福建中立恒自动化设备有限公司

1．输入/输出单元

输入/输出单元通常也称I/O单元或I/O模块，是PLC与工业生产现场之间的连接部件。

PLC通过输入接口可以检测被控对象的各种数据，以这些数据作为PLC对被控制对象进行控制的依据；同时PLC又通过输出接口将处理结果送给被控制对象，以实现控制目的。

由于外部输入设备和输出设备所需的信号电平是多种多样的，而PLC内部CPU的处理的信息只能是标准电平，所以I/O接口要实现这种转换。

I/O接口一般都具有光电隔离和滤波功能，以提高PLC的抗干扰能力。另外，I/O接口上通常还有状态指示，工作状况直观，便于维护。

PLC提供了多种操作电平和驱动能力的I/O接口，有各种各样功能的I/O接口供用户选用。I/O接口的主要类型有：数字量（开关量）输入、数字量（开关量）输出、模拟量输入、模拟量输出等。

常用的开关量输入接口按其使用的电源不同有三种类型：直流输入接口、交流输入接口和交/直流输入接口。

常用的开关量输出接口按输出开关器件不同有三种类型：是继电器输出、晶体管输出和双向晶闸管输出。

继电器输出接口可驱动交流或直流负载，但其响应时间长，动作频率低；而晶体管输出和双向晶闸管输出接口的响应速度快，动作频率高，但前者只能用于驱动直流负载，后者只能用于交流负载。

PLC的I/O接口所能接受的输入信号个数和输出信号个数称为PLC输入/输出（I/O）点数。I/O点数是选择PLC的重要依据之一。当系统的I/O点数不够时，可通过PLC的I/O扩展接口对系统进行扩展。

2．通信接口

PLC配有各种通信接口，这些通信接口一般都带有通信处理器。

PLC通过这些通信接口可与监视器、打印机、其它PLC、计算机等设备实现通信。

PLC与打印机连接，可将过程信息、系统参数等输出打印；与监视器连接，可将控制过程图像显示出来；与其它PLC连接，可组成多机系统或连成网络，实现更大规模控制。

与计算机连接，可组成多级分布式控制系统，实现控制与管理相结合。远程I/O系统也必须配备相应的通信接口模块。

3．智能接口模块

智能接口模块是一独立的计算机系统，它有自己的CPU、系统程序、存储器以及与PLC系统总线相连的接口。

它作为PLC系统的一个模块，通过总线与PLC相连，进行数据交换，并在PLC的协调管理下独立地进行工作。

PLC的智能接口模块种类很多，如：高速计数模块、闭环控制模块、运动控制模块、中断控制模块等。

121447700/ HEAD, ASSY, GIMBAL / LAM

0010-09198 /TEOS AMPULE ASSEMBLY AMPOULE /APPLIED MATERIALS AMAT

14-013582 / PCB ,THERMAWAVE 2600 NON-DUV SBC PSC-586 VER:D3 / THERMAWAVE

0021-61087 / EDGE RING FLAT ENP, SICONI, PRODUCER GT / APPLIED MATERIALS AMAT

BG4-2035 / IPIF-III / CANON

1810-121299-11 / SUSCEPTOR ESC IEM-8N-UP TYPE 2 / TOKYO ELECTRON TEL

205041 / INDEXER ASSY 200MM, M200 / AXCELIS TECHNOLOGIES

0021-35163 / REFLECTOR PLATE, CHMBR. BOTTOM / APPLIED MATERIALS AMAT

19-137359-00 / TREK ECS POWER SUPPLY MODEL 684-1-L-CE, 6 PHASE / NOVELLUS

02-00269-00 / ASSY,ARM ROBOT ARM SET ONLY WITH EXCHANGE / NOVELLUS SYSTEMS

435716-0000-000 / HXP 200 C LIGHT SOURCE LQ-ME20 / LEISTGSELEKTRONIKGENA - LEJ

4657448-0002 / FURNACE DIVISION, BTBS, KS 0073 T0761 / ASM AMERICA INC

TS-1A /TILT SCAN WAFER ALIGNER W/4000-6002 Y  X AXIS X-W/DAU -60053/ KENSINGTON

770-773250-001 / ASSY, SWITCHER PS1 / KLA TENCOR

297-14295-1 / PCB INDEXER BOARD / BROOKS AUTOMATION

123087300 / BELT TENSIONER ASSY / LAM

02-263840-00 /  NOVELLUS ASSY, STAGE SINGLE HEATER 200MM / NOVELLUS SYSTEMS

0010-09476 / PUMP ASSY HEAT EXCHANGER FRANKLIN 1303232103, BURKS 10AT0056 / AMAT

8107040G001 / ANSI FLANGE CRYO TORR 8F HIGH VACUUM PUMP / CTI CRYOGENICS

1530A-12-0145_SA / 300MM TC WAFER SA WIRED 1530 TC K 12 P-6P / TENCOR

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5001-1015-00-00 / ENDPOINT CONTROLLER XINIX DS R MODEL 1015/ LUXTRON

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CS014-000722-1 / TEL KOMATSU ABBAA00220 CIRCULATOR, NE-363C / TOKYO ELECTRON

26-8885-055 / KIT-ANNUAL PM RECIR G TT / LAM RESEARCH

0040-43585 (LOT OF DM S / ADAPTER, CONTROLLER / APPLIED MATERIALS AMAT

0021-10588 /PLATE, INTERNAL PUMPIGN CHNL ASP, 150MM /APPLIED MATERIALS AMAT

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780-50012-000 / TRANSFER ARM CERAMIC 300MM CD SEM 8450 ECD / KLA TENCOR

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0046681-000 / BLOWER ASSEMBLY BRAKE / KLA TENCOR

0100-00496 / POWER CONTROL ASSEMBLY / APPLIED MATERIALS AMAT

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0020-42003 / BACKPLATE DOUBLE SEALI / APPLIED INDUSTRIAL

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3M10-150385-14 / SHIELD BOTTOM ESP / TOKYO ELECTRON TEL

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0040-36180 / TXZ HEATER ADH / APPLIED MATERIALS AMAT

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0020-23549 / SHIELD, UPPER, AL ARC-SPRAY, SST, 300MM /APPLIED MATERIALS AMAT

10-11147-K-E50JJ SWITCHBACK 6600 POWER SUPPLY / SOLID STATE COOLING SYSTEMS

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853-002030-001-AN-3609 / 4 MOTOR MOT CHAMBER ASSY 853-006233-001-C-3710 / LAM

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DUAL MULTI-LINK / KINSINGTON LAB. INC.,DUAL MULTI-LINK,97-396-120 REV F / KINGS

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0010-09256 / GAS  4,5,6 TEOS / APPLIED MATERIALS AMAT

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6314 / DC ELECTRONIC LOAD MAINFRAME CHASSIS ASSY WITH 63107 / CHROMA ATE INC

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DSB2P101-121E-009H /DSB2 DIGITAL SERVO AMPLIFIER POSITION CONTROLLER ETEL/ ETEL

1214130 / IHC CATH PS EMS 600V 1.6A MOD / AXCELIS TECHNOLOGIES

E17417400 / LINER EXIT DPA GRAPHITE/ APPLIED MATERIALS AMAT

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0041-49938 / SMD PLATE, COATED, CHAMBER LID SIDE 1 F / APPLIED MATERIALS AMAT

0242-11536 / KIT, MIMI PM RECYCLABLE / APPLIED MATERIALS AMAT

42333-00 REV D / GENUS POWER SUPPLY INJECTOR PD 2A8 / GENUS ION TECHNOLOGY

00481549 / ESS POWER SUPPLY LAMBDA EMI ESS 60-250-2-D-LB-TP-TC-0806 / LAMBDA

002-7502-02 / PCB WITH ACRYLIC RAIL / BROOKS AUTOMATION INC

T3BIB-33457 / VALVE, VACUUM THROTTLE VALVE OPTIMUM CNDCT796-214418-100 / MKS

NDP-20BST-EP-20RA-OP-3 / YAMADA NDP SERIES AIR OPERATED DIAPHRAGM PUMP / YAMADA

A193-55M / PROCESS WAFER ROTOR / ENTEGRIS

A182-60MC / SRD WAFER ROTOR 2900RPM MAX H BAR IN BAL 0-25 / ENTEGRIS

198331 / PCB 4-CHANNEL MTR CONTR / KLA TENCOR

ORION STAR / PH METER, PH PROBE, STAND / THERMOFISHER SCIENTIFIC

0010-08480 / ASSEMBLY, HEATER, BLOCK, LINE/FVC, TXZ 3 / APPLIED MATERIALS AMAT

61-CHA-00VS2-01 / SPLITTER(CHG'D TO F-SERIES PER B. FELT) / FOCUS AUTOMATION

0040-07198 / WAFER LIFT 300MM PVD MOT MOTOR / APPLIED MATERIALS AMAT

722A53TCB3FA / TRANSDUCER BARATRON 12-32 VDC 5000 TORR/ MKS

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104137-001 / PCB HPB-2 SCAN VECTOR STORE / MICRO CONTROL COMPANY

11015940 / ASSY WATER COOL APERTURE RESOLVING HSG EXIT 90KV / AXCELIS TECH.

0100-01603 / ASSY PCB SPILL SENSOR G-PLIS / APPLIED MATERIALS AMAT

9090-15270 / INLINE TRANSFORMER, FI ROBOT/ALIGNER / APPLIED MATERIALS AMAT

NSPH-55C3 / NISSO TOOL CHEMICAL PUMP / NSE HARA

392261 / CAT DESTROYER GEMINI OZ/ AXCELIS TECHNOLOGIES

853-440231-001 /ASSEMBLY ENCLOSURE UPPER MATCH / LAM RESEARCH CORPORATION

0190-25187 / Daihen RMN-50N6 RF GENERATOR 5KW 2MHZ-13MHZ / AMAT

M25R / MAXIM 25R CHEMICAL PUMP / TREBOR

61-002154-04 / PCB,COMPUCONTROLLER MULTIBUS TERMINAL BRD,SLOT 5,10,11 / NOVELLUS

1222865 / CHUCK ASSY STD DARTBOARD / AXCELIS TECHNOLOGIES

3156114-006 / APEX 3013 RF GENERATOR REV. A, 0920-00139-000 /ADVANCED ENERGY

15-376737-00 /SHWRHD,CONSTANT DENSITY,INEXT RPM /LAM REASEARCH CORP

0010-04637 (3DM S / PIN CERAMIC 300MM PLUS-O RING / APPLIED MATERIALS AMAT

SA8511 / CONTROLLEROZCONTROLLER RE / ASTEX

1076-062 / ASM MIR3000 SUSCEPTOR/302MM/RA2 FEOL / APPLIED MATERIALS AMAT

430037-9011-000 /AXIOLAB5 STAND, BIO-TL,XY STAGE WITH RIGHT HANDLE / ZEISS

310E-H00100-S-NCRB-110 DF 310E PROCESS OXYGEN ANALYZER SENSOR SEMI-0001 SERVOMEX

87-066761-13 / MILAEBO CONTROLLER TRAP ASSY  CTL-3200 / TOKYO ELECTRON TEL

INR-244-196 / COOLING PLATE TEL CT2980-090480-11 / TOKYO ELECTRON TEL

300414128-01 / LIFT ASSY / APPLIED MATERIALS AMAT

823 / TEL CLEAN TRACK MODEL 823 TRANSITION IT / TOKYO ELECTRON TEL

602937-04 / PCB-VMIC SVG PROCESS ANALOG I-O VMIVME 4512 - 333-004512-000 G /VMIC

346030-9003-500 / POWER SUPPLY HIGH VOLTAGE 4 PORT / SPELLMAN

0190-24854 / MKS REV1.8 G4 PLUS 4-PORT UPA 300MM REFL / APPLIED MATERIALS AMAT

0021-21814 / DISK,6 ,ADV 101 PROCESS, SHUTTER / APPLIED MATERIALS AMAT

02-138280-00 / ASSY,GAS DIST, MIXING BOWL / NOVELLUS

D025APS810 /DIAPHRAGM VACUUM PUM AMD 4 / ADIXEN

0040-03608, 0040-03607 / CHAMBER ARM LIFT ASSY TXZ / APPLIED MATERIALS AMAT

PMP03990 / HI PACE 300 TURBO PUMP PFEIFFER VACUUM / PFEIFFER

0240-33231 / KAMAN 854373-006, 6'' SUSCEPTOR CALIBRATION KIT / AMAT

000-7100-12 / ROBOT ORBITRAN / BROOKS AUTOMATION

532R-CNSR-A01 / LASER EMITTER CONTROL IT / MELLES GRIOT

9174-HSMI / 8X12 LOW CURRENT MATRIX CARD 9174-122-04 / KEITHLEY

486DX-33/COMPUTER 200 MB TURBO HDD SPI-230G SYQUEST DRIVE 52-0590-09/KLA TENCOR

BV-R10TF2FM7/2FAN FILTER 200-240V 176W PSL 0.1UM EBARA C-5200-001-0000/PANASONIC

TV 401-301 / TURBOMOLECULAR PUMP / VARIAN

8303099002 / RIGHT THERMAL HEAD ARRAY 26X39 MM / COHU