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
Yaskawa SGMAH-02BAF41 Sigma II AC Servo Motor, .2kW, .637Nm, 3000RPM, 3Ø 100VAC
Lab-Line 016-674-01 Front Control Panel/LCD's,
National Instruments NI TC-4353 32 Channel Rack Mount Thermocouple Input Module
SANYO DENKI 65BM003HBRTA BL Super AC Servomotor, 200VAC, for A50F
THK KR3310C+200LP Linear Actuator 125mm Travel 10mm Lead 1100lbs Load NEMA 23
DFI SD331-C236 Motherboard mATX Socket 1151 PCIe x16 7x RS-232 DVI/VGA/DP
Kollmorgen N31HCLK-LNK-NS-00 Stepper Motor, 1.8°, 4.69Nm, 65VDC 3.3A, NEMA 34
Kollmorgen N31HRLL-LNK-NS-00 Step Motor, 1.8°, 65VDC 4.3A 125W, 1500RPM, NEMA 34
MIYACHI PECO 77060063 WKT Board for MG3-W1 Digital Process Sentry
IFM OCNLFCKG/US-100 OC5225 Photoelectric Sensor 45mm Range, 10-30V DC, M12 5-Pin
AVT Marlin F033C L1A--3.0 CEL Camera 1/2"CCD 74FPS FireWire for CellaVision DM8
Lot of 2 Det-Tronics R8471-C3007 Single-Channel Gas Controller w/Enclosure
Schmersal RSS260-D-ST RFID Safety Sensor, 2mm Range, 24VDC, 2 Input/Outputs
Terra Universal 9500-00A Nitro Watch Controller
Futek QLA132 Custom Wire Tension Load Cell
Perkin Elmer System 2000 TG-IR Interface 600VA, 50/60Hz *Parts Not Working*
Mark-10 MGT50Z Torque Gauge CW/CCW 50oz/in 36kg/mm 35N/cm *For Parts*
Schmersal AZM161-STS30-08 Interlock Door Handle, Left Hinge, 15,000N
SVS Vistek SVS625MTHCPC Monochrome CCD Machine Vision Camera With Power Supply
Edmund Optics 54-671 VZM 450i Zoom Imaging Lens 0.7X-4. 90mm WD 2/3" Sensor
Air Wipe, Inside Diameter: 3-1/8", Input: 1/4" NPT, Outputs: 1/8" NPT
IAI RCS-SA4-I-20-L-200-M Robo Cylinder, 40mm Width x 200mm Stroke, 5kg Load
Shimpo Circulute 201-47SHFTBHAMP Speed Reducer, 0.57HP @1750RPM, 47:1, 600LB-IN
ELO ET1919L-8CWA-1-GY-G 18.5" Touchscreen Monitor 16:9, 136768 60Hz, VGA
Parker SM232AE-NFLN Compumotor Servo Motor & Cables Torque 92ozin NEMA 23
Reliance Electric 6MDDN-4P0101 Variable Frequency Drive 2HP, 380-480VAC, 0-240Hz
KEP ZOIDGE-9030 PLC Operator Interface, 24VDC, For GE 9030 PLC/HHP
Kawasaki Genuine Parts 50633-1030 7" LCD Display Assembly
Idec FC1A-HL1 MICRO-1 Handheld Program Loader 24-Key, 16 Character LCD, 12VDC
Yamaha YP330A Pick and Place Robot 13" Reach, 4" Drop, 6" Side to Side, No Drive
Thomson True Right Angle 1:1 Gearhead NTR42-001-S
Siemens 6ES7 151-8FB01-0AB0 ET 200S CPU SIMATIC PROFINET I/O Processor Module
Julabo BC4 Stainless Steel Immersion Tank For Heating Circulator, 4L Capacity
Tolomatic BC212-SK32.000 Pneumatic Band Cylinder, ø1.25in Bore, 32in Stroke
Aerotech ATS150-100-U-40P Linear Ball Screw Actuator, 100mm Travel, 4mm Lead
Aerotech ATS150-100 Ball Screw Linear Actuator Stage, 100mm (4") Travel, 4mm/Rev
Etatron PEU483971MEA eOne MF 2007 Microprocessor Metering Pump 101psi, 20 LPH
Festo EGSK-26-50-2P Electric Slide Ball Screw Linear Actuator, 50mm Stroke
Portwell ROBO-8712VLA Single Board Computer Intel P4 2.4GHz 1GB RAM DDR266
Futek FSH04056 TFF325 Flange-to-Flange Reaction Torque Sensor, 50in-oz, 2mV/V
EFD 1500XL-15 Fluid Dispenser 100/120/220VAC, 80-100psi In 0-15psi Out, W/ Pedal
SMC JXCP17-LER50J-1 Step Motor Controller PROFINET 100Mbps, 36 Byte I/O, 24VDC
InstruTech Super Bee CVM201PAA Convection Vacuum Gauge 12-28VDC 1-8VDC
Allen Bradley 1769-HSC Ser B High Speed Counter I/O Module 1MHz Inputs Out
DFI 586ITOX Motherboard Intel Pentium MMX 150MHz 32MB PCI ISA Socket 7
Excel Control Laser 215855 Rev B Scanhead For Marking Laser 034160-01, No Lens
Omron F3W-MA0100 Light Curtain Emitter & Receiver, PNP, 100mm Beam Gap, 24VDC
Nvent Hoffman S2MFC Mounting Bracket Use With HMI SYSPEND 281 Max Suspension
Watlow 965A-3KA0-0000 Temperature Controller, 100-240VAC, Solid State Relay Out
Parker OEM67-M2 Compumotor Servo Drive 1-Axis 1.1HP 0-12A 24-75VDC RS-232
Danaher Dover LM-200 Precision Stage Linear Actuator Positioner Table, 2" Travel
LAMBDA H10939 Alpha 1000W Modular Power Supply 85-264VAC In, 6/24VDC 8/25A Out
Parker S83-62-MO Compumotor Stepper Motor, 2-Phase, 140oz-in, NEMA 34, 9' Cable
Apex Dynamics PEIIR 050 Right-Angle Gearhead, 10:1 Ratio, 8mm Input, 12mm Output
Lesco SP1-365-LES-ER SuperSpot UVA Intensity Meter/Radiometer 320-390nm 200W/cm²
Glentek SMA7115-206-007F-1 PWM Brush Type Amplifier Module 30-220VDC 15A Cont
DFI PT630 ATX Motherboard, Socket LGA1156, DIMM, PCIe x16/1/4, PCI, COM
Thomson MS33LAN0200 Linear Stage, 4in Stroke, 1/16in Lead, ø1/4 Shaft, NEMA 23
SUSPA Movotec MQS-00002M Motorized Hydraulic Table Lift System 750lbs, 195mm
GE Fanuc IC693CPU341V CPU Module, 80k Bytes User Memory, 16-Bit System
GE Fanuc IC693CPU341V CPU Module, 80k Bytes User Memory, 16-Bit System
Allen Bradley 1606-XLS480F Power Supply, 100-240VAC In, 48-55VDC 10A Out, 480W
Control Laser Corporation 215657 Rev B Marking Laser Control Board
Fisnar DSP501N Liquid Dispenser, 100-240VAC 220mA, In: 70-100psi, Out: 1-100psi
Parker 404100XRMPD3H2L3C3M3E1B1R1P1 Linear Actuator W/ 77822-201 Encoder
Melles Griot 59 LGH 416 + 59 LGG 925 Invaritar Telecentric Gauging Lens 0.16X
Parker CMT-HT-108-0430 Conductive Foil Tape w/ Peel-Off Mask 108yds L x 0.430" W
Parker CTC Touch Display Replacement 4.7" STN 320 x 240 for PA05S PowerStation
Trumpf HAAS LASER 18-13-16-00 Dual Transformer Circuit Board, For HL506P PSU
LS XEC-DN60SU XGB Series Programmable Logic Controller, 284 I/O Points, 24VDC
Mitutoyo 516-615-1 Display Indicator With AC Power Supply, MM/IN, 5 Digits
IAI RCA-SA5C ROBO Cylinder Linear Positioner Actuator 150mm w/Controller 24VDC
KEB 07F5A1D-2BGA Combivert Inverter AC Drive, Input: 1-3 Phase 180-260VAC
Synrad UC-1000 Universal Laser Controller, 5kHz 0-190us PWM, 24VDC
Nikon CF Plan 20X/0.40 E Microscope Objective Lens Mag 20x NA 0.40 BD ELWD DIC
Sumitomo SM-Cyclo CHHJS4130Y Cycloidal Drive Ratio: 51:1, 4790IN-LB, 2HP, 182TC
GE Fanuc IC693ALG442B Analog Combo I/O Module Current/Voltage, 4-Input, 2-Output
PowerTec L14ASA1100700000 TENV Brushless DC Motor 1HP 160VDC 7.6A 1750RPM 143TCL
Dielectric DS2-AE-000 Dry-Pak Air Dryer 115V, 60Hz, 1Ph .2W, 100PSI, 6.8SCFM DEL
Panasonic GP-KS162HDE Digital Color Micro-Camera, 1/2" CCD, 75 582px PAL
RAD U-4619-SSF Ultimatic Pneumatic Robot Tool Collision Sensor 24VDC, 2-6ms
Parker 105002BTESD3L3C2M1E1 Ball Screw Linear Actuator 2" Travel .2" Lead NEMA23
SPG S9I40GBH-V12 Speed Control Motor Single Phase 220V, 40W, 90-1700RPM, 0.45A
Delta Tau 602404-106 PMAC2-PC Motion Control Board ISA, DSPGATE1
Hitachi HV-D30 Color Camera Voltage: 12V Wattage: 4.5W Lens Port Diameter: 1"
Allen Bradley 193-EEDB Series C Overload Relay 3.2-16A NC & NO Trip Class 10-30
Allen Bradley 193-EEDB Series C Overload Relay 3.2-16A NC & NO Trip Class 10-30
Allen Bradley 42SMU-7000-QD Photoswitch Photoelectric Sensor 12' 11-28VDC 4-Wire