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

Paccar P92-5938-1G2302301 Harness Chassis 2.1 M

Marmon Herrington MT921127 Tie Rod Asm 92

Hyster S01330980003 Ac Compressor

2990601 Carrier for Caterpillar

Dana 044HU103-X Spicer Highway Hub  Disc Assy

Agco V836754846 Injection Pump

Komatsu 42U-70-11161 Rocker Arm

K-2468CLM10 Clutch Installation Kit W/ Snap Rings, Bearings, Disc As for Eaton

Capacity 10002169 Capacity Of Texas, Inc.

14-15224-000 Strg Gear Slave M100 for liner

Atlas Automotive Equipment AP-PVL-ALIKIT Platinum Alignment Kit (Will Call)

Dana 513890 Differential Ring And Pinion 4.30 Gear Ratio, 17.7 In. Ring Gear

Aftermarket AA46634 Support

Komatsu 20Y-30-32130 Cylinder

Aftermarket AN209406 Wiring Harness

0869481 Motor Gp for Caterpillar

Agco CH183-8446 Cylinder Casing

Usa Standard Gear 10852 10.5 D 3.73 Rr. RP Inst

Aftermarket F017933 Window

Case LB00628 Rod Piston

Komatsu 95261740 Lamp

Sany B220301000458 Fuel Injection Pump

Yukon YA WU-01 Spin  Locking Hub Conversion Kit For Dana 44

Aftermarket RE38946 Fuel Injection Pump

Aftermarket RE29200 Fuel Injection Pump

Peterbilt P27-1297-0101 Fuse Assy Cab Pdc 2.1 M

Komatsu 17M-71-49J50 Plate

Seastar Solutions XPA1012P Electric Power Assist Pkg. With 12

Komatsu 21W-06-21721 Wire

Bell Equip DC222449 Sensor,Nox Upstream

Mcneilus 1358237 Block Cht Ctrl 4 Coil Kimb

Wirtgen Group 2087398 Bearing Housing

Detroit Diesel DDE EA4720504902 Camshaft Housing

Alliant Power AP63690 Reman High Pressure Oil Pump, Navistar 12cc Mf Dt

Argo Hytos Hydraulics 34059402 Control Block

Kubota Replacement 49131-0 Turbocharger

Link Belt L9Y0048 Lrset Link W/C

Mcneilus 0604121 Cyl Fork

5372045 Retainer Bea for Caterpillar

Case 87023074 Dia Kit Tractor

Case 87668138 Kit

Holman 2SBF8E The Pro Rack Full Kit Service Bod

Komatsu 47483740 Clamping Pie

Deutz Corp 0118-3864 Alternator

Komatsu 42N-06-11950 Harness

Dana 309701-98 Clutch Advantage Selfadjust *D

Komatsu 56C-89-17810 Valve

Washington Scientific Hydraulic RSC06S Motor

Komatsu 1214854H91 Differential Kit

Detroit Diesel DDE 1029131 Hsg Asm

Case 8900134626 Brake Asm

6C3486 Rim A for Caterpillar

BWR104775 Engine Cooling Fan Clutch for liner

Komatsu 723-11-01810 Valve

Komatsu 17M-22-24111 Shaft

Hyster S01750230030 Controller

Muncie Power Products SH8BU6807A1PX Muncie Pto

Paccar P92-4860-2B0K68200 Harness Chassis

Fairfield Manufacturing Co AM5R110057 Bearing Kit

Epiroc 3363118705 Glide Bush

Sun Hydraulics B202-10J-B03 Hydraulic Control Valve Cartridge 6000psi

Case 87520818 Heater

4E8625 Bar for Caterpillar

Link Belt 997-077-82113 Speed Governor

Ifm CR0003 Control Module A2 Canbus M

1321398 Cylinder Asm for Caterpillar

Minnpar Replacement M0816102 Gear Kit

Aftermarket 4004465 Disk

Oe Turbo Power D91080065R Turbocharger Oil Cooled,

Aftermarket 0308602 Cylinder

Hyster 1623946 Pump

Kenworth R59-6092-221100 Mirror Aero Cab Mt W/Mtr/Ht/Cb Mt Blk Lh

Komatsu 17M-54-43181 Cover

Dana 4209206 Dana  Oem, Wiring Harness

WWS200133507 Steering Tie Rod Right Hand for liner

Case 76031533 Barrel

Yale 518897632 Lh Main Cylinder

tdas4460044200 Ecu 4 S/4 M 24 Vo for liner

Case 79071418 Gear Ring

Hyster 1399894 Valve

Delphi HM10077 Direct Injection High Pressure Fuel Pump

John Deere YZ4017673 Cover, Shift

Wacker Neuson Const Eq. 1000116662 Tilt Ram Dw50

Case 47377724 Valve

DDE23561992 Multi Purpose Hardware Suction Fan for liner

Komatsu 251684R31 Brg Set

Fabco 380-40-7 Shaft Input

Delphi HM10014 Direct Injection High Pressure Fuel Pump

Ross TAS65024AEXCH Gear Steering

Yale 580066449 f/Catalytic Conv for MUF

Case 84578774 Spindle

Meritor A13102X4262 Steering Tie Rod End Assembly Front Axle

Komatsu 562-15-22950 Plate

Axletech 3202L6382 Axle Shaft

4245228 Tube As Exha for Caterpillar

Hitachi 3856572210 Valve;Relief

Dana 4206917 Spicer Highway Caliper Brake

Case 23359 Rim

Euclid E-4709ES-B Air Brake Brake Hardware Kit

Liebherr American 9277160 Terminal Flange

1031835 Segment Lh for Caterpillar

Peterbilt B11-1025R Axle Bracket

85156018 Camera for Volvo

5375205 Bolt for Caterpillar

Zumbrota Drivetrain RTC4412F-6

Atlas Automotive Equipment ATLMA Lift Lawnmower Adapter (Will Call)

Atlas Automotive Equipment ATLMA Lift Lawnmower Adapter (Will Call)

Komatsu 5038025 Reduction Gear

Trp 0R7923N Turbo Cat C15

Bendix BW K123567SC003 Camera

Aftermarket AT307541 Spool Valve

102706 Transmission Gear Set for Eaton

65100-TM0-Y21ZZ Floor Fr. for Honda

Skyline Emissions XN0625-K Doc Kit Consisting Of 1 Doc And 2 Gaskets

Chelsea 272GDAJXA3XD Power Take (Pto) Assembly 272 Series, Power Shift

Case 86593174 Boom

Aftermarket U41831 Plate

Komatsu 612241C1 Housing

Icon 58735C Ext Trvl 2.5 Vs Rr Cdcv C

68270675AG Multi Media Radio for Chrysler

Gates 78088 Hydraulic Hose Saw 1 1/4" Shop Saw

Case 84607763 Rim

Hyster 1674385 Support

Case 100251A1 Gear

Doosan K1033436A Swing Bearing

Siemens 1LA7163-4AA96-ZT00 Electric Motor 7 11 Kw 400 V/50 Hz 460 V/60 Hz

Standard Ignition TBC610 Intermotor Turbocharger  Gas

Standard Ignition TBC612 Intermotor Turbocharger  Gas

Tadano America Corporation 34489140 Slider

Komatsu 6155-11-5510 fler for MUF

Komatsu 7823-33-3001 Controller

Bendix K149715SC Air Disc Brake