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。
AMAT 0090-00050 Monochromator UV Lamp Interlock Switch/C, 450351
ADDRESS ADA-8 REV-B ML16 REV-B1 A/D GRAIN CONTROL, PCB, AD8-16 REV B, 103846
SMC TigerSwitch 1000 8606T 6 Port Gigabit Switch, 451581
500 A 8pF capacitors 0603N8RQD500NT
500 A1500pF 50V capacitorsLot of 8000 08052R152K500BA
APTech AP1510SM 2PW MV4MV4 4.08 APCI2 Pressure Regulator w/ Gauge, 452688
Infinicon AG 350-140 Pirani Gauge AF LI-9496 Balzers, 452397
Lot of 6 MRC 500676-00 Bearing Sputtering Tool
NSK LH20 Linear Motion Guide Rail Actuator, 17-3288, 453442
AMAT 0150-70028 Cable Driver To Boom Chamber D, 413639
Oring Kit 509476-00 B13-11
IPEC Speedfam 2210-727483-A Distribution Tubes
AMAT 0021-04419 Insulator Ceramic Heater, NGK, GIGA, 110296
10 AMAT 3320-90038 Gasket Copper For 70CF 10/PK, Farmon ID 412631
TOKYO ELECTRON SR00649 ESC QUARTZ SHADOW RING MODIFIED DD20400007 406267
AMAT 0020-13301 PANEL FRONT A/C COVER SIDE EQ MAINFRAME 407364
it Instruments UFC-1100, Mass Flow Controller, MFC, AR, 100 SCCM, 410814
it Instruments UFC-1100, Mass Flow Controller, MFC, AR, 100 SCCM, 410815
it Instruments UFC-1100, Mass Flow Controller, MFC, AR, 100 SCCM, 410816
it Instruments UFC-1100, Mass Flow Controller, MFC, AR, 100 SCCM, 410817
5 AMAT 0020-31857 Standoff Chamber, 1.50 X #10 - 32 ASP, 453462
Pittman GM9413C506, Bearing Engr, Motor, 24V, 5.9:1 Ratio. 412889
AMAT 3700-01531 ORING, ID 4.225 .210 453473
Quartz Ring, 91-00605, 321684
Fisher Scientific 11-300-49SHP Isotemp Digital Plate Stirrer, RS1307
AMAT 3400-01057 Hose Gas/Liq .375ID X .620OD 200PSI, Synth-RBR BLK (26'), 452011
AMAT 3400-01057 Hose Gas/Liq, Synth-RBR BLK (26'), 0242-70744-BNSO, 452012
3 IPEC Speedfam, 372-15142-1, Gear, Sprocket 414620
2 ASCO Automatic Switch Co 8320, Re-Hat Valves, Rebuild Kit, Valve. 329220
PITTMAN ELCOM ST N2342A212, 2048, ASSY, MOTOR, RADIAL DRIVE, LOWER, 90325-180,
7VL V81-300361-2, V08-500075-2, Board, Isolation Autoloader, PCB. 412486
6 IPEC speedfam 950291, Al collar/spacers, 1/2id x 3/4 od
AMAT 0021-76547 Bar, Bus, Load Phase 2, Main CB, Gen Rac, 409639
Opto 22 AD6 Digital analog converter module
TEL MC-31884, 1181-000631-11, SW-Board, PCB, 406225
PHD Inc CTS1US0X1 Air Cylinder 1 1/4-I
AMAT 0090-77353 Assembly Trim Sensor Mag Drwr RTRCTD 413787
AMAT 0140-01022 Harness, VAPENCL EXH, Interlock CVXZ, BKMJI 413967
AMAT 0140-01022, Cable, Harness, VAP ENCL EXH, Interlock. 413981
AMAT 0140-02299, Harness Assembly, K1/K2, Extension, Anneal Control. 413990
AMAT 0242-00206, Kit, WXZ PG5000-Wet Clean, 9GAC2. 414029
AMAT 0150-09287 CABLE ASSY TEMPERATURE CONTROL TEOS TB6-CB1 407314
AMAT 0140-09592, Harness Assembly, Current XFMR CHD D 5000 MK II-X. 414063
SMC Solenoid Valve Model VZ3343
AMAT 0100-00013 W PWB ION/TC GAUGE CONTROL, PCB, FAB 0110-00013 502591
AMAT 0140-20286, Cable, Harness Assembly, Chamber 1 and 4 AC. 414411
Disco MOGCH627---Y, 20121010028, 14-06-05E, Float, Flow Sensor. 414886
Dwyer 3000MR Photohelic Gauge, 24 VDC Regulated, 410879
Advanced Motion Controls X02 XDQ111EE20A8BDCA, 0336 31802-002, PCB, Controller.
2 CR Services SKF39996, Oil Seal, ID:4", OD:5.251", Width: 7/16" 414574
PATLITE SLE302EN tower lamps
AMAT 0021-35004 HOUSING, PCB, LED DISPLAY, XE, RTP, 409164
AMAT 0021-35004 HOUSING, PCB, LED DISPLAY, XE, RTP, 409165
AMAT 0242-00206 P1, WXZ P500 - Wet Clean **9GAC2512** CC, Kit. 329174
Parker Veriflo Valve 45300243 945AOPLPNCSFSMM2.31 414615
AMAT 0020-96163 Retaining Block, 405876
AMAT 0021-00630 PLATE, BLANKOFF 300MM DPS. 411126.
62 Spears Schedule 80 Plastic Pipe Plug PVCI D2467 414638
AMAT 3860-01648 Handler Pneumatic Tube (Spare for 0190-77171) 414639
Nikon Japan CFWN 10x / 20
AMAT 0140-70143 ASSEMBLY HARNESS, MORON SENSORS 24V SUPPLY Farmon ID 405939
9 AMAT 0020-01003 Gas Distribution, Line Adapter 413285
AMAT 7300-031569 Focus Lens
2 AMAT 26-83619-00 HOUSING, FRONT FARMON ID 405949
Fujikin Inc AJ9KT000, 101050, Shut Valve, Isolation Valve. 413309
10 IPEC Speedfam Novellus 372M-35083 PTFE Gasket
AMAT 0140-01394, Harness Assy, Link Master RS232 Converter, 411216
8 ASML 78-121462A54, Bracket, Strap Metal, Contactor Rail, FB6-0000-108, 405981
100 AMAT 3240-0057, 3/4" DIA, 1/8" PNL, Nylon Black, Plug Hole, 405982
Altera ByteBlaster II Connector, 452471
5 Osram BPX63 Photodiodes 328699
2 AMAT 3700-01881, O-Ring, GDP, 410332
IPEC Speedfam Novellus AA2203A1 Bracket Assembly, Sensor Wafer Carrier
1100 IPEC Speedfam 955907 Springs
IPEC Speedfam Novellus AD2590A1-B Collar, Lock Carrier, Quick Release
AMAT 0150-01498 Cable Assembly, Wafer LDR SMIF, Parallel Port, 409525
AMAT 0020-32999, Clamp, Plate, Coupler, P5000 MC Robot, 410428
2 Gasket, 03495-01970, 406139
100 RAF 1250-31-AL-24, Rod Anodized Al. spacers
Tolomatic 36009204 couple assy. BCES100SN
AMAT 0140-01394, P1, BT3-A23127-3-1 48/02 HARNESS ASSY, LINK MASTER RS232
2 AMAT 3080-01178 Belt 5MM Pitch 9MM Width 900GROOV, 453500
AMAT 3860-01648 Handler Pneumatic Tube Assy (Spare For 0190-77171), 413595
AMAT 0021-03554 Bracket, LDS Cabinet, Tantalum, Integ Sy 413572
AMAT 0020-27891 Rev. PA KLC 018 , 4mm, Farmon I.D. 412670
AMAT 3860-01648 HANDLER PNEUMATIC Tube (Spare for 0190-77171), 413728
10 HK120 Bearing, Wafer Clamp, H/C 412674
4 Novellus 71004-61 Oring, 6.734 ID x 0.139 W, Gasonics, 452316
Chiyoda Seiki EX-500mkII-TD Pressure Regulator, Controller, 407034
Chiyoda Seiki EX-500mkII-TD Pressure Regulator, Controller, 452998
Vexta PK564ANA-TG30 Stepper Motor, .024" Step
AMAT 0021-25129 BANKOFF, ENDPOINT PRODUCER ETCH. 407254
42 AMAT 72-50056-00 O-RING VIT 1.176IDX.070 407279
AMAT 0140-09592, Cable Harness Assy, Current XFMR CH D H-SYS, 414023
AMAT 0020-43598 Bracket Clamp DC 414031
AMAT 0021-08278 Cover, TC AMP ENCL,Tectra TI 414035
AMAT 0190-05888 HTR GL CHB 0050-51971 PART 2 TICL4 PRODU (HEATER JACKET). 407298
AMAT 0140-20683 Harness Assembly Back Panel/Serial/Video I 414045
2 TEL, Tokyo Electron, SR00264, O-ring, 406496
AMAT 0020-90144 Bus Bar Terminal Drill, 406502
7CAB9-1515-7200 Cable Assembly HD15, Male-Male, 8'
AMAT 0140-09592 Harness Assembly, Current XFMR, Chamber D, H-Sys, Cable, 414191
AMAT 0140-01022 Harness, VAP ENCL, EXH, Interlock, CUXZ BKMII, Cable, 414244
AMAT 0021-39783, BLOCK, CLIP EXTENDER. 407416
OnTrak 31-0008-027 Cyl, Air, 1-1/16 Bore x 2" Stroke, SS 402615
AMAT 0020-90144, Bus Bar Terminal 414450
AMAT 0021-36900 Cover, Probes, 300MM RTP, 402673
Kemet MEZ220041 Reel, 411978
200 Osram Opto Hyper 5mm LED, 411980
AMAT 0021-36900 COVER PROBES 300 RTP 402670
IPEC Speedfam Novellus 958260 Kit, jumpers WDLUC
10 AMAT 3700-01593, O-Ring, Top Lead Adapter, Bottom Adapter, 2 in. 412913
AMAT 0020-38895 Rev. A, WO18142/1, Bar, Bus Caps Assembly. 414948
10 SIC Electronics PA5570998A O-ring, Kalrez (MXPLID), 9107-1102, 410121
4 TEL Tokyo Electron SP24028 Pully, Conveyor, Long, LAM 13-8800-428, 410128
AMAT 0020-27891 Rev.(PA), KLC018, 4MM, Shim, Magnet Assy. 413005
STI SR106ED02 Safety Relay 44510-1062, 115VAC, Omron, Sensor, 452633
10 0770-739052 Rev.A, 000225-004022, Screw. 413075
8400-016933 Cable, Firewire, Turret, Atlas-9310 414545
3 IPEC Speedfam, Novellus, 372-15019-1 Plates, 000328-004022, Farmon ID 413160
AMAT 0010-20242 Hot Nitrogen Exhaust Line Assembly 414580
AMAT 0140-02299 Harness Assy, K1/K2 Extension, Anneal Controller 329130
AMAT 0200-09886 Finger 6" 412262
4 Browning 20XLB037 Gearbelt Pulley, 372-72586, IPEC, Speedfam, Novellus, 414601
AMAT 0020-86933 Shield, Insulator 414605
2 TOKYO ELECTRON SR00114, TEL ORING PERFLOURO, G-75(P) 406679
AMAT 3190-90003 Chain Zinc 752-414, 414614
Dell Powerconn 5316m 6-port Ethernet Module P6751
Banner 23424 IA23.45SM1.5M900, AMAT 0150-71143 Fiber Optic Cable 328765
Lamba LZS150-1 Regulated Power Supply, 453394
ASTEC ACV 24N4.8 AC INPUT CONNECTION POWER SUPPLY 402814