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。

716-057993-003 / INJ DUAL FACESEAL IEP HNYCMB CE / LAM RESEARCH CORP

EX5TT00K1 / EXIMOR SV5 SOLVENT FILTER SHIPPING PLANT BILLERICA,MA / ENTEGRIS

270-2487-11 / S MICROSYSTEMS 270-2487-09 SYSTEM BOARD PCB ASSEMBLY IT / S

0190-34213 /AERA PI-98 MFC, GAS N2, 300SCCM /APPLIED MATERIALS AMAT

97847530 / PCB CONTOLLER PUMP ASSY BOARD /SCHLUMBERGER

SBA-10-100H4 / ELMO PCB ASSEMBLY X OR Y CONTROLLER / ELMO

MXS25-50 / MXS SLIDE, 25MM BORE X 50MM STROKE / SMC

715-025106-001 / PLATE- LOWER BAFFLE, ESC / LAM RESEARCH

1135P / IPHASE LASER / JDS IPHASE

64-115413A03 / PCB, DUAL ISO DRIVE / ASM AMERICA INC

2329035-01 / VALVE A55C-2A-3ICB-2R-MPH / LAM RESEARCH CORPORATION

0150-04888 /CABLE ASSY, PRODUCER-E, P70 PNEUMATIC MA /APPLIED MATERIALS AMAT

566013 / PL APO 50X0.85 BD MICROSCOPE LENS / LEICA

0020-95981 / COVER SHIELD, CHAMBER EXHAUST POCKET METAL ALD 300MM / AMAT

3152290-000 / POWER MEASUREMENT HEAD, PMH 13-3000 /ADANCED ENERGY

LX42C4 / INPUT IT, PROGRAMMABLE CONTROLER / MITSUBISHI ELECTRIC

950-909-00 / PCB TW909 REV B / TERADYNE

17621-01/ PLATE GAS DIST, 150MM L350/ WONIK QUARTZ INTERNATIONAL

CRB1BW15-90SE / PNEUMATIC ROTARY ACTUATOR, MAX PRESS 0.7 MPA 7.1, 100PSI /SMC

BCS 24VDC /POWER SUPPLY, GAS BALLAST VALVE, OIL CASE PURGE VALVE,250V /LEYBOLD H

TS-4000Z /CABLE, MAIN CONTROL OUTLET, KP-30, AC100V, 2193825271, G01

36-0116 / FT-500 KEYPAD BOARD / PROMETRIX

KH3-93941 / CONTROL BOARD / OMRON

CMOH-01-160S123 / CAPACITANCE DIAPHRAGM PRESSURE GAUGE 28VDC 800MA/ MYKROLIS

E15005220 / PCB ASSY SUPPRESSION P.S. CONTROL E14005220 / VARIAN

691-0076 / SOURCE SINK PCB, 990-4358-001 / PNEUTRONICS

UG10-001322-11 / SHIELD EXIT APERTURE SI / TOKYO ELECTRON TEL

2350-SP9() / DISTRIBUTION PANEL DIGITAL POWER MEASURE ROOTECH /ACCURATE

710-404144-00 / PCB KLA-PZTFED, 073-400570-00, 710-400180-000 / KLA TENCOR

13371 / ION IMPLANT BASE PLATE / ELECTRO-GRAPH PLANSEE

391232 / PWB ASSY DUAL CHAMBER STD / FUSION SEMICONDUCTOR SYSTEMS

CAJSS-8-JT-A-10 / UT-ADAPTER 1/2 UT X 5/8 STUTZEN / CAJON

MSG-24V(LOT OF 10) / MAGNETKOPF / ORIENTAL MOTOR

872B12PMD2MT1 / BARATRON PRESSURE TRANSDUCER, 100PSIA/ MKS

870B12PCD2MW1 /BARATRON PRESSURE TRANSDUCER, 100 PSIA, 1350-00143/ MKS

A6330-12 / LIGHT PIPE EEW / HAMAMATSU CORP

MLTW-A-120F-3 / DIE PUMP SAW ASSY / DISCO

073-404145-00 / BREAKOUT BOARD 710-404146-00 KLA / KLA TENCOR

2S700-386- / PCB WITH KEYPAD 2S070-031-3 FOR OPTISTATION 3 / NIKON

217123 / LAMP ASSY,MHD / KLA TENCOR

810-802205-005 /PCB HOIST CONT ASSY CIRCUIT BOARD E204460 D1 94V-0/ LAM RESEARCH

95-0349 / DOWN STREAM EOP HOUSING L3510 / GASONICS

D145-45-802 / ELECTRODE SPARES KIT AIM GAUGE / EDWARDS

YZ07Z-11 / DNS, PCB CONNECTOR BLOCK / MEIDEN

04-705661-02 / PCB ISOLATED DIGITAL I/O PWA / NOVELLUS

F32100336 / SOLENOID BANK / SMC

TT1R2-1 / TEACH PAD,IVS 130,HH13842 / ATMEL

0240-09181 / KIT, ALCATEL BEAR LUB / AMAT

0050-39959 / GAS LINE CHMBR-D MXP HE,SUPPLY T CH PH II MNFM / APPLIED MATERIALS

450411 / 316L VALVE BLOCK WITH 3 TYPE NC GAS, .45-.6MPA / FUJIKIN

ALC0801-010-1000 / SERVO CONTROLLER / AUTOMOTION

CDG100-A /PRESSURE TRANSDUCER,10 TORR,SKY CDG /INFICON

CWFV2S1S3 / FILTER / MILLIPORE

03-00048-00 / CABLE ASSY, J2 CA 74, CONVECT CA 74 / NOVELLUS

697251 /PCB KEYBOARD /NEK

0021-21504 / SHIELD HEATER 8" ENHANCED ORIENTER DEGAS / APPLIED MATERIALS AMAT

PH266M-E1.2B /VEXTA STEPPING MOTOR, 2-PHASE DC 6V, 1.2A /ORIENTAL MOTOR

03-00296-00 / CABLE ASSY, J2 CA20, S LIFT, S EXTEND / NOVELLUS

T786120-BCS / INK CARTRIDGES, 786 STANDARD-CAPACITY / EPSON

PH544HG1-NA / 5-PHASE STEPPING MOTOR / VEXTA

2-VC-41048 / DNS 2VC41048 POWER SUPPLY MODULE COSEL PAA50F-24 / DAI NIPPON

BIR-021765 / BOARD, ALPG / ADVANTEST

02-00055-00 / ASSY FOOT SWITCH TO FRONT PANEL 78SN1 / NOVELLUS

GESS-003 FM-0014-1 / SPIN SV IFC BOARD .16 WIRING MAP-16 DNS / DNS

SS23F-H2F-50 / MOTOR DC 24V 1:50 GR / NIDEK

FCDN16CSB / KITZ SCT PNEUMATIC VALVE FDN 307 PPTAS / GEMU

SARE-1801C-CAA2 / ROTARY PNEUMATIC ACUATOR S1-549454-1 / NUMATICS

M10SS400M /M10 IT PLGN-MICRO SOLENOID VALVE ,24 VDC,1.8 WATTS,1093

CT310-245650-3 / 6 INCH SPIN CHUCK - B / TOKYO ELECTRON TEL

MR-J3-70A / DRIVER MOTOR / MITSUBISHI

FFO 300.3E / FOUP SINGLE WAFER / 40-30 SOLUTIONS PRODUCER

3700-03763 / ORING, ACCESS PORT, 8.734X139 8085 / KALREZ

MXQ16-20AS / PRECISION AIR SLIDE TABLE F9BVL W/ CONNECTIONS/ SMC

5136-DNP-PCI / DEVICENETPRO PCI ADAPTOR / SST/WOODHEAD

1181-000451-14 / MC-31039B T/B REV 2E CONTROL CARD / TOKYO ELECTRON TEL

13052-00 / PCB OPTO ISOLATOR DIGITA 13052-00 / GENUS INCORPORATED

7100-3639-02 / 3-PHASE ZERO CROSSING DETECTOR / AG ASSOCIATES

12042-P /TIM-100 AIRFLOW CONTROL BUSINESS IT / BROOKS AUTOMATION

GR-13991 /GSD SUPPORT SHIELD SLIT QUADRAPOLE /AXCELIS

1GT-16LD-B19 / 16LD, 10X24 DICING TRAY 150 DEG C MAX / DAEWON

292055-200 SINGLE / PCB DRS2412 292055-200 292055-400 / FSI

54435-PC2871 / 54435-PC2871 / NIDEK

545-5520 / PCB, CONECT / HITACHI

0021-10693 / INSERT, SLIT VALVE / APPLIED MATERIALS AMAT

15-256077-01 / END EFFECTOR,300MM,R.L/LK,VCTR / NOVELLUS

700752 / SERVO AMPLIFIER, PCB / AUGUST TECHNOLOGY NOW RUDOLPH

435063-90000-000 / MICROSCOPE STEMI 305 BODY, 5V DC, 2A / CARL ZEISS

26930() / DRYING TUBE, DRIERITE, AFFINITY HEAT EXCHANGER / WA HAMMOND

0020-21755-LTD / OUTER RING 6 CERAMIC CLAMP / LTD MATERIALS LLC

60042(LOT OF 18) / BALL BEARING / NTN

121-180 /PCB ASSY, 718-562 TEMPATURE CONTROLLER /THERMALOGIC CORP

0021-76697 / BAFFLE, 2.10 DIAMETER FLOWABLE CVD, PRO / APPLIED MATERIALS AMAT

TTIENR2-1 / ROBOT CONTROLLER / BROOKS AUTOMATION

AFC 202 NC / MASS FLOW CONTROLLER 200SLM N2-QUALIFLOW / QUALIFLOW STI

E17007382 / 16IN EXIT / VARIAN

002-8064-01 / CABLE, TRAVERSER, CONTROLLER / BROOKS AUTOMATION

20004119B / INSPEX ELECTRONIC ASSEMBLY / INSPEX

MODRN236--A / YAMATAKE SV HI-PRES PUMP / DISCO

M5V/30A / CARTRIDGE, MEGAPAC, 5V 20A NON-ADJUST / NOVELLUS

799000700 / PCA,INTERFACE,PCI-TESTER / SCHLUMBERGER

0270-00249 / FIXTURE,LIFTING PROTECTION,ESC - CESC,200M /APPLIED MATERIALS AMAT

7XE0-050E / WATLOW AOV, LO-40203500-9919A, 7XE0-050E / HIGH YIELD TECHNOLOGY

3161671 /COMMICATION INTERFACE PROCESSOR PCB/ BTU ENGINEERING-BRUCE

17E181W412G1/MOTOR .2-.25HP 208-230V .95-1.2AMP 2300-3300RPM 1PH 40C /BALDOR

J0201 / VARIABLE AREA FLOW METER GAP BASINGS TOKE AIR LUFT RC1D/1

230-0165-0 / PCB BOARD, AUX INTERTIE BOARD, 410-0224-0 / ESI

0544-000297-11 / PCB BOARD, IF FAN CTRL,HTE-FC5-A-11, N1090289 /TOKYO ELECTRON

P0249A /PCB BOARD ASSEMBLY, PL1011, SL2 94V-0 /ALCATEL VACUUM PRODUC

423627-9901-000 / SHUTTER HIGH SPEED, EXTERNAL / ZEISS

170200041766 / PALL 15NM UTILKLEEN EXCELLAR KLEEN / PALL

LPJ-175SP / LOW-PEAK CLASS J ELECTRICAL FUSE TIME DELAY 600VAC 300VDC

UG10-001186-11 / SHIELD CHAMBER B / TEL EPION

UG10-001195-11 / PLATE MOT GATE APERTUR / TEL EPION

UG10-002004-11 / SHIELD A / TEL EPION INC

907644-001 / SHAFT ROLLER / WATKINS JOHNSON

B-102-A-22 / GOLDLINE BRUSHLESS PM SERVOMOTOR, 230V,250H 7500RPM/ KOLLMORGEN

0020-28937 / PEDESTAL, 8 INCH / APPLIED MATERIALS AMAT

1906850 / BELLOWS LD LD MANIP 19S0091 / AXCELIS

3160231 / PCB, ALARM ASSY, OVERTEMP / BTU ENGINEERING

NFS110-7602P / PCB BOARD, 510084 / COMPUTER PRODUCTS

9615-1588 / HEATER, TEE / MKS

0040-02159 / BASE CONNECTOR HP TXZ 200MM / APPLIED MATERIALS AMAT

102467-001 / HPS COMMICATION BOARD / MICRO CONTROL COMPANY

D116058004 / D116058100, D116059001, PCB ASSY, MICROPROCESSOR BOARD / MRC

AX8575 SA88540 / TOOL INTERFACED PCB SEMOZON OZDELIVERY SYSTEM / MKS

ES2L12-000040-V1 SMC HIGH VACUUM VALVE XLA-25A-X1143 / TOKYO ELECTRON TEL

SC11B / TEMPERATURE SWITCH CONTROL SYSTEM / ASCO

625CP / TEMPERATURE CONTROLLER,625CP-582-1373 / BOLD TECHNOLOGIES

E15000080 / PCB VACUUM GUAGE CONTROL / VARIAN

DLT-16M-A-C-50 /THRUSTER SLIDE MODEL 1211M50 250PSI W/PARKER WW499206A/ ROBOHAND

TJ36-IC316SS-18U-18 / THERMOCOUPLE DUAL SS 18 IN. / OMEGA