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
Okuma MC-60H Double Ended Stroke Hydraulic Cylinder
Niagara 4"x 2-1/4" HSS 14 Flute RH Shell End Mill 1-1/2" Arbor
Ross D2773B4001 1/2" x 1" Port Pneumatic Poppet Solenoid Valve 24VDC
TKM 6554 Durakut HSS Trimmer Shear Blade 14" x 4-1/2" x .250
Bauer SG2-S4/DK74-178 60.63:1 Ratio 26.5RPM 400V 300W AC Right Angle Gearmotor
Parker 01.50 DDF2HLT24ACX30.000 2H Hydraulic Cylinder 1-1/2" Bore 30" Stroke
Flanged Coupling Hub Sleeve 2.125" Shaft 7-7/8" Flange OD 1/2" Key
2-1/2" OD Gravity Conveyor Roller 16-1/2" Face Width 11/16" Hex Axle Lot Of 6
Parker VDP 10 D 34 Forklift Hydraulic Spool Valve 5 Port
NEC FD1137D 3.5" Floppy Diskette Drive Power Supply In Industrial Case
Mitsubishi A213 Diacut 10 Spooled EDM Wire 0.20 mm (.008") 11LB Spool
Fanuc A02B-0060-C032 A61L-0001-0076 Operator HMI MDI/CRT Unit A20B-1000-013
Gamma 900NT Spooled EDM Wire 0.15 mm (.006") 11lb Spool
Wiscolift Certified 2000Lbs. Single Leg Coil Lifting J-Hook 2' Reach
Richardson Electronics RBT104/3BPY Y Axis Beam Bellows Trumpf 3030 Laser 1667805
David Brown C08-0N Radicon 3" Output Shaft Replacement Kit SE 08UW
Barnes 32mm OD x 6.5mm Lead 4-1/2 Turns Per Inch 14.325" Travel 31-1/2" OAL
Thermal Transfer EK-514-0 500PSI Shell 150PSI Tube Water To Oil Heat Exchanger
Dayton 1111520402 3/4HP AC Electric Motor 1725RPM 1PH 56 Frame (Parts Repair)
Allen Bradley 1746-NI16I FRN 2 SLC 500 Analog Current Input Module
1 Allen Bradley 1746-NI16I FRN 2 SLC 500 Analog Current Input Module
SMC CKZ2N50-30DT Pneumatic Power Clamp Cylinder 30° Left/Right With Arm
International Navistar ZTSE4414 Cam Position Sensor Air Gap Tool Missing Gauge
17-1/4" Press Brake Forming 90° V Angle Die Block Punch Set 1/2" Thick 3-3/4"
29-1/2" Press Brake 90° Forming Angle Die Block 1/2" Tang 1-3/4" High
Lincoln Electric Fleetweld 180 E6011 1/8" x 14" Stick Electrode Welding Rod 23#
Schroff VME J1 12 Slot Chassis Mother Board Housing W/ Cooling Fans
Northman CV-2014V 20V Series 14GPM Vane Pump Cartridge Kit W/Seals
Fuji Electric FVR022G5S-2 200/230V 0.5-360Hz FVR-G5 VFD Inverter
Desoutter AFD40 Pneumatic Autofeed Tapping Drill 500 RPM
Versa VSG-2521-M-U-167-3530-A120 2/2 Position Pneumatic Solenoid Valve 120V
Mitsubishi A74PW132A Printed Inverter Circuit Board
Ingersoll Rand 39476890 Thermostatic Valve
Strippit 4CJ2 C-Frame Punch Press Bench Mount 2 Units Mounted To Plate
Centerless Cylindrical Grinding Wheel Hub 5" Arbor
Fanuc A06B-0146-B675 AC Servo Motor 3.0KW 1500RPM W/A06B-0146-B675 Pulscoder
Federal Model 2400 Precision Height Stand With Gage
Dodge 17A10R14 10:1 Ratio 1750RPM 1.67Hp Input 175RPM Out 140TC RH Gear
Wildeck LL3336 Upper Right Hand Wheel Block 5-1/2" Phenolic
SMC VQ4101-5 2 Position Single Solenoid Pneumatic Valve Bank 24VDC Coil
Double Acting Hydraulic Cylinder 7-3/4" Stroke 1" Rod 1-1/2" Bore Block Mount
Perfection America ST2610B Double Output Gear Reduce Ratio 10:1 Output 1424Lb-in
Sumiju SE-JRF 0.4kW 200/220V 50/60Hz Compact Coolant Pump 1 Liter Tank
Reliance Electric 3/4 HP 1725 RPM 90VDC LE0056C Frame Electric Motor
Warner Swasey CNC Turret Die Her For 5" Die
Enerpac RD96 9 Ton Double Acting Hydraulic Jack Cylinder 6" Stroke
Indramat 11256364 PLCB-01-02-FW Interbus S Module Card PLC
1/2" x 1-3/4" Non Heat Treated 17-4 Stainless Flat Bar 20"-27"
Dwyer 470-1 Thermal Anemometer W/ Probe
Fanuc A02B-0281-C125/MBR Operator Key Pad
1 Fanuc A02B-0281-C125/MBR Operator Key Pad
Indramat DG 1604 Pulse Encoder 1250 Pulse/Rev.
Machinist Strap Down U-Shaped Clamps W/1"-8 TPI Hole Misc. Sizes Lot Of 15
27-1/4"x 6" Steel Flat Face Conveyor Roller 1-3/16" Hex Bearings
Heidenhain IBV 101 536 398-01 Interpolator Encoder
Pepperl Fuchs RL61-LL-IR-Z/92/136 Fiber Optic Sensor With FE-IASTS6S-3 Cables
Walter DC150-08-13.494A1-WJ30TA 17/32" Carbide Drill Bit Coolant Thru 140° Poin
Sparks 21-1/2" Single Ply PVC Woven Back Smooth Top Conveyor Belt 60'
Cincinnati PS-31980-B Grinding Machine Spindle 16-1/4" OAL x 3"
Quick Strip 4" x .060" x 300' Standard Smooth 34" Precut Prepunched Strip Door
2" x 2-1/2" x 6" Machinist Set Up Parallel Block Bars Set of 2
6.418" OD Drum Roller 6-1/4" W Face Stainless Steel 1-1/4" Bore Shouldered Edge
6-9/16" OD Drum Roller 6-5/8" W Face Stainless Steel 1-1/4" Bore Shouldered Edge
Fuji EP-2810A-C1 Spindle Drive Unit Circuit Board
Power Electronics SM4A1S Smooth Move Single Speed Soft Start 208-480V 115V Coil
KCranes QB-470 51_470_DZI_499P Limit Switch 230VAC 60VDC
Danfoss PT5B20STR3DLF00A00C0 380-500V 7.5Hp 0-1000Hz Variable Speed Drive
Fanuc A16B-2201-0470/10E Process I/O PCB Circuit Board
Deerfos 7" x 93" Aluminum Oxide Sanding Belt 100 Grit Lot Of 13
Jergens 15717 6" x 2-1/2" Workhing Lathe Jaw Tongue Groove Set Of 3
SKF 6026-2Z/C3HT51 130x200x33mm Radial Deep Groove Ball Bearing
Dodge 20A07L14 7.5:1 Ratio 1750RPM 2.78Hp Input 233RPM Out LH Gear Reducer
Quick Clamp Shaft Round Clamping Unit W/Precision Drilling Holes
Nippon TOP-203HA M Trochoid Gerotor Pump 3/4" NPT 14mm Input Shaft
2.5" OD Gravity Conveyor Roller 17" BF 16-3/4" Face 0.695" Hex Axle
Brown Sharpe GZ55 1/8Hp 208-440V 3Ph 50/60Hz Submersible Coolant Pump
Hubbell CAT 3004 Type K1 112A .475 Ohms Coil Resistor
Rexroth 4WE6D5170FAG24 4/2 Way Hydraulic Solenoid Valve Detent 24VDC
Detas DLMT F2/5M Phase Meter 220V 50Hz 500V 60Hz
Cutler Hammer AN56BNO NEMA Size 0 Reversing Contactor 600V 18A 120V Coil
1 Cutler Hammer AN56BNO NEMA Size 0 Reversing Contactor 600V 18A 120V Coil
Neidlein STMG-239/MK7 Dead Center 3-1/4"-3" Taper BS #18
Bystronic 90000007 CU WC Reflector 50mm x 33mm Plane Mirror Layer 1
System Plast LBP882TAB-K750 190mm Wide Roller Top Tabletop Conveyor Chain 5'
Advanced Illumination S-15710 Strobe Power Controller 2 Output 110VAC
12-1/2" 90° V-Forming Press Brake Gooseneck Punch Die Punch 1/2" Tang 3-5/8" H
ABB Robotics 3HAB8101-8/11A Robotic Servo Drive Unit
15" Square 2 Wall Galvanized Horizontal Vent Pipe Termination Cap 5" x 8"
1-1/4" Diameter 13-8 PG Stainless Steel Non Heat Treated Round Bar 13"
1-1/2" x 3" Non Heat Treated 17-4 Stainless Flat Bar 18"
Command 40.40V4LB15 Varia V4 Modular Axial Drilling Milling Head VDI40
Proteus Industries 9WS2G30-001 WeldSaver Coolant Flow Monitor Leak Detector
Sampson MN-10 Double Miter Saw Belt Guard Housing Spindle Mount
Vickers DG4V-3S0AMUB560 Single Solenoid Hydraulic Valve Check Regulator 120V
General Electric 5B58JBS 3275A 1500RPM 12VDC 7/8" Dia Shaft 58 Frame Motor 2.6HP
Single Girder Bridge Crane Push Pull Trolley 3" Beam
Finn-Power F5-25SB/AM 6 Position Multi-Punch Die Base 1" Inserts 6.1450" OD
Teral LSW25A0.4C-280 Coolant Pump .4kW 3000/3600RPM 200/220V 50/60Hz 11-16m/head
DMIC BV3D-1500BA-1113DAEH3 3000PSI 3Way Hydraulic Actuated 1-1/2" Ball Valve
Foxboro Stabilflo 1" NPT Class 250 Pneumatic Actuator Gate Valve
Tidland AC2996 6" OD 2-3/8" Round Bore Air Chuck
Trumpf 825376 OW203/K 200mm Brake Press Punch Die 60° R4.00 H=120
Dodge 20A0R14 7.5:1 Ratio 1750RPM 2.78Hp Input 233RPM Out RH Gear Reducer
Dyden E91337 HW1270998-5N Robot Cable 2464 300V w/Molex 40 Pin Connectors 16'OAL
Schaffner FN 258-100-35 480V Line Filter
Siemens 6FC5203-0AF52-0AA0 Trumpf Operator Panelfront 12"Display (Parts Repair)
Fincor Incom 2200-P Regenerative DC Motor Control 115/230V Line 1/2Hp 200VDC MAX
Dukane 43X320 Network Controller Ultra Com Multiplexer
Stanley 42-348 Vintage 4' Cherry Wood Brass Level 3 Double- Bubble Windows
Trumpf Laser PE140 R230 3000pf Capacitor 16 kVp
Mitsubishi HC-SF152K 122VAC 2000RPM 1.5kW AC Servo Motor No Encoder
11" X 4" X 2-1/2" Thick Tongue Groove Lathe Jaw
Nibco 3" Socket Slip Coupling SCH80 Gray PVCI Pipe Fitting Lot of 12
Emerson MGE-316-CBNS-0000 1Hp 4000RPM 240VAC 3Ph AC Servo Motor W/ Encoder
Inpro Seal 1001-CD-67233-0 Current Divider Ring 2.756" Shaft 3.756" Bore
3" OD 32" BF 32" Face Width Flat Conveyor Weighted Pulley
Rexnord 12" Travel Mounted Bearing DS Take-Up Screw Frame
CKD SC-25AR Pneumatic Speed Control Valve 1" NPT
Hyster V40XMU Narrow Aisle Order Picker Mast X-Axis Hydraulic Motor Gear Unit
Allen Bradley 1761-L20AWA-5A FRN 1.0 MicroLogix 1000 Analog Controller
QEM HM207.04/T/1/E/24 Programmable Electronic Counter Software .5
QEM HM207.04/T/1/E/24 Programmable Electronic Counter Software :5
Davis CNC Turret Lathe Quick Lock Tool Her 3" Projection 2-3/4" Bore Parts
Baldor 35K115Y267 1Hp 1140RPM 3Ph 460V D90S Frame Electric AC Motor
Aero-Motive JB07000 60-70 LB Ergomation Tool Balancer
Mitsubishi BN624A864G61 Circuit Board
JLG 70003614 HII-0015-0025 Hydraulic Tank Filter Service Kit 6 Micron
HT-406A VDI 60 Boring Bar Tool Her Coolant Fed 4-7/8" Projection 1-3/8" Slot
D1-6 Lathe Spindle Camlock Mounting Plate 7-1/8" OD 6 Pin
Accuspray 120V Power Sprayer Turbine Controller Parts/Repairs
6 Valve Bank Steel Hydraulic Manif D03 Size 2 Way 4 Port
Foster Machine CO. 413-1106 Antique Barker Wrenchless Machine Chuck