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

Aftermarket AT340666 Wiring Harness

Doosan MX511216 Brake Head Assembly

3505935 Support As L for Caterpillar

Aftermarket AT180912 Support

39183-SDR-A24ZA Cont *Nh482 L* for Honda

Hyster 1664126 Valve Pilot A4 Vs Drg V

Komatsu 207-04-J1211 Pump

Bonfiglioli Hydraulics BN 200L 4 230/460-60 IP55 CLF B5 CUS Electric Motor

Bonfiglioli Hydraulics 8D8302010L Electric Motor

Hyster 1670416 Joystick Asm

Trp RF59934QS Qcc Aft Comp 8 Gr 125 Mm 1

Komatsu 561-46-A1640 Bracket Susp Str

Zillion Hd 1006A100A95532R M100 Mechanical Fuel Pump

Hyster 4047109 Ihr Kit

25FL467007 Cv Axle Assembly for liner

Komatsu PSTKIT017 Pl 6 D114 Kit

Peterbilt 16-06824 Multi Purpose Wiring Harness

Komatsu 209-62-77511 Joint

Dana 8100115 Dana Spicer Kit Chg Pump

Case 79035709 Shaft

Marmon Herrington MVG201056 Output Shaft

Liebherr American 9063595 Seal Kit F.Piston Rod Bear

Case 87545661 Transmission Housing

2244198 Motor Gp Hyd for Caterpillar

681211 Turbocharger 12.7 L; Detroit Diesel S60 Engines Application for PAI

Dura Lite FR2C Charge Air Cooler *D

Case 87399058 Valve Hydraulic

Allison 6775678 Carrier

8U5350 Cylinder Asm for Caterpillar

Komatsu 1172840C1 Shaft

3732012 Harness As for Caterpillar

Hitachi 4468444 Seat

Komatsu 716676C1 Gear

Meritor A395044 Gear Set Serv.

Case LJ015270 Governor

Agco AG060860 Hyd Cylinder

Komatsu 208-54-58341 Cover

Komatsu 220489H3 Plate

4945195 Mount for Caterpillar

John Deere AT161030 Dbl Joint Asy

Launch TORQUELINK X 431â Torqueâ Link

F4XY12043B13F Module for Ford

F4XY12043B13D Module for Ford

Replacement 2063553 Replacement 2063553 Other Parts for Caterpillar

Chelsea 282XDAJX-A3XD Power Take (Pto) Assembly 282 Series, Power Shift

Komatsu 14X-11-31160 Yoke

Peterbilt 13-05168 Hood Pivot

Aftermarket 840797400 Valve Section

Case 72111334 Plate

Komatsu 96721340 Pipe

Aftermarket AH204464 Door Assy, Rotary Screen

Hyster 1472778 Shaft

Holman 4GMACD Gm Combo Aluminum P/S Ez Drop Down

Zumbrota Drivetrain RTC3023G-2 Mp3023 Transfer Case For Gm 08 '13 1500

Komatsu 7831-68-4103 Panel

Schaeff 6202790020 Blade

Aftermarket 4296402 Wiring Harness

Komatsu 1200293H7 Harness

Komatsu 114054C91 Pump

Aftermarket AT260769 Housing

Kobelco 2412N483F1 Link

Case 76090703 Cylinder Lift

Hyster 1624463 Support Stator

International 365941C1 Gear Intermed T Case

Liebherr American 11004103 Spring Assembly Cpl

Aftermarket AT110522 Link

Case 6913230 Motor Hydraulic

Case 02361600 Spindle

Aftermarket T21570 Spindle

Case 72LH-53110 Cover

Komatsu 5030174 Joystick Lever R/H R/B 506

Komatsu 6206-41-1302 Camshaft Asm

Case 76195565 Valve Hydraulic

Shyft Group Inc. 9900-103-062 Pump

Hyster 2100092  Lift Cyl Assy

Liebherr American 9414048 Sliding Window Left

Kobelco YY13E01169P1 Harness

Liebherr American 11694594 Seal Kit

International SLTPL7000 Wheel 5 Th Wheel Air Slide

Hyster 1471004 Selector

Mack 25502822 Multi Purpose Ring Gear Bevel

681210 Turbocharger 14 L; Detroit Diesel S60 Engines Application for PAI

Garrett 856801-5026S Turbo Assembly Kit T3 / V Band 0.82 A/R

Case 2458206 Toggle

Euclid E12668565 Plate Weldment Bumper Ext

Hyster 2086305 Seat Swivel Cloth W/E

Aftermarket AT129550 Wheel

Dana 504197 Carrier Sub Assembly (Carrier And Caps Assembly)

Zillion Hd 1006A100A9274-13R M100 Fuel Pump

Komatsu 42U-17-H0T16 Gear Pump

Komatsu 424-64-H7120 Valve Remote C0 N

821110C200 Wire Engine Room Main for Toyota

Case 47394331 Module

Marmon Herrington RF221077 Oil Pump Asm

5291171 * for Caterpillar

Atp Transmission Parts 101404 Exhaust Manif

Case 71400928 Spring

2029782 Disconnect for Caterpillar

Aftermarket AT303579 Wiring Harness

AxleTech 740151244A01 Shaft Universal

AxleTech 740151245A01 Shaft Universal

Dana 801524 Dana Spicer Cover

JL7Z7804338BC Panel Instrument for Ford

3G3019 Tube A for Caterpillar

6378271RX Turbocharger Actuator for Cummins

8211602241 Wire Engine Room Main for Toyota

Parker Hannifin TK0250K5360 Aaab Hyd

Case KHR3927 Heater Asm.

Dana 2106249 Dana  Oem, RP Set

4008511520 Hydraulic Abs Modulator Smart Trac Series, Atc, 500 K Wet for Wabco

Komatsu 20T-63-91120 Rod

Paccar A92-1106-5626F4001 *

Pai 209960X Fuel Injector Kit ; Isx Engines Applica for Cummins

Garrett 846098-5002S Super Core

Garrett 846098-5001S Super Core

Bezares Usa 4110XEN751DA Power Take (Pto) Assembly Pneumatic Shifting,

Bezares Usa 4110XEN751IC Power Take (Pto) Assembly Pneumatic Shifting,

Bezares Usa 4100XEN013RJ Power Take (Pto) Assembly Pneumatic Shifting,

Bezares Usa 4100XCN013RJ Power Take (Pto) Assembly Pneumatic Shifting,

Bezares Usa 4100XJN011IC Power Take (Pto) Assembly Pneumatic Shifting,

Komatsu 4876184 Lubrication Pump

Dent Fix Equipment DF-505/110 Maxi Dent Removal System

Agco AG146129 Pump

Case 317355A1 Plug

HLD RK351UB1 Rebuild Kit (Xa 351 Ub) for liner

Asv 129C20-16220 Case Doc

Zumbrota Drivetrain RTC3023G-1 Mp3023 Transfer Case For Gm 07 '13 P/U

Kenworth A33-1046 *

Garrett 787876-0003 Bearing Journal

Komatsu ST8618-10 Rotor

Schaeff 5440000049 Cylinder (W/Nrv)

681212 Turbocharger Detroit Diesel S60 Engines Application for PAI