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。
WCDP025L1 / DIAPHRAGM PUMP / MILLIPORE
H110932A / PCB BOARD, GCA-1 / HORIBA
P119G-25H-F12LS-X / MOTOR VALVE, 25 PSIG INCR, 250 MAX PSI, 1A 115VAC
3020-00439 / LARGE ROTATION CYLINDER COMPACT / APPLIED MATERIALS AMAT
3700-03760 / ORING, K#281 14.984 CSD 139 8085 / KALREZ
1001-0330 / SIDE IT TWD-16UUE PILLOW BLOCK / NIPPON BEARING
910-11-0002 / TRANSDUCER RS232 ANTARES FORE LINE 0000012X9284 / MKS
1746-NI04I /ANALOG COMBO MODULE IO COMBO SLC500 0902FAC1P 40846-03 ALLEN-BRADLEY
UG87-000423-11 / TUBE ASSY WATER FAST SCAN / TEL EPION INC
LISTING208-2 / W208-200 HELIX/HI-TEMP 20AWG SENSOR, RESISTIVITY PROBE / THORNTON
VE-1104X / SIDE-SHIELD MAIN CHAMBER ARC SPRAYED / VENZON ENGINEERING
MAELR006-F / CHUCK TABLE 6'' / DISCO
MOHLR006-B / CHUCK TABLE 6'' / DISCO
NVX3-144 / ACTUATED PRESS 1103893 60PSIG MEDIA PRESS 100PSIG / FURON
48-07 /RL100,94V0-0,DAUGHTERBOARD LGA V1.1 /ENTEQ
5-39-03503 / CDU10D-E5737-55 AIR CYLINDER / SMC
810-06884-100 / CBL, ASSY CCC OCTUPOLE/COLUMN, CDSEM 8XXX / KLA TENCOR
5DA-010-D0A / DIFFERENTIAL PRESSURE SWITCH / NORGREN
16753A / PCB MCB MCB-1 MOTOR INTERFACE MOTOR CONTROL / SEMITOOL
14830B / PCB INP 0 INPUT-0 STD BIT INPUT BOARD SLOT 8,9,10 / SEMITOOL
7310-4697-01 / PCB BOARD , 3-PHASE 0 CROSSING / AG ASSOCIATES
139789 / WATTS REGULATOR,836-005C / WATTS
AP-1186B /PCB, OPERATOR PANEL AP-1186B BUSY START RCV ONLY END /DNS DAI NIPPON S
IC693ALG391 / 6363124, B70191 PLC-OUTPUT, ANALOG FANUC / GE FANUC
MS4312B-2 / MINISAFE LT CRTN 12" RANGE 30FT BEAM SPC .5 / STI
0190-02506 / PCB, DIP CDN491, FOR 0090-01220 / APPLIED MATERIALS AMAT
0190-04457 / PCB DIP CDN491-AB-1 DEVICENET 48 DIGITAL 3U, FOR 0090-01220 / AMAT
E17319560 / LINER, 90 DEG BEAM DUMP W-N2 / APPLIED MATERIALS AMAT
RE3Z81-000002-12() / PCB ASSY, TDB114-1-IO2 / TOKYO ELECTRON TEL
790-067213-004 /NON-BARRIER VAT DOOR, CU / LAM RESEARCH CORP
079021 / PCB BOARD, PWG SUPPLY / FUSION SEMICONDUCTOR SYSTEMS
CSD5814N-T / PCB 5 PHASE DRIVE24V 2.1 AMP / ORIENTAL MOTOR
UPM3-F1212-MT / VALVE,DIAPH,M-TURN,3/4,PFA,3 / E S TECHNOLOGIES, INC
440-427 / TURBO WATER COOLING BOTTOM PLATE / EDWARDS
853-180067-001 / ASSY, SEC MANF, RGH PMP BYP, HTD / LAM RESEARCH CORPORATION
879-943-01 / PCB TDR CAL CARD / TERADYNE
859-0927-007 A / 92 SERVO COMPENSATION PCB ASSY 859-0904-005C x3 / 006C x1/ ASML
05060-816 / ASSY PCB CPU ALIGNER 05059 / HINE DESIGN
30-17-34 / STEPPING MOTOR JCTION 30-17-34 / THALES
1624662 /CABLE ASSY FEMALE 4A7A3-A, 4A7A3-B,4A7A1J3,4A7A1J4/EATON
1624663 /CABLE ASSY FEMALE 4A7A4-A, 4A7A4-B,4A7A1J5,4A7A1J6 /EATON
1624667 /CABLE ASSY FEMALE 4A7A6-A,4A7A6-B, 4A7A1J9,4A7A1J10 /EATON
0020-26547 / 200MM CLAMP RING / APPLIED MATERIALS AMAT
248228-002 / WAFER LOADER INTERFACE PCB / ELECTROGLAS
01079-80098 / SKTBD 0S4 DOR III FBGA 15MM 12SITE/ ADVANTEST
0090-A0692 / PMT-100 DETECTOR ASSY / APPLIED MATERIALS AMAT
1501820 / PCB ASSYMBLY DATALOCK SLAVE / AXCELIS TECHNOLOGIES EATON
CV16-K1K1-NCVV / VALVE PNEU BLWS ANGLE N/C KF16 VITON SEALS 3870-0086 AMAT / MKS
PCM23001A / DRIVE, DC, 115/230VAC, 90/180VDC, 1/8-1HP@90VDC, 1/4-2HP@180VDC /
1D10-401239-11 /TOKYO ELECTRON SHAFT, DRIVE , GAP DRIVE, DRM2 /TOKYO ELECTRON TE
0140-14388 / HARNESS ASSY, MOTOR DRIVER INTERFACE RTV / AMAT
581-04-009 /METRON ELBOW,1-4 -1-4 BULKHEAD ION /APPLIED MATERIALS
0200-05337() / LIFT PIN 4000L FIXED FLOATING 300MM / AMAT
MXS20-10A-F9PWL / SLIDE, LINEAR / SMC
EWS15-12 / REGULATED POWER SUPPLY / NEMIC-LAMBDA
E17195650 / BLOCK INSULATOR / VARIAN
94-2767 / HUB- NETWORK- GASONICS / NOVELLUS
678265 / INJECT PORT / APPLIED MATERIALS AMAT
54430-PC3127 /PCB BOARD, SORTER 1, 54430-BA13, IM12-MB /NIDEK
851-7220-007 / PCB, DMC, A5164, A5165 PERKIN ELMER MICRASCAN ASSY / ASML
104887001() / GRAPHITE SHIELD,MASS,SLIT / VARIAN
9700-8665-01 / LOAD PORT DATA PROCESSOR MODEL 9100 / ASYST TECHNOLOGIES
MBMC1E2ASA01 / BRUSHLESS MOTOR, 1 PH. 200-240V, 1.5A, 3000RPM / PANASONIC
SS50-P1 ASSY / SYNCHRONOUS - STEPPING MOTOR, 16.6 RPM, 120 V, GEA / SUPERIOR
10-030N / MESH TI PLATINUM INSOLUBLE ANODE 200 MICRO INCH TEL K17211881 / TITAN
MOENSA06--AZ / BRUSH / DISCO
PS5R-A24 / POWER SUPPLY,AC-DC DIN RAIL,SWITCH MODE,1 OUTPUT / IDEC
VIF-AA1C / INTERFACE DC24V INCLUDING CABLE ASSEMBLY / EBARA
955LSI55 / VLAVE, 2-WAY, 45700606, 0027654-05 081914 / VERIFLO VALVES PARKER
TAS300 / TDK BREAKER TYPE F1 100-240V 400V / TDK
3F86-000108-11 /HAENESS, IF / JAE JAPAN AVIATION
3R86-000233-11 /HARNESS, SERIAL EXTENSION, DB-C8-J10 /JAE JAPAN AVIATION
3R86-000308-12/ HARNESS, LOADER RS, DB-C8-J10 /JAE JAPAN AVIATION
UDX5114 / 5-PHASE DRIVER SUPER VEXTA ORIENTAL ED CO / VEXTA
PPC-T0006A-11 / PLD BOARD T0B1006 CT2980-091236-11 / TOKYO ELECTRON TEL
1501320 / PCB OUTPUT BUFFER 36 BIT / EATON
E15004780 / PCB ASSY POSITION EQUALS REV B / VARIAN
GLFN4400VMM4 / IN LINE FILTER / PALL
S202-K3 / CIRCUIT BREAKER, K CURVE, 2-POLE, 3A, 480Y/277 VA / ABB
16320-66551 / SWITCHING MATRIX, AGILENT PCB / HP
DS012-012297-1 / FUJIKIN, AIR VALVE FBNHDLFS20-952 / TEL
852-494005-001-B / OPTICAL END POINT CONTROL FOR 9500 A-4 / LAM RESEARCH
206036-3(LOT OF 61) / RECEPTACLE, CPC HANG, 16 HOLE, CH / ZMISC
3SB3400-0B / BLOCK, CONTACT NO / SIEMENS
402316-008 / POWER SUPPLY, MODEL VHR-10, 12V 5.0A / NEMIC-LAMBDA
853-015030-001-C-3611 / MINIMATCH AUTO MANUAL CONTROL TCP / LAM RESEARCH
0040-23872 /BLOCK, CHAMBER PILLOW /APPLIED MATERIALS AMAT
68187 / PROM BOARD SCHEM REF NO 681830 / APPLIED MATERIALS AMAT
XC 60-1500 / VACUUM CAPACITOR 1.2KV / COMET GROUP
902999-001 / PCB, ASSY 302377-001 MDISKAT-0479A / WINSYSTEMS
0020-09029 / 5200 EXTENDED CATHODE / APPLIED MATERIALS AMAT
UDK5107NW-A2 / DRIVER MOTOR VEXTA / VEXTA
A2049 / AKRION V3 ROBOT CARRIER ROD COUPLER / MARLER ENTERPRISES
601369 / ROD-ASM RF LWR ELCTD AMN / LAM RESEARCH CORPORATION
0100-77040 / PCB ASSY,HEAD PENUMATIC CONTROLLER / APPLIED MATERIALS AMAT
0100-00053 / W PWBA BRIGHT/CONTRAST / APPLIED MATERIALS AMAT
MW2620-1153 9102/Y PRECISION MOTOR BM 10328 MKE2620-FC-500-1 2010-11/IND. COMP.
710-400180-00 710-404576-00 /PCB BOARD, PCB-PZTFED, 073-400570-00/KLA TENCOR
2260.815-57.216-200 / MAXON DC MOTOR, SWISS, HEDS-5500 / MAXON
92107-002 / PCB SEM 1800 TV RATE CONTROL SYSTEM 800-2436 / AMRAY
90792D-1 / PCB 6R FRONT PANEL CONTROLLER PCB 800-1707D SCHEM. 800-1270D / AMRAY
E14000570 / PCB ASSY D-E15000570 PULSED LIGHT CURTAIN TRANSMIT DRIVE / VARIAN
14287-01 / QUARTZ PLATE FOR GASONICS POSSIBLY L3510 9GAC0001 / GASONICS
0021-35096 / 0020-38967, POLY CLAMP CARRIER,5200 SYSTEM / APPLIED MATERIALS AMAT
3000332 / ATHENA-AT16 / LAM RESEARCH
0141-0019-0001 /ACTUATOR ROTARY DOUBLE ACTING 18 IN. LBS. /AXCELIS TECHNOLOGIES
11515 / PCB COMMICATION INTERFACE ASSY 11514 B/11514-01 / AEHR TEST SYSTEMS
80164B1-02 / EXHAUST FLOW VR3 CONTROLLER PCB / SVG
0020-06231 / COVER, CATHODE HEX / APPLIED MATERIALS AMAT
2008802-00 / SEZ- BELLOWS VALVE 1/4IN VA A, NEEDLE TI / LAM RESEARCH
0020-22362 / 6 LIFTER TC / APPLIED MATERIALS AMAT
DS1110-327479-11 / SEAL PROTECTOR / TOKYO ELECTRON TEL
PM200-002 / PWA 8000-1110 CONTROLLER PARTICLE MONITOR / HIGH YIELD TECHNOLOGY
PNVAK-3BAR ASSEMBL / SOLENOID 24V,DC 8W / BURKERT
102905-002 / ABESMEM - REP RATE GENERATOR CARD / MICRO CONTROL COMPANY
P61002111102 / O/P RELAY CONTACTS 2A, 120-240 AC / WEST TEMPERATURE CONTROL SOLN
WG2F01HC1() / FILTER, INLINE GAS / MILLIPORE
15422800 / CIRCUIT BOARD 86212801 / APPLIED MATERIALS AMAT
840B-16154 / BARATRON PRESSURE TRANSDUCER, 840B-16154 / MKS
CT30-250 / SHUTTLE ASSEMBLY FOR AT300 / WHITE KNIGHT
18-007612 / ARRAY DET. BEAM SPLITTER / THERMAWAVE
011076-001 / PCB MOTHERBOARD / COMPAQ
G4PB24, G4 ODC5(13), G4 IDC5 / CONTROL BD, INPUT 10-32 VDC, OUT60VDC OPTO 22
VR200 / VACUUM REGULATOR -1.3~-1000KPA / KOGANEI
850B22PBB4GA-B / 200 PSIA BARATRON PRESSURE TRANDUCER CAPACITANCE MANOMETER /MKS
MXQ12L-20A-M9B / AIR SLIDE TABLE, RECIRCULATING LINEAR GUIDE / SMC
E030874 / PCB OZINTERFACE ASSY / MKS
0-07-A4364-5 / SPIN CHUCK OD45MM / SCREEN SEMICONDUCT SOLUTIONS CO.
P51530-T0 / SIGNET PADDLEWHEEL FLOW SENSOR,198801663 / GEORG FISCHER GF
FPR-UDDF-71-9.52-2-316LP /FUJIKIN O.P. 0.34-0.49 MPA TYPE N.C. PNUEMATIC VALVE
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