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。

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

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

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

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

348-0034456 / PCB CIRCUIT BOARD / LOGITECH

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

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

123460 / PCB ASSEMBLY Z-STAGE / ESI

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

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

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

E15006170 / LOAD PORT ISOLATOR PCB / VARIAN

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

39-0297 / D2 LAMP / KLA TENCOR

255867-001 / PCB BPCC INTERFACE / ELECTROGLAS

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

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

41300957 / PARKER VERIFLO REGULATOR MODEL HFR901S4PBX4PM / PARKER

E15000290 / DI / TEMP ASSY CONDITIONER PCB / VARIAN

E15005660 / PCB ASSY, SCAN SUPPRESSION FEEDBACK / VARIAN

25FC10 / F7750 EMI FILTER 25 A 120/250 V 50-60 HZ / CORCOM

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

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

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

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

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

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

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

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

E30000108 / M16-02-000B, VARIAN, FILTER, COALESCING AIR 1/4NPT / VARIAN

ALDPFOM-T1 / DIGITAL INPUT MODULE / ALGO

77-603-070400-001 / BOTTOM SEAL CONNECTION  / HERMES MICROVISION INC HMI

MSPLV10809 / IN LINE BLOCK ANGLE VALVE NW-16-A/O 1 1/4" VALVE / AGILENT

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

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

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

8043295G001 / HELIUM LINE / CTI CRYOGENICS

0150-21348 / SEC GENERATOR RACK INTERCONNECT EMC COMPLIANT () / AMAT

MR-J3W-44B-PE003 / AC SERVO DR. / MITSUBISHI

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

CE15CNS3 / EMO CONTACTOR / EATON

UFC-1660 CHF3 100SCCM / MFC 100SCCM,GAS CHF3 / IT 1660 IT UFC-1660 MFC

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

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

9760045 / ALARM PROCESSOR MODEL 7653 / BRUCE TECHNOLOGIES

2662930-01 / TEOS DOOR SWITCH UPGRADE / ASML

17128110 / ARC SLIT 15R (MO) / AXCELIS TECHNOLOGIES

17270080 / BLOCK (DM SFEM / AXCELIS TECHNOLOGIES

34-130130-00 / TC,SPRING-LOADED / NOVELLUS SYSTEMS INC

TM-6703-993 / PULNIX CAMERA P/N 10-7628 LOT CODE D 11/14/03 / PULNIX

EAUM-984000 / SWITCH, PRESSURE (DISCO) (SX DP-2DM S/ DISCO

03-00123-04 / CABLE ASSY,CA17 / NOVELLUS SYSTEMS INC

SWE30-12F() / PCB BOARD, 12V, 50.60HZ, SWE30-12F / TOKO

4505532152 / OPTIC LENSE, 1.5X/532NM, S6EXK0015, SILL 253241 / MMIT

BUTTON ASSY/800E-2X01(),800E-2X10(LOT OF 7),800E-2D0() /RADWELL

LPM-7508 / MI-O BOARD / WINSYSTEMS

002-0012 / CYLINDER, AIR, ELEVATOR / FORTREND

AB31-B2-4 / SOLENOID VALVE AB SERIES, 24 VDC,AB31-B2-4 / CKD CORPORATION

0240-23499 / PUMP KIT HARDWARE / APPLIED MATERIALS AMAT

17129710 / INA 14905 UPD TO 17106481 (STRIKE PLT DM S/ AXCELIS TECHNOLOGIES

DS2110-339559-11 / HEATER,PANEL (5911) / TOKYO ELECTRON TEL

4GB119-A2NH / SOLENOID VALVE, 0.2~0.7MPA, 2X19G / CDK

619-30-024.00 / HIGH POWER SPOT CONTROLLER / ZEISS

1500741 / EATON PCB ASSY INTCON THUMBWHEEL SWITCH C-1500741 REV. C3 / AXCELIS

UG10-002015-11 / CLAMP COVER MOT / TEL EPION INC

ZSE1-00-18C / COMPACT PRESSURE SWITCH FOR VACUUM / SMC

0200-18086 / NOZZLE-CERAMIC / APPLIED MATERIALS AMAT

HGF15M4AM / MANIF, KOGANEI F15T2-PN / F15T3-PN / HUMPHREY

102938-000 / BOARD / MICRO CONTROL COMPANY

734-027625-001 (LOT OF DM S / O-RING, VITON V75, C/S .210 BARR SEAL / LAM RESEARCH

3700-03769 / ORING 3.100 X .210 8085 KALREZ / APPLIED MATERIALS AMAT

853-080502-001 / ASSY CABLE PWR INTLK SEN UV / LAM RESEARCH CORPORATION

GAMD402-X0193-03Y / VALVE PNEUMATIC / CKD

WV-POL-44P-NC-EP-ASB / LIQUID FLOW CONTROLLER / BECO

MDZ480-V5H11A9G0 / 06DZ1036, PROGRAMMABLE FREQ CONTROLLER, AC 230V / E-T-A- ELEC

914CE2-6 / CONFIGURATION ML 750 / HONEYWELL

DM S914CE2-6 / CONFIGURATION ML 750 / HONEYWELL

910-1001-02F / PXB-721 / QUATECH

853-027429-001 / BOARD GAS RATIO CNTL / TYGON

3161961 / PCB BOARD, 5 ZTRIGGER INTERCONNECT, 3161961 / BTU ENGIN. - BRUCE

00-0402R / ASSY, MOTOR  GEAR, RIGHT / CRYCO TWENTY TWO

016-350-G1 / PHOTOMULTIPLIER TUBE HOUSING ASSY / INFICON

0100-00046 / PCB PWB AC CURRENT SENSE BOARD AMAT 8330 / APPLIED MATERIALS AMAT

0020-23350 / SHIELD RF HEATER / APPLIED MATERIALS AMAT

RS404T-6 / TURCK CABLE, U2070, 4409M / TURCK

CB4035 / GAS  INTERFACE BOARD A44035/04 / ELECTROTECH

A28703039 / SOL VALVE 1/4 NPT 2 WAY 110V, HONEYWELL V4046C 1047 / EDWARDS

54741001 / REALLY SLIM BEARING / KAYDON

TK6277A2 / CS8560D CCD CAMERA WITH 25MM COMPUTAR LENS / TOSHIBA

DHP480-24-1 / SWITCH MODE PWR SUPPLY, 100-240VAC, IMAX 7A / TDK-LAMBDA

9710028 / UHV-24 ION GAUGE FILAMENT / AGILENT TECHNOLOGIES, INC

404949-002 / NEEDLE-FLOW CONTROL .171 / FSI

372M-29011-1 / 472,SLURRY DISPENSE TUBE,FINAL / NOVELLUS SYSTEMS INC

RDQKB25-25-DCN882NN / CYL, COMPACT, AIR CUSHION / SMC

42EE35AF106 / FURNAS ELECTRIC CONTACTOR 3 POLE 60AMP 120V COIL / FURRAS ELECTRIC

R74G-4AK-RMG () / REGULATOR 50-125PSI 200MM (7060181B-00) / NORGREN

HC-UFS13D / AC SERVO MOTOR, 3AC, 120V, 0.7A,100W, 3000 RPM / MITSUBISHI

14018095 / PAD-HEATER 14 X 18 W/TC / AXCELIS TECHNOLOGIES

0021-11295 / ADAPTER, CONNECTOR, 750W MOTOR, ECP / APPLIED MATERIALS AMAT

8039737G120 / CTI-CRYOGENICS ON-BOARD UL/VDE CABLE / CTI CRYOGENICS

HF-KN13 / AC SERVO MOTOR, 3AC, 97V, 0.8A, 3000RPM / MITSUBISHI

103H5505-70G1 / STEPSYN MOTOR IT NZ SPINNER, 0.75A, 072 DEG / SANYO

720103680 / IC-10368-0 MOTOR MARMOTOR

17306400 / SHOWER TUBE BASE PEF XE GSDIII/LED / AXCELIS TECHNOLOGIES

0040-90006 / CLAMP 2 FINAL LINE WITH FRC PURGE CH A, S, C, OR 0, 300MM / AMAT

102941-003 () /PCB CCA ABES-M DRIVER-RECEIVER DAUGHTER/ MICRO CONTROL CO

0620-03143/CABLE ASSY DNET DROP 5.0METER 300V 80C RSC-WKC/APPLIED MATERIALS AMAT

3700-03765 / ORING, WAFER LIFT ID 2.109 CSD .139 / KALREZ

PFC 280PCX / POWER SUPPLY, 280 W, 100-240 VAC, 4.0A MAX / RAM TECHNOLOGIES

0140-17037 / AMAT HARNESS ASSY 24VDC POWER DIST 3 / APPLIED MATERIALS AMAT

0470802702 / HER, 8IN WAFER / NOVELLUS

939GT4L-G-OC / 939 NVIDIA NFORCE4 SLI ATX AMD MOTHERBOARD / JETWAY

FBPCB-0174 / PCB / DISCO

1851216-00 / TRANSFORMER, HIREL 208V 0710-4 / ADVANCED ENERGY

9602-0405 / FMK SATELLITE FTT/R DIGITAL GAS DETECTOR IT / MST

501-33981-01 / MOTOR DRIVE FOR LEAD SCREW / EXCELTEQ INC

834-067484-001 / CA, COAX, RF, GATING / LAM RESEARCH CORPORATION

CT040-000908-1 / MOTOR DRIVER 201382 ORIENTAL MOTOR CSD58-14N-P / TEL

BM70000 / PRI BM70000 R/B PCB, MOTHERBOARD / BACKPLANE / PRI

CDRB1BW15-180S / ROTARY ACTUATOR AUTO SWITCH MAX PRESS 0.7 MPS / SMC

279821 / QUARTZ TUBE ASSY / FUSION SEMICONDUCTOR SYSTEMS

306271-001 / FILTER-IN-LINE SS / FSI

CIF-50-DNM-PCI / PCB BASED ON EC1 L0405002 / HILSCHER

MOHLH506-A / PLATE,WATERPROOF (DFD-651) / DISCO

1110-01030 / NTWRK SPLITTER DNET 8 DROP PAS / APPLIED MATERIALS AMAT

BO19-3347 / KIT,TOOLS FOR CHNGING CONTACTS  FURNACE / PERKIN ELMER

C666244 / PROCESSOR CARD / VARIAN

2-VC-31759 / DNS SK-200 FAN ALARM INTERFACE  GEXH-0011 /DNS