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。

0020-24167 / CLAMP, SHIELD, INNER, 300MM SIP ENCORE SE-083669 / AMAT

99-106-001 / PCB AUTOTE SLUG ATS-1 415 421 515 / TEGAL

2-816006-A / HEATER FOR M-308ATE / HITACHI

0020-30722 / FINGER REMOVABLE AL200MM / APPLIED MATERIALS AMAT

3161950 / PCB BOARD, SYSTEM MICROCONT. ASSY, 2859302 / BTU ENGINEERING - BRUCE

B08-l1-0-0-C4-0-DLS-AJJC200 / CONTROLLER, RS422, 0-600C / EUROTHERM

E15000320 / PCB ELEVATOR CONTROL ASSY / VARIAN

16-455989-00 / DUCT, EXHAUST, UV ENCL FACIL, ALUM / NOVELLUS

VE-1120X / SHIELD-DIVIDER TARGET PLATE VENZON VE-11 / VENZON ENGINEERING

0020-32312 / DOOR, SLIT VALVE, S / APPLIED MATERIALS AMAT

0150-08835 003 / CABLE ASSY,SLIT VALVE INTERFACE,VANTAGE / AMAT

559-209 / OBJEKTIV LL 20X0.4 LENS / LEITZ WETZLAR

EPC-1-0 2905 /PCB BOARD, GAS CABINET REV 2 /TRION TECHNOLOGY

0021-22583 / BUSHING RIGID COIL SUPPORT / APPLIED MATERIALS AMAT

0190-08556 / RETAINING RING, 8IN. PPS - SST W - OUT GROOV / AMAT

0015-76144 / COUPLING, MODIFIED, SHUTTER, 300MM, PVD / APPLIED MATERIALS AMAT

IZS41-340-04LB-X356 / ONIZER, 24VDC, 7KV, 480MA, 0.5 MPA MAX, / SMC

1103591 / TEFLON 3-WAY PNEUMATIC DIAPHRAGM VALVE / FURON

SIG.MONITOR / SIGNAL MONITOR 99-11948-01 GAS PNL ANNCIATOR / SYSTEMS CHEMISTRY

0140-10284 / H/A, GAS DIST TO LOCKOUT BD/W CUST INTFC / APPLIED MATERIALS AMAT

BM24480 IO / DRIVER,RESET,PCB / BROOKS AUTOMATION

BM24480 / IO DRIVER,RESET,PCB / BROOKS AUTOMATION

3304MR / PHOTOHELIC PRESSURE SWITCH/GAUGE SERIES 3000MR 25PSIG / DWYER

ERJ-1GNF1432C /RESISTOR 0201 AUTO AEC-Q200 THICK

0040-20727 / TUBE, FLANGED HEATER RF / APPLIED MATERIALS AMAT

0150-09840 / CABLE ASSY LAMP MODULE / APPLIED MATERIALS AMAT

XLD-50-X985 / VACUUM ANGLE ISOLATION VALVE / SMC

BIR-014284 / PCB AG FC CARD PIR-E142B4BB 0054-3249 F805B-BEB3 / ADVANTEST

103250011 / GAUGE, PIRANI, 325 MODUCELL / HPS DIV,MKS INSTRUMENTS INC

103H8222-5111 / MOTOR, Y1 / SANYO DENKI

15-401955-00 / BAFFLE, RUGHING, IALD / NOVELLUS

73-690-0313 / SWITCH MO PWR SUPPLY MVP MDL MP1-3D-1E-1L-1L-03 / ARTESYN TECH

5044-000281-11 / BUFFER ADD ON BOARD / TOKYO ELECTRON TEL

810-49928() / CONTROLLER, OVER TEMP, 240 VAC, 60HX, 10 VA, LV SERIES

9000467 / PCB, BOATLOAD CONTROL, PANEL, BRUCE 7600 / BTU ENGINEERING

DCM-1040 / CNC MOTION CONTROL BOARD / GALIL

0015-09055 / BELLOWS ASSY SUSCEPTOR HOLLOW / APPLIED MATERIALS AMAT

151070-001 / IVERSAL FIRING CARD / THERMCO

0021-09098 / RING SEPARATOR MXP LINER / APPLIED MATERIALS AMAT

AS-304-2() / VGA STA. DOUBLER FOR VGA AND SVGA, AUTO. KEYB, MOITOR / SSI

20A7-002NUS / LAPTOP / LENOVO

LMP-12751() / ARC LAMP, NEC / DIRECTED LIGHT INC

AB1NIZ3EH4 / 0.1 MICRON POSIDYNE FILTER CARTRIDGE / PALL

853-023620-001 / HARNESS-CHMBR SGNL RETROFIT / LAM RESEARCH

0200-03265/ 6 INCH SHADOW RING/ APPLIED MATERIALS AMAT

BLM03AX241SN1D(LOT/105,000)/FERRITE BEAD 240 OHM 0201 SURFACE MOT

678-009953-200 / HEATER CARTRIDGE 200 WATT / LAM RESEARCH

020-654-058-000 / I-LINE FILTER MODULE / APPLIED MATERIALS

SSUPBO 16 / PILLOW BLOCK BRG / THOMSON

SSUPBO 16 / PILLOW BLOCK BRG / THOMSON

36-0050 / S-M INTERFACE BOARD/ PROMETRIX

PC2110701-00 / PCI DIFFERENTIAL SCSI CONTROLLER 68 PIN WIDE / QLOGIC

234038-002 / MOTOR STIRRER W/CONT 24V 100W / LINDE ELECTRONICS

FDS15-50 / POWER SUPPLY T5365P 15V50A / ADVANTEST

15-00729-00 / CLAMP,FLAT / NOVELLUS

3386-002597-11 / CABLE 10 CHILLER I F / TOKYO ELECTRON TEL

0021-36302 / BLOCKER, PERF, SILOX 8 DXZ, MICROWAVE / APPLIED MATERIALS AMAT

715-510345-001 / TL, EXT, ALIGN, VCE, ALLI / LAM RESEARCH

566-5504 / PCB, CPU / HITACHI

566-5509 / PCB, DEF-CNHR / HITACHI

110109-02 /CLAMP,CUSHION,ATM,AVP /AVIZA TECHNOLOGY

EKS4017-UP100-24W/ VEXTA 5 PHASE DRIVER WITH PS OUT24V 4. / ORIENTAL MOTOR

0100-A3571 / SWIFT IMAGE PROCESSING ASSY BOARD / APPLIED MATERIALS AMAT

715-042856-004 / DISK, CALIBRATION, 8" / LAM

103H5333-05XE42 / STEPPER MOTOR 2.6A 1.2DEG/STEP / STEPSYN

93-1731(LOT OF 9) / C CLAMP / ZMISC

CXSL15-25 /SMC CXSL15-25 DUAL ROD CYLINDER / SMC

SS-BNV51-VCR4C / VALVE-ISOLATION 73277-04 / GASONICS

887678 / COMMICATIONS / COMMTECH / FASTCOM

15-391861-07(LOT OF 10) / PIN,MCA,SAPH,3-16DIA,0.9097IN,1 FLAT END / LAM

R3S5-GHA-D() / SCREEN 2-AE-J0012 DGTL. SENS. FOR SC- SD SPIN IT / CONV

555232 / LAMP CONTROL ANALOG MODULE ASSY REV D, ES 20A FUSE / AXCELIS

0015-35592 / PULLY,MODIFIED,THROTTLE VALVE / APPLIED MATERIALS AMAT

0150-20019 / CABLE ASSY, CH C INTERCO 25' / APPLIED MATERIALS AMAT

CEMT-002 / TERM. BLK, MCN 13A, MCN 14, MCN 13B, MCN 15, TB1 / DAINIPPON SCREEN

0240-76625 / KIT, PALL FILTERS-PROC-HTR LINES / APPLIED MATERIALS AMAT

17143040 / OUTER SLEEVE, TUBE / AXCELIS TECHNOLOGIES

17-129423-00 / REFLECTOR, LOWER 300PVD MODULE / NOVELLUS

246695-006 / MOTION CONTROL FIRMWARE, 254386-001.K, 002.K, 003.K / ELECTROGLAS

215585 / FS-380 FLOW SWITCH ASSY,0.15 GPM / GEMS SENSORS

545-5517 / PCB, PMCONT / HITACHI

UR1BG3 / DYNASERV DD SERVO DRIVE ACTUATOR S1, -008N-1AB-1UB-N / YOKOGAWA

5040 / POWER SUPPLY 115-230 VAC / MELLES GRIOT

859-0808-007 / A5154 PCB, INTERFACE BOARD / ASML

0620-01516 / CABLE ASSY SIGNAL CONDITIONING INTERFACE / APPLIED MATERIALS AMAT

0040-04061 / BRACKET, TURBO, BIAS MATCH  / APPLIED MATERIALS AMAT

2000756 / SPLITTER  CTI 8112444G002 / AXCELIS TECHNOLOGIES

0100-01341 / PCB ASSY DNET INTERFACE BOARD / APPLIED MATERIALS AMAT

0242-85548 / HEATER RESURFACING KIT WXZ / APPLIED MATERIALS AMAT

17101140 / GAS LINE SOURCE GSD100 / AXCELIS TECHNOLOGIES

545-5504 / PCB, INT/PTM / HITACHI

2501B-2 / POWER SUPPLY RECTIFIER,5-2D300-0-2F-4-8F-S,35F7380,5.2V-300A / PIONEER

54-0126 / KEYPAD MANUAL MODE 54-0126 36-0116 / KLA TENCOR

14-8800-005 / DC MOTOR,ROLLER 30.3VDC 38.3:1 RATIO 500 CPR / ONTRAK

M21NSXC-LSS-SS-02 / POWER MAX II 1.8 DEGREE STEP MOTOR / KOLLMORGEN

540243010 / REGULATOR 1" UHP PVDF V782 W/SPG END / FRANK

314684 / O RING CHEMRAZ 2 268 / AXCELIS TECHNOLOGIES

111967 E01 / RING, ELECTRODE SHIELD, TOP OUTER CERAMIC, CO33, 200MM / SYSTEM USA

MY4N-D2 /RELAY, CONTROL /OMRON

MY4N-D2 /RELAY, CONTROL /OMRON

MBDDT2210T / AC SERVO DRIVE, 200-240V, 1 PHASE, 3.7 A, 50/60HZ, 400W / PANASONIC

310C0104-03 / ACTR ASSY 3/8 NC SA.111 STROKE PVDF / SEMITOOL

CDM TESTER M9000 5 DIGIT DISPLAY /ORYX CDM TESTER M9000 TEXMATE 5 DIGIT DISPLAY

CV16-K1K1-NCZZ / VACUUM ISOLATION VALVE, ANGLE PORTS, PNEUMATIC / MKS

928558-001 - AL-004291-P1 ASSY HOT ROTARY ION 3-8 NPT DRAIN - TEL

0020-92776 / MOTING MAGNET / AMAT

SEN 242-11-C1 / EJECTOR NEEDLES 20PK 1097204 / MICRO-MECHANICS

GESPIA-4 / PCB-PIA GESPAC GESPIA-4 / AMAT

155401033 / PRESS REDUCTION VALVE D32 / GEORGE FISCHER

90-0020-01 /UVP PEN-RAY LAMP /UVP

764L SS /HAM-LET 1-4 ION TEE P 300861 L5G1 /HAM-LET

GEPJ-011 /DUAL EMO CONTROL  ASSY /DNS DAI NIPPON SCREEN

6LV-DAFR4-PX-C / PNEUMATICS DIAPHRAGM VALVE / NUPRO

80089A / WAFER SENSOR PCB / SVG

A75-30-11-84 / 3 POLE, 125A, 120VAC COIL, IEC RATED CONTACTOR / ABB

P521EE R010 / PCB BACKPLANE BOARD / TOKYO ELECTRON TEL

UCS-SB-02VR / UCS-SERIES ALL METAL GAS FILTER / PURERON

CMLB-11S01 / BARATRON PRESSURE TRANSDUCER 10VDC 10 TORR / TYLAN

UG10-002064-11 / BRACKET SHIELD MOT / TEL EPION INC

E9-0500-3-01 / ASSY MOTOR ENCODER / PORTESCAP

MSMA5AZA 1E / AC SERVO MOTOR 30AC 42V 1.0A 3000R/MIN / PANASONIC

MSMA5AZA 1E / AC SERVO MOTOR 30AC 42V 1.0A 3000R/MIN / PANASONIC

153-6-1 / CAPACITOR, AIR, RF TING, MAG, LRC / CARDWELL

11636098 / GRAPHITE INSER OUTER SCARF / PLANSEE DESIGN

SS-4BK-V51-1C / VALVE PNEUMATIC NC 0.25IN CAJON / NUPRO

316L-P / DIAPHRAGM VALVE, UP / FUJIKIN

316L-P / DIAPHRAGM VALVE, UP /FUJIKIN

21016400120 / POWER SUPPLY 24V 6.9A / APPLIED MATERIALS AMAT

AMD522-25UP-01EYXS / PNEUMATIC VALVE; MAIN 0-0.3MPS, ORIFICE 20 / CKD

2002-0011-07PCE / 50-PIN MALE / MALE ROBOT DATA CABLE / PRI

CVHC-62976-35-1 / MOTOR / BARBER-COLMAN COMPANY

03-00149-00 / CABLE ASSY,CA150 / NOVELLUS