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
Cargocaire HC-2250-SA Reactivation Blower
Allen Bradley 2112B-BAB-4R-6S-24R-107 Size 1 Mcc Motor Starter Bucket 10HP 480V
Allen Bradley 2112B-BAB-4R-6P-24R Size 1 Mcc Motor Starter Bucket 10HP 480V 3PH
Allen Bradley 512-BJB-6P-24R Size 1 Combination Starter Disconnect 600V 7.5Hp
Teral LHW205A1.1 1.1kW 3Ph 200/220V 50/60Hz Coolant Pump
Yellow Synthetic 6P Lot of
Ingersoll Rand 8295-AB-1 Inline Pneumatic Self Feeding Pneumatic Drill 3/8 Chuck
Okuma OSP-U10M OSP700B 1911-2631-53-075 Operator Control STN Panel Ver 1.0
8" x 32" Stainless Steel Bag Strainer Housing 2" x 3/4" Ports
south Bend 4 Gallon Oil Reservoir Storage Tank
Sinico Operator Control Switch Indicator Panel
GREENSEAM Plus Snap Lock Galvanized Duct Pipe 4" Size 60"
PIG No. 404 3" x 42" Absorbent Spill Containment Socks 5
Shelby 5405 1500Lbs Dock Mount Boat Trailer Hand Winch Needs Line
Binks AA4400M LVMP Flat Tip Air Assisted Airless Spray Gun 4400 PSI
Jet MT-015D JTM-4VS X-Axis Lead Screw Assy.
Self Retracting Storing Air Hose Reel 19-1/2" OD 1/2 NPT
Motan MV02-M-151 Dry Bulk Material Loader Hopper W/ Metronet Module 1.4L Approx.
Baldor 36-14-104 2Hp 3450RPM 480V 184C Frame Cast Iron AC Motor
Accu-Sort Coplanar 24VDC 3 Foot High Intensity LED Camera Light Source
LEI P4-200-U Pipe Light Series 4' LED High Output Task Lighting Fixture 120-277V
40mm Ball Screw Nut Single Start Assembly 11mm Pitch 67" OAL
Lift-O-Flex 17000HB Portable Lifter Column Mast 60-1/2" OAL
47-1/2" L x 29-3/4" W x 3/4" D Workshop Oil Drip/Catch Pan W/1-3/8" Middle Spout
1" x 2" C Rolled Steel Flat Bar 76"
Quick-Clamp Rolled Edge Duct Nipple 10" Dia x 59" Galvanized Steel
Manual Link Chain Actuated Maintenance Slide Gate Valve 19-1/2" x 8-5/8"
Uneeda M-182142 52" x 86" RKX Cloth #120 Grit T09 Sanding Belts
12" Wide Steel Saw Cut Support Roller Stand Adjustable Height 25" To 38"
Indramat DDS03.2-W030-B AC Servo Controller
Mazak VQC-20/40B Ball Screw Nut Assembly 54-1/2" OAL 31" Travel 36mm OD
Sick 1050845 CLV650-08300A Fixed Mount Barcode Scanner Optical Focus
Fanuc A06B-6057-H403 A16B-1200-0670/04A Servo Amplifier
Eaton 92-00625-01 PanelMate 2000 Operator Interface Display Unit 91-00744-05
THK SR30W 30mm Linear Profile Rail W/1 Bearing Block 1629mm OAL
Omron Mazak Slant Turn 40N-ATC SDV CNC Lathe Motor Control Overload Monitor Unit
North American Safety Versa-Guard VG-1000 Retractable Gate Barrier 11-1/2' Long
Tsuge Type 600W Heat Exchanger Assembly W/Fans 44-1/2" L x 15-3/4" W
Tripp-lite SMART1200LCD Rack Mount Uninterruptable Power Supply UPS Need Battery
SFA 5.23/AWS EB3 377033621 Low Alloy Submerged Arc Welding Wire 5/64" 55Lb Spool
Binks 10 Gallon Pressure Pot Tank Only Galvanized Steel Replacement Part
Transnorm TS1500/140 30°Curve Conveyor Belt IR=30" N=29" Pin 'N Go
4 Light T8 48" Light Fixture With Parabolic Louver
Zenith Cutter K17261 K6 Granulator Bed Knife Blades 4-Hole 26" Set of 5
Systel 2003RAP-04 SBX2003 10 Slot Wall Mount Industrial Computer 115/230V
Milwaukee Double Ended Double Acting Hydraulic Cylinder 1-1/2" Bore 16" Stroke
22" Wide Adjustable Height 23 To 33" Conveyor Frame Support Stand Leg Galvanized
Okuma THK YH3995 55mm Wide Linear Guide Rail 1230mm OAL
Transnorm TS1500/100 Drive Pulley IR 2100mm N 1000mm 1-7/16" Inside Ext Shaft
Milnor COELDS08 Industrial Gas Steam Dryer Controller No Processor AS/IS
24" Wide x 48" Long Galvanized Steel Gravity Skate Wheel Conveyor Damaged
35" To 53" Tall Adjustable Height Band Saw Cut Bar Her Stand
J.H. Sessions Sons AD-352425 22" x 17" x 11" Instrument Equipment Road Case
Gusher 2.5x2.5x10-SFL-CDM-4L 254/256UC Barrelmount Pump Motor Adapter 13.25"
Bystronic E-0804-5-B HV Chassis Assembly Parts/Repair
4 Light T8 48" Light Fixture With Parabolic Louver Damaged.
Enerpac HPI50B00791C Air Hydraulic Booster Intensifier Pump
Lincoln Motors SSF6P1T61 1Hp 1140RPM 3Ph 230/460V Motor W 6" Mixing Attachment
Parker S57-83-MO MX60-101-005 Compumotor W/ 10:1 Ratio Gear Head 16mm Shaft
22" Wide Hytrol Style Conveyor Legs Tilt Adjustable Height 23"-30"
Speakman 1" NPT Pull Down Emergency Shower 8" Stainless Steel Head 24" Handle
Justrite 09300 10 Gallon Oily Waste Fire Proof Self Closing Shop Rag Safety Can
Bosch 0811404041 Hydraulic Proportional Valve 0831006003 0811404185
16 Gallon Rectangular Open Top Plastic Tank W/Lid 1/2"NPT Bulkhead Fittings
132mm ID Guide Post Column Bushing Anchor
Yaskawa CACR-UP130AAB Motoman Servo Pack Controller
Mazak Mazatech H-400N Ball Screw Nut 14mm Pitch 60" OAL 31" Travel 40mm OD
Universal 34K05AAP CCS-5 5" Flanged Filter Silencer
Dover Flexo P3 Textile Web Printing Manufacturing Tension Control System
33-3/4" L x 26-1/4" W x 2-3/4" D Steel Chip Oil Drip Catch Pan
Dock Boat Winch Mounting Assembly Adjustable Height 24"-32"
Sound Seal 5T498 Wall Blanket 4'x8' 0.75 Noise Reduction Coefficient 1" Thick
Durham 20" X 16" X 15" 4-Drawer Ball Bearing Small Parts Slide Storage Rack
Numatics S1011320041A00 Pneumatic Rodless Cylinder Slide 41" Stroke 32mm Bore
Numatics S1011 Pneumatic Rodless Cylinder Slide 41" Stroke 32mm Bore 145PSI
Renishaw MCU1 Touch Probe Control Joy Stick 12' Cable
Dematic Bolt Under Conveyor Belt Roller Guard 23-1/4" Frame Hole Center
Mettler-Toledo KN587769020 9215 Batchelor Batch Control Terminal Ram No. 0221
Mettler-Toledo 9215 Batchelor Batch Control Terminal Ram No. 0221 115V 1A
PVC Type 1 Polyvinylchloride Sheet 41-1/2" L x 24" W x 3/8" Thick Gray
Olympia Pack N Roll Fing Service 150Lb Capacity Utility Cart Broken Shelf
Okuma BL-MC100E-30SB 3kW AC Servo Motor 3000RPM 133V 3PH (No Back Cover)
40mm OD Weighted Steel Pinch Plate Roller 1676mm Face Width 1765mm OAL 15mm Axle
Klear-Vu 26" x 18" Convex Safety Mirror W/ Mounting Bracket
Parker 714 Digiplan 2.514kW Series Brushless Servo Motor 314Vms 11.8 Nm
Okuma 1911-2631-53-051 OSP700B OSP-U10M Operator Control STN Panel Ver 1.0
Matsushita A61L-0001-0074 Operator Control HMI Display Unit 14"
Roll Former Die 6-15/16" OD x 9-1/2"L w/1-3/4" Bore key 1 End Concave Profile
Rexroth 0532VAW20/4/FKM/211/D/Z/03/G/24/00/A1 Accumulator Shut Block 24VDC
4-1/2" OD x 48" Tall Floor Mount Guard Column Post Safety Yellow
Balluff BTL5-A11-M1000-P-S 32 Micropulse Transducer
Reliance Lau C48H2502R 1/4Hp 1725RPM 115/230V 12" Exhaust Fan
Air Handler 6B952 Pleated Air Filter,16x24x2 MERV 8 Lot of 11
Flanders Model 40 Pleated Air Filter 16x24x2 Standard Capacity Lot of 12
Wen 3410 3-Speed Air Filtration System 120V 1PH 1.0A (No Remote)
Volkmann 71139AA Adjustable Frequency AC Drive 460V 3Ph 0-300Hz Output 15Hp
Volkmann 71139AA Adjustable Frequency AC Drive 460V 3Ph 0-300Hz Output 15Hp VFD
Flywheel Guard Brake Press Punch Press 2 Piece 27" OD x 5" Wide
Parker Parflex 1/2" Hydraulic Hose 2000PSI 1/2" JIC Swivel Female Fittings 48'
Yaskawa CIMR-G5C47P5 Varispeed 616G5 AC Drive 380-460V 3PH Input 0-460V 18A Out
39-1/2" L x 29-1/2" W x 3/8" Thick Black/Speckled PVC Sheet
72" x 18" Pressure Sensitive Safety Mat 30VAC/30VDC
Enerpac B5003 Air Hydraulic Booster 3.7 in3 Per Stroke 1:5 Ratio 5.20" Stroke
Xycom XVME-655 XVME-976 CPU Unit Processor Card
Porsche 97036298001 20x11.5 Panamera Charcoal Alloy Rear Wheel Rim Damaged
Quincy Air Compressor Air Intake Filter Assembly 4" x 4-1/2" Ports
24" x 16" Galvanized Steel Spiral Duct 22 Gauge Increaser/Reducer
Loctite Bond-A-Matic 3000 Light Viscosity Adhesive Reservoir With Gast Agitator
PP 5047 0.200" Polypropylene Strapping White 7000m Roll
Transnorm TS1500/100 Drive Pulley 82.68" 39.37" Curve Conveyor Roller 1-7/16"
Rex Rexnord A-111-WS Engineered Chain Cottered 4-3/4" Pitch Lot of 115 misc pcs
Fife CDP-01-MMM Web Guide Tracker Controller 230V
40mm OD Weighted Steel Pinch Plate Roller 1600mm W Face 1682mm OAL 15mm Axle
1/8" Thick Nitrile Rubber Material Lining 18" x 153"
15" Wide Steel Saw Cut Support Roller Stand Adjustable Height 28"-46"
ProStar StarCore 6 Metal-Cored Wire. Wire 1/16" Diameter 44LB Spool
Fanuc A06B-0241-B100 1.8kW 2000RPM 255V AC Servo Motor W/ Encoder A860-2000-T301
Fanuc A06B-0241-B100 1.8kW 2000RPM 3Ph 200/240V AC Servo Motor
Hubbell Cat 3004 Type K1 98A .680 Ohm Coil Resistor
THK HSR25 1597mm Long Linear Rail W/ Bearing Block
Okuma MIV02-1-B1 MIV Inverter Drive 2.0kW
Syncrogear E434/T10T222R447F 26:1 Ratio Gear Motor .33HP 230/460V 3PH 68RPM
Reliance 1HP Pressure Blower 7" Wheel Diameter 3450/2850RPM 240/480V 3PH
Carlon 2-1/2" PVC SCH40 Conduit 90° Deg Elbow Slip x Slip Ridgid Lot Of 7
Uni-Spray 1-1/2" Pipe Fixed Angle 5060 Tip Spray Nozzle Lot Of 135
Okuma BL-MC100E-30SB 3kW AC Servo Motor 3000RPM 133V 3PH W/Encoder
Warner Swasey 1" Ball Screw
Uneeda M-133548 52" x 103" ARSF0 Paper #220 Grit T40 Sanding Belts
20mm OD 20mm Pitch High Lead Ball Screw 54" OAL
Keba EC100A03/C0L/CAN/4MB/1/58056 16 Slot PLC Chassis Rack
Igus 380.01 88" OAL Feed Thru Cable Carrier Energy Chain 6-3/4" x 1-1/2" ID
Mitsui MFG. MSG-200MH Surface Grinder Vertical Feed Handwheel