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

Mpa Electrical T2009N T2009n

Aftermarket AN203251 Wheel

Chelsea 541-NBJ-A-XV Power Take (Pto) Assembly 541 Series, Mechanical

Rex Roth R902433508 Hydraulic Axial Piston Pump

Rex Roth A10V-O-28-DRG/31L-PSC12K02E Hydraulic Axial Piston Pump

Aftermarket 3082621 Link

1714926000 Hood Panel Brace Fiberglass Reinforced Polyester, for liner

Trp RF99962691 Sanden Stdcomp 6 Gr 119 M

4309506RX Egr Cooler Kit for Cummins

Agco 71392699 Chaffer

Mitsubishi 0910411 Tube A

Sakai 1502-43007-0 Her

Peterbilt R230582 Crosstube Assy

Vermeer 296259053 Adapter Asm 6.625 Reg Api

Gm 20789648 Radio Asm Am/Fm Stereo  A

Aftermarket AT183345 Rod

4705522 Support Coil for Caterpillar

Aftermarket 4239571 Flow Control Hyd Valve

Magnum ME3112U 3100 Watt 12 V Inverter/160 Amp Pfc

Permco 36B467MNZA2500 Gear Pump

Sakai 1403-27111-0 Tube

8211602321 Wire Engine Room Main for Toyota

Komatsu 561-86-64111 Wiring Harne

7107317400E0 Cover Sub Asm Fr Seat Back for Toyota

7107317390C0 Cover Sub Asm Fr Seat Back for Toyota

7107317390E0 Cover Sub Asm Fr Seat Back for Toyota

7107317400C0 Cover Sub Asm Fr Seat Back for Toyota

Hyster 4008558 Kit

Mopar 68429214AG Radio

Hyster 1653951 Wheel 16 X9

Agco AG514810 Pump

Peterbilt 5601240NX Kit, Turbo Actuator

Case CASA51451 Shaft

Groeneveld Group 943.01 Central Lubrication Pump Twin 24 V

Hyster 4603551 Radiator

Yale 5820038-26 Radiator

Generac Power Systems 0C87500238 Piston S/S (Right)

Komatsu 6128-11-5112 Exhaust Manif

39460-SHJ-A11ZA * for Honda

1785101 * for Caterpillar

Komatsu 312606064 Rim,Front 2 Wd

Link Belt 1032416 Carrier Spl Winch

Link Belt 36J1909 Poppet Valve

Komatsu 560801C1 Housing

Construction Equip. C011B-61174 Spool Kit Arm 1 for Hyundai

Hyster 1497403 Piston Kit

Kenworth 3689649RX Compressor,1 Cyl Air

Aftermarket TT208950 Wiring Harness

Case 504054476 Pump Fuel Injection

Eastern Tool Warehse OTC-4241

Case 84313102 Dia Kit Harvester

Contitech XR16SC-12X250 Sae 100 R

Hyster 2783649 Lifting Motor Asm

PH Crane 36Q256D1 Valve Hing

Kalmar 923120.0329 Measuring Equipment

Caterpillar 3381088 Plate Asm

Peterbilt 2710-KIT 430 Ss 14 Ga 100 Singl W Kit

Usa Standard Gear ZA W26004 4340 Chrome Moly Replacement Axle Kit

Epiroc 3715738000 Drive Shaft

Mitsubishi 6112-40220 Armature Comp

16740-PDN-A01 Regulator Pressure for Honda

16740-PDN-A01 Regulator Pressure for Honda

Dana 236670 Dana Spicer Valve Assembly

Axletech 3802K1181 Axle Tech Genuine Axle Shaft

Case 42.1501607 Control Remote

Tramac Demolition And Attachments 86487402 Lower Bushing

Marmon Herrington R921103 Axle Shaft Long Spline R92

Case 84807541 Axle Rear

Bendix BW R5004187 Tf 750 Remfg Air

7107333E70B0 Cover Sub Asm Fr Seat Back for Toyota

Komatsu 7831-31-2100 Plate

Dura Lite DHT FR2C Charge Air Cooler

Komatsu 708-1S-04520 Cap Asm

Komatsu 94132740 Filter

Case 240308A1 Assembly

841944XOEM Egr Valve (Reman) for PAI

Fuller K4618 Endurant Hd 12 Speed Cng K *D

Aftermarket AR70354 Drag Link

IHI Turbo F41CEY-SR082B Ihi Turbocharger

Agco 4318707M1 Driveline

BW 801167 Abs Electronic Control Unit for liner

Terex 15269379 Gear Spur

Horton 99410594 Engine Cooling Fan

Dana 103517 Differential Case Kit With Cone

Yukon YGK2170 11.25in. Dana 80 4.88 Rear Ring/Pinion; Install Kit; 35 Spline

Dana 973248 Knuckle Lh

Paccar 2195287 Decomposition Reactor

Haldex 9115160100X Like Nu Ss636 Air Brake Compressor Remanufacture for Wabco

2244820 2244820 Other Parts for Caterpillar

Case 76090717 Shank

Peterbilt HDC010180DT Engine Oil Cooler Copper Brass

Dana 973228 E1002 I/E1202 I/E1322 I Series Steering Knuckle Left Hand

Komatsu 3219166R1 Cylinder

5540130630E0 Pad Sub Asm Instrument Pan for Toyota

Mcneilus 1MB488 Mechanical Seal Kit

5540130630B0 Pad Sub Asm Instrument Pan for Toyota

Komatsu 21T-62-67460 Tube

Komatsu 94041240 Hose

Doosan 4644-251-038 Disc Carrier

2949631 Clamp As. Fi for Caterpillar

Donaldson A150169 Air Cleaner Assembly 15" Sst

Construction Equip. 35D1-30311 Clutch Brake Control Valve for Hyundai

Horton 99A9964 Engine Cooling Fan Clutch

Fuller K2047 Fuller® Rt7608 Ll Basic Rebuild Kit

Aftermarket AZ27974 Frame

Komatsu 195-15-12230 Sun Gear

Niehoff B0310028 Transformer

Cummins 5511745 Module Doser Fluid Supply

Generac Power Systems 0C87500237 Piston S/S (Left)

Generac Power Systems 0A9326 Seperator, Oil Air

3V6704 Hinge A for Caterpillar

Komatsu VD4351 Rear Shoe

Case VI8972251970 Alternator

Funk Manuf. YZ4102504 2 Nd Gear

Komatsu 63615840 Bushing

Gates 86520 Hydraulic Hose Global G2 H High Temp 2 Wire Braid Hose Type At

Meritor 20RHM084B175 Drive Shaft Slip And Tight Joint Kit Meritor Genuine

Case 86836631 Drawbar

Aftermarket EJ11459 Hydraulic Motor

A01-32293-000 Engine Air Intake Hose Steel for liner

Komatsu YM729100-11700 Cylinder

DW 245-130-0025 DW  Bosch Common Rail Fuel Pump

Liebherr American 11005799 Tension Unit

Fuller 23376 Fuller® Fs Input Shaft

Agco 700728130 Spindle

Peterbilt Q21-1139-019-019 Vecu My  Sop 1322

Vermeer 296377549 Pin

Komatsu 878000652 Kit High Ambient

3002463 Spider As Fa for Caterpillar

Stanadyne Diesel Corp 05081 Part

Jcb Replacement 919/75002 Excavator Hyd. Pump

Case 47433237 Harness Wire