福建中立恒自动化设备有限公司
一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。
它采用可以编制程序的存储器,用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令,并能通过数字式或模拟式的输入和输出,控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体,易于扩展其功能的原则而设计。在工业生产的各个领域,机械加工企业为了提高生产效率,采用机械化流水作业的方式,对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代,生产线承担的加工对象也随之改变,这就需要改变控制程序,使生产线的机械设备按新的工艺过程运行,而继电接触器控制器系统是采用固定接线,很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多,随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。
发展趋势:1.向高速度、大容量方向发展
为了提高PLC的处理能力,要求PLC具有的响应速度和更大的存储容量。目前,有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。
在存储容量方面,有的PLC可达几十兆字节。为了扩大存储容量,有的公司已使用了磁泡存储器或硬盘。
2.向超大型、超小型两个方向发展
当前中小型PLC比较多,为了适应市场的多种需要,今后PLC要向多品种方向发展,特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC,其使用32位微处理器,多CPU并行工作和大容量存储器,功能强。
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810-002342-001 / PCB PROLOG EPROM 7704 SLO 107845 A / LAM RESEARCH CORPORATION
D3432 / PACK DRIVER STEPPING MOTOR DRIVER / ASAHI ENGINEERING
033-0174-100 / PRESSURE REGULATOR MANIFOLD / SEMI GAS SYSTEMS
15-050160-20(LOT OF 8) / TUBE,INJECTOR,HI PURITY / NOVELLUS
0992-40282 / UPPER TOP ELECTRODE SRD7 TOP / MATRIX
853-080798-001 / PCB 3-AXIS STEPPER DRIVER INTERFACE / LAM RESEARCH CORPORATION
2-F3-90665 / ARM, UPPER 200MM DIA. WAFER / DNS DAI NIPPON SCREEN
PS115 16004 / LEYBOLD DIAPHRAM PRESSURE SWITCH SM42 5-50 / OERLIKON
040M12A / SOLENOID VALVE ASSY WITH 6 AIR VALVES A040-4E1-34W /KOGANEI
378EV-RS-R40/ PICMG SOCKET 370 133 MHZ FSB CPU VGA LAN GBE USB 2./ IEI TECHNOLOG
0068068200 / PCB,IMP,INTF,STOP ALARM,VARIAN 00-380382-00 / VARIAN
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001-4187-01,810-550092-001 /OPTICAL ENCODER PCB DYNAMICS RESEARCH CORP/ BROOKS
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2970236-01 / ROBOT CHR CONTROLLER / ASM AMERICA INC
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1504080 / CASSETTE STEPPER CONTROLLER / EATON
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GESE-001 /PCB, DNS SK-200 /DNS DAI NIPPON SCREEN
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0021-02155 / RING, LOWER, ISOLATOR / APPLIED MATERIALS AMAT
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RR-28M-135-T / ACTUATOR, ROTARY, PNEUMATIC / ROBOHAND
99-80225-01 99-80332 / PCB BOARD SVGL INTERFACE, CIRPRO-1 05-96, 03-80225-01 SVG
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0010-00147 / WASSY,ENDPOINT INTRCONNT / APPLIED MATERIALS AMAT
1000510 / FEP, JCV240V-1000WCH, G9.5 BASE HALOGEN SINGLE-END QUARTZ
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NVJ114 /PNEUMATIC VALVE, SOLENOID, 3-PORT, 12VDC /SMC
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LR680 040297 / LIGHT REGULATOR ACB ASSY / ELECTRIC VISIONS CO
NB-GL-8C-200-XX / CFOS SUPPLY STICK 500PSIG W/GAUGE VALVE / EVANS COMPONENTS
141A-13957----S / 141AA-00100DB S078-96 MANOMETER 0-100T 10TORR / MKS
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0020-25622 / FLANGE, 300MM HEATER CLAMP / APPLIED MATERIALS AMAT
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49-0128 / SMC MXS8-30 SLIDE ASSY, CROSSRLR,AIR,UV1250SE / KLA TENCOR
104952 / CLAMP, WAFER, 5" DOMED, IVERSAL, 4500 REVB / COORSTEK INC
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715-011913-083 / PLATE, BAFFLE LOWER / LAM RESEARCH
02-325874D01 / ASSY PROCESS TUBE ALIGNMENT FIXTURE / ASM AMERICA INC
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527-34233-03 / PCB BATTERY BACKUP ASSY BOTTOM / EXCELTEQ INC
0724-044,ED090 / SMD-B,ED090A09B,JW2SN-DC24VAJW7212 / MSA
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9620-1436 / HEATER, HV / MKS
06-51290-01 / MOTOR 1-1 21VDC W ENCODER / SVG RITE TRACK
42R5BFCI-E1 / MOTOR, 115VAC, BODINE 679KC3005 115V 1PH 1.9A 60HZ 1/6HP / BODINE
2-39-47552 / MOTOR DRIVER, ORIENTAL MOTOR CSD5814N-P / DNS DAI NIPPON
1002201 / 17 HVGA STP DMD SOCKET BOARD,ASSY 1002200, TIDLP-15709-02 / TEXAS INT
112-087 / MAXON DC MOTOR 44.060.000-00.09-071 WITH REDUCTION IT / SVG
3564-K-024-K312 /MINI MOTOR SA HEDL-5540 W/GEARHEAD 13375 PL32S-64:1/ FAULHABER
9138279 / PCB, LINK LIP, R7536,008179,24904003,111620,CE6V-0,02-45 / ESI
0020-30203 / PEDESTAL, SXTAL, 200MM, NOTCH / APPLIED MATERIALS AMAT
BLM03AX800SN1/FERRITE BEAD 0201 AUDIO 500MA 180MOHM
LS-7030MR / OPTICAL MICROMETER / KEYENCE CORPORATION OF AMERICA
98-98200601 / ASO CROSSOVER 4 VALVE MANIFOLD AP3650/3657SM PRX/144 / AP TECH
0041-26882 / UPPER INLET MANIFOLD, 300MM ALD TIN / APPLIED MATERIALS AMAT
0021-21354 / SHUTTER DISK, 8 SNNF CLAMPED ELECTRA IM / APPLIED MATERIALS AMAT
796-090538-130 / VALVE-DIAPHRAM / LAM RESEARCH
BM19549R-A / COMMKEY ROBOT CONTROLLER WITH CABLE / PRI
9340-0048 / MANTLE NW100 BTRFLY 9045187 / MKS
GEDP-0111 / PCB AP-1186B INDEXER OPERATOR PANEL 200IFB 127-0 SK200 / DNS DAI
0100-00049 / PCB W PWB, ANALOG SIGNAL CND ANALOG SIGNAL COND / AMAT
810-009281-001 / PCB GAP DRIVER BD / LAM RESEARCH CORPORATION
MSM022A1FT / AC SERVO MOTOR 12" TEL PN CT2980-192017-11 / PANASONIC
K67063 / ELECTRICITY TOWER, 200V CAPACITY, 7.5 KW PHASE / TOKYO ELECTRON TEL
INR-244-424 / CONTROLLER, COOL PLATE TEMP / DNS
17236720 / LINER VG PUMP HOUSING / AXCELIS TECHNOLOGIES
05-LHR-111 / LASER HE-NE / MELLES GRIOT
UG10-001904-11 / PLATE APERTURE BASE MOD / TOKYO ELECTRON TEL
8080002K001 / 80K CONDENSING ARRAY / CTI
0090-02703() / BRUSH TORQUE AMP-FILTER ASSEMBLY / APPLIED MATERIALS AMAT
FC-D980C / O2 200 SCCM MFC / AERA
PV48W-15 / VACUUM PRESSURE SWITCH LAM P/N 768-091910-001 / PRECISION SENSORS
CV-S3300 / INDUST. CAMERA COMP Y-C VIDEO OUT, ON SCREEN MENU,RS 232 CNTRL / JAI
PW-16-STRCS-FCS-XX-SH / SUPPLY STICK W/ SS BALL VALVE 1" CF8 1000WOG / EVANS
MS61H(LOT OF 10) / YAMAMOTO MS61H DIFFERENTIAL PRESSURE 2-12MMH2O / MANOSTAR
18-007497 / WL, COLLIMATOR LENSE / THERMAWAVE
DS3810-326014-12 / WCSH-0120-0000 46 HEATER JACKET, 1/4 / TEL 2110-353384-11
649-08130 / PLATE, MODE / AB LASERS
HWS300-12 / AC/DC POWER SUPPLY 12V---27A INPUT 100-240VAC OUTPUT 12V / TDK
C-3812-367-0001 / RETAINER RMT, 2 / EBARA
244190-001 / PCB, INDEXER BOARD, TFELGE0850 / ELECTROGLAS
839-140126-301 / BAF EXELAN MDL TPL SET SI LOWER / LAM RESEARCH CORPORATION
0190-09555 / ASSY FLOW SWITCH / APPLIED MATERIALS AMAT
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040M16A /BLOCK MANIFOLD ASSY W 8 A040E1-34W /KOGANEI
1181-000393-18 / PCB ASSY 101F-01-1 SD4-S515 E760061W / TEL
710-609108-001 / STEPPER CONTROLLER / KLA TENCOR
2201675 / 8" 350 DEG OPTO WAFER ARM ASSY / LAM RESEARCH CORPORATION
853-083744-020 / ASSY LIFT WINDOW LCLP 20-IN / LAM RESEARCH
0150-20160 / CABLE ASSEMBLY EMO INTERCONNECT / APPLIED MATERIALS AMAT
4S017-687 / NIKON LIB-IF PCB / NIKON S204 WAFER STEPPER
0100-00014 / PCB, OPTO DETECT / APPLIED MATERIALS AMAT
20F8586() / MX383,LLCC GRAD GATE 3 MUFFIN FAN ASSMY / COMAIR
238401 / PWB ASY M200PC CHUCK CONTROL / AXCELIS TECHNOLOGIES
0020-34696 / SLIT VALVE LINER / APPLIED MATERIALS AMAT
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