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。

0021-61320 /DEP RING 300MM ESC /APPLIED MATERIALS AMAT

0021-04642 / SHIELD, 8 INCH CLAMPED ALPS  GROD LOWER / APPLIED MATERIALS

2006-1053 / AMPLIFIER SERVO PCB / LUMONICS

0010-34880 / SUBSTRATE ASSY, TOXIC MLD, ELBOW MALE IN / APPLIED MATERIALS AMAT

OT-2B / PCB, OVERTEMP / PPI

1V82-000075-11 / HPS-T011C NOISE FILTER E19002446-2 1V80-700120-15 / VARIAN

PSC-8725 / CONTROLLER 8725A POU 200M / NOAH PRECISION

0010-22876 / DOOR ASSEMBLY 300MM MD SWLL 0040-03795-002 APPLIED MATERIALS AMAT

853-017643-003 / CAPACITANCE DIAPHRAGM GAUGE CMLA-21 LAM 4420 / CELERITY

02-325834D02/ASSY-THERMO-COUPLE POSITION FIXTURE-RH NO. 1507/MITUTOYO

0021-70013 / MAGNETIC, HOLDER INNER ROTATION / APPLIED MATERIALS AMAT

82231-DP/AIR DRIVEN FLUID PUMP NOM RATIO 25TO1 150 PSI AIR 4000 LIQ /HASKEL

NGW415000 / GATE VALVE 3 INCH ISO80 / EDWARDS

DS2110-358712-12 / 46 HEATER 80A #2110-358712-12 / TOKYO ELECTRON TEL

IOM1A0009 / CARD-IOM FREQUENCY GENERATOR ZT-8950 / SMS

3M10-150692-12 / SHIELD, TABLE, H ESC / TOKYO ELECTRON TEL

950-566-00 / PCB, TW566 REV-, 23119 9218 / TERADYNE

99-80268-01 / PCB, SYSTEM POWER SUPPLY / SVG

110534808 / EARTH BLOCK STAMP POSITION DRAWING / ULVAC CRYOGENICS INC

2105-222150-B1 / QUARTZ HOUSING HERAEUS 90152387 / TOKYO ELECTRON TEL

0020-31638 / COVER, 200MM, ESC / APPLIED MATERIALS AMAT

631B11TBFH / MKS 631 CAPACITANCE MANOMETER 10 TORR / MKS

0040-06438 / WELDMENT, FILTER HOUSING, 300MM MEG LDM, / APPLIED MATERIALS

3-A02707-01 / QUARTZ SLEEVE / HITACHI

809-470484304A / PIGTAIL-NH3 / AIR PRODUCTS

809-470484904A / PIGTAIL-PH3/NH2 / AIR PRODUCTS

853-49462-011 / BARATRON VACUUM SWITCH 100 TORR / LAM RESEARCH CORPORATION

 LISTING0200-17774 / RING QUARTZ 09 HEIGHT .12 RECESS DPSII /APPLIED MATERIALS AMAT

EP70312590200 / CLC-COLUMN CONTROLLER PCB, OPAL / APPLIED MATERIALS AMAT

0020-35625 / SHIELD DOME NECK / APPLIED MATERIALS AMAT

0140-08724 / HARNESS, E-CHAIN AI/O HEAD, 200MM, CABLE ASSY / AMAT

0190-08035 / PAD SWEEP DRIVER, SPECIFICATION, 300MM R / APPLIED MATERIALS AMAT

128-30000 / PCB, CPU BOARD, FOR 0090-01220 / SBS EMBEDDED COMPUTERS

0010-19253 / ENABLE RF COUPLER PLATE REV-2 / APPLIED MATERIALS AMAT

440-406 / DARK SPACE SHEILD / TOKYO ELECTRON TEL

DS2187-340201-11 /45HEATER,20A- #2187-340201-11 /TOKYO ELECTRON TEL

DMA-25030 / BARATRON, 1000 TORR / MKS

223B-22809 / DIFFERENTIAL PRESSURE,TRANSDUCER,50TORR /MKS

99-80302-01 /PCB ASSY STACK MODULE 90S /SVG

0040-83527 /EDGE RING / APPLIED MATERIALS AMAT

595021 / CHAMBER GATE ASSEMBLY DOOR ASSY PS3 SMC MGPM25-30-XB13 / AXCELIS

DSRVB-B / DECSERVER 200-DL / DIGITAL

3200-1065-01 REV L / CONTROL BOARD / ASYST TECHNOLOGIES

103802-000 / PCB BD, 103801-000 / MICRO CONTROL COMPANY

C8261AF-SC14750C-DWHOVVMMS / 8261,SC 14 HOV, W SEAL,250-750SCCM,9PIN / CELERITY

0100-18065 / PCB ASSEMBLY,CHAMBER TRAY ULTIMA POS B/D / APPLIED MATERIALS AMAT

0020-23023 / REDUCED EDGE CLAMP RINGE 6" TIW JMF / APPLIED MATERIALS AMAT

715-067214-001 /SEAL PLATE, BARRIER, VAT RKR VLV, NON-CU / LAM RESEARCH CORP

H8A-VRGO / INTEGRATED GAS STICK VALVE GAUGE ASSY / AZTECH CONTROLS

5UOT301195 / SEAL IT R-AXIS VEXTA PK543AW-A80 /KOKUSAI SEMICONDUCTOR EQUIPMENT

0140-89009 / HARNESS ASSY FUSES TO UPPER LAMP MODULE / APPLIED MATERIALS AMAT

810-017001-004 / I/O MOTHERBOARD EXPANSION / LAM RESEARCH CORPORATION

SR3B10-25-12/AIR FLOW RING CATCU/TOKYO ELECTRON

0020-23669 / CLAMP RING MBSS6-B / APPLIED MATERIALS AMAT

17-323903-00 / SHIELD, BARREL, ARCS, PVD, 300MM / NOVELLUS

0020-26444 / LIFT HOOP, WAFER, 6 HTESC / APPLIED MATERIALS AMAT

54-0286 / PCA, ZERO ORDER FOCUS SENSOR / KLA TENCOR

000000-2211-921 / POWER ADAPTER NETWORK SLOT 577007-5143-097 / ZEISS

2-VC-36360 / PCB, 2 IF-B I/O DISTRIBUTION, BP-0113A / DNS DAI NIPPON SCREEN

0040-04896 / BELL JAR QUARTZ Q-KOTE 200MM / APPLIED MATERIALS AMAT

4060-01102 / MANFSLITVALVEPNEU16-STATION / APPLIED MATERIALS AMAT

839-065045-003 /TOILET BOWL BELLOWS REAR ASSY W/ HW / LAM RESEARCH CORPORATION

D-37229-A / CYLINDER, LIFTER, BELLOWS / BIMBA

99-38534-01 / STATION CONTROL POWER  / SVG

E15000300 / PCB ASM ION IMPLANT LINEAR SERVO AMPLIFIER ASSY / VARIAN

3030-15769 / FRCA52163311 N2 DPS FRC V11 CONTR FLOW 500 SCCM MKS / AMAT

RD-021M8_PX243G01-01A/RORZE 2P MICRO STEP DRIVER W/ VEXTA 2-PHASE STEPPING MOTOR

10004015 / POWER SUPPLY F8B6A4A6A6 90-250VAC 50-60HZ 11.5A / XP POWER XPIQ INC.

3400-00317 /HP FLEXLINE 1.0IN DIA 50FT LG M-STR/F-STR CTI 8043460G600 / APPLIED

6805-00293-0001 / PCB, ASM F012063 / ASML

716-028739-001 / CERAMIC SLEEVE / LAM RESEARCH CORPORATION

853-096430-002 / MODEL EP1001; VOLTS:100-260; 3 AMPS / LAM

03-006311D02 / PCB ASSY GAS CONTROL LOGIC, 16-006341D01 / ASM AMERICA INC.

QMA 064 / GAS ANALYZER / BALZERS

E11000880 / CARRIAGE PIVOT / VARIAN

3300273 / PRESSURE BASED FLOW CONTROLLER MKS 1640A 011 / AXCELIS TECHNOLOGIES

1D80-002745-11 / SMC ANGLE VALVE XLA-50A-X500 / TOKYO ELECTRON TEL

 CEM3586T BLOWER FAN MOTOR ASSY / AMERICAN FAN

SCU-H1301C1 / TURBOMOLECULAR PUMP STP CONTROL IT, STP-H1301C1 / SEIKO SEIKI

344862 / PNEUMATIC PENDULUM GATE VALVE INTERFACE BODY CONTROLLER / VAT

853-017340-002-A-LM /RESISTOR HEAT SINK ASSEMBLY /LAM RESEARCH CORPORATION

02-127162-00 /ASSY 02-126405-00 APW 06-01391800-405 MC2 HANDLER CNTRL / NOVELLUS

715-031752-205 / CAP LOWER ELECT 5" DOOMED .020 DEGREASE / LAM RESEARCH

DE0182/REFLECTOR PRIMARY M16 INSIDE DDS 300M REFURB/AMCOSS FACILITATE INNOVATION

91-00505A / COVER QTZ 200MM HIGH PROFILE NOTCH ESC / NOVELLUS

91-02052A / INSERT, SNNF, 91-02052A / WEST COAST QUARTZ

161460-005 / DAUGHTER, INTERFACE GAS PCB / SVG

002-9401-01 / SERIES 8 ROBOT CONTROLLER KLA 8450 / BROOKS AUTOMATION

E3004-61030 / MAINFRAME / AGILENT TECHNOLOGIES

CWAZ40EL1 / IWAKI PR FLTR OPT 40-118 0.05U / MYKROLIS

602045 / CLAMP-RING UPPER / LAM RESEARCH CORPORATION

970910-1 /NOR-CAL HEATER JACKET WITH UPPER AND LOWER ASSY 200W 240V 571728 /NOR-

DS2110-358058-11 / PIPING, 50A, SUS316, 10S / TOKYO ELECTRON TEL

TNK3A0311 / PLATE-DISPERSION TANK SULFURIC SMS1-4 ONLY / SMS

BLY-020650 / DPU BACKPLANE PLY-820850AA / ADVANTEST

0021-84015 / CHAMFERED PUMPING RING ASYMMETRIC UC3 L / APPLIED MATERIALS AMAT

TWC-39D-026W18 / WAVEGUIDE ASSY FOR TEL TOKYO ELECTRON / NIHON KOSHUHA

11210-0203MC /EDWARDS HIGH VACUUM INTERNATIONAL,B6515000,94-32762 /EDWARDS

IPC-6806WHP-20Z / INDUSTRIAL COMPUTER WINDOWS 2000 USB, ISA SLOTS / ADVANTECH

1D10-202988-11 / COVER BELLOWS A-4 / TOKYO ELECTRON TEL

EP3620-4460-7-3-56C-CU / CENTRIFUGAL PUMP W/O SHROUD 90DCV HP1/3 RPM 3000 3.3AMP

USA4-11-28-UR / MULTI AXIS IVERSAL SERVOR AMPLIFIER / BERELEY PROCESS

820-07076-000 / PCB, GAGE SWITCH INTERFACE WITH EXCHANGE / KLA TENCOR

627A-13614-S / MKS BARATRON / MKS

RTC3 / PCB - PC INTERFACE RTC3 GALVO CONTROL SCANLAB AG / SCANLAB AG

16808-501 / BOARD A/D VL-1262 VERSALOGIC / SEMITOOL

VM16A-203-0075 / PCB, VISION IMAGE PROCESSOR CARD WITH CORE EXCHANGE / COGNEX

04-278740-00 / ISOLATOR D-MANIFOLD CERAMIC / NOVELLUS

0020-08673 / SHIELD, INNER, AL ARC-SPRAY SST, SIP / APPLIED MATERIALS AMAT

SYS68K/SASI-1 / HOST CONTROLLER VME PCB LAM / LAM RESEARCH CORPORATION

663-1966C / ION PUMP POWER SUPPLY WITH CABLES / AMRAY

040076-001 / TAZMO ROBOT END EFFECTOR BLADE / VARIAN

605-092547-100 / PCB, CPU, 486X4-100, DDP, EI8A / LAM RESEARCH

853-011632-002 / 4500 LOWER ELC ASSY / LAM RESEARCH

BG4-4078 / CANON CPU-86 BH8-0675-03 AF CPU / CANON

0021-11368 / COVER RING; LTESC, CU-300MM; PVD; SMALL / APPLIED MATERIALS AMAT

0020-22584 / , RESISTIVITY METER,DOT TWO / APPLIED MATERIALS AMAT

0200-35785 / RING WAFER LIFT / APPLIED MATERIALS AMAT

0F1000C / OIL FILTER ASM / LEYBOLD VACUUM PRODUCTS INC

1D86-027080-31 / CABLE, PC1 TO GENERATOR / AWM

PF802-ADS / TEACH PENDENT PROFORT 802 / INTERNIX

0190-17609 / VALVE / APPLIED MATERIALS AMAT

03-006311D01 / PCB ASSY GAS CONTROL LOGIC / ASM AMERICA INC

15-00703-00 / TOP PLATE, 150MM, NOVELLUS C1 6 INCH / NOVELLUS

0200-09911 / COVER,QUARTZ,8"",STEPPED,LIFT 2 NOTCHED,E / AMAT

628B01TEE1B / BARATRON CAPACITANCE MANOMETER 1 TORR / MKS

SM0353-Z001 / PCB BD, PRESSURE CONTROLLER, G001-1 / SIGMAMEL TEC

0150-20166 / CABLE ASSY, TURBO PUMP TO CONTROLLER 75F / APPLIED MATERIALS AMAT

0200-10735 / MIDDLE LINER 300MM NANOCURE PRODUCER S / APPLIED MATERIALS AMAT

0040-75718 / BASE, WRIST 300MM ROBOT, CORROSION RESIS / APPLIED MATERIALS AMAT

1200226-A / PHENOLIC ELECTRICAL PASS THROUGH / VARIAN