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。

720-12165-000 / LASER HEAD P-S / KLA TENCOR

45700636 / LAM, LOAD LOCK, 4 PORT CROSS REF TO PIN GI, 45700636 / PARKER

UG10-001192-11 / SHIELD CHAMBER H / TEL EPION INC

AY00157-09 / JVAR MISC. 3 PCB / JVC

4660571-001 / KIT,COLD TRAP AND BACKEND BELLOWS ASSY / PENTAGON TECHNOLOGIES

WEC-02NX50-190S / WAVEGUIDE ASSY FOR TEL TOKYO ELECTRON / NIHON KOSHUHA

3020-01228 / CYL AIR 32MM BORE 19MM STROKE, NCDQ2B32-UIA9903 / APPLIED MATERIALS

0020-23878 / SIDE RECEIVER SPECIAL /APPLIED MATERIALS AMAT

15-157960-01 / ARM END EFF MTG R L/LK VCTR / NOVELLUS SYSTEMS INC

0720-00395 / FEED THROUGH RF / APPLIED MATERIALS

43F4C-2.33-047 / MOTOR ASSY DIGITAL ENCODER E5-400-315-IE-S-H-D-B / AMETEK

39-431-002 / FEEDTHROUGH-RF CERAMIC 39-431-002 / TEGAL

10004786 / SENSOR, HN33PA, REDLIGHT, REFLEX, FEELER / EVG-EV GROUP

2S701-089 / PCB, 2S005-167- / NIKON

6221750020 / ARM DRIVER BD PCB / MTI MACHINE TECHNOLOGY INC

740-07532-000 / SPINDLE HUB BRCKT, STGE FEEDTHRU, Y-AXIS 300MM SHRT / KLA TENCOR

LFS-43-15 /REGULATED POWER SUPPLY INPUT 95-132 VAC 47-63 HZ/ LAMBDA ELECTRONICS

645-093955-001 / OMRON. CAPACTIVE PROXIMITY SWITCH / LAM RESEARCH

851-8226-008 / 4 AXIS COTER PCB ASSY / SVG SVGL MICRASCAN

SNAP-B3000-ENET / TCP-IP TRANSPORT 12 SLOT PLC / OPTO 22

0020-70153 / MAT, HTESC E-CLEAN CONTROLLER / APPLIED MATERIALS AMAT

0200-09158-E / WINDOW, HEATER, CVD CHAMBER / APPLIED MATERIALS AMAT

3161201 / PCB BATTERY BACKUP ASSY / BTU ENGINEERING BRUCE

9715007 / UHV-24 ION GAUGE, 2 FIL THORIA/IRID 2.75 IN, / AGILENT TECHNOLOGY

0020-95749 / ENCLOSURE VA 360 MODIFI- CATION / APPLIED MATERIALS AMAT

79126-003 W/3192E022-R1/RENCO ENCODER W/BLDC 36-0348 RM 150 30.5MV/R/S 8.6/ELCOM

811-02-004 / SMG ASSY, 858 HEATER POWER FEED THRU / METRON TECHNOLOGY

03-274553-00 / LOWER DISTRIBUTION PCB NEXT HPD 300 / NOVELLUS SYSTEMS

BIR-027916 / PPS BOARD PCB / ADVANTEST

0010-76086 /WATER VALVE ASSY. CH 1,3, C / APPLIED MATERIALS AMAT

97847532 /VACUUM INTERLOCK PCB CARD /SCHLUMBERGER

LLL315R71A474MA11D/ CERAMIC CHIP CAPACITOR X7R 0612

BGR-024252 / PCB, PE, DRIVER AND INPUT OUTPUT / ADVANTEST

E15000011 / PCB,ACCEL,PS,MONITOR / VARIAN

IXLDP / LOW PRESSURE DIFFERENTIAL TRANSDUCER / ASHCROFT

716-250579-001 / LENS OPTIC UV / LAM RESEARCH

AF10PD AN-BN-A /PRESSURE INDICATOR 3802, 1-196KPA, 98F12002, DC24V/RKC INSTRUMEN

03-007711C01 / EXTENDED MEMORY CARD / ZIATECH CORP.

MSMA022A1F/ AC SERVO MOTOR INPUT 30AC 92V 1.6A / PANASONIC

E15000010 / PCB PS CONTROLLER REV B / VARIAN

H3CR-H8L /OMRON TIMER, 0.05S TO 12S, 50-60HZ /OMRON

0010-36160 / ASSY, CERAMIC RING AND PLATE, LIFT TUBE / APPLIED MATERIALS AMAT

0100-20004 / WPCB ASSY, CHAMBER INTERCONNECT / APPLIED MATERIALS AMAT

101VMEJ106-9001 / BUSTRONIC PCBA BOARD REV. B / BUSTRONIC CORP

249335/0432 / VAT SLIT VALVE, RECTANGULAR GATE VALVE A-785799 / VAT

137341 / LASER PULSE, CKA / ELECTRO SCIENTIFIC INDUSTRIES

583-7538 / PCB, OCTKEY, I 583 7638 / HITACHI

0100-00063 / PWB OPTO LIMIT DETECT / APPLIED MATERIALS AMAT

GM8712F660 / GEAR MOTOR 112-110 24VDC 512 CPR 96-1 RATIO / PITTMAN

W0465 / DELL BATTERY MODULE / DELL

15D782052L4 /MOTORIZED DIAPHRAGM VALVE 613 PTFE J475HP PS6.0BAR 230V 50/60HZ /GE

559113 / NPL 50X/0.85 INFINITY OPTICS / LEITZ WETZLAR

V21LVCES8080 / TYPE 21 80-3 TRUE ION BALL VALVE 3" 80MM C-PVC EPDM-ANSI/ ASAHI

CMLH-11-150S06 /TYLAN CAPACITANCE DIAPHRAGM GAUGE CMLH-61-150S06 /TYLAN

FC-2902MEP-T / MFC GAS(CHF3)(100SCCM), 2900 SERIES / TYLAN

SP-3751 / KN-SP, SP-SERIES MOTOR, 1.9RPM, 24V, 60HZ 8 1/2W 20MFD / HURST

CVDI01TPE /DURAPORE CVDI CARTRIDGE FILTER 10 IN. 0.2MICRON HYDROPHILIC /MILLPORE

HG-DBHUAS1277L1-Z / PRESSURE SWITCH, WIKA, IN-LINE, 3/4 / E  S TECHNOLOGIES

MXQ16-75 / SLIDE TABLE CYLINDER ACTUATOR, PRESS. 15-.7 MPA / SMC

0100-09040 / PCB BOARD, SSR AC CONTROL,0100-09040 / APPLIED MATERIALS

74868 UG-89U / COAX CABLE MIL-TYPE RG-58 C-U / VARIAN

0620-02604 / CABLE ASSY DNET TRK 30.0M 300V 80C RSM / APPLIED MATERIALS AMAT

D37310100 / TPU,INIM CARD / EDWARDS VACUUM

740-A16 / FREQ 47-63HZ, RELAY .5A,4.0VA 1-4A / THORNTON

06764-001 / HINE DESIGN 02423-001 ARM CONTROL PCB BOARD ABX-83801-33-00 / ASYST

UDX5107 / SUPER VEXTA 5-PHASE DRIVER 60A / VEXTA

E15006050 / PCB ASSY EXHAUST LEAKAGE MONITOR / VARIAN

HF-MP13 / AC SERVO MOTOR / MITSUBISHI

0021-23057 / GROD BUS LUG, DC HP CONNECTOR, 300MM / APPLIED MATERIALS AMAT

0200-09158 / WINDOW, HEATER,CVD CHAMBER / APPLIED MATERIALS AMAT

800-000-285 / BALL VALVE TYPE 546 DN40 PN16 PVC-U EPDM / GEORG FISCHER

06-014-6018 / TROLLEY-ASSY / SCHNEEBERGER

0040-05243 / , 300MM CHAMBER CABLE / APPLIED MATERIALS AMAT

70311590100 / BOARD ASSY VACUUM DRIVE / APPLIED MATERIALS AMAT

E991419 / OPTIC MASTER BOARD / AMTECH

3895-120537-11 / PCB, CONN-D1, SKP-F4 / TOKYO ELECTRON TEL

PS466-01A X 2 / 2 STEPPING MOTORS 4-PHASE 6.0V 1.2A 1.8DEG STEP / MYCOM

PS464-01A / 2 4 PHASE STEPPING MOTORS 4.0V 1.1A 1.8DEG STEP / MYCOM

542-602 / LINEAR GAGE / MITUTOYO

BM70020 / CPU85 XYZ BOARD CONTROL BOARD / BROOKS AUTOMATION INC

WPLV202SI / WAFERPURE MEGALINE GAS PURIFICATION SYSTEM / MILLIPORE

1977386-501 / M9072-004 IMAG 94V-0 2412 / DELTA

MCB-02 / PC / FAITH ENTERPRISES

10440C / PCB BOARD / OZTEK CORP

05-LHP-131-128 / LASER / MELLES GRIOT

851-8440-008 / SVG PCB A5101 INTERFACE / SVG

4L053-4 / PCB INDUSTRIAL MRO BOARD / COSEL

GRM155C71A225KE11D(LOT OF 10,000) / MULTILAY CER CAP MLCC SMD/SMT 2.2UF10V

52011683/VALVE, MODULATING, HE. DEFT, VG7842GT 7152GO,T284F, ERD0802/JOHNSON CON

UG10-002005-11 / SHIELD B / TEL EPION INC

UG10-002007-11 / SHIELD D / TEL EPION INC

UG10-002227-11 / SHIELD C / TEL EPION INC

UG10-002010-11 / SHIELD E / TEL EPION INC

9407-0065 / PCB PRINTER KEYPAD I O / NANOMETRICS

435533-9500-000 / STEMI 508 DOC BASE FOR MICROSCOPE / ZEISS

1491-7106E / LSM,2500-0002,2500-0387 / SCHUMACHER

600186-01 / PCB, DOOR CLOSED SWITCH / SVG

DMC-1030 / 3-AXIS MOTION CONTROL CARD, REV E / GALIL

23733-01 / UPRIGHT ROTOR SENSOR / SEMITOOL

99-80308-01 / MOT-MCE PCB DC DIST ASSY / SVG

12042 / TIM100 SENTRY EXHAUST FLOW CONTROLLER / PROGRESSIVE TECHNOLOGIES

1270-00515 / SW PRESS VACUUM SETPT 1.6 HG DECREASING / CHIP SEMI

BM300290000 / ASSY,BD,LR-IR BUMPER-PMI / BROOKS AUTOMATION

LM-101929N / SLIDE BEARING / SCREEN SEMICONDUCT SOLUTIONS CO

04708352-05 / BELLOWS, ASSM / VARIAN

103135-000 / SIGNAL SELECT RELAY BD / MICRO CONTROL COMPANY

ERJ-1GNF4701C /RESISTOR SMD 0201 AUTO AEC-Q200 /PANASONIC

3163060 / ELEVATOR MANUAL CONTROLLER, 3163061 / BTU ENGINEERING - BRUCE

ZOOM 7000 / 18-108 MM F/2.5 WITH MANUAL ZOOM, FOCUS AND IRIS / NAVITAR

EMP-C-26-90(LOT OF 10) / MESH, SEMI-CIRCLE / ZMISC

2K5411A / INSPEX LASSEMBLY / INSPEX

AY00180-01 / JVAR PCB XF  XS DETECTOR P.S. / JVC

15-01124-00 / PADDLE, DIMPLE, OPTICAL 100MM / NOVELLUS

778-1I / PCB ASSY 855-2423 ARM CONTROL GASONICS A-2000LL / HINE DESIGN

E15004630 / PCB ASSY SUPRESSION P. S. CONTROL / VARIAN

506-38390-01 / PCB HARNESS BRUSHLESS DC SPIN MOTOR / EXCELTEQ INC

149492 / TEMPERATURE PANEL METER 5W 24V MODEL / VIRTRONICS

127AA-00010A / MKS BARATRON 10 TORR UT FITTING / MKS

MQQLD25-100DM / 5 PORT SOLENOID VALVE / SMC

0150-00931 / CABLE ASSY.,60FT. MF EMO UMBILICAL / APPLIED MATERIALS AMAT

KH56QM2B048/CONVEYOR STEPPING MOTOR WITH COOL MUSCLE CM1-P-23L20A/JAPAN SERVO CO

2522497-02 / ASSY CABLE SENSOR 8P MX5051 1.2M / ASM

17122970 / APERTURE RESOLVING / AXCELIS

286479-01-01 / FACILITIES INLET MANIFOLD IN SIDE, 286479-01-01 / AXCELIS

136017 / UHV ELECTRICAL FEEDTHRU, F-VCF, STU200D-FV / VARIAN

MBDHT2510L07 / AC SERVO DRIVER, 240V, 3 PHASE, 50/60 HZ, 400W / PANASONIC

2-F2-33111 / ARM, LOWER, 150-MM / DNS DAI NIPPON SCREEN

50-1000 / MOTION CONTROLLER PITTMAN SHUTTLE MOTOR 30.3VDC 514204C223 / GALIL

PTN060-005S7 / GEAR HEAD WITH YASKAWA AC SERVO MOTOR SGMAH-02AAF41 / PARKER

SBV134 /SUCK BACK VALVE /FURON

PF2W720T-03-27-X641 / SWITCH SMC FLOW SWITCH / SMC