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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SY07-05 / SAMSG RECTICLE CONTAINER / SEYANG ELECTRONICS
MAP42-1012 / SWITCHING POWER SUPPLY 40 WATT 12 VDC / POWER ONE
J3295A / HP 10BT/100TX NIGHT DIRECTOR / HP (HEWLETT-PACKARD)
A90-003-01 / PCB ASSY INTERLOCK AURA A1000 WITH EXCHANGE / GASONICS
RSD120 / LIQUID LEVEL MONITOR 115VAC 885262 / OLIN HT SPECIALTY PRODUCTS INC
GPIB-1014D / PCB VME H3-6480 180832-01 180830D-01 180733-01/NATIONAL INSTRUMENTS
E15005504 / PCB ASSY MANIPULATOR / VARIAN
1-807878-D / PCB D024-2 / HITACHI
STP-H600,H1000/ SEIKO SEIKI TURBO MOLECULAR PUMP CABLE 10M P017 19 20M / LEYBOLD
8-26-84 / PROBE MINI FITZ MINI PHILO, C-9800 BE / WENTWORTH LABS
651200159 /PCB, CBP8-XT BACKPLANE FOR L3510 /DIVERSIFIED TECHNOLOGY
PB 1-2-A (TYPE TGR-3-PP) / SANDPIPER PB 1-2-A POLYPROPYLENE DIAPHRAGM PUMP /WARR
839-491891-001 / THERMOCOUPLE, WITH CONNECTOR / LAM RESEARCH
0140-20835 / HARNESS ASSY, XFER CH RETROFIT / APPLIED MATERIALS AMAT
SQM150-1433-6 (L3) / POWER SUPPLY 02-0025-028 / SSI
3381-000101-14 / STAGE X BASE BOARD, TYPE 2 / TOKYO ELECTRON TEL
2-39-87008 / SENSOR, LASER SENSOR LS-H91F-A-Y / SCREEN SPE USA
SGDM-01BDA / PACK SERVO 100-115VAC 1PH 3A - 0-115VAC 3PH 2.4A / YASKAWA ELECTRIC
SDC02150G / WBL-PS2V150A POWER SUPPLY 270-324V DC 1.8A / SHINDENGEN
103047(LOT OF 8) / ADVANCAIR PRE 11IN X 15.5IN X 4IN / FARR 3030
91048-01 / PENDULUM PLATE TELLER / VAT
E3122-266601 /PCB RF KEYSIGHT 5182-7658 33-5545 05731-5809 E3122-26601/ AGILENT
SGLFPF6101VM4 / FILTER SGLFPF-6101-VM4 SEZ, 2006659 / PALL
50-0002-01 / PROBE HEAD,TYPE A, PITCH 040 / KLA TENCOR
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INR-244-418 / DPR300-00142 CONTROLLER POWER SUPPLY SK200 / DNS DAI NIPPON SCREEN
03-153031-00 /CABLE ASSY /NOVELLUS
PM200-3 /MOTOR PROCON PUMP, EELQ-8T 0.2KW 1410-1710RMIN 200V 50-60HZ/NIPPON OIL
VFC209A-7W /RING COMPRESSOR, 3 PHASE, 2 POLES /FUJI ELECTRIC CO LTD
5003ANDCB5 / H V POWER SUPPLY, 28VDC, 0 TO -2KV / CPS HIGH VOLTAGE SUPPLIES
300004-02 / BRASS VALVE G625PC2R / CARTEN
346023-8005-000 / MICRO SCOPE JOYSTICK / ZEISS
CQ2BS63-50 / SMC CYLINDER / SMC
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BBMXC-1 / PCB BOARD IGD067 / HITACHI
9045 / ENODE,POWER SUPPLY / PARTICLE MEASURING SYSTEMS
P22NXRB-LDF-NS-00 / ASSY 1.8 STEP MOTOR B POLAR SERIES 1500 RPM / POWERMAX
8612A / KBWT-112 DC MOTOR SPEED CONTROL 12.0 ADC / KB ELECTRONICS
0022-04331 / BRACKET, MFC ROTATION/LINER PURGE, / APPLIED MATERIALS AMAT
102948-001 / PCB QSRS III COMMICATION BOARD / MICRO CONTROL COMPANY
MQMA022S2G /AC SERVO ROTATION MOTOR CFNE0113587 / PANASONIC
8043083G125 / FLEXLINE, HELIUM 0.75 INCH 10 FT / CTI
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2800816 / PCB-AMN CONTROL / LAM RESEARCH
715-249092-001 / PL, R, CONFINEMENT, 150MM ESC / LAM
1328586 / CLEANROOM TECH. AUSTRIA, CONTROL , AIR BOY HR1 2, FAULT / CLEAN CO.
R1F030(LOT OF 10) / FILTER, PALL PROFILE II, 10IN, 3 MICRON / PALL
0020-10727 / COVER TOP 4 IN 5IN 6IN TEOS / APPLIED MATERIALS AMAT
796-098654-003 / RING LKGVAT V SER 65 DN100 / LAM RESEARCH CORPORATION
17-260362-00 / SHIELD, BARREL, GRIT BLAST, PVD 300MM / NOVELLUS
0190-26809/ YAMATAKE SENSING CONTROL LOG-1222 REV 002 RF FILTER / AMAT
2-F3-D0417 /TUBE, PR NOZZLE SK-200 (2-F4-D0658, JOINT PR NOZZLE ATTACHED/ SCREEN
155401042 / PRESS REDUCTION VALVE D50 PTFE / GEORG FISCHER
0200-09083 / SHIELD,QUARTZ,150MM,AMT 0200-09083 / APPLIED MATERIALS AMAT
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0200-07582 / DEP RING / APPLIED MATERIALS AMAT
678886 / HOSE METAL FLEX 7800 / APPLIED MATERIALS AMAT
3486-OCV / PCB MOTHERBOARD / SVG
3400-01109 / HOSE 20' FLEX LINE CRYO HE 3/4" DIA MALE, CTI 8081608 / AMAT
108833 /MOTOR ELECTROCRAFT 242-027-0142 IEC 341 S-1 DUTY 4.5A 45VDC /SCHLUMBERGE
FUFL-915-6.35 (LOT OF 10) / NIKON PRECISION INCFUFL / FUJIKIN
0020-33810 / COVER, GAS FEED ASSY, DSP A3 / APPLIED MATERIALS AMAT
G3PE-225B-DC12-24() / RELAY, SOLID STATE HEATER CONTROL / OMRON
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02-54545 / BLOCKER PLATE
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0020-30198 / TUBE, EXTERNAL, TAPERED, EXT CATHODE / APPLIED MATERIALS AMAT
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000-0107-001 / PCB, HINE INDEX CONTROL, W/000-0108-001 / ASYST TECHNOLOGY
3M10-252426-13 / RING, WEIGHT OBGP B / TOKYO ELECTRON TEL
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UG10-001191-11 / SHIELD CHAMBER G / TEL EPION INC
UG10-001196-11 / SHIELD CHAMBER L / TEL EPION INC
UG10-001194-11 / SHIELD CHAMBER J / TEL EPION INC
UG10-001200-11 / SHIELD CHAMBER P / TEL EPION INC
UG10-001190-11 / SHIELD CHAMBER F / TEL EPION INC
UG10-001189-11 / SHIELD CHAMBER E / TEL EPION INC
UG10-001188-11 / SHIELD CHAMBER D / TEL EPION INC
UG10-001197-11 / SHIELD CHAMBER M / TEL EPION INC
0045-00126 / PUMPING CHANNEL, ANODIZED, PRODUCER 200M / APPLIED MATERIALS AMAT
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152-1025K / HPS PNEUMATIC VALVE / MKS
2-F2-33110 / ARM, UPPER, 150-MM / DNS DAI NIPPON SCREEN
560-0040 /OBJECTIVE APERTURE ASSY ELECTRON SCANNING MICROSCOPE /HITACHI
0817409 / FACEPLACE
420012204 / DIAMOND METAL BOND DISCS 9" 70UM 60-4402-3510-3 / 3M
2101364 / CLAMP-RING 200MM 60 DEG HF WFR / LAM
SM07C101 / GAUGE LINEAR GAUGE 25MM (542-60 / SMC
00-88007-001 / TYPE 6E00811,SERVO, AMPLIFIER / PMI MOTION TECHNOLOGIES
LS-30-S377 / AMPLIFIER LEAK SENSOR ORG STR / TECHNICAL TRY
0040-31998 / WELDMENT, BELLOWS ASSY, UPPER, DXZ / APPLIED MATERIALS AMAT
523-12110BJ000 / CONTROLLER AUTO MAN BACKUP 532 / MOORE INDUSTRIES
0475-0015-0003 / BELLOWS,8250 BEAMLINE / AXCELIS TECHNOLOGIES
9407-0045 / PCB 16K PROM / ROM MEMORY / INTEL PWA 1000669 / NANOMETRICS
13-8882-265 / BACKPLATE,DUAL SENSE / LAM RESEARCH CORPORATION
77-604-080710-008 / STEPPER MOTOR DRIVER / HERMES MICROVISION INC HMI
810-25368-001 / PCB RELAY BD LAM 2080 / LAM RESEARCH CORPORATION
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CT2980-092273-11/OVEN ADD ON BOARD#01 TAB2101AMF TAB2100 HTE-0A1-B-11/TOKYO ELEC
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1181-000255-18 / TEL-ALPHA 8S BOARD MC-31042A / TOKYO ELECTRON TEL
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0100-00060 / PWB ASSY, CHOPPER DRIVE II / APPLIED MATERIALS AMAT
8080011K007 / SHIELD, RADIATION, CRYOPUMP OB-8F 808001 / CTI CRYOGENICS
200001 / CONTROLLER, AUTOFOCUS PENDENT, RS 232, 120V AC, 6 AMPS / PRMS INCORP.
0020-25018 / BASE RECIEVER / APPLIED MATERIALS AMAT
5010-646921-11 / DISC 300.3 / TOKYO ELECTRON TEL