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。

0242-76611 / KIT, ELEC, PER HTESC PVE CHAMBER, ENDURA / APPLIED MATERIALS AMAT

8020-0101-04 / MEASURMENT BOARD KIT, 8020-0101-04 / ZYGO

VME162PA252SE / PCB VME BOARD SLOT 01 84-W8627F01B / MOTOROLA

X3500-64020 / 304 FS TURBOMOLECULAR PUMP / AGILENT TECHNOLOGIES

593-21329 / MONGOOSE 3 01128-80003 SMG3 64SB NH2 BACKPLANE PCB / MICRON

0010-15262-001 / AMAT 200/300 MM UPPER RING ASSY, 10152300 / APPLIED MATERIALS

T-39-08583 / SANYO DENKI SERVO AMPLIFIER 506 / SCREEN SPE USA

E11128510 / ASSY, BEAM DUMP 33 OPTION / VARIAN / APPLIED MATERIALS E11128510

95-0296 / T-1000 CONTROLLER BOARD 95-0296 T1000 / PVA TEPLA

IC780-802458 / LIQUID FLOW CONTROLLER, 500 ML / CELERITY

4014580 MCG 23MBEG2448 / MOTOR ASSY BRUSH 10-1 GEARHEAD MCG MOTO / PARKER

Z1150864 / ENDEFFECTOR, COA/DEV / EVG-EV GROUP

1503060 / EATON 1503060 PCB ASSY CONTROLLER REMOTE / AXCELIS TECHNOLOGIES

500-22560-000 / PCB PMAC ACC14-V ASSY DELTA TAU 602239-102 / KLA TENCOR

122610-002 / PCB BOARD, SECS COMMICATIONS BOARD / THERMCO

140590-001 / PCB BOARD, SECS COMMICATION CARD / THERMCO

2212012-000 / PCB BOARD, ASSY 2212012-000, SUB ASSY 2212011-0001 / TEXAS INSTRU.

E11091420 / VACUUM GAGE CONTROLLER / VARIAN

BGR-023351 / MATCH BOARD / ADVANTEST

0020-39001 / PLGER SHAFT THROTTLE VALVE DPS-A3/ APPLIED MATERIALS

9698972M008 / VARIAN TV-301 TURBO PUMP CONTROLLER / AGILENT TECHNOLOGIES

4250013162010 / WELDMENT CHAMBER LINER 368 / AXIS

WUG-022NK13D2URT1-WRST-026X58T1-WTM-02P-40 / WAVEGUIDE ASSY / TEL TOKYO ELECTRON

02-150749-00 / ATC ASSY /NOVELLUS

13865 / VALVE 3 " HIGH PURITY BRASS W/US PURGE GB3125PVLR / CARTEN

435401-01 / MOTORIZED FOCUSING WITH COLUMN / ZEISS

1483-0400A / MASS FLOW CONTROLLER, 70-80 PSI, 50-60 HZ / SCHUMACHER

7900143 / BRUCE SERIES 7900 ATOMSPHERIC TUBE /BRUCE TECHNOLOGIES

B718-30-260 / TURBO PUMP CABLE DEF9KSBC / BOC EDWARDS

2331459-00 / INFO SYSTEM FRONT PANEL 4 CH, ASSY CPU BOARD 7002-200-0009 / LAM

USA4-22-35 / MULTI-AXIS IVERSAL SERVO AMPLIFIER(951827E) / BERKELEY PROCESS

MOHLP001--B / MICROSOPE IT - LOW AND HIGH MAG - DFD651 / DISCO

E11054720 / CONTROL CHASSIS / VARIAN

3750-01095 / CONTROL TER MICROWAVE RPS FOR SMA-15A CMC-10A5 DAIHEN/ AMAT

A48362 /LF MATCHING IT /TRIKON/SPTS TECHNOLOGIES

810-29427 / UPPER 1 SHIELD RING / LAM RESEARCH CORPORATION

842-331033-001 /KIT, LINER CHAMBER / LAM RESEARCH

0040-78768 / TOOL GNG EDGE RING 300MM TXZ HEATER / APPLIED MATERIALS AMAT

157033 / D00466 BELLOWS ASSY / TRIKON/SPTS TECHNOLOGIES

577009-4311-000 ASSY / LASSEMBLEY WITH 577009-4186-000 /LASOS LASERTECHNIK

1001630-00C / CRIB PN 01GK804 ; EMP PN 1001620-00 DDCF - PS BOARD REV C / MOSAID

PD1217-L-CE / ELECTROSTATIC VOLTMETER ASSY PD1217 / TREK

CAB1B0307 / CABLE ASSY MOTOR VERTICAL / INMOTION TECHNOLGIES AB / SMS

0010-00183 MOTOR ASSY / 3.4 STEPPER MOTOR ASSY WITH 0030-00059 / AMAT

BG4-6712 / CANON I3 FT1 2ND CONDENSER LENS / CANON

58900118 / TILT TRAY, 8IN FOR MATTSON RTP 3000 / MATTSON

740-611337-000 / BACKPLANE ASSY / KLA TENCOR

METAL ETCH TRAP /METAL ETCH PROCESS TRAP 3 LBS. AICL3 STAINLESS STEEL VITON /MKS

3D10-202405-V1 TEL TELIUS INSULATOR LOWER T32-R6-BL-NC / TOKYO ELECTRON TEL

0100-20069 / WAFER ORIENTER BOARD / APPLIED MATERIALS AMAT

LS-421E-1001 / GB4-P ROBOT INTERFACE PREALIGNER LS-421-2050 2061 860213003 / GEN

FBPCB-0233 / PCB - CPU 486-66M - 8M / DISCO

715-810653-002 / END EFFECTOR 2300 VTM ROBOT SCARA ARM /LAM RESEARCH CORPORATION

0340X-MH24-API / WAFER TRANSFER VACUUM VALVE ACTUATOR / VAT

271-5203 / PCB BOARD, 22715202 / AO SMITH CORP

IV-2410AV-03 / INJ VALVE,IV-LF-COMBO-02 LIQ TDMAT, FLOW .01G WITH EXCH / HORIBA

ST800-CC50-M2-QTZ /RF AMPLIFIER /VERTEQ

AES-0285 / PCB ASSY IR DETECTOR AES-0278  0279 W/ QS-100NP-MP / MOTOROLA

NGB012000 / EDWARDS A/C PUMP POWER  ASSEMBLY 208V 3PH 60HZ / EDWARDS VACUUM

73-30117G / WDO, GAS INJ FACE SEAL NSG W CBORES / WEST COAST QUARTZ

0050-06845 / WELDMENT, HE FINAL VALVE, PARALLEL EPLIS / APPLIED MATERIALS AMAT

MA-50613 / 6 IN CLAMP RING HTHU / APPLIED MATERIALS AMAT

CACR-02-TEIK / SERVOPACK 0-230VAC 3 PHASE 1.22A / TOKYO ELECTRON TEL

E22000033 VARAIN ASSY, SCANMASTER II POWER SUPPLY BIC 25520302 / BROOKHAVEN BIC

GEBH-001X2/ HEATER CONTROLLER BAKE MAX 8 HP SK200 2-VC-27628 /DAI NIPPON SCREEN

715-064244-003 / INDEX LOADER ASSY LAM 2300 FLEX EX / LAM RESEARCH CORPORATION

9162-122-04C / PCB 9162 PAU IMTR2 IPD FRD515S1 ANALOGIC ADC4110 / KEITHLEY

0040-52760 / LIFT TO CATHODE ADAPTER / APPLIED MATERIALS AMAT / VEXTA

1D10-101475-21 / PLATE. BAFFLE, 0-15, / TOKYO ELECTRON TEL

0021-09982 / PLATE, GAS DIST. HEWEB 150MM /AMAT

30613210100 / POWER SUPPLY H40554, OPAL WITH CORE EXCHANGE /LAMBDA

01-81911-00 / 8100 N ION TC CONTROLLER / APPLIED MATERIALS AMAT 01-81911-00

1-828272-C/BUFFER, LID, SET/HITACHI HIGH-TECH AMERICA, INC

2640503-01 / RETRO Z2-AXIS ROBOT WHR ECO A6723 KIT / ASML

0200-02421 / ISOLATOR, LID TOP CERAMIC TXZ 300MM / METRON

0021-21443 / SHIM, CLAMPING, GAMMA CU, TITANIUM / APPLIED MATERIALS AMAT

0190-08556() / 8 IN COMPPOSITE RETAINING RING / APPLIED MATERIALS AMAT

SB-75 / ELECTRIC BLOWER 200-220V WITH COIL ASSY 0.25KW 2 POLES / SHOWA DENKI

1196160 / ASSY DISK INDEX SENSOR ULE 90 / AXCELIS TECHNOLOGIES

0021-26391 / BLOCKER, 300MM HARP, SACVD PRODUCER / APPLIED MATERIALS AMAT

SCU-H1000CV / TURBO MOLECULAR PUMP CONTROL IT / SEIKO SEIKI

HPC840 / POWER SUPPLY, LASER DIODES ROFIN 120109340 / PMB ELECTRONIK

026-742401 / HDY115C6-88S1 6000RPM / PARKER EMD HAUSER

950-845-01 / PCB, AD845, A/F DATABUS FANOUT / TERADYNE

NGR883000 / A/C PUMP POWER  ASSEMBLY / EDWARDS VACUUM

102615-001 / ABES III LOGIC BACKPLANE / MICRO CONTROL COMPANY

HF-KPO53G7K /AC SERVO MOTOR WITH ARM ASSEMBLY/MITSUBISHI

030-001437 / 200 MM BELLOWS COVER TELDT NXEDGE / TOKYO ELECTRON TEL

0041-31938 / SEAL PLATE 300MM L DOOR SLIT VALVE 210042 / APPLIED MATERIALS AMAT

S11100123P / ASSY ELBOW HEATER W TRAPCOVER SEMIGEAR FR002 / AMAT

DS2110-339502-11 / PIPING 100A SS316 LH ASDP BELLOW / TOKYO ELECTRON TEL

3ROT096190 / TUBE FLEXIBLE GAS REACTOR 2 / KOKUSAI SEMICONDUCTOR EQUIPMENT

715-330987-001 / R GAS RING W/BSR / LAM RESEARCH

0240-08239 / RETROFIT KIT CHANNEL SCREEN / APPLIED MATERIALS AMAT

KOMATSU MODEL CHE-34-2 ABBGA0003000, C5014-00629-1 / KOMATSU ELECTRONICS

SGDM-08ADA / SERVOPACK MOTOR DRIVER 5J6995-1 / YASKAWA ELECTRIC

0010-30057 / LOWER LINER, CATHODE, MXP / APPLIED MATERIALS AMAT

RP-300-2MX-CM03A7 / GENERATOR, RF, RP 233106885 / HITACHI

422-0319 / THROTTLE GATE-VALVE HIGH VACUUM 3X10 ISO G5023 / VARIAN

0021-09983 / PLATE, GAS DIST. HEWEB 200MM / APPLIED MATERIALS AMAT

0100-00018 / SYSTEM ELECT MOTHER BD / APPLIED MATERIALS AMAT

950-963-04 / MTO MOTHERBOARD PCB / TERADYNE

3M10-204745-11 / QUARTZ RING LINER BASE / TOKYO ELECTRON TEL

MSK040C-0450-NN-M1-UG0-NNNN / 3-PH SYNC. PM-MOT. MNR 911320143 AC 600V / REXROTH

0041-79433 / FACEPLATE TEOS HIGH DEP RATE 300 MM PRODUCER SA / AMAT

0200-09911 / COVER,QUARTZ,8"",STEPPED,LIFT 2 NOTCHED,E / AMAT

0022-17726 / EDGE RING, ENP, DZ WC PEDESTAL, SICONI / APPLIED MATERIALS AMAT

17063430 / /VALVE- NUPRO GAS  4 PORT / EATON

5013-000356-11 / PLATE COOLING LTF12-COLARM-T6V-C2 / TOKYO ELECTRON TEL

ENDEFFECTORCERAMICES31 / CERAMIC END EFFECTOR KLA ES31 / KLA TENCOR

ZIATECH 5510E / COMPACTPCI MFG ASSY BD CPU 200MHZ 128M PMC FLASH / LAM 122833400

7100-5168-08 / PCB RMS ANALOG 4108 / AG ASSOCIATES

0040-20321 / HOOP LIFT 8 WELDMENT / AMAT

A90-005-02 / PCB, CONTROLLER BOARD AURA 1000 / GASONICS

853-004349-001 / ENCL RLY DUAL TCU / LAM RESEARCH CORPORATION

0021-84173 / COVER RING STD AL / APPLIED MATERIALS AMAT

0242-09104 / KIT, HTR, BASIC FC, WXZ / APPLIED MATERIALS AMAT

716-028123-002 / RING FILLER,CERAMIC / LAM RESEARCH

949-9452 / VACUUBRAND DIAPHRAGM VACUUM PUMP / VARIAN

905434-001 / ASSY TORRODIAL ORFICE, KN-SP SP-3475 / WATKINS JOHNSON

629D.1L1B / BARATRON CAPACITANCE MANOMETER 0.1 TORR / MKS

170154687() / PLATE GROD ELECT LEFT SIDE GRAPH / AXCELIS TECHNOLOGIES

1083-648-01 / HEATER-SCE1 INTERCONNECT ZE510 / ASM AMERICA

5517B / HP AGILENT LASER HEAD / AGILENT TECHNOLGIES

001-1570-97/ ARMS BROOKS ROBOT FROG LEGS 001-5867-01 / BROOKS AUTOMATION

0190-12012 / ETERNA OZ8930AMT7142G1 208V 56A, 50-60HZ 0180-02094 / AMAT

853-800083-115 / ASSY, ENCLOSURE, AC / LAM RESEARCH

651CD2S1N / 600 SERIES PRESSURE CONTROLLER / MKS

2875152-01 / WATER COOLED TRAP RC2 / ASM AMERICA INC