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。

IRAI Z-AXIS ROBOT / ASSY HG-KR23 TEL PROZ / TOKYO ELECTRON TEL

11180307-07360E / SPINDLE ASSY FOR KLA ECD SEM / KLA TENCOR

840-0022-422 / NANOSCOPE STAGE  JR CONTROLLER / DIGITAL INSTRUMENTS

COMPUTER NSX-SERIES WHS / COMPUTER PC FOR NSX-SERIES / AUGUST TECHNOLOGY

ES1D10-302586-12 / COVER BELLOWS / TOKYO ELECTRON TEL ES1D10-302586-12

270 ST / SPIN RINSE DRYER SEMITOOL SR 3615-4664 FGS1990 / RHETECH INC

10145595 / SHAFT SOLID SUSCEPTOR SUPPORT QUARTZ XYA-589528-01 / XYCARB CERAMICS

379093 / PCB ASSY TIMING GENERATOR AIT2, SLOT 10, 0053946-000 W/EXCHANGE / KLA

XU-CM7400 / YASKAWA CONTROLLER FOR TRANSFER ROBOT / YASKAWA

0010-01929 / AMAT ASSY PVD RF MATCH, BIASED ELECTRODE BESC / APPLIED MATERIALS

CP / CP CHILL PLATE ASSY SK2000 / DNS DAI NIPPON SCREEN

0195-14769 / PCB, 0195-11146, GENREAL MICRO SYSTEMS V295,PWB 90-2248-030 / AMAT

4090U / POWER SUPPLY MODULE PSME 115VAC 15A / ELECTROGLAS

ES1D05-300061-13 / QUARTZ RING,INSULATOR A7-2 / TOKYO ELECTRON TEL

AS305619-04 / ASSY IQ PUMP I-FACE IT XEF2 PIP / STS

CT5085-412118-12 / FORK, ASSY CHA / TOKYO ELECTRON TEL

AFF-600 / FLAT FINDER - AUTO - UP-DOWN - MACTRONIX / MACTRONIX MACTRONICS

XGT310-30-1A-X446 / INTERGRA VALVE LOAD LOCK SMC / AXCELIS

NT30M 85567 / NT30M CONTROLLER ASSY / LEYBOLD VACUUM PRODUCTS INC

E17267780 REV-A / WAVE GUIDE FOR VARIAN IMPLANTER / VARIAN

1020738 / LAMP LAMP DEGAS LAMP 1 / ULVAC TECH

YM-03-1039TAOV / POWER SUPPLY, PLVPS / NEMIC-LAMBDA

ES2L80-001146-11 / MATCHER LIFTER MAT / TAIYO YUDEN

853-013541-002 / ASSY THROTTLE VALVE, HTD ; MODEL PH265-02 / MILLIPORE

0100-00496 / POWER CONTROL ASSEMBLY / APPLIED MATERIALS AMAT

47071B / SWITCH MATRIX / AVAGO TECHNOLOGIES

0100-01439 / FDT PCB LOOP CONTROLLER CE LCVME-10X / APPLIED MATERIALS AMAT

37-222-002 / COOLANT PLATE REV F 903E / NOVELLUS

0020-49785 / FACEPLATE,APF,300MM PRODUCER SE / APPLIED MATERIALS AMAT

853-065312-104 / LAM DRY ETCH ENCLOSURE, HELIUM/RF PRE-BUILT / LAM

E19009250 / FEED THRU ROTARY RIGHT HAND / VARIAN E19009250

4S288-271 / QI QUEENSGATE INSTRUMENTS POSITION SENSOR IT NS2300/D / NIKON

C108456001 / PCB ASSY X CORRECTION INCLUDES PCB E15001560 / VARIAN

LPD- / LPD#2 OVERHEAT DETECTION / RKC INSTRUMENT INC

0010-07331 / ASSY, LLA SWLL LIFT HOOP, 200MM, CENTURA / APPLIED MATERIALS AMAT

919-0402S004 / VARIAN ION PUMP DIODE STYLE / VARIAN

E11104160 / VARIAN ASSY ON BOARD CRYO PURGE CONTROLLER / VARIAN

CS014-000722-1 / TEL KOMATSU ABBAA00220 CIRCULATOR, NE-363C / TOKYO ELECTRON

0342-1050-0001 / PCB ASSY HORIZONTAL SCAN GENERATOR NV42XX NV 6200 / EATON

853-021917-004 / ASSY,HTR PADDLE/FDTHRU,ISO,4 / LAM RESEARCH CORPORATION

0040-13378 / WING,RT,ENHANCED HP / APPLIED MATERIALS AMAT

AWG610 / OSCILLOSCOPE SCOPE AND PROBES / TEKTRONIX, INC

J3-057110-A / MAGNETIC FUILD SEAL IT / RIGAKU

9700-2987-04 / LOCK-PORT ASSY, ASYST / ASYST TECHNOLOGIES

715-042721-866 / HI FLOW LINER CHAMBER LAM 2300 / LAM RESEARCH

170013020 / PLATE GND SCAN SUPPRESSOR UPSTREAM SI COATED / AXCELIS TECHNOLOGIES

E11054503 / GAS  POWER DISTRIBUTION LEA INTERNATIONAL A70-00-5026 / VARIAN

130400604 / SCAN-HEAD, GALVO RS.S.10-3 532M HEAD / ROFIN-SINAR

MOGCR738-5D-080 / CHUCK TABLE / DISCO

PY0A300W4PW1A00 / DRVR SERVO MOTOR FOR 7.5KW MOTOR 200VAC, PY / SANYO DENKI

6500-T3-F03-D12-K-P1-U1 / INTEGRATED FLOW CONTROLLER, CON: 3/8" / ENTEGRIS

1-A04824-01 / GRODED ELECTRODE, XT / TSM HITACHI

710-655651-20 / CORNERTURN 3 PCB / KLA-TENCOR

TX20-9V00-1AA-4AS/RF GENERATOR TX SERIES, 2000W, 1126-700-01/ADTEC PLASMA TECH

4600D-20250 / POWER TEN POWER SUPPLY 250 AMPS 20 VOLTS 190-253 VAC 3 PH / VARIAN

552547400 / CHRISTENSEN LSX18T-A-L 18" TOUCHSCREEN MONITOR / LAM RESEARCH

10-000-0392/ IMTEC ACCUBATH QZ-A2002-51 SOLVENT TANK SCP

0190-34645 / AMAT DC POWER SUPPLY 20KW 480VAC,AE 3152411-264 / APPLIED MATERIALS

0010-05965 / 0010-05965R EPO FLAT ESC 200MM 0040-00876 0040-05592 / AMAT

3157501-000 / R GEN. PE1000 40KHZ ISH / ADVANCED ENERGY

0010-44818/SYSTEM MODULE ASSY H2 LEAK DETECTOR EPI 300MM/APPLIED MATERIALS AMAT

02-113639-00 / ASSY,MOD CNTRL,P166/64 / NOVELLUS

1850A-12-5007 / WAFER,RTD,300MM,SENS,350DEGC / KLA TENCOR

720-24480-001 / HIGH VOLTAGE POWER SUPPLY ES30 0084425-000 / KLA TENCOR

2325325-00 / ANTON PAAR L-DENS SS G 1/8 IN DENSITY TRANSMITTER W/ PCB / SEZ/LAM

70007190 / ASSY REV C, CHASSIS, PCB BASE, 31A / VARIAN

PROX-H472LF-062L1-G1B / CPU,MOTHER BOARD - INTEL / NOVELLUS SYSTEMS INC

852-017500-350 / MONITOR DISPLAY / LAM RESEARCH CORPORATION

3152292-000 / MDX-L DIAGNOSTIC , AMAT 1140-01207 / ADVANCED ENERGY

MSC700 / DC POWER SUPPLY AND FUSE  / TDK

CERB-0016 2-VC-152 / TRANSPORT BOARD PCB 80A SLOT 2 AP-1032C W/ EXCHANGE / DNS

TIH6-13BASHH /PTFE IN-LINE CHEMICAL HEATER 6000/ PROCESS TECHNOLOGY LUFRAN, INC

0040-33590 / PLATE, BASE, MOTING NOVA / AMAT

B722-43-000 / TURBO PUMP, EXT75DX NW40 / EDWARDS

54750A / DIGITIZING OSCILLOSCOPE, MAINFRAME / HEWLETT PACKARD

15-276525-00 / ASSY,XFER PLATE 02-112622-00 / NOVELLUS

3870-02568 / AMAT VALVE GATE LOWER PLATE / APPLIED MATERIALS AMAT

301-384.035-000 / PCB - STEP MOT CTRL - SMC 3 A / LEICA

WDFVSTX2F /FILTER .1UM 1/2" POU MILLIPORE/ MYKROLIS

DP-20F / YAMADA HIGH PURITY DIAPHRAGM PUMP / YAMADA

0040-08944 / LID ANNEAL ECP 200MM / APPLIED MATERIALS AMAT

0040-13379 / ARM LEFT HP ROBOT / APPLIED MATERIALS AMAT

61-CHA-00VS2-01 / SPLITTER(CHG'D TO F-SERIES PER B. FELT) / FOCUS AUTOMATION

407-355 / PAPER SET FOR COLOR VIDEO COPY PROCESSOR; MODEL CK2000BL / MITSUBISHI

103705-001 / PCB VECTOR STORE MOTHER UPPER ABES IV / MICRO CONTROL COMPANY

2595451-01 / DIETZ-MOTOREN BLOWER, DN16 R5-1A, WIP / ASM AMERICA INC

1131-674 / PROMENADE 10 MCU 28 / ZIESS

W2501PH01 / MILLIPORE W2501PH01 PUMP PHOTO 250 NO RETURN / MILLIPORE

 LISTING07694-A / MODEL PM-702A AUTOMATCH, POWER  / BRANSON IPC

912419 / GENERATOR MICROWAVE IPC 1.2KW 2450 MHZ/ GERLING APPLIED ENGINEERING

0010-35456 / EPSILON 300MM DUAL HEATED ZASSY. / APPLIED MATERIAL

620RF1285A0 / PUMP, MAGNUM 620, W/ SURGE / TREBOR

0040-54318 / LID PLATE, ALD TAN, 300MM / APPLIED MATERIALS AMAT

2012-038 / MDX 10KW SLAVE AE POWER SUPPLY / ADVANCED ENERGY

301-M6L1-S 4-100-001/IDS DISPENSER PUMP 300 FSI 305982-011/IDI INTEGRATED DESIGN

A1022480 / HIGH VOLTAGE POWER SUPPLY 35KV MODEL G303-56 / HITEK POWER

826-573001-150 / LAM ALLIANCE VERSION 1.5 BACKUP DISK / LAM RESEARCH CORPORATION

133-D06-3 EXO-2480 / PCB ALPHA NUMERIC / MATROX

4B990-656AN-EPT / R STGE MOTOR DRIVE ITCORE RETURN / NIKON

16-383599-00 / SHIELD TOPHAT IRISCELL / APPLIED MATERIALS AMAT

RF GENERATOR BREAKER POWER  / RF GENERATOR BREAKER POWER , CB1-CB8 / ABB

0041-26595 / P DOME 12.5 ETERNA FCVD PRODUCER GT / APPLIED MATERIALS AMAT

CECC-101 / HMDS AUTO SUPPLY DNSH6-BN0 WITH EXCHANGE / DNS DAI NIPPON SCREEN

0190-29389 / ADVANCED ENERGY VHF OVATION 35162 POWER SUPPLY 3150861-010E / AMAT

740-473180-000 / STD HOST CHUCK ASSY 200MM 51XX 52X / KLA TENCOR CORPORATION

12140-PA24-ALW1 / VAT 4 INCH GATE VALVE / VAT

384 / TEL MK8 CHILL PLATE ASSY CLEAN TRACK MODEL 384 / TOKYO ELECTRON TEL

3ROT188906 / APC VALVE, CKD VEC-VH8-X0331-2 / HITACHI

BX80-070955-14 / LM ARM ROBOT CONTROLLER 2 SBX92301334-4 / SINFONIA - SHINKO

715-460553-002 / LAM LINER, CHAMBER UPPER 1900/A6 / LAM RESEARCH CORPORATION

VM162/172 / PCB 31.152-1010.1 L/00 / PEP

GT1-TS04T / ANALOG INPUT IT, 24V DC / OMRON

1024-849-01 / HEATER JACKET VES1 3WAY V V HZ19 ASM / WATLOW

07512-UA24-AJG1 / VAT SLIT VALVE 300MM / VAT

5136-DNP-VME-4 / 4CHANNEL DEVICENET PRO VME INTERFACE, 0190-05731 / SST/WOODHEAD

0190-76005 / PCB VMEX SPC0005 STEPPER DRIVER INTELLIGENT MOTOR CONTROL / AMAT

1D10-090060-TM / COVER,BELLOWS,TOP / TOKYO ELECTRON TEL

FA0062A / TSK90A FA0062A LD.DRV TYPE: PROBER / TOKYO SEIMITSU

193691B03 / TABLE SUPPORT PLATE 15383823 / SIEMENS

424953-9000-000 / REFLECTOR TURRET MOT. 10 POS FOR AXIO SCAN.Z1 / ZEISS

0190-42550 / ASSY, RF MATCH, 13.56 MHZ, 2.5KW MAX, CV / AMAT

ECLIPSE L150 / MICROSCOPE/ NIKON

OPTIPHOT 88 / MICROSCOPE/ NIKON

90-00334A / WAND CERAMIC 12'' / APPLIED CERAMICS

608593 / MODEL 688CE44 / THOMAS PUMPS

16-308971-00 / ANODE HCM TRIM NO-RUB TWAS PVD / NOVELLUS

782050 SHORT PATH THERMAL DESORPTION SAMPLING OVEN SO-1 SCIENTIFIC INSTRUMENT

409522 / ASSY, WAVEGUIDE ES3 EATON FUSION, MACHINE # RDS320042 / AXCELIS

381 / TEL LOW TEMPERATURE HOT PLATE ASSY, CLEAN TRACK 381 / TOKYO ELECTRON

0041-30673 / ESC LINER, CENTURA CENTRIS DPS2 / APPLIED MATERIAL AMAT

1B80-002821-12 / PCB SD2 ADD ON BOARD 96-24 WITH MEIDEN BOARD / TOKYO ELECTRON

0090-A3600A / SYNETICS POWER CONTROL MODULE AC/DC / APPLIED MATERIAL AMAT