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

Peterbilt 817096 Knuckle Assy

Port A Cool PACA07001A1 Portacool Apex 700

A0002570377 Clutch Booster for liner

Case 84246180 Flywheel Baler

Rex Roth R902074698 Hydraulic Axial Piston Pump

710773F710A1 Cover Sub Asm Rr Seat Back for Toyota

International ETN0973148 Knuckle,Strg Rtw/Bushing Asm

Agco 5117236 Differential Asm

Axletech A23235Z1716 Case Assy Diff

Case LR00976 Jack Body

Hyster 4630723 Lift Cylinder

Shyft Group Inc. 0809-PP2-537 Driveshaft 1810 Tl=42.15

Volvo 1523008 Final Dri

Paccar L29-1133-200R *

Aftermarket AZ57641 Frame

Axletech 3892M3965 Gear, Plan Ring

Kobelco VA3094891801

8J3762 Cylinder A for Caterpillar

Horton 99A9682-2 Dm Advantage Two Speed Fan Clutch

Deutz Corp 0223-1502 Cyl Head

International 4047070C3 Pipe,Turbo , Low Cab, Swb

4N0873 Air Clnr G for Caterpillar

DW 02800 DW  Stanadyne Fuel Pump

Komatsu 20Y-60-22360 Case

4V1706 4 V1706 Other Parts for Caterpillar

Aftermarket F434453 Ring Gear  Pinion

Wirtgen Group 11317 Wheel

Fairfield Manufacturing Co RA758SPSET Gear Set

Kalmar J022992 Cover

Paccar 816211CLK Set Diff Pinion

Aftermarket RE538186 Engine Overhaul Kit

Doosan 2.430-00302 Housing Flywheel

4205399 Power Supply for Caterpillar

Asv 758090-51300 Pump Assy Injection

Dana 513924 Differential Ring And Pinion 4.10 Gear Ratio, 17.7 In. Ring Gear

Axletech 3892H5520 Gear Drive

Hyster 2045869 Cyl Main Rh

Hyster 1302669 Tire  Hub Asm

Aftermarket 9111160 Unit Standard

Case KNV22650 Hydraulic Cylinder

Case KNV22670 Hydraulic Cylinder

Aftermarket AR49414 Shaft

Hyster 1509189 Tube Exh Weldmnt

Agco 72268364 Left Hand Shaft

1164585 Housing Axle for Caterpillar

Icon 78734T 20 Up Gm Hd 0 2' Rr Shock Sys W/ Tu

DW 170-032-0234 DW  Holset Turbocharger He351 Cw for Cummins

Case 500330967 Cylinder Head

Fab Fours GM24Q62611 2024 Hd Black Steel Elite Senso for GMC

Kobelco PE01V00005F1 Cylinder

Aftermarket RE60574 Flywheel

641333 Exhaust Gas Recirculation (Egr) Cooler 32.75in Length Detroit D for PAI

Jost AX140.G3.19 Ax Magnum Outsi

Komatsu 561-15-00580 Housing Asm

Euclid E12659702 Electrical  B

Zumbrota Drivetrain RTC1356F-1B

Alliant Power 8545725001S  Turbocharger, 6.7 L Cc 11 16 for Ford

Liebherr American 5010482 Two Stage Pump

Komatsu 41F-54-15220 Handrail

Aftermarket 9179181 Hydraulic Cylinder

Fuller K3717RX Transmission Exchange,

Aftermarket AT183334 Hydraulic Cylinder Barrel

Dana 504087 Differential Ring And Pinion 6.17 Gear Ratio, 16.5 In. Ring Gear

Kay Hydraulic B0443-13015 Base Plate Asm for Aba

Presta 131914 Ultra Cutting Creme 12 14 Oz

2146471 Cylinder As. for Caterpillar

Fuller K3715RX Reman Exch Trns

Kubota Replacement 1G491-17012 Turbocharger

Peiner 700018264 Separat Fan

Aftermarket F301228 Grate

420625000 Exhaust Muffler 1066.80 Mm Length for liner

Citgo 632496001027 75 W90 55 G 400# Sae Gear Hd Syn

Dana 513930 Differential Ring And Pinion 5.57 Gear Ratio, 17.7 In. Ring Gear

Us Tarp 16700 Gantry Tarp System No /Gantry Tarp System No /

Terex M4681000R Gear Bevel 149 Lb.Ao98;302 341

DW 170-070-2355 DW  Borg Warner Turbocharger Rs2

Hyster 1550539 Fan Assy

Case 84018636 Hub

Schaeff 5010661100 Oil Water Cooler

Atlas Automotive Equipment ATTD-RJ6BK 6000 Lb Rolling Jack (Will Call)

4355939 Clutch for Caterpillar

Komatsu 6502-12-4222 Turbine Rotor

Kalmar N5871880 Bearing Housing

Chelsea 272GCHVP-B5XD Power Take (Pto) Assembly 272 Series, Power Shift

Chelsea 272GCHVP-B3XD Power Take (Pto) Assembly 272 Series, Power Shift

Aftermarket T175629 Disc Carrier

5VV63LXHAA Multi Media Radio for Chrysler

Alliant Power AP55200 Fuel Injection Pump, Cat/Perkins C4

Doosan 240103-00105A fler for MUF

Case N9224 Differential

Muncie Power Products SH6DS6812P1BX Muncie Pto

Doosan MX513461 Shaft Assy

1767519 Head Pump for Caterpillar

Aftermarket RE515438 Turbocharger

Peterbilt D85-6090 Support Eng Front

Alliant Power AP55201 Fuel Injection Pump, Cat/Perkins C6

Aftermarket DE18869 Bevel Gear Drive

Dana 817732 E1460 I Series Steering Knuckle Assembly Left Hand, 1.5 18 Unef 2

Paccar 20RHM082F165 Interaxeldriveline

Aftermarket F381654 Intake Manif

Dana 4208761 Spicer Highway Turbine Shaft

Hyster 2790566 Traction Motor

Case CAS2078 Tool

Peterbilt R59-6108-22B0000 Door Mirror

Peterbilt 5100001-902 Seat Wr2 Lopro Hi Bk Arm Ulthr Gy

Meritor HFGF00T36 Ay Hub  Stud

Doosan D460893 Crankshaft Assy

Case KSP13250 Kit

Aftermarket U42026 Shaft

Chelsea 489GLAHX-V3XQ Power Take (Pto) Assembly 489 Series, Mechanical

Komatsu CR5043-30AM D10 D/Froller

FTLS8100000100 Chassis Wiring Harness for liner

Replacement 9J2434 Replacement 9 J2434 Other Parts for Caterpillar

Euclid E9227023 Gear Set

Dana RSP40325CF Core  Carr 41 I Rsp40 325

Dana RSP40390CF Differential Carrier Rsp40 Axle, 3.9 Gear Ratio, 41 Spline,

Dana RSP40411CF Core  Carr 41 I Rsp40 411

Tadano America Corporation 30636412 Cylinder Suspension

Tadano America Corporation 94730636412 Cylinder Suspension

Vickers 3520VQS-25A12 297DC20 Hydraulic Vane Pump

Vickers 718AR00102A Hydraulic Vane Pump

Tadano America Corporation 540620800 Sheave Assy Ihi

Aftermarket F047832 Hydraulic Motor

Utilimaster Commercial 17208038 17208038

Peterbilt 121000-1 Clutch Dm 1512

Replacement 3G1686 Cat Replacement Hyd Pump Made In The U.S.A. H for Caterpillar

Case T2442318 Chain Asm.(Ce)

Axletech 3219P4228 Brake Drum

Bendix 109603X Air Brake Compressor

Axletech A3892H3388 Spur Gear Assembly

Trp RF7385733 Air Brake Compressor

Turbo Solutions 752538-0009N Turbocharger, 2005 C13 High Pressu for Caterpillar