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。

XM-5701B / CD-ROM DRIVE / TOSHIBA

0020-31640 / INSERT,OUTER,NI,200MM, ESC / APPLIED MATERIALS AMAT

020-31640 / INSERT,OUTER,NI,200MM, ESC / APPLIED MATERIALS AMAT

23S0B0701 23S0B0702 / MAIN PCB, SUB PCB ASSY FOR 3B24-000068-1 / PBF

0020-78884 / FLEXURE,GIMBAL,6'TITAN-2 / APPLIED MATERIALS AMAT

73228BN3TN00A0J111C2 / VALVE, 24VDC,10W,30-1030KPA,5-150PSI / HONEYWELL

19307762-40 / FLOPPY DRIVE 3.5 FD-235HF, 6240-U5 / TEAC

70AD3243 / 70RCK24 24 CHANNEL I/O RACK ASSY / GRAYHILL

E3007-61004 / HP AGILENT E3007-61004 MODULE / HP

887 08 / ISO-K CENTERING RING WITH O-RING DN25 LEYBOLD 88708 / LEYBOLD

4IK25GN-CW2L / INDUCTION MOTOR 25W 230V 1200/1450RPM / ORIENTAL MOTOR

091802P2 / INJECTOR,QTZ W 28-15 QUARTZ BALL / QUARTZ SCIENTIFIC

UFC-8160 / UFC-8160 / IT

2251012 / ASSY UV LAMP, MAKEN INST/OPT ENG UV-22 / GSI GROUP

SS-4BK-V51-1C / BELLOWS VALVE-SC11 CLEAN / NUPRO

SS-4BK-V51-1C / BELLOWS VALVE-SC11 CLEAN / SWAGELOK

0040-20165 / BRACKET VCR CROSS MIXED / APPLIED MATERIALS AMAT

UG10-001393-11 / PLATE D PEG CAGE / TEL EPION INC

UG10-000336-11 / ELECTRODE EXTRACTION / TEL EPION INC

UG10-001392-11 / PLATE F PEG CAGE / TEL EPION INC

UG10-001395-11 / PLATE A PEG CAGE / TEL EPION INC

UG10-001387-11 / PLATE E PEG CAGE / TEL EPION INC

UG10-001388-11 / PLATE B PEG CAGE / TEL EPION INC

UG10-000337-11 / ELECTRODE GROD / TEL EPION INC

UG10-001394-11 / PLATE C PEG CAGE / TEL EPION INC

70312532000 / AMAT MOD LENS CONTROL BOARD 348331-9013 / APPLIED MATERIALS

3130033 / BRUCE PCB RELAY OUTPUT FOR MODEL 7351/ KOKUSAI SEMICONDUCTOR EQUIPMENT

527-35457-03 / PCB 24V REGULATOR POWER OFF VACUUM / EXCELTEQ INC

INS50-110 / NANO 5PH,110VAC DRIVE,AC100-120V,50/60HZ,400VA,2WIRE,0-40D C / MYCOM

PK525PA / STEPPING MOTOR, 5 PHASE, 0.35APH, SINGLE SHAFT / VEXTA

4700-0068-0001 / AFT STEPPER MOTOR / AXCELIS TECHNOLOGIES

EX140-SSD1-X16 / SERIAL IT, SZ3A60-5-M5-X7 ASSY SK2000 / SMC

VB2-RK404T-0.5-2PSG3M-0.5-0.5() / TURCK CABLE, U10917-25, 0112U / TURCK

53-0018 / PCB, HOST ADAPTOR, 44MB SYSTEM SM300 / PROMETRIX

8104575 / VARIAN O-RINGS 100PC PACKAGE / VARIAN

0010-06104 / ASSY CERAMIC PIN W ORING 200-300MM PRODU / APPLIED MATERIALS AMAT

SR3B12-000104-11/VALVE,SOL..SS5J3-60PD1-X139/TOKYO ELECTRON

0021-78729 / WET BLADE COVER / APPLIED MATERIALS AMAT

0101-0250 / THERMOCOUPLE,10X / MATRIX

BK350 / 350VA UPS SYSTEM, CS350 / APC

 BK350 / 350VA UPS SYSTEM, CS350 / APC

3300-02458 / FTGTUBE ELBOW 3-4IN SST 260 PSIG / APPLIED MATERIALS AMAT

210-17630-00 /WLDNT BLK REFILL,LOTO VLV/ ADVANCED INTEGRATION TECHNOLOGIES

713-012641-035 / SCRN, PLASMA, DUAL GAS Z.2300 / LAM RESEARCH CORPORATION

17099831 / SHIELD FARADAY CUP / AXCELIS TECHNOLOGIES

MCR-C-I/U-0 / STEAG 613741, ISOLATED SIGNAL CONVERTER / PHOENIX CONTACT

KSCPU-29A-01A / PCB / TDK

SS-BNVCR4 / 1/4 BELLOWS  VALVE / SWAGELOK

60-00005-00 / GAUGE VAC TUBE TC MODEL DV M6 / NOVELLUS

CYHC-62976-35-1 / MOTOR, 20VDC / BARBER-COLMAN COMPANY

KJL03-32 / TUBE ELBOW MALE ELBOW FITTINGS / SMC

1990318-101 / ACCELNET DHL OR EMS #P2697 YL COPELY CONTROLS 800-1656B / DELTA

1068905 / CCD CAMERA, KP-M2U DC12V 180MA, 3422999B / HITACHI

0190-34214 / AERA SE-45944 PI-98 MFC, GAS N2, 1000SCCM / APPLIED MATERIALS AMAT

0996-10046 / CAPACITOR AIR VARIABLE 145PF 7 / AXCELIS TECHNOLOGIES

LA23GCK-211R1 / MOTOR-P LENS ASSY, 2005988A / EASTERN AIR DEVICES

43700932 / PRESSURE REGULATOR / VERIFLO VALVES PARKER

6ES7 340-1AH00-0A / PROCESSOR, COMMICATION CP340 I/FRS232 / EM INDUSTRIES

17270060 / LINER STRIKER PLATE FEM / AXCELIS TECHNOLOGIES

003-01001-002 / WINDOW SAPPHIRE DRM LG / ESP SPARES, INC

CEPO22-BEP0030 / TEMP CONTROLLER / EBARA

0021-21132 / SADDLE CLAMP 1/4 GASOLINE .866 SPACING / APPLIED MATERIALS AMAT

1717481 / FRONT SLIT ARC CHMBR / AXCELIS TECHNOLOGIES

3600177 / CYLINDER AIR 20MM 70MM AL JDAS 20X70 87W KOGANEI /AXCELIS TECHNOLOGIES

4020-01285 / FILTER WG3NS6RR2 MILLIPORE-MYKROLIS ZM2300-02 / ENTEGRIS

3M80-001490-11 / TEL TRIAS SW300B/DIFF.P. PCB / TOKYO ELECTRON TEL

57100012 / PLATE R APERTURE DOOR / RUTHERFORD QUARTZ

DPX-200 /DIGITAL PRESSURE SENSOR /SX

4000-60048 / SBC I-O PIGGYBACK BD.,SR90322-10 / KENSINGTON

1001-305 / WDP-5, 23456, WDP 5204, 194V-0 9443 / WORTHINGTON DATA SOLUTIONS

PCL-839 / ADVANTECH PCL-839 3 AXIS STEPPING MOTOR CONTROL CARD / ADVANTECH

T0131 / DRIVER DOLCH VIDEO / FOSS INDUSTRIES INC

0050-37678 / WELDMENT SPOOL 4.69 M-FGECO / APPLIED MATERIALS AMAT

190E-AND2-CB40C / RELAY, 140M-C2E-B40  100-C09*10 / ALLEN-BRADLEY

SS-CHF12-1/3 /HIGH PRESSURE CHECK VALVE 3/4IN. FNPT 1/3PSIG/ SWAGELOK

2981-600612-11 / CONN CT / TOKYO ELECTRON TEL

MSDA023D1A16 / AC SERVO DRIVER 200-230V 3 PHASE 1.1A 200W 17BITE / PANASONIC

TTSR0U0220 / LDT POSITION SENSING SYSTEM STROKE 22 IN TEMPOSONICS / MTS

97171035 / CONTROLLER, DISPLAY, HE, DEFT / SCHLUMBERGER

0020-09604 / GAS FEED THROUGH TEFLON / APPLIED MATERIALS AMAT

625-738109 /ROFIN BASSEL MIRROR, OUTPUT, 80 PWRLINE, 025,585,578, A7-38.01/ROFIN

DCTG0600DPT011 / PRESSURE TRANSMITTER, IN 9-30VDC, OUT 1-5VDC / AMETEK

98481J / PCB MOTOR CONTROL 1208-2222 / CURTIS

MK825-2P / CONDUCTIVITY / RESISTIVITY SENSOR / SIGNET

MA-10392-B / DISK SHUTTER DISK 6 INCH 101 ENDURA 0020-28392 / MUTO TECHNOLOGIES

3160802 / PCB GAS POWER SUPPLY 7800 SERIES / KOKUSAI SEMICONDUCTOR EQUIPMENT

82F1965 / N2-02 BOARD / IBM CORP

26710R1WD2DD9CD / DIFF PRESS XDUCER 24VDCVAC OUTPUT 0-5VDC / SETRA SYSTEMS INC

087-00 / UPS FOR 4200, 087-00 / APOLLO

VAL-MS 320/30-FM / 2920243, SURGE PROTECTION FOR PWR SUPPLY / PHOENIX CONTACT

266591 / PCB, CHUCK CONTROL W/ INSITU UV PROBE / FUSION SEMICONDUCTOR SYSTEMS

KLR-8101 / O-RING-2-266K 8X81/X1/8 RS-568A / LAM RESEARCH

00-673816-00 / SHEILD, CONMAG COMBO / VARIAN

14F01BA / 150 PSI CRAIN, PARKER, 14F01BA / PARKER

123460 / PCB ASSEMBLY Z-STAGE / ESI

348-0034456 / PCB CIRCUIT BOARD / LOGITECH

2-140KAL9500() / O-RING, KALREZ 9500, 2-140,TAN, AIS, D14949979 45-232

405-542()/PAPER SHEET SET COLOR VIDEO COPY PROCESS CK10S CK10SE 10/ MITS

00192311 / STEAG PRESS REGULATOR LR-1/4-D-7 / FESTO CORPORATION

0200-10133 / WINDOW, RECESSED ENDPOINT GECO / APPLIED MATERIALS AMAT

15-391861-09 / PIN,MCA,SAPH,3-16DIA,0.8101IN,1 FLAT END / LAM RESEARCH CORP.

BM24110 / CABLE,VS INT DC-DC CONVTR / BROOKS AUTOMATION

39-0297 / D2 LAMP / KLA TENCOR

910-302-715-00 / AEG CONTACTOR, SH4 SH8, 24VDC COIL, 910-302-715-00 / AEG

0140-09244 /HARNESS AMPULE TEMP AMPOULE /APPLIED MATERIALS AMAT

0021-08490 / PLATE, BOTTOM, PREMATCH, BIASABLE ELECTR / APPLIED MATERIALS AMAT

255867-001 / PCB BPCC INTERFACE / ELECTROGLAS

E15000290 / DI / TEMP ASSY CONDITIONER PCB / VARIAN

E15005660 / PCB ASSY, SCAN SUPPRESSION FEEDBACK / VARIAN

05-8218300 / PNEUMATIC ANGLE VALVE MOD, MOTOROLA / NOR-CAL PRODUCTS

41300957 / PARKER VERIFLO REGULATOR MODEL HFR901S4PBX4PM / PARKER

0021-35712 /  SELECTOR SWITCH,DOME LIFT,DPS / APPLIED MATERIALS AMAT

2-F3-94150 / WAFER GUIDE, 200MM, 8 IN. / DNS DAI NIPPON SCREEN

SP-320-24 / POWER SUPPLY 24V 13A OUTPUT AC INPUT / MEAN WELL POWER SUPPLIES

 SP-320-24 / POWER SUPPLY 24V 13A OUTPUT AC INPUT / MEAN WELL POWER SUPPLIES

9395-SSE38 / O RING MB027-005208-1 TEL / GREENE TWEED  CO

250262 / ASSY THETA Z JOYSTICK PCB HORIZON 4085X / ELECTROGLAS

969-9833 / 120V TURBO PUMP VENT VALVE CONTROLLER / VARIAN

0020-29730 / CAP, SCR, SLIT DOOR BLOCK, 300MM HART CH / APPLIED MATERIALS AMAT

0050-31610 / WLDMNT,CH-D MXP HE DUMP TO VALVE PHII CMN MNFR / APPLIED MATERIALS

0050-31611 / WLDMNT,CH-D MXP HE DUMP TO IHC PHII CMN MNFR / APPLIED MATERIALS

6285/THERMO ORIEL 6285 MERCURY LAMP 67V - 85V RANGE 5.9A -7.4A RANGE/ORIEL INST.

1801103-00 / TRANSFORMER, HIREL 0704-4 / ADVANCED ENERGY

171790-001 / ASSY,I/O ADDR 2 / SCP SERVICES

100010645 / KIT,SEAL,CHEMRAZ/VITON,MAIN BELLOW, HPS 100010645 / CHEMRAZ

8043295G001 / HELIUM LINE / CTI CRYOGENICS

BM25846L02R-B / PRI PCB ASSY BM25846L02 REV B MAIN 230, AC, LADDR, 230V / PRI

26-8882-050 / KIT-QUARTERLY SPIN STATION / LAM RESEARCH CORPORATION

15-00578-00 / SLEEVE, FLANGED, AC FEEDTHRU, CERAMIC / NOVELLUS

2662930-01 / TEOS DOOR SWITCH UPGRADE / ASML