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
Flo-Tork 60° Rotation 1-1/2" Hollow Shaft Hydraulic Rotary Actuator
46" Wide Rapistan Style Adjustable 17"-26" Height Conveyor Legs
Weco 3228449 Model # 12 12" 175 C PSI Wafer Body Butterfly Valve
5-5V118E-D 12" Dia. 5 Groove V-Belt Pulley Sheave 3-3/8" Bushed Bore
Kitagawa N-8 N-8 8" 3 Jaw Power Lathe Chuck 4760 RPM
Vickers Solenoid Operated Valve Manif Assembly 24VDC
Atlas A-91 3.20 Bore 22-3/4" Stroke 250PSI Pneumatic Rod End Cylinder
Baldor Posidyne VM3606 1-1/2Hp 1725RPM 230/460V 7/8" Shaft Inline Motor Clutch
Lincoln Electric ED010156 Carbon Steel Stick Welding Electrodes 3/16" x 14" 50LB
Columbus Mckinnon 649564204 120' Crane Winch Wire Rope ASM 43S143-S6X37-102
AA Mfg. 4200436 Telaflex Hitachi Seiki VK65 CNC Telescoping Way Cover Set of 2
Boston Gear FWA726100B56 100:1 Ratio 17.5RPM Parallel Gear Reducer
2 Ton 4000LBS Manual Push/Pull Hoist Trolley 4"-5-1/2" I-Beams
Flat Pinion Gear Rack 20T 0.382 MOD 3-1/8" Face 23-1/2" 1/2" Pitch Approx.
Fife SE-26 Digital Line Guide Sensor
Century SC204-BGC5-21 1Hp 1150RPM 220/440V 3Ph Vintage Squirrel Cage Motor 3Ph
Werner Todd H195 1-1/2Hp 200-460V 3Ph Stainless Steel Vertical Centrifugal Pump
Steering Column Linkage Cushman Titan SOBR Personnel Cart
Fuji VKN113A .75kW 3Ph 200/220V 50/60Hz 7m/Head 320l/Min Coolant Pump
Uneeda M-182143 52" x 86" RKX Cloth#150 Grit T09 Sanding Belts
Uneeda M-182140 52" x 86" RKX Cloth #80 Grit T10 Sanding Belts
Uneeda M-182144 52" x 86" RKX Cloth #180 Grit T09 Sanding Belts
Uneeda M-139756 52" x 75" EKA 1000FH Paper #180 Grit T40 Sanding Belts
Dodge P80-14M-85 Hi Torque HT200 85mm Timing Belt Sprocket 80T 3535 TL Bushed
Okuma 1006-0632 BLII-D Servo Amplifier Drive Unit 75A
36 Compartment Custom Made Plywood Cubby Tool Craft Part Organizer
Electra 60:1 Ratio Gear Motor 28RPM Output W/Baldor 1/2HP 230/460V AC
OHMA PR813-156-FBL-.34-TR-12Z3 156:1 Rotating Rod Piercing Cylinder 3" Stroke
Hagerty Technology Model 425 Opacity Brightness Tester 110V
Gardner Denver 3B180A 927809 3BA927257 Cooper Electric Nutrunner 1/2"Drive Adapt
Shelby 5405 1400Lbs Dock Mount Boat Trailer Hand Winch 18' Line
2-1/2" ID Steel Conduit 45° 90° Elbows Mixed Lot Of 7 PCS
Westinghouse A204S1BAAC Size 1 200/230V 7.5Hp 120V Coil Combo Starter Disconnect
1/2" 300 PSI Self Retracting Storage Hose Reel 48' Hose
Norgren F53 CDS25 F15-A3 1" NPT 3 Stage Compressed Air Filter
4" Round Adjustable Height Bar Steady Rest Roller Bar Her Stand 22-36"
Allen Bradley 1336S-B007-AA-EN4-GM1-HA2 380-480V Input 3Ph 0-400Hz V/F Drive
Dodge 20Q05R14 5:1 Ratio 345RPM 208-230/460V 1Hp Right Hand Gear Motor
W.F. Wells Sons W-9 20" x 20" x 9" Bandsaw Electrical Enclosure W/Disconnect
Toyota LPG Container Tank Bracket OEM Part
15-1/2" x 18" x 7" Steel Hydraulic Fluid Return Tank Reservoir 8 Gallon
Fanuc Uniphase 1103 A04B-0802-C450 C1000 Laser Presidion Mount Power Ass'y
Kennametal D-185460-R01 Hybrid Turret Tool Her Block Right Hand W/ Tooling
Subak 24RS1202 2 Strand Sprocket ID Bore 114mm RS120 Chain 24T
Marathon 3375K164 3Hp 3450RPM 3Ph 208-230/460V 1-1/2"x1" Centrifugal Motor Pump
Telesis Pinstamp Marking System W/Cables
Rexroth 4WE6D51/AW120-60NZ45V 4/2 Position 2 Valve Bank Manif Assembly
Gates 6M2T-MTF MegaTuff 3/8" ID x 44' OAL Hydraulic Hose 5000 PSI 0.70" OD
68 Lbs. Steel Machine Counterweight 9-1/4" x 6" x 5-3/4" W/Hook
6 Liter Liquid Dosing Calibration Column 25ML 4" x 35-1/2"
GE 9T58K2815 3kVA Control Transformer Primary 240/480V Secondary 120/240V 1PH
Fanuc A06B-0241-B100 1.8kW AC Servo Motor 2000RPM 255V 3PH W/ Pulsecoder
Emerson ELT1E2D 1Hp 1755RPM 3Ph 208-230/460V 143T AC Motor
Eaton ECN1628AAD Non Reversing Starter F Disconnect 60A 120V Coil
4-1/4" ID Carbon Steel Flanged 3-Port Pipe Manif 9" 7" Flange OD 1" NPT
Martin 180B18 #180 Single Row Sprocket 2-7/8" Keyed Bore 18 Tooth
Martin 180 18 #180 Single Row Sprocket 2-7/8" Keyed Bore 18 Tooth
Milnor COELDS08 Industrial Gas Steam Dryer Controller With 08BSPBT Processor
Columbian Machinists Swivel Base Bench Vise 4-1/2" Jaw 5" Opening Brass Jaws
Cleveland M1714CD-05BB Gear Motor 5:1 Ratio 230V 3 Ph W/48BK7101BPSterns Brake
Hammer 535S 6" Heavy Duty Lockable / Swivel Caster With 10" H Stud Set Of 4
JLG Hydraulic Tank Reservoir
6" x 4" Reducer 90° Elbow Carbon Steel Buttweld Fitting
2 Post Punch Press Die Set/Shoe 8" FB x 9" W 5-1/2" Throat
USG 20362 Fire Rated DXL 424 Cross Suspension Tee 4' L x 15/16" Lot Of 60
1-1/2" Diam. Two Wall Shower Toilet ADA Grab Bar Satin Finish 48" x 24"
AMERICAN ELECTRIC LIGHTING 77X1MCA48076YGBK ULTRAFLOOD Floodlight 1000W 480V
24"x 48" Gravity Skate Wheel 60° Spur Conveyor Right Hand
AAF 42A74J1T2A5 HEPA Air Filter 23-3/8" x 23-3/8" x 11-1/2" High Efficiency
Nord 90372 N140TC 14.65:1 Ratio 119RPM Output Left Hand Output Gear Reducer
Pneumax 100mm Bore 660mm Stroke Trunnion Mount Air Cylinder
Isringhausen Type 15/R Vertical Mount Fork Lift Stacker Self Fing Seat
Rexnord REX ER102 4.040" Pitch 7800# Load Elevator Chain Link Attachment Lot/20
Gisholt-Libby No. 1509 Machine # 5 Multiple Turning Head Turret Lathe Fixture
Rexroth 30mm Profile Linear Guide Rail Bearing Block Assembly 88-1/4" OAL
Dematic 4" OD 41" BF 41" Crowned Face Conveyor Belt Pulley
AEC HOSA 2Hp 230/460V 3Ph 1-1/2" x 1-1/4" Centrifugal Pump
Dayton 2N942H 1.5HP AC Electric Motor 1140RPM 208-220/440V 3PH 184 Frame
Organizer Rack For Clamp-N-Jack Machining Clamps, Tools, Rods
234" L x 2-1/2" W Side Flexing Table Top Conveyor Chain W/Soft Rubber Top
Glover OS600 3" Steel Flanged 90 Degree Pipe Elbow W/(8) 7/8" Bolt Holes
TRW Ross M8100103AAAA 35688 Torqmotor E999 Hydraulic Motor 8K21
Laipple KEB NMS90 Aluminum Gear Speed Reducer 10:1 Ratio
Isgev AS90L2 3CV AC Electric Motor 3400RPM 460V 3PH 4.5A Tapered Shaft
Baldor M3305T 3Hp 1140RPM 3Ph 230/460V 213T AC Motor
Dodge 23A10R14 Tigear-2 10:1 Ratio 1750RPM 3.42Hp Input 175RPM Out Gear Reducer
Herms Webrax MSG Silicon Carbide Resin Back 500 Grit Sanding Belt 44"x103"
Lithonia WGCUN 4' Light Fixture White Wire Guard For C and 5" UN Fixtures Lot/5
Ohio Electric D561562X8877A 1.5Hp 1750RPM D56 Frame 180VDC Direct Current Motor
GE 5K180TJ509 1Hp 1720RPM 3Ph 230/460V Y180 Frame End Mill Spindle Motor
Siemens 6SN1123-1AB00-0CA0/6SN1118-0DH21-0AA1 Power Module LT-Module INT .2X50A
48" x 30" Steel Gravity Oil Drip Fluid Catchment Tray Pan Center Drain
Dematic Conveyor Drive Spring Tension Power Twist Belt Takeup Assembly See Info
38" x 46" Double Waterfall Wire Decks Pallet Racking Shelf 2,500 lbs Cap.
Insta-Grip 1/2" Air Hose 250PSI With 1/4" Cable Line Trolleys 55' OAL
Sumitomo CNFJ4095Y8 SM-Cyclo CNFJ-4095Y8 1/2HP Gearmotor 8:1 Ratio 230/460V 3Ph
Okuma BL-MC100J-20SB 2kW 2000RPM 3Ph 133V 133Hz AC Servo Brake Motor
Kennametal D-185461-R01 Hybrid Turret Tool Her Block Left Hand W/ Tooling
Dodge 23A10L14 10:1 Ratio 1750ROM 3.4Hp Input 175RPM LH Output Gear Reducer
Crown 45RRTT-S Hydraulic Tank
VSM 12086 Series KK711X 37" x 60" Wide Sanding Belts 120 Grit
Dematic Rapistan 19" Wide Conveyor Frame Legs 27" to 31" Adjustable Ht.
Allen Bradley 2711-K9A8 Ser F FRN 3.30 PanelView 900 Operator Interface Terminal
Bosch VMA 21/KR 001-D Servo Drive Software V 0.44
Allen Bradley 512-BJB-6XP-24R Size 1 Combination Starter Disconnect 600V 10Hp
36"Wx18"D Steel Drop Shelf (18 GA) Closed Clip Style Storage Lot of 6
Maxon 13.SL.60.3C 2" NPT 600PSI Size 04 Modular Safety Shut Valve
Kearney Trecker 1-2176201 Interface Circuit Board
Dematic Pneumatic Conveyor Drive Belt Take Up Tensioner Assembly
9-3/4" OD Steel Round Bar 2-5/8" L
Joyce-Dayton 206-MS-60-R-56 1/2HP 1750RPM 90VDC Motor W/Gear Right Hand
Fanuc A660-4003-T706 CRM37A Multi Conductor Robot And Encoder Cable 65'
Maxon Multifire 27665 6" High Temperature Oil Gas Kerosene Burner
A-Ryung 2HP AC Electric Motor 200-220V 3PH 6.7-6.2A W/T-Rotor Oil Pump
Boston Gear 20:1 Ratio 88RPM 90VDC 8" Shaft Right Angle Gear Motor
Sew-Eurodrive R47 DT80K4 0.55kW 100.86:1 Ratio Gear Motor 3PH 17RPM Output
Morgan Chicago 140 4" Jaw 6" Open Swivel Base Bench Vise
AMT Gorman Rupp K255 3/4Hp 1725RPM 3Ph 230/460V 50/60Hz Centrifugal Pump
6" Machinist Bench Vise 7" Open Parts Or Repair No Screw
Transnorm TS1500/140 90° Curve Sorter Conveyor Belt IR=1524 N= 660.4 HD=0
Grove Gear FABQ8472H 7.92:1 Ratio Quintuple Reduction 221 Output RPM M5 Gear
Dodge Tigear 26A05L18 5:1 Ratio Left Hand Gear 7.37HP 1750RPM In 350RPM Out
JRC Expanding Air Shaft Roller 6" Shaft 12" Face Width 30" OAL
3-3/4" OD 28-1/8" Face Width Conveyor Drive Roller 30mm Shaft
Mitsubishi SF-ERF 25:1 Ratio 68RPM Output 0.4kW 200/220V 50/60Hz Gear Motor
Grainger 5W823H 10-3/4"W x10"Hx4.5"D Bolt-On Laminated Rubber Dock Bumper Lot/2
Reliance P56H7213P 10:1 Ratio 208...480V 3Ph LH Output 6# Brake Gear Motor
Fuji Electric MLP6107A Excellent Power 3PH Induction Electric Motor 2.2KW 170V
Seton Y264715 6'x12" Reflective 2 Trough Safety Wire Bridge Mat Cover Speed Bump
Transnorm Drive Pulley TS1500/140 Flat IR=49" N=31" 1-7/16" Ext Outside Shaft
Rexroth ABM6PN-1X/06D2-01GM 6 Station Valve Block Manif 3/4" Ports
Alliance/Essentra Socket Weld Fitting Pipe Plug 11/16" OD. Blue PE 0,000