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。

SGDB-44ADG / DRIVER SERVOMOTOR 200V 4.4KW FOR SGMG / YASKAWA ELECTRIC

23-20937-503, 23-20944-501 / RF MATCH / RFPP RF PLASMA PRODUCTS

0020-51916 / CATHODE LINER, 300MM DPN / APPLIED MATERIALS AMAT

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

AA300EX-083, AA300EX-084 / ROBOT KEYTRAN IV ARMS / ULVAC

ML3475A-ASM / SERVO MOTOR / PARKER

600059-06 / PCB, T/C AMPLIFIER / AG ASSOCIATES

BN9-5015-000 / MIRROR, G1 FOR MPA60 / CANON

0010-19026 / STD PVD DEAGAS CHAMBER QUARTZ VIEWPORT LID/ APPLIED MATERIALS AMAT

00070-2000-000-01 / MEGA_F MOTION SYSTEMS TZ CONTROL IT / APPLIED MATERIALS

0200-00175 / AMAT DOME CERAMIC, POLY DPS CHAMBER/ APPLIED MATERIALS

FI20160-2 / SMARTPOWER PWR SUPPLY, 0920-01110, 200-208V 3PH 20A 50-60HZ / ASTEX

E11104150 / CRYO PURGE CONTROLLER, VIISTA VISION / VARIAN

715-001841-001 / LAM HOUSING, GAP ADJUST / LAM RESEARCH CORPORATION

839-443215-502 / ELECTRODE SILICON ASSY L RES SM HO REV C / LAM RESEARCH CORP

1-A02220-95 / BAFFLE ASSY, EC1,SLOTTED / HITACHI

0200-00531-009 / PUMP PLATE, CVD 300MM TXZ / APPLIED MATERIALS AMAT

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

60560094-01/ PCB, SGRP, GALVO-DRIVER / LUMONICS

XGT300-30-1A-X804 / SLIT-VALVE PRESS 10-6 Pa~atm OPE. PRESSO.45~.6 MPa / SMC

0020-79039 / PLM HOUSING SPINDLE ASSY 300MM IMR / APPLIED MATERIALS AMAT

90-2590 / PCB, GASONICS I-O INTERFACE,  STYLE WITH EXCHANGE / GASONICS

0040-04151 / AMAT BASE, AMPOULE LIFT, LIQ PANEL, TXZ / APPLIED MATERIALS

AXI-IP6-2120 / CONTROLLER JVX 6200 / JVC

2500-1902 / AIR PRODUCTS SCHUMACHER TEOS AMPULE, EMPTY SHOE T713474 RT9409

5001-1015-30-00 / ENDPOINT CONTROLLER MODEL 1015

627A.1TAD----S/XDCR PRESS VAC ISL CV7627A.01TAD 10-100 TORR 1-4VCR-F -15VDC/MKS

0010-05418 / CLEANER FLUID CHAMBER REMOVAL TOOL ASSY / APPLIED MATERIALS

16-348528-00 / PED ASSY, PNL MCA ES C3ALT / NOVELLUS

0090-B0601 / APDU KVR11706 IP RACK UVISION 3HS-18S 3X110 VAC 40AMP / AMAT

799-165832-001/RING SEALING 162 ISO 250 VULCANIZED 706297/LAM RESEARCH CORPORATI

0040-47601 / AC , 300MM ENDURA SL / APPLIED MATERIALS AMAT

3152194-005 / MDX20K LZ MASTER DELTA MAGNETRON DRIVE / ADVANCED ENERGY

S6962 / CONTROLLER 2-AXIS WAFER RESOLVE T 100L / IDC

16-194620-01 / COLLECTOR-EXHAUST REACTION CHAMBER / ASM AMERICA INC

0040-20518 / ADAPTER PVD TRANSPORT / APPLIED MATERIALS AMAT

0100-90353 / PWBA LOGIC, SUPPRESSION / APPLIED MATERIALS AMAT

MDVHX-100B / THROTTLE VALVE, HEATED, VEXTA PH265-02-C32 W/ EXCHANGE / MILLIPORE

E11351930 / FACILITY, WATER TURBO R/S / VARIAN

3006728 / COMPUTER TMS HVM IPC847C COMPL / SIEMENS

42487-00 / 3A14 ACCELERATOR VACUUM CONTROLLER / GENUS INCORPORATED

919-0402S004 / ION PUMP DIODE STYLE / VARIAN

919-0302S004 / NOBLE DIODE ION PUMP / VARIAN

1518150 / PCB ASSY AT4 DATA ACQUISITION / AXCELIS TECHNOLOGIES

OYDK-60-095B-064-065 / ASSEMBLY, PCBS EXT CHEM#02, / TOKYO ELECTRON TEL

601-17060 / M-3 HEAD (10200-090 LASERT / AB LASERS

M2012A / 15V 3/4 HP CVC19 HYDROCARBON OIL / ALCATEL VACUUM PRODUCTS, INC

001-7600-07, 001-1570-97, 001-1984 / MAGNATRAN 5 MTR-5 ROBOT, ARM, PENDANT / BA

859-8140-005 / COTERFORCE RETICLE STAGE AMP MICRASCAN 859-8211-003 / ASML

DS2110-130940-14 / CAP SUS316L / TOKYO ELECTRON TEL

4040345 KVR1658 / UVISION 5 POWER SUPPLY INTERFACE  / APPLIED MATERIALS AMAT

MWD-55LD-01 / AUTOMATCH,13.56 MHZ, 100-220V 50-60HZ, KYOSAN HV-PS4 / ENI

H4-4135 / PRGM. LOGIC CONTROL VEXTRA W/4-2 PHASE DRIVES / ADVANTEST

H4-4137 / PRGM. LOGIC CONTROL VEXTRA / ADVANTEST

0090-06863 / CIOC ECAT ADVANTAGE / APPLIED MATERIAL AMAT

0195-07328 / AC PANEL, CENTURA CENTRIS DPS2 / APPLIED MATERIALS AMAT

EM3506-123-64A / RING LOWER SHEILD 88618-08 / ULVAC TECH

0710100 / PCB VME 101 / VME

E11072750 / ARC FILAMENT CONTROLLER / VARIAN

ARX-X252-SP / ETO, RF GEN 13.56 MHZ WATTMETER PCB ACX-X280/ MKS

PC87927 / OZSYSTEM CONTROLLER CHASSIS ASTEX BACKPLANE ASSEMBLY / MKS

5150CP / TURBO MOLECULAR PUMP / ALCATEL VACUUM PRODUCTS, INC

61-344687-00 / COMPUTER EC1 QNX 4/6 NEXUS MODULE / NOVELLUS SYSTEMS

600W ETC04 PWM-15M / TURBO-MOLECULAR PUMP CONTROLLER MODEL ET600WS / EBARA

2587440-01 / ASSY, SENSING BOAT ROTATION II / ASM AMERICA INC

015-0920-01 / BROOKS PCB RUDY, 1 VACUUM SENSOR, WITH EXCHANGE / IRVINE OPTICAL

GEPH-001X7 / DNS SK-200 POWER CONTROL IT WITH EXCHANGE / DAI NIPPON

IRAI Z-AXIS ROBOT / ASSY HG-KR23 TEL PROZ / TOKYO ELECTRON TEL

11180307-07360E / SPINDLE ASSY FOR KLA ECD SEM / KLA TENCOR

840-0022-422 / NANOSCOPE STAGE  JR CONTROLLER / DIGITAL INSTRUMENTS

COMPUTER NSX-SERIES WHS / COMPUTER PC FOR NSX-SERIES / AUGUST TECHNOLOGY

ES1D10-302586-12 / COVER BELLOWS / TOKYO ELECTRON TEL ES1D10-302586-12

270 ST / SPIN RINSE DRYER SEMITOOL SR 3615-4664 FGS1990 / RHETECH INC

10145595 / SHAFT SOLID SUSCEPTOR SUPPORT QUARTZ XYA-589528-01 / XYCARB CERAMICS

379093 / PCB ASSY TIMING GENERATOR AIT2, SLOT 10, 0053946-000 W/EXCHANGE / KLA

XU-CM7400 / YASKAWA CONTROLLER FOR TRANSFER ROBOT / YASKAWA

0010-01929 / AMAT ASSY PVD RF MATCH, BIASED ELECTRODE BESC / APPLIED MATERIALS

CP / CP CHILL PLATE ASSY SK2000 / DNS DAI NIPPON SCREEN

0195-14769 / PCB, 0195-11146, GENREAL MICRO SYSTEMS V295,PWB 90-2248-030 / AMAT

4090U / POWER SUPPLY MODULE PSME 115VAC 15A / ELECTROGLAS

ES1D05-300061-13 / QUARTZ RING,INSULATOR A7-2 / TOKYO ELECTRON TEL

AS305619-04 / ASSY IQ PUMP I-FACE IT XEF2 PIP / STS

CT5085-412118-12 / FORK, ASSY CHA / TOKYO ELECTRON TEL

AFF-600 / FLAT FINDER - AUTO - UP-DOWN - MACTRONIX / MACTRONIX MACTRONICS

XGT310-30-1A-X446 / INTERGRA VALVE LOAD LOCK SMC / AXCELIS

NT30M 85567 / NT30M CONTROLLER ASSY / LEYBOLD VACUUM PRODUCTS INC

E17267780 REV-A / WAVE GUIDE FOR VARIAN IMPLANTER / VARIAN

1020738 / LAMP LAMP DEGAS LAMP 1 / ULVAC TECH

YM-03-1039TAOV / POWER SUPPLY, PLVPS / NEMIC-LAMBDA

ES2L80-001146-11 / MATCHER LIFTER MAT / TAIYO YUDEN

853-013541-002 / ASSY THROTTLE VALVE, HTD ; MODEL PH265-02 / MILLIPORE

0100-00496 / POWER CONTROL ASSEMBLY / APPLIED MATERIALS AMAT

47071B / SWITCH MATRIX / AVAGO TECHNOLOGIES

0100-01439 / FDT PCB LOOP CONTROLLER CE LCVME-10X / APPLIED MATERIALS AMAT

37-222-002 / COOLANT PLATE REV F 903E / NOVELLUS

0020-49785 / FACEPLATE,APF,300MM PRODUCER SE / APPLIED MATERIALS AMAT

853-065312-104 / LAM DRY ETCH ENCLOSURE, HELIUM/RF PRE-BUILT / LAM

E19009250 / FEED THRU ROTARY RIGHT HAND / VARIAN E19009250

4S288-271 / QI QUEENSGATE INSTRUMENTS POSITION SENSOR IT NS2300/D / NIKON

C108456001 / PCB ASSY X CORRECTION INCLUDES PCB E15001560 / VARIAN

LPD- / LPD#2 OVERHEAT DETECTION / RKC INSTRUMENT INC

0010-07331 / ASSY, LLA SWLL LIFT HOOP, 200MM, CENTURA / APPLIED MATERIALS AMAT

919-0402S004 / VARIAN ION PUMP DIODE STYLE / VARIAN

E11104160 / VARIAN ASSY ON BOARD CRYO PURGE CONTROLLER / VARIAN

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

0342-1050-0001 / PCB ASSY HORIZONTAL SCAN GENERATOR NV42XX NV 6200 / EATON

853-021917-004 / ASSY,HTR PADDLE/FDTHRU,ISO,4 / LAM RESEARCH CORPORATION

0040-13378 / WING,RT,ENHANCED HP / APPLIED MATERIALS AMAT

AWG610 / OSCILLOSCOPE SCOPE AND PROBES / TEKTRONIX, INCJ3-057110-A / MAGNETIC FUILD SEAL IT / RIGAKU

9700-2987-04 / LOCK-PORT ASSY, ASYST / ASYST TECHNOLOGIES

715-042721-866 / HI FLOW LINER CHAMBER LAM 2300 / LAM RESEARCH

170013020 / PLATE GND SCAN SUPPRESSOR UPSTREAM SI COATED / AXCELIS TECHNOLOGIES

E11054503 / GAS  POWER DISTRIBUTION LEA INTERNATIONAL A70-00-5026 / VARIAN

130400604 / SCAN-HEAD, GALVO RS.S.10-3 532M HEAD / ROFIN-SINAR

MOGCR738-5D-080 / CHUCK TABLE / DISCO

PY0A300W4PW1A00 / DRVR SERVO MOTOR FOR 7.5KW MOTOR 200VAC, PY / SANYO DENKI

6500-T3-F03-D12-K-P1-U1 / INTEGRATED FLOW CONTROLLER, CON: 3/8" / ENTEGRIS

1-A04824-01 / GRODED ELECTRODE, XT / TSM HITACHI

710-655651-20 / CORNERTURN 3 PCB / KLA-TENCOR

TX20-9V00-1AA-4AS/RF GENERATOR TX SERIES, 2000W, 1126-700-01/ADTEC PLASMA TECH

4600D-20250 / POWER TEN POWER SUPPLY 250 AMPS 20 VOLTS 190-253 VAC 3 PH / VARIAN

552547400 / CHRISTENSEN LSX18T-A-L 18" TOUCHSCREEN MONITOR / LAM RESEARCH

10-000-0392/ IMTEC ACCUBATH QZ-A2002-51 SOLVENT TANK SCP

0190-34645 / AMAT DC POWER SUPPLY 20KW 480VAC,AE 3152411-264 / APPLIED MATERIALS

0010-05965 / 0010-05965R EPO FLAT ESC 200MM 0040-00876 0040-05592 / AMAT

3157501-000 / R GEN. PE1000 40KHZ ISH / ADVANCED ENERGY

0010-44818/SYSTEM MODULE ASSY H2 LEAK DETECTOR EPI 300MM/APPLIED MATERIALS AMAT

02-113639-00 / ASSY,MOD CNTRL,P166/64 / NOVELLUS

1850A-12-5007 / WAFER,RTD,300MM,SENS,350DEGC / KLA TENCOR