Link 17-1/2" Adjustable Length 26" Overall

Atlas Copco 2906-0380-00 Drain Valve Kit ZR110-425 Genuine OEM

Atlas Copco 50790404 / 57112963 Pressure Gauge 0-160 PSI 2.5" Face 1/4" NPT CBM

Atlas Copco 640428-6 Bronze Bushing

Atlas Copco Hydraulic Spin On Filter 5537463100 5537 4631 00

 ATLAS COPCO LZB22-L-AR013-11 AIR VANE MOTOR 1300 RPM

 ATLAS COPCO LZL-05 VANE AIR MOTOR A054030 9000 RPM

Atlas Copco Round Proximity Switch NPN / PNP 30mm P002657920035

Atro MS50-26924 Concentric Collar 4" OD 7/8" ID

 ATS L2M-4011FKM SPECIAL OIL SEAL 266.70X304.80X17.45

Attwood 8806LP2S Portable Marine 6-Gallon Fuel Tank

ATV CV Shaft ATV-YA-3-519 / 0518-285 for Yamaha

 ATW AVERY WEIGH-TRONICS WEIGHT INDICATOR KEYPAD MONITOR

Audi Rear Left Lower Aerial Amplifier 8V4 035 225 B 8V4035225B

Auimsoco High / Low Beam LED Headlight Bulb Kit 6500K 9005/HB3 9006/HB4

Ault 3 Prong Std Power Supply I.T.E. PW125RA1203F01

AUP Motor Mount 8329 for 92-95 Honda Civic 94-01 Acura Integra

AURORA #15HB2C24D8K CYLINDER 1.500 BORE 3.000 STROKE

AURORA #15HB2C80D8K CYLINDER 1.500 BORE 10.000 STROKE

 AURORA 11HB6C32G5KN PNEUMATIC AIR CYLINDER BORE 1.125 STROKE4.000 SER 176670

 AURORA AW-8Z ROD END BEARING

Aurora S6181 Air / Hydraulic Cylinder 200 PSI Max Air 500 PSI Max Hyd 3" Stroke

Aurora S6636 Pneumatic Cylinder

Ausa 65.05223.00 Hand Brake Sensor for Dumper

Autex 180316 A/C Compressor

Automann 100.4471.10 Drum Brake Hardware Kit

Automann 177.5005 Nylon Tubing 1/4" OD x 1000ft Black

Automann 462.ES9601L Tie Rod End

Automann M5447 Threaded Spring Pin for Kenworth

Automann MLC1 Load Spring / Load Cushion

Automann MR894 Silent Block 5-7/16" C to C

Automann TRB5922 Bushing

Automann TRB6820 Torque Rod Bushing

Automatic Drive Belt Tensioner 999246 for Buick Chevrolet Oldsmobile Pontiac

 AUTOMATIC VALVE 138802-574-AA DOUBLE SOLENOID VALVE ASSEMBLY

 AUTOMATION DIRECT AC1-AP-1A INDUCTIVE PROXIMITY SWITCH

 AUTOMATION DIRECT ACUAMP ACT050-42L-S AC CURRENT TRANSFORMER

 AUTOMATION DIRECT ACUAMP ACT200-42L-F CURRENT TRANSDUCER

 AUTOMATION DIRECT ACUAMP ACTR050-42L-F CURRENT TRANSDUCER

 AUTOMATION DIRECT AEM2G71X11-3 COMPACT LIMIT SWITCH W/STAINLESS STEEL ROD

 AUTOMATION DIRECT C18B-AP-2E PHOTOELECTRIC SENSOR

 AUTOMATION DIRECT CX3-AP-1F PHOTOELECTRIC DIFFUSE SENSOR 600MM SENSING RANGE

 AUTOMATION DIRECT D2-06B-1 6-SLOT I/O RACK BASE DIRECT LOGIC 205

AUTOMATION DIRECT D4-EE-2 MEMORY CARTRIDGE EEPROM 32KW

AUTOMATION DIRECT DV-1000 DIRECTVIEW TIMER/COUNTER ACESS PANEL W/ CABLE

 AUTOMATION DIRECT EA1-S3MLW 3" OPERATOR INTERFACE PANEL +11519B033

 AUTOMATION DIRECT FALH-X0-0A PHOTOELECTRIC SWITCH SENSOR

 AUTOMATION DIRECT FALN-BP-03 PHOTOELECTRIC SENSOR-SWITCH

 AUTOMATION DIRECT MS4SC-CE-ADC TIMING RELAY 0.1-30 SEC

 AUTOMATION DIRECT MS4SC-CE-ADC TIMING RELAY 0.1-30 SEC.

 AUTOMATION DIRECT MTA-BASE-W143T MOTOR SLIDE BASE

 AUTOMATION DIRECT NITRA AFR2-3233 FILTER REGULATOR 1/4 NPT

 AUTOMATION DIRECT NITRA CVR-448D4-HL MANUAL VALVE 4-PORT 4-WAY 3-POSITION

 AUTOMATION DIRECT PFM1-BN-3H INDUCTIVE PROXIMITY SENSOR

 AUTOMATION DIRECT PROSENSE DPM2-AT-HL DIGITAL PANEL METER

 AUTOMATION DIRECT SL4824-RR TEMPERATURE CONTROLLER 100-240V SOLO-4824

AUTOMATION DIRECT SL9696-RRE SOLO TEMPERATURE CONTROLLER

 AUTOMATION DIRECT SVC-EHH-030 SERVO ENCODER

 AUTOMATION DIRECT TRD-N1024-RZVWD ROTARY ENCODER

 AUTOMATION DIRECT UK1D-E2-0E ULTRASONIC PROXIMITY SWITCH SENSOR

 AUTOMATION DIRECT ZIP LINK ZL-RRL16-24-1 RELAY OUTPUT MODULE 16 SPDT RELAYS

 AUTOMATION PLC DIRECT BY KOYO D4-04B-1 RACK UNIT BASE 4-SLOT JAPAN

 AUTOMATIVE INDUSTRY CAM3534 HIGH EFFICIENCY MOTOR 1725 RPM 208/230/460 VOLTS

Automotive Wire Harness Connector 8U5T-14A464-BA-000 for Ford

 AUTOTECH CONTROLS SAC-M1050-8R0 PROGRAMMABLE LIMIT SWITCH

 AUTOTECH E5N-B4096-8PPDE DIGISOLVER ENCODER

 AUTOTECH SAC-M1051-010 PROGRAMMABLE LIMIT SWITCH

 AUTOTRON E8AP10LC SENSOR CELL

 AV AUTOMATIC VALVE 407C673B7B MANUAL OPERATED VALVE NO EXTRA PARTS

 AV AUTOMATIC VALVE L2004ABAA SOLENOID VALVE

Avalon Pellinore 73019307 Satin Black Stair Bracket Kit

Avaya 700395445 50ft CSU Cable 120A

Aventics / Rexroth Pneumatic Actuator R404063449 00424805

 AVENTICS 0820.022.502 PNEUMATIC SOLENOID DIRECTIONAL CONTROL VALVE

 AVENTICS 5340051000 AIR VALVE

Aventics 8651APBK2FA00GN Particulate Filter / Regulator

Aviditi 21164AVI Single Lever Ceramic Faucet Cartridge for Kohler

Aviditi 21541AVI Scald Guard Cartridge for Delta Faucet

Aviditi 40610 / 40610AVI Brass Toilet Tank Lever w/ Chrome Plating

AYP Deck Engagement Cable 05-10891 replaces 175067 169676 21547184 532169676

 AZBIL 1LS1-JEC LIMIT SWITCH

 B&B ELECTRONICS ULINKS USOTL4 RS-422/485 USB ADAPTER CONVERTER

B&B Manufacturing QD64-5M-15 Cast Iron Powerhouse HTD SH Bushing Timing Pulley

B&B Manufacturing QD64-5M-15 Cast Iron Powerhouse HTD SH Bushing Timing Pulley -

B&E Manufacturing AS4134J101006 / 27795 Tee Connector

 B/W CONTROLS 5200-LF1 LEVEL CONTROL RELAY 52-1101

Babeyond 1950s Retro Style Cap Sleeve A-Line Dress Beige US Size Small