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。

27-00066-00 / POWER SUPPLY 24V(50-000002-00D) RO ASSOCIATES PS551 E / NOVELLUS

17175190 / ADAPTER RING DISK FARADAY / AXCELIS 17175190 EATON 17175190

16-029875-00/15-029856-00 / EVAPORATOR BODY, CVD TIN / NOVELLUS

0200-06073 / RING DEPOSITION CU COIL EXTENDED TRENCH DESC 300MM / AMAT

127AA-00100E / BARATRON PRESSURE TRANSDUCER TYPE 127 / MKS

0021-98736 / COVER SHIELD CHAMBER ECHAUST POCKET METAL ALD 300MM / AMAT

3870-01352 / VALVE H VAC RTANG 1-1-2IN CONFLAT 2-3-4 FLNG / APPLIED MATERIALS

E17011570 / SPOOL / VARIAN

2L05-250034-11 / RING, SHIELD TOP-HS(PH-TU)V2 / TOKYO ELECTRON TEL

0010-00750 / AMAT BOLT DOWN COVER ASSEMBLY / APPLIED MATERIALS

A-14874 / PCB 332 CONTROLLER PCA METAPULSE A-14873 / RUDOLPH TECHNOLOGY

0020-24959 / SHIELD, BOWL AL / APPLIED MATERIALS AMAT

975784-001 / PC BOARD SW PANEL / WATKINS JOHNSON WJ

AT-GS950 16 / WEBSMART SWITCH 16 PORT GIGABIT 2SFP COMBO PORTS / ALLIED TELESIS

ML1 240-10-70 / GAS MANIFOLD ASSEMBLY / AIR LIQUIDE ELECTRONICS US LP

507008615 / AC/DC POWER SUPPLY FOR RF GENERATOR / TEGAL

FTI-2301D T1-D3R/TMP POWER IT200-240V 50-60HZ 1.3K VA 3280-000025-V1/SHIMADZU

SER.456.40141 / 8 INCH WAFER TABLE CC NOTCH SISIC / ASML

00-681487-00 / VARIAN 00-681487-00 KOOLTRONIC KDP529-101 A /KOOLTRONIC

F698112000(LOT OF 6) / FILTER CARTIRIDGE / GRAVER TECHNOLOGIES

PIP-512B / VIDEO DIGITIZER PCB / MATROX

PA0002A / PCB, MOTOR CN, I/O DISTRIBUTOR / TOKYO SEIMITSU

02-034310-00 / NOVELLUS ASSY, MODULE CONTROLLER P100 / NOVELLUS SYSTEMS INC

0100-40875 / PCB SUPPRESSION LOGIC 0120-91414 0120-91415 / APPLIED MATERIALS AMA

625A-14375 / BARATRON PRESSURE TRANSDUCER 10TORR RT ANG KF16 / MKS

0150-09924 /CABLE ASSY, DISTRIBUTION, 5000 MK II-XT /APPLIED MATERIALS AMAT

E15005870 / ANALYZER MAGNET POLARITY SWITCH INTERLOCK PCB ASSY / VARIAN

716-080139-012 / RING EDGE BOTTOM WRAP REV D / LAM RESEARCH CORPORATION

716-080139-032 / RING EDGE BOTTOM WRAP REV A / LAM RESEARCH CORPORATION

9820052-05 / PCB VME ETHERNET CELL CONTROLLER E1 9850019-03 / MICRODYNE

MAX2000, 9988133, 10-2030-01 / CONTROL SERVO 3 AXIS AGILE 30117 / ANALOG DEVICES

12044-PA44-0003 F12-60436 / GATE VALVE VACUUM GATE VALVE / VAT

WWS550 / CORDLESS BARCODE SCANNER / WASP

342-0908-0001 / PCB ASSEMBLY SOURCE TERM DATA LINK NV4200 NV6200 / AXCELIS TECH

4G-500-6-NA CREST TRU-SWEEP GENESIS ULTRASONIC GENERATOR 120V 8 AMP 60HZ 1PH

ES3D10-351122-11 / BASE, BTM-L P-TRAP L EXH SP / TOKYO ELECTRON TEL

0010-13445 / MONITOR(STAND-ALONE) / APPLIED MATERIALS AMAT

1036641 / PCB MINI COM K-524 / ULVAC TECH

MDS1106-TW01 / TFT LCD THROUGH THE WALL MONITOR / SEMICAT

H1P2SLSM / UPRIGHT STAND / PRIOR

910402-001 / TC 486 INPUT CARD / WATKINS JOHNSON WJ

1482-2187 / LINE-HEATED / SCHUMACHER

2-39-39335 / AC SERVO MOTOR TAMAGAWA SEIKI TS3510N34E13 / DNS DAI NIPPON SCREEN

709544, 716991 /NSX-105 AX1 POWER DISTRIBUTION BRD/AUGUST TECHNOLOGY NOW RUDOLPH

230312V02 / LEYBOLD CTR, CERAVAC, 230312V02 / LEYBOLD

716-040737-431 / R,CPLG,QTZ,BIAS PU,W-O FL,300MM / LAM RESEARCH

BMR-021209X04 / 16M PC PIN BLF-022388 PCB / ADVANTEST

192140 / SCHUMACHER POWER SUPPLY, VG6001 PSU, 100-240VAC VERSUM

XI120-Q / X-CITE SERIES 120Q FLUORESCENCE ILLUMINATOR / LUMEN DYNAMICS

AB1F0023EH12K3 / FILTER-WETTED 0.2M SUPER CHEMINERT / PALL TRINCOR

88004820-1 / CARTRIDGE DRIVE 20MB, 88004820-1 / IBM CORP

ABLM-133-1 / R PIN LIFT ASSY CHAMBER 662000-1004 / MDC VACUUM PRODUCT

716-080138-035-A / QUARTZ RING, EDGE, TOP, WRAP / LAM RESEARCH CORPORATION

716-080138-015-E / QUARTZ RING EDGE TOP WRAP / LAM RESEARCH CORPORATION

716-080138-034-A / QUARTZ RING EDGE TOP WRAP / LAM RESEARCH CORPORATION

0190-02557 / HEATER JACKET, LOWER VALVE ELMNT, TXZ CH / APPLIED MATERIALS AMAT

91-01749A / THERMALLY CONTROLLED FIRE POLISHED QTZ,91-01749A / WEST COAST QUARTZ

716-11623-001 / RING CLAMP LOWER ELECTRODE REV / LAM RESEARCH CORPORATION

206824-003 / CABLE / SMS

716-028414-018 / RING FOCUS 8 / LAM RESEARCH CORPORATION

91-00367B / 00009100367A ; CLAMP QUARTZ / TOKYO ELECTRON TEL

253A-1-40-1 / THROTTLE CONTROL VALVE / MKS

PCB-A007-X / PCB BPN-SBF-320 / DISCO

1430-002 / PCB / AXCELIS TECHNOLOGIES

STP-BHO-4306-000 / LASER, DIODE / NIKON

12026170-001 / PCB / AXCELIS TECHNOLOGIES

4022.484.66071/ BXP LENS B CYMER/12X0 GPI/14X0 / ASML

E06858 / SPEED MUDULATOR FOR STEPPER MOTOR / NOVILOIRE

W-11V2B5V11V2B /POWER SUPPLY MODULE ASSY, MT400-11, SYA400S 5 /ADVANTEST

0090-03426/ASSY, HIGH PRECISION REFLECTORS AND BRACKET 300MM /APPLIED

141AA-01000BB / BARATRON 1000 TORR VACCUM SWITCH 24 VDC 0-500 TORR / MKS

34894 / DIA-FLOW DIAPHRAGM VALVE / ITT TECH

W-5V3V5V3V5V / POWER SUPPLY MODULE ASSY, SYA400S 5, MT400-3.3 /ADVANTEST

97847559 / AC-DC CONVERTER, COLUMN CONTROL,LCD815-200,40847500,97847500 /SCHLUMB

0010-09656 / PEDESTAL ASSY OX-MLR-NIT 200MM NOTCH / APPLIED MATERIALS AMAT

5-000010 /FILTER 5 MICRON 698112, QMC 5U 20-AM SIL UC /COOKSON ELEC

0100-77018 / PCB-ROBOT ASSY / APPLIED MATERIALS AMAT

2-F3-D3474 / SPIN RING,COATER CUP ASSY,150MM / DNS DAI NIPPON SCREEN

0100-00011 / PCB DRIVER CHOPPER AMT 0100000011 / APPLIED MATERIALS AMAT

0240-70922 / KIT, HARDWARE HP RETRO SPARE SCREWS / APPLIED MATERIALS AMAT

9700-2839-01 / MOTOR-TILT/ROTATION ASSY / ASYST TECHNOLOGIES

810-30749-001 / REV PCB BOARD / LAM RESEARCH CORPORATION

950-739-00 / TERMINATOR BOARD / TERADYNE

9011103/MODEL 7690 MATERIAL HANDLER CONTROL 120V 50-60HZ/BRUCE INDUSTRIAL CNTRL

UMPLANFI 100X / OBJECTIVE 100X 0.90 BD AIT I / OLYMPUS AMERICA INC

716-801451-019 /BAFFLE CHAMBER 2300, MW STRIPPER /LAM RESEARCH CORP

809-470484204A / PIGTAIL-HBR / AIR PRODUCTS

03-006402D01 / BOARD FORMING GAS / ASM AMERICA INC

0020-42297 / PLATE BACK FILTER MW REMOTE PLASMA / APPLIED MATERIALS

0021-09552 / PLGER,THROTTLE,5 PHASE, DPS / APPLIED MATERIALS AMAT

0660-01851() / CARD ANALOG I-O DNET MODULE / APPLIED MATERIALS AMAT

66-PE-3 8 NSF /IMPERIAL POLY-HO, POLYETHYLENE TUBING, EXCLELON, TEMP 175 DEGREE

F5189001 /APERTURE,BIAS,1021534-012 /VARIAN

0100-90269 / PWB ASSY GRIPPER INTER / APPLIED MATERIALS AMAT

OB-2102CB / MAIN BOARDS W/ 512MB DDR DRAM / ADVANTECH

1008 / MOTOR, MGK-3564K024B-K312, MTR 38-1-246:1, HEDL-5540A14 ENCODER / EVG

1740681 / ELECTRODE-EXTRACTION / EATON

FLHF050-09M3F-PW300 / FILTER, HF/POLY FILTERN/ PALL

3870-01811 / VALVE BLOCK DIAPH. 3WAY 1-4VCR-M-F-F NC- / APPLIED MATERIALS AMAT

17235720 / NV ARC CHAMBER MO ELS-VAE / AXCELIS TECHNOLOGIES

305706-001 / CONTROLLER - TEMP / FSI

0040-01618() / MANIFOLD, INPUT, 200MM PRODUCER / APPLIED MATERIALS AMAT

A19497 /PCB ASSY HEIGHT ARRAY DETECTOR / UTI INVENTORY MANAGEMENT SOLUTIONS

SEC-7440M / MFC, 300SCCM, GAS N2 / HORIBA STEC

0150-02107 / CABLE ASSY, PWR WIRE CLR, CH C/D, LOC B / APPLIED MATERIALS AMAT

MCS2600-4AT-UC / VPA-1987 POWER AMP, ENI, 120VAC, 60HZ, 15.00AMP 08-89 / VERTEQ

275 00J / CONVECTRON GAUGE 275 THERMO 01-790-070-5132 / GRANVILLE-PHILLIPS

0200-18078 / COLLAR,200MM SNNF,ULTIMA / APPLIED MATERIALS AMAT

2-450-004 / TRANSLATOR-M400 RS-485 I/O / IDI INTEGRATED DESIGNS INC

810-001317-001 / PCB A-D CONVERTER REVK / APPLIED MICRO TECHNOLOGY

0150-21118 / CABLE ASSY M/F PUMP CONTROL INTCNCT--10 / APPLIED MATERIALS AMAT

RR-18-180 / MINI MOTOR, ASSY 11 / ROBOHAND

21016400052 / SCAN ROTATION / APPLIED MATERIALS AMAT

71445 / SHUTTER LIGHT SOURCE, 1.4-IN 71445 / ORIEL INSTRUMENTS

02-00272-00 / PCB BOARD, TEMP LIMITS BOARD, 27-00140-00 / NOVELLUS

D4228A / HP VECTRA XM PENTIUM CPU KEYBOARD LINEMASTER 78SN1 FOOT SWITCH / HP

1101760 / VALVE-2 WAY NOM 3 WAY / FURON

0140-77016 / CABLE - RESOLVER HEAD / APPLIED MATERIALS AMAT

114984-004 /MOTHERBOARD LOGIC PCB FAB 114983-001 /ELECTROGLAS

15-306819-00 / SHIELD RING CERAMIC / NOVELLUS

839-031054-003 / RTNR, IV WDO, CAPTIVE HDW / LAM RESEARCH

TYPE B S FORM 341 / NATIONAL ELECTRIC BLOWER, POLE2, 0.2KW, 200V, 50-60HZ, 3PH

0200-08030 / INSULATOR 1.480 WIDER TWAS / APPLIED MATERIALS AMAT

7999000362 / PCB, CAL-DIAG LB, DEFT 799000362-04 / SCHLUMBERGER

17145010 / STRAP / AXCELIS TECHNOLOGIES

0050-36463 / LINE,EXHAUST,CHAMBER,CENTURA / APPLIED MATERIALS AMAT

DS2187-340203-11 / 45HEATER,3/8- #2187-340203-11 /TOKYO ELECTRON TEL

DS2187-340206-12 / 45HEATER,3/8- #2187-340206-11 / TOKYO ELECTRON TEL

2-39-26261 / PROGRAMMABLE CONTROLLER / DNS DAI NIPPON SCREEN

715-250582-001 / RING-LOWER WAFER CLAMP 200MM CLAMP RING ASSY / LAM

14899C / PCB CPU BOARD, 14899C-501-L / SEMITOOL