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

681209 Turbocharger 14 L; Detroit Diesel S60 Engines Application for PAI

Case 71456769 Barrel

DW 170-032-0347 DW  Holset Turbocharger Hx40 W for Cummins

Liebherr American 9883988 Servo Control Unit V

Sakai B554-43026-0 Shaft

r Valves 21057-S57EZ84 for SCHRADE

Case 81869995 Retainer

Gm 25682897 Valve Asm Brk Press Mod

Fuller S3000 Case Assembly

Paccar P92-5921-210408000 Harness Ngp Chassis

64515-SZN-A00ZZ Pillar L. Fr. for Honda

Yukon YG DS111-444 High Performance Yukon Replacement Ring/Pinion Set For Dana

Meritor DX19540 Ay Calipr Opp.

9J4682 Valve G for Caterpillar

8S6797 8 S6797 Other Parts for Caterpillar

Aftermarket AN241472 Structural Tube

Mazda TE15-67-030A Harness Instrument

Case ND122408 Harness

A09-10062-452 Drive Axle Shaft Assembly for liner

Komatsu 94139840 Sensor

Dana 070KK254 Dana  Oem, Kit, Cyl Sub Assy

Aftermarket 4228535 Cylinder

International 4029316C95 Light,Head , Led Composite, Rh

Simon Aerials 42014-0168 Pcb Power

Agco V82601500 Kit Rer for PAI

Komatsu 155-15-12150 Coupling

Mcneilus 105761C Rod Shift Upper

Doosan K9003513 Control Valve

Meritor 92NYS286 End Yoke

Terex K9003513 Control Valve

Contitech SR510X250 Hyd Hose

4724624 Manif Suc for Caterpillar

Dayton Parts 674-2105 Hd Doc

Peterbilt 2348189PEX Actuator Turbo He400

Kubota RA121-70230 Cover

Aftermarket F601466 Wiring Harness

Komatsu 17M-22-45104 Valve Asm

Liebherr American 7371836 Switch Pres 234 13161 6

Mack 3088-PT3300PAE643SA 6 Bolt Hot Shiftpressure

Weller 137300RX Weller Truck Parts

Paccar 217128 Support  Plug Asm

Aftermarket AW33972 Mast

Komatsu 157524 Control

Kobelco VAME084521 Element

Case 84801738 Tube

F7HZ9002JA Part for liner

Komatsu 104-15-45010 Valve Asm

Sheppard M100PMX Gear Asm Sgl Pwr Strg Reman.

Aftermarket AT162836 Valve Stack

Case 89500416503 Elbow Connection

Parker Hannifin L90LS-03-SE10-047 Valve

Komatsu 5052086 Arm

F8VZ17B390CA Housing for Ford

0R4382 Compressor G Oem  Part for Caterpillar

Hyster S01626570002 Wire Harness

490014GE4A for Nissan

JN 400-50020 Alternator 24 V, 90 A,

3508442 Harness As C for Caterpillar

Dana 802717 Dana Spicer Gear Kit

Peterbilt 2319706PEX Actuator Mx13 He500

4428139 Jaw Long for Caterpillar

Vermeer 277780028 Bearing Carrier / Gear Ada

PH Crane 3253R22 Gear Reducer

PH Crane 3292T17F1 Kit Gear Reducer

Borgwarner 12709880233 Turbocharger

Case PY01V00053F1 Cylinder

4723723 Bus Bar for Caterpillar

Case 85811704 Reel Hose

Kobelco VI897078-9260 Core Starter

Ridewell 2600114 Suspension

Case 40AF-9C949L Shaft

Terex L6647 Arm Brake

Centerforce 413114880 Dyad(r) Ds 10.4, Clutch And Flywheel Kit

Case 9832442 Valve Hydraulic

Mitsubishi RM00000338 Pump Injection Reman

Radiator Works HDC010179DT Rad Hd

Aftermarket BA32326 Compressor Kit

Volvo 21193084 Wires

Hendrickson 057889-005 Suspension Hardware Kit

GD9Z5427406NK Panel Door Trim Upper for Ford

Garrett 768440-5015S Turbocharger, , Hino/ Gt4082, With Actuator J for Nissan

Aftermarket AT277327 Piston

Aftermarket AT277326 Piston

Paccar M66-7181-003 Pipe Exhaust Turbo Outlet

Terex 466196TU (Sp)st Cage Platf End Mt24

Doosan 4460-231-016 Bushing

Generac Power Systems 0F4087 Tvss Module 1 Phase

Baer 4262263B Biscayne 58 70 Rr Claw

Baer 4262263R Biscayne 58 70 Rr Claw

Wacker Neuson Const Eq. 1000071230 Counterweight

Commercial Intertech 324-9120-075 Pump Assy Tandem Gear

Epiroc 9245999397 Brkt Mtg Sbc410/Ihi 28/35/55

Komatsu 79327773 Pipe

Aftermarket AH168958 Hydraulic Cylinder

Axletech A3260U1399 Flange Yoke

Yale 580030161 Armature W/O Fan

Muncie Power Products A30-A1007-MX1CBPW Power Take (Pto) Assembly 10

Aftermarket AE73191 Wiring Harness

Case TM-160 Knuckle Asm.

Case 8900134344 Shaft

Hyster 4644308  Lift Cylinder

Miller Electric Manufacturing Co. 229961 Circ Cd Assy Cntl (R)

Agco 6284135M91 Cylinder

Hyster 1480436 Joystick Ech W/Twist

Aftermarket F434768 Her

DW 165-179-2895 DW  Bendix Air Compressor Ba 922

Hyster 1457891 Induction Manif

39460-S0X-A02ZC Display *Yr169 L* for Honda

Zillion Hd 1006A100A9561-2R M100 Fuel Pump

Zillion Hd 1006A100A9275-3R M100 Mechanical Fuel Pump

Zillion Hd 1006A100A9275-6R M100 Mechanical Fuel Pump

Zillion Hd 1006A100A9274-11R M100 Mechanical Fuel Pump

Bendix K185412SC000 Camera

1461748 Cartridge Gp for Caterpillar

Dana 251795 Assy Pump/Filter

Peterbilt 5002266-3624R Driveshaft

Doosan 4656-371-035 Shaft

2552837 Adapter As for Caterpillar

Sheppard M100PAE1RMAN Gear Steering Reman

1G8062 Shaft A Cplg for Caterpillar

Case 44.21993 *

Aftermarket 9083455 Valve Flow Control Hyd

Kubota RB511-75400 Assy Cylinder, Blade

Dexter Axle 10837802 #13 Torflex 70.5hfelec Brk865hd9/16 Stud22.5u

39460-S0X-A02ZA Display Rr. *G50 L* for Honda

39460-S0X-A02ZB Display *Nh302 L* for Honda

Miller Electric Manufacturing Co. 112111 Circuit Card Asm Relay

Aftermarket R111379 Cover

International 2602886C93 Cluster Instr Ctr Mdgl Blk En

1951760 Shackle for Caterpillar

Komatsu 97060340 Bushing

22721861 Exhaust Gas Recirculation (Egr) Valve for Volvo