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。

13201 KEYENCE 12" SVGA T FT COLOUR TOUCH PANEL 100-240VAC 50/60HZ 70VA VT3-S12

14782 MKS EXHAUST THROTTLE VALVE 253B-11203

35405 AXCELIS MANIPULATOR CONTROLLER, 3-AXIS 110108120

14791 VEXTA BRUSHLESS DC MOTOR W/ FBLD40C DRIVER FBLM440C-GF

17982 APPLIED MATERIALS CABLE POWER LAMP DRIVER TO 0150-13157

31784 HEIDENHAIN Length Gauge W / Measuring Probe, 383963-02 ST 1278

29557 APPLIED MATERIALS UPPER PLATEN, 20" DIAMETER, 10802200 0040-77083

17963 APPLIED MATERIALS SLIT VLV COVER OUTER DIA 38CM INNER DIA 32CM 0021-41764

9813 H.I.B SYSTEMTECHNIK REFRIGERATED RECIRCULATOR, P/N: 10.004.22 RKH/W 500L

27446 AXCELIS MANIPULATOR CONTROLLER 110118560

5319 APPLIED MATERIALS MALEMA FLOWCTLR MFC-8000-T2105-012-N-001 0190-14384

4693 PMI MOTION TECHNOLOGIES SERVO AMPLIFIER, 175-10-20 PS/AUX 00-88060-204

24758 APPLIED MATERIALS CRYO SUPPLY FLEX HOSE 15A X 3M 0190-25066

32979 US MOTION MOTOR ASSY 220T0059-502USM

2242 ORION DRY PUMP TECO 3-PHASE INDUCTION MTR AEEBKB04R500FU--- KRX3-V-G1 P-1

13392 APPLIED MATERIALS PCB ASSY DNET ANALOG I/O, CDN396, DIP-506-068 0660-00078

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32085 EXACTUS SPECIFICATION ASSY HUB 8 CHANNEL PYRO/EM IFM8-915

30612 WATERS ASSY, VALVE, VENT, 289003741, 001-04946 279000916

M24 MKS MFC, IO TYPE "M" GM50A004102RMM020

6813 MKS MFC, MASS-FLO CONTROLLER 1179A52CR16V20

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C2134 ASYST PCB, LPT CONTROL BOARD W/ 3200-1045-01 DAUGHTER BOARD 3200-1044-01

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28188 APPLIED MATERIALS PNEU MANF, SLIT VLV 8-SLOT 1/4T 4060-00016

15053 APPLIED MATERIALS INSERT LOADLOCK SLITVLV CORROSION RESISTANCE 0040-13306

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32563 TOKYO ELECTRON LIFTER ASSY, PK566-NACM 3M87-025700-11

32086 APPLIED MATERIALS NORGREN PNEUMATIC MANIFOLD ASSY 0190-41814

35264 VARIAN TURBO-V 700HT C.U. CONTROLLER 9699545S008

31186 BECKHOFF AC SERVOMOTOR AM3031-0C01-0000

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34371 HITEK POWER ION PUMP SUPPLY IP100-502-07 A1025900

34397 LAM RESEARCH PCB, PM, CPU  ETHERNET/RF MB 810-34821-002

12573 APPLIED MATERIALS P5000 LOADLOCK LID WAFER TXR CHMBR 0020-31747 0020-32930

10865 APPLIED MATERIALS PCB PERSONALITY, ASSY, MAINFRAME, PRODUCER XP 0100-03205

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13195 RECIF WAFER SORTER/HANDLER CPU CONTROLLER ECUA00029

3816 IMADA SCREW-CAP TESTER 500N.CM DTX2-40B

7556 APPLIED MATERIALS CABLE ASSY, COAXIAL DPS CENTURA 0190-35403

26008 ENTEGRIS FLUOROWARE TEFLON REG,AMAT 3800-01246,0-30 PSI 972-80406-91

C2180 EQUIPE TECHNOLOGIES PCB, PRE-ALIGNER IO CONTROL BOARD 2002-0066

34811 APPLIED MATERIALS VALVE ASSY, MV-5S3 0006996-001

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C2234 ASYST PCB, SERVO AMPLIFIER BOARD 6900-1284-01

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31305 BIHL  WIEDEMANN ASI-3 ETHERCAT GATEWAY, 14963 BWU2162

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32851 ORIENTAL MOTOR VEXTA 5-PHASE DRIVER A6346-043

29891 SANYO DENKI PM DRIVER, TYPE C, 1080-00417 W/ PCB 0100-00537 PMDPC1C3PA0-A1

26343 APPLIED MATERIALS SIGNAL DISTRIBUTION 300MM, GAS PANEL 0100-00583

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13958 SIEMENS SIMATIC 19" FLAT PANEL 6AV7861-3AB00-1A00

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14428 APPLIED MATERIALS MANIFOLD, OUT, RH, 200MM, PRODUCER, SACVD 0040-47028

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15384 LAM RESEARCH PLATE, WAFER CLAMP ATTACHMENT 716-011923-001

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 ACC 1350-01166

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33192 APPLIED MATERIALS BLADE CERAMIC OPEN POCKET 0200-06355

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1958 SMT ULTRASONIC HOMOGENIZER PB95 AC100V 7A 098B065

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13931 APPLIED MATERIALS YAMATAKE TEMPERATURE CONTROLLER 0190-22204

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34261 APPLIED MATERIALS PCB ASSY, SYSTEM EXPANSION BD 0100-20152

15074 APPLIED MATERIALS AC  ASSY 50-HZ, MODEL 8300D 0090-00012

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9762 SHIMADZU TURBO PUMP CABLE, 14.9M 262-78189-15B

20685 PFANNENBERG RACK 1700 INDUSTRIAL CHILLER 42010170008

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24850 LAM RESEARCH PCB, Node Type 26W/LCD  50020R-10 810-013872-108

5718 APPLIED MATERIALS PCB ASSY CARD FOUR CHANNEL 0190-07908

15930 LAM RESEARCH RF GENERATOR CABLE, 2M 684-013298-003

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26436 APPLIED MATERIALS PCB ASSEMBLY, ROTATION DRIVE 0100-02036

3097 ALLEN-BRADLEY A-B QUALITY PANELVIEW 1000 2711-T10C1X

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29854 NOVELLUS 2 CHANNEL TEMP CNTRL, PROCESS CTLR 32TC, 79-10098-00 61-380630-00

19665 APPLIED MATERIALS KIT IVERSAL GAS LINES SACVD-USG 0242-02385

35774 XP POWER POWER SUPPLY, 24VDC/ 8A, AMAT 1140-01684 F4J6

28316 ASML PCB, MC2 AB41 4022.436.2693

28320 ASML PCB ASSY, OCTU/UC 4022.192.9463