福建中立恒自动化设备有限公司
目前,世界上有200多个厂家生产可编程序控制器产品,厂家有德国的西门子,美国的Rockwell(AB)、通用(GE),日本的三菱、欧姆龙,法国的施耐德等。
可编程序控制器总的发展趋势是向高集成度、小体积、大容量、高速度、易使用、高性能方向发展。具体表现在以下几个方面:
(1)向小型化、专用化、低成本方向发展
20世纪80年代初,小型PLC在价格上还高于小系统用的继电器控制装置。随着微电子技术的发展,新型器件大幅度的提高功能和降低价格,使PLC结构更为紧凑,功能不断增加,将原来大、中型PLC才有的功能移植到小型PLC上,如模拟量处理、数据通讯和复杂的功能指令等,但价格不断下降,真正成为继电器控制系统的替代产品。
(2)向大容量,高速度方向发展
大型PLC采用多微处理器系统,有的采用32位微处理器,可同时进行多任务操作,处理速度提高,特别是增强了过程控制和数据处理的功能。另外,存储容量大大增加。
(3)与计算机联系密切
从功能上看,PLC不仅能完成逻辑运算,且计算机的复杂运算功能在PLC中也进一步得到利用,从结构上看,计算机的硬件和技术越来越多地应用到PLC;从语言上看,PLC己不再是单纯用梯形图语言,而且可用多种语言编程,如类似计算机汇编语言的语句表,甚至可直接由计算机语言编程;在通讯方面,PLC与计算机可直接相连并进行信息传递。
(4)发展多样化
可编程序控制器发展的多样化体现在3个方面:产品类型、编程语言和应用领域。
(5)模块化
PLC的扩展模块发展迅速。功能明确化、专用化的复杂功能由专门模块来完成。主机仅仅通过通讯设备向模块发布命令和测试状态,这使得PLC的系统功能进一步增强,控制系统设计进一步简化。
(6)网络与通讯能力增强
计算机与PLC之间以及各个PLC之间的联网和通讯的能力不断增强,使用工业网络可以有效地节省资源、降低成本、提高系统可靠性和灵活性,致使网络的应用有普遍化的趋势。
(7)多样化与标准化
生产PLC产品的各厂家都在大力度地开发自己的新产品,以求占据市场的更大份额。因此产品向多样化方向发展,出现了欧、美、日多种流派。与此同时,为了推动技术标准化的进程。一些国际性组织,如国际电工委员会(IEC)不断为PLC的发展制定一些新的标准,如对各种类型的产品作一定的归纳或定义,或对PLC未来的发展制定一种方向或框架。
(8)工业软件发展迅速
与可编程序控制器硬件技术的发展相适应,工业软件的发展非常迅速,它使系统应用更加简单易行,大大方便了PLC系统的开发人员和操作使用人员。
可编程序控制器的输出信号类型可以是开关量、模拟量和数字量。输出单元从广义上分包含两部分:一是与被控设备相连接的接口电路,另一部分是输出的映像寄存器。
PLC运行时CPU从输入映像寄存器读取输入信息并进行处理,将处理结果放到输出映像寄存器。输出映像寄存器由输出点相对应的触发器组成,输出接口电路将其由弱电控制信号转换成现场需要的强电信号输出,以驱动电磁阀、接触器、指示灯等被控设备的执行元件。
以下链接皆有货
Yuken CJT70-FA32B350B-BCD Double Acting Hydraulic Cylinder 350mm Stroke 32mmBore
Takumi KS9809-TR-0 V10A Breakout Circuit Board For Vertical Machining Center
Bell Gossett PW2-81 End suction Centrifugal Pump Housing 2-1/2 x 2
IKO SBB 68 2RS Spherical Plain Bearing 4.1/4 x 6.5/8 x 3.719
4" Carbon Steel Buttweld Fitting 90° Elbow
Euchner PWG-A-R06D012GLG Rotary Encoder 6mm Shaft
SMC VP3145-035TZA-N 3-Port Pneumatic Solenoid Pilot Valve 24VDC
SMC MSQB30RX-F9NV 90° Rotary Table Pneumatic Rack Pinion
SMC MSQB30RX-M9NL 180° Rotary Table Pneumatic Rack Pinion
Sanyo Denki 103-808-1 Synchronous Stepper Motor 120VAC 60/72RPM 3/8" Shaft
Square D 8911DPSO43V14 25HP Motor Starter 24VAc Coil W/ 31034-144-60 Overload
Fairchild 4043 3/8" 250PSI Precision Pressure Regulator
Generic Nozzle 2.3mm RNT158/23 Lot Of 100
Fanuc 2004-T284 A660-2004-T284-L-11MEB 26' L Teach Pendant Cable (No Connector)
Phoenix Contact 1001T-4POE Industrial FL Ethernet Switch 1000
Turck WSM WKM 190-6M Cordset Cable Right Angle Female To Right Angle Male 19pin
Trumpf 0823921 7.5M Motor Cable Assembly
Jamesbury VPVL100DABD Valv-Powr 2" Sanitary Valve And Pneumatic Actuator
4-1/4" x 4" OD Crowned Face Steel Roller 3/4" Axle 7" OAL Parts
Prewired 120V (4) Motor Starter Control Operator Panel Assembly 24V Controls
Skinner Seal 8" Standard Pipe Emergency Clamp Repair No Bolts
Vickers 584629 Vane Pump Cartridge Kit
1 Vickers 584629 Vane Pump Cartridge Kit
Numatics 006-157D Double Z Pneumatic 16 Valve Block Manif W/ 4 Solenoids
Maxon 18587 18061 Air Heating Gas Line Ending Burner 24" L x 1-1/2" ID 3051464
Hardinge AHC Automatic Chucker Radiator Cooling Fan Assembly 115V
Century Motor H280 1/2Hp 1140RPM 3Ph 208-230/460V L143T Frame AC Motor
5/8" x 1" Wire Coil Pneumatic Carton Stapler er CCC Style
Omron E3X-NA41V E32-DC200 Fiber Optic Photo Electric Switch Amplifier 2M Cable
Gleason Hurth 110mm OD x 68mm Diamond Dressing Roll Z=16
AS38386C2B010L 8" ID Wire Wound Air Duct Portable AC Unit Flexible Hose 10'
Honeywell STR14G-11A-1C0AFAAA2000-1CI.SB-B67M Pressure Transmitter 0-125PSI
Vickers DGV4-3S6C M U B5 60 5/3 Way Float Center Double Solenoid Valve 120V
Hytec Style Pneumatic Over Hydraulic Pump
Yale Brake Master Cylinder Assembly
Milwaukee C-18351 2-1/2" Bore 7" Stroke 1-3/8" Rod Trunnion Hydraulic Cylinder
Parker 03.25 KJBTC3LLR34M34M 4.410 Hydraulic Cylinder 3.25" Bore 4.410" Stroke
Versa TGS-2512-G-HCL-S-155-D024 Hydraulic Directional Valve 175PSI 45VDC
Danly SA750-3.5 Nitrogen Gas Spring 3-1/2" Stroke 1" Piston x 10-3/4" OAL
GE Fanuc 44B399201-002 Control Circuit Board
SVJ5001 YS QC17 Hydraulic Pressure Flow Control Valve
Cla-Val 55L-60 3/4" Thermal Expansion Relief Valve 20-200PSI
Okuma 1099-0002-40-40 LU15 CNC Lathe Machine Operator Manual Control Panel
Siemens Verder VR 108.05 480V 0.2kW 3Ph 3365RPM Miniature Horizontal Pump
Grundfos SPK4-8/3A-W-A-CVUV 40 L/Min .37kW Multistage Coolant Pump Parts/Repair
Jungheinrich 51601358 EJE-120-US Operator Control Instrument Panel
2-1/2" Stainless Steel Round Bar 316L 12"
Daytronic DS6000A Linear Displacement Transducer Spring Extended
CAT 50 Tool Her CNC End Mill 5", 2-3/4", Projection
Hypertherm AA#4930 041150 Rev A THC Motherboard PCB
Rion SI-31 NO. 80411 Octave Band Analyzer (Band Only)
N0311FD-B F8136B CPU Circuit Board D0128XL-C
Yokogawa YE/103111LALA Panel Mount Speed Ammeter 0-8800RPM 0-1MA DC
KEB 10E5T60-1002 EMC-Filter 480V 6.7A
4c/24AWG Cable Connector Wire Assembly W/AMP 20644-1 205838-1 Ends 100'
Johnson Control F63AC-1C Liquid Level Float Control 1" Pipe Connector
Doosan AV5EPLE4A Mynx 500 Mynx 540 DMV 4020 DMV 4020d Parts Book
Waldmann SLC 136 S Industrial Fluorescent Glass Tubular Machine Light 36W 20"
3" Raised Face Flange Mount Reduced To 2" Butt Weld Elbow 17" Center Length
Acco Bristol 1G2A500-14A Vintage Meter 24 Hour 0-10mm Hg Abs 1/2"NPT Inlet M6043
Rexroth R165321420 Size 25 Linear Rail Ball Bearing Runner Block
Oriental Motor 3RK15GN-AWM 110V AC Magnetic Brake Motor 0.4A W/3GN6K Gearhead
Antriebstechnik RFT0.09/2-71 0.12Kw Direct Drive Cooling Fan 3200RPM 220-290V
49/64" 6 Flute Carbide Tipped Chucking Reamer #3MT Shank 16-1/2" OAL
THK HSR65 60mm Linear Guide Bearing Block
Browning E55MM 55mm Metric Bore QD Bushing
7-1/2" x 2-3/4" Lathe Steady Rest Bed Clamp 7/8"-9
Tube Bender Die 0.500" Cond. 2" Radius
Fanuc A16B-1212-0901 Power Supply Module Parts/Repair
Custom Vertical Mount Floor Plate For 3-1/2x3-1/2" Extrusion Profile 80/20 Style
Positech Pneumatic Positioner Manipulator Controls Valves Regulators
Fanuc A06B-6047-H041 A20B-0009-0320/11D Velocity Control Unit
Furnas MCE411 K0 VEEARC Adjustable Frequency Drive 3HP Micro 7000 w/Manual
American Monorail A-163 Cast Iron Push/Pull Single Girder 2" Beam Trolley
Boston UF-118C-15 15:1 Ratio Left Hand Gear 1750RPM Input 355 Torq Lbs
Omega CN8241-F1-F2 115/230V Temperature Process Controller Wired Interface
Equipment Machine Belt/Sprocket Safety Guard Bolt-Down Cover 9"Pulleys
P68-14M-40 High Torque RPP HTS 40mm Timing Belt Sprocket 68T Taperlock
SMC CA1FN63-75-XC18 63mm Bore 75mm Stroke Double Acting Air Cylinder
Yuken CJT70-FA32B25N-AND 42mm x 34mm Stroke Hydraulic Cylinder
Oubang 5IK40RGN-C 220V 50/60Hz 1300/1600RPM 2 Speed Gear Motor 7.5:1 Ratio
Concoa 8065268-82-1 Inert Gas Regulator 0-200 PSI CGA 580
Milwaukee A-71 4" Bore x 3-3/4" Stroke 1" Rod Trunnion 250PSI Air Cylinder
Heidenhain LS 703 Linear Encoder Scale ML 520mm
Konecranes 4-Button (5 Space) Hoist Crane Trolley Control Pendant W/ 10' Lead
Martin #140 Roller Chain Sprocket 10-1/2" OD 17 Tooth 1-1/2" Bore
Rosemount 1151DP4J12B1M3D1 45VDC Pressure Transmitter W/ Manif 2000PSI
ITT BP 410-040 Brazepak Refrigerant Plate Heat Exchanger 450°F 1" NPT
100Lbs Vertical Load Plateset Lifting Hook Strap 48"
Fujikura FCS-63-78-S1 63mm Bore 78mm Stroke Single Acting Air Cylinder
Daco 12MSHOP 4-3/4" L x 1-3/4" W x 2-1/4" H Lathe Chuck Jaw Set Of 3
Norgren B74G-3AK-AD3-RMN Pneumatic Regulator Filter Lubricator 250PSIG 3/8" NPT
Partridge Hydraulic/Air Pressure Intensifier 6 Discharge
Parker CDD2HLTS24AC 1-1/2" Bore 22" Stroke Trunnion Hydraulic Cylinder
2.750 Tol Round Hole Die CNC Turret Punch Shank 4.125
Edwin Wiegand WR-80EP Hazardous Location Thermostat 40°F to 90°F
Mettler Toledo LYNX Batch Scale Controller Indicator 120V LBPA 0710000
Ortman 7L S HYD 3.25X12 3-1/4" Bore 12" Stroke Hydraulic Tierod Cylinder
Ingersoll Rand ICA 93958684-50 Tool Cable Assembly 50'
3" x 1-1/2" Flexible Stainless Steel Feed Thru Cable Carrier Energy Chain 57"
12" Pipe Roller Hanger Vertical Mount Galvanized
M-0385 SDPC/HB/UV/FR302 Anti-Mildew Sheeting .020mil 54"x75' Roll
A-B Allen Bradley 1775-A3 PLC-3/10 Chassis Slot Rack
Steel 3" Diam. x 29-3/4" Black Rubber Lagged Gravity Conveyor Roller
Parker P1DYS040MCE0600FFNNN 40mm Bore 600mm Stroke Double Acting Air Cylinder
Trumpf 824284 EV-W10 Brake Press Die 84° 200mm Wide R1.00 H=100mm Laser dur
JOHNSON CONTROLS MP821D Pneumatic Valve Actuator,4 to 8 Spring 1/2 NPT Bronze
BT-40 Taper Boring Bar Tool Hers Mixed Lot Of 7
Dematic 27-1/4" Long 2.5 OD 28"BF Gravity Conveyor Roller 30" OAL 7/16 Hex Lot/5
10-3V 8.0SF 10 Groove Belt Pulley Sheave SF Bushed Bore 8" Diameter
AGIE Agiecut 100 2-1/2" ID PVC Suction Hose 79" OAL Straight Fittings
Speed Selector 5151-000 Variable Speed Pulley 1" Bore
3" OD 26-1/4" BF 26-1/4" Face Width Conveyor Weighted Roller
Regeltehnik Friedrichshafen DMPM-45-J2-1 Inline Hydraulic Filter Unit
13-1/8" x 13-1/2" x 12-3/8" Industrial Organizer Bin / Container 3 Slot
Taiyo 70H-8 1FA63BB60-AB Double Acting Hydraulic Cylinder 63mm Bore 60mm Stroke
Murray AS323A 100A 2 Pole Fusible Safety Switch 240V/15hp 250VDC/20hp
TCB -1731-4 Adjustable Clamps Setup H Down 0 pcs
Rexnord CEMA C Series Return Flat Steel Roll Idler 5x21" Roll Factory
Ammeraal Beltech Flexam EX 10/2 0A32 26" Ribbed 2 Ply Conveyor Belt 328"
4" x 4-1/4" Open Machinist Precision Milling Quick Clamp Gang Vise (No Handle)
Dayton 3N349D 1/4HP AC Electric Motor 1725/1425RPM 230/460V 3PH 48 Frame
Reliance Type AM 80Z AA2 1.2Hp Electric Motor 250-277/440-480V 3Ph 3370RPM
Balluff BOS 23K-NU-RH10-S4 Cubic Diffuse Sensor 10-30V DC
Dyer Intertest 100-107 0.8" To 1.6" Indicator Dial Groove Gage 0.0005"
Siemens 6ED1 055-1MB00-0BA0 Digital I/O Module E-Stand:01 (Factory )
1 Siemens 6ED1 055-1MB00-0BA0 Digital I/O Module E-Stand:01 (Factory )
Okuma 1911-2524-1746024 V1.2 Operator Control Panel Keyboard
West Penn Wire RG-59/U Coax 20 AWG 2/C 18 AWG RF Signal Low Voltage Wire 400'
Weldtron Safe-T-Lite 81220 Control 115V 1PH
3" OD 21-1/2" BF 21-1/2" Face Width Conveyor Weighted Roller
Trumpf RBT112/40BX 0975011 L4030 Laeam Path Accordion Y-Axis Bellows
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