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。

30496 LAM RESEARCH PCB, A6 GAS  I/O INTERLOCK 810-494010-001

12163 FESTO MINI SLIDE, P/N: 197896 SLT-16-40-A-CC-B

11895 SCHK PARALLEL GRIPPER PGN 64-1-IS

31561 SMC 5 SLOTS MANIFOLD ASSY W/ 5X VQC1A01N-51 VQC1-LQS204

11108 APPLIED MATERIALS SHIELD UPPER G12 DBL KNEE SST 0020-25730

1051 NOVELLUS Shield, Bottom Back, Grit Blast 17-2912-00

6638 MKS MFC, MASS-FLO CONTROLLER 1479A77313CR1BM

4287 VEXTA BRUSHLESS DC MOTOR W/ GFB5G10 GEAR HEAD FBLM5120W-GFBK5

2749 MITSUBISHI MELSEC PLC CONTROLLER IT A1S61P

18854 ASML CABLE ASSY, 19.5M 4022.472.66742

15904 MKS HV PNEUMATIC VACUUM ANGLED VALVE, FLANGE KF40 L2-40-AK-225-VNVNH

23657 APTECH VLV, DUAL DIA, 3WAY, V BLK AP3550S DUAL V FV4FV4FV4 HPS/2

22843 APPLIED MATERIALS PWBA 24V 1A POWER SUPPLY 0100-90025

25131 FUJI ELECTRIC TOUCH SCREEN PANEL UG330H-SS4

18339 FESTO MOTOR CONTROLLER, P/N: 572986 CMMS-AS-C4-3A-G2

6145 HORIBA-STEC MFC SEC-4400 SEC-4400MC-057

27184 YAMAHA MOTOR STEPPING MOTOR SINGLE AXIS ROBOT SRD05-06UB-300

27022 KEYENCE LASER SENSOR CONTROLLER W/ DISPLAY PANEL LK-GD500 LK-G3001P

24010 EBARA BUSH, LINEAR BEARING, TOP RING SHAFT LOWER C-1382-003-0001

4226 BECKHOFF SERVO AMPLIFIER AX2516-B900

3410 IAI CORPORATION X-SEL CONTROLLER XSEL-J-4-200A-200AB-200A-200A-N1-N1EE-2-2

13515 MODULAR POWER RS 232 LOGIC LEVEL INTERFACES  REMOTE CONTROL MP 3200S/I

5869 OEM 14 VSONC-5S11-VE-F1 MINI VALVE MANIFOLD PN:910-000046-038 PCM-NVS7

10912 SIEMENS SINAMICS SINGLE MOTOR MODULE 6SL3120-1TE15-0AA3

10261 PALL LIFE SCIENCES GELMAN LABORATORY WRIST ACTION SHAKER 4822

16620 APPLIED MATERIALS GAS LINE CHAM 3 WIDE BODY MFC 0050-20941

26774 AXCELIS KIT UPGRADE PRCS CHMBR GROD 100134120

27556 GL SCIENCES HPLC COLUMN,INERTSUSTAIN C18,3µm 2.1 X 100MM 5020-07414

28424 APPLIED MATERIALS VALVE ASSY, PRESSURE SWITCH 300MM HP AXZ 0050-89965

6566 PARKER PORTER MFC 202-AFASVSAA

31195 PRO-FACE TOUCH SCREEN CTLR, PFXST3301SAD, 3580207-01 AST3301-S1-D24

29847 SMC 10-SLOT PNEUMATIC MANIFOLD, AMAT: 4060-00427 VV5Q11-ULB990274

32113 SMC 10-SLOT PNEUMATIC MANIFOLD VV5Q11-ULB990274

C3413 APPLIED MATERIALS PCB ASSY, N2 DRY VAC DIST W/ 0020-70276 0100-76000

T463 MKS BARATRON ETCH MANOMETER, 0.1 TORR E29B-23813

15789 LAM RESEARCH RF GENERATOR CABLE, 27MHZ MATCH, 1M 684-041942-004

15657 APPLIED MATERIALS 5000 ETCH SLIT VALVE HOUSING 0010-70191

31376 SIEMENS POWER SUPPLY, SITOP MODULAR 40, 24VDC 40A 6EP1437-3BA00

18756 NIPPON GEAR TYPE JSCHUT LINEAR ACTUATOR, STROKE 250MM, 35CM RT95223

21530 HERAEUS EXTERNAL TORCH CHAMBER, 101493-06 67260

25736 APPLIED MATERIALS SERVO DRIVE, 9101-1745 DDM-005X-DN-AM

31637 SIEMENS INVERTER DRIVE, MICROMASTER 420, 0.55KW 6SE6420-2AB15-5AA1

C3488 APPLIED MATERIALS KIT, VLV PNEU N/O VERIFLOW 10RA 0240-13768

10796 RFPP RF POWER CONTROLLER 8400003010

10798 RFPP RF POWER CONTROLLER I22050001

26860 AXCELIS LAMP CONTROL CPU MODULE 555031

4710 APPLIED MATERIALS CABLE ASSEMBLY EMO INTERCONNECT,  0150-04722

27616 GE GLASS EXPANSION CONIKAL NEB 2ML/MIN AR30-07-FC2E

27614 GE GLASS EXPANSION CONIKAL U-SERIES NEB AR30-07-UC2E

8438 APPLIED MATERIALS CENTURA DEPOSITION RING 300MM, 0021-19471

19913 ARCOM CTRL SYS THERMISTOR ELECTRODE SNSR TQ503233 TQ503245 TLA 551

28607 OEM ANTI VIBRATING PLATFORM ASSY 92000681972

34551 LAM RESEARCH RING ASSY, ELECTRODE, OUTER SI 716-082039-289

3279 APPLIED MATERIALS HARNESS ASSY PWR INTLK WAFER ORIENTER 0140-76014

11573 ALLEN-BRADLEY COMPACTLOGIX LOGIX 5330 PROCESSOR IT 1769-L30

32805 APPLIED MATERIALS MANIFOLD, 4 VALVE, DIW SUPPLY, MEGASONIC 0190-77365

32419 APPLIED MATERIALS CHILLED PEDESTAL AMP 0090-03805

10776 SIEMENS MICROMASTER 420 6SE6420-2AD25-5CA1

33294 APPLIED MATERIALS BASE PLATFORM ASSY 0041-79708

26894 YASKAWA SERVO DRIVE, SERVOPACK, P/N: BG9-3328 CACR-PR02AA4AH

33297 APPLIED MATERIALS BASE PLATE ASSY 0041-84882

29023 APTECH 6-WAY MANIFOLD VALVE ASSY AP4550SM 2PW TW6 TW6

T448 MKS BARATRON PRESSURE TRANSDUCER, TYPE 128, 10MBAR 128AAX-00010DS

32298 HOKUYO AUTOMATIC PARALLEL OPTICAL DATA TRANSMISSION DMS-HB1-Z40

15786 LAM RESEARCH 2300 FLEX CHAMBER POWER CABLE ASSY, 1M 853-040175-003

2647 SPECTRA LABORATORY GAS ANALYSER VACSCAN PLUS LM2  LM4 LM63

10638 MATTSON RF SOURCE CABLE, 3.5M 263-21681-02

1056 KLA-TENCOR MAGNETIC WEIN CURRENT 645-602300-00XB 740-607105-00

21944 MKS ION SYSTEMS INTERFACE MODULE 5200-IM6T-V3.0

14386 APPLIED MATERIALS PLATE ADAPTER WXP CH. CENTURA 0020-39698

6277 HORIBA-STEC MFC Z500 SEC-Z522MGXN

11843 VEXTA CLOSED LOOP STEP MOTOR,2.69VDC,1.7A,P/N: ASM66AC2-H100 B2677-D2ASM

6924 MKS MFC, MASS-FLO METER, RS-485 SERIES 1479A-21860

6404 MKS MFC MASS-FLO 1179A00151CR1BV

32512 APPLIED MATERIALS CARRIER ASSY, HTR LIFT, PRODUCER SE W/ BELLOW 0040-42958

35368 GAST DIAPHRAGM PUMP DAA-V502-ED

13356 APPLIED MATERIALS SHIELD, AL/TI 8" WAFER 0020-21665

22 HERAEUS NOBLELIGHT DEUTERIUM LAMP POWER SUPPLY PSD-181 PN:45102463 PSD181

3914 APPLIED MATERIALS POWER SUPPLY HF10-729 1140-00394

12531 NOVELLUS WINDOW HATCH COVER 15-129181-00

16332 APPLIED MATERIALS INFICON HTR INLINE VLV VIP040-Z 0190-33740

12524 CTC ANALYTICS PAL SYSTEM INJECTOR HEAD MZ01-00E

C2481 LS MECAPION AC SERVO MOTOR, 3000RPM 600W APM-SC06ADK2

18415 TYSTAR ELECTRONIC GAS CONTROLLER CVD460-196

21256 VERIFLO VLV MNL DIAPH 1/4VCR-F/F ANGLE SST 10R, 3870-02407 955MS5196

24661 TESCOM PRESSURE REGULATOR, 796-480343-002 04-1A1AAGNNZ

21505 TOKYO ELECTRON MANIFOLD ES1D10-102450-11

16610 APPLIED MATERIALS BLANK, SLIT VALVE 0020-35077

4328 VAT GATE VALVE 14036-PE44-0004

4321 VAT GATE VALVE 02010-BA24-1019

1508 VAT BUTTERFLY VALVE CONTROL 61240-PAGC-0002

27938 FUJI ELECTRIC AUTO BREAKER, 3POLE, 350AMP SA403BUL 350

8120 APPLIED MATERIALS KVM SWITCH 4 PC INPUT 3 USER 0190-37616

6637 MKS MFC, MASS-FLO CONTROLLER, 1479A12CR1BM-S 1479A12CR1BMBS

6639 MKS MFC, MASS-FLO CONTROLLER, 1479A21CR1BM-S 1479A21CR1BMBS

8100 APPLIED MATERIALS DOOR LP SLIT VALVE, 200MM WAFFLE-LESS 0021-15694

33739 NEUTRONICS OXYGEN ANALYZER, MODEL 7100 W/ SENSOR 7100E-02 7124BE-N1

C2039 EDDYSTE TRANSMITTER AMPLIFIER E-07

18064 NOVELLUS PLATE, RF, 65*65*10MM 15-032361-00

17199 PRO-FACE INTERFACE PANEL, GP2401H-TC41-24V 3080028-01

3588 NIKON 10X M PLAN MICROSCOPE OBJECTIVE LENS 10/0.21 SLWD 210/0

7586 NOVELLUS 200MM HEATER ASSEMBLY 16-156335-00

12780 METTLER-TOLEDO PRECISION BALANCE SCALE PM1200

30221 AXCELIS 200MM THERMOCHUCK 110165140

23662 APPLIED MATERIALS SHAFT,DUAL SEAL,THROTTLE VALVE, 160MM 0020-31542

13092 NIKON MICROSCOPE OBJECTIVE LENS, ELWD 20X/0.40 LU PLAN

6590 HORIBASTEC SERIES Z700 MFC GAS: H2 1000SCCM AMAT 0190-41105  SEC-Z714AGX

24394 KEYENCE ETHERNET/IP MODULE COMMICATION IT PLC NANO SERIES KV-NC1

23290 APPLIED MATERIALS ROOF TC INNER 0190-35603

24050 VAT SEAL KIT VACUUM, N-5100-275, N-5111-274, 206792 203883

25454 IAI SERVO DRIVE CONTROLLER SCON-CA-150I-DV-0-2

13725 LAM RESEARCH BELLOWS LIFTER ASSEMBLY 839-031766-001

L28098 VERIFLO BLOCK ASSY, 2 VALVE MANIFOLD, 42400679 42400697

15860 ENI HARMONIC FILTER, 3 KW, 13.56 MHZ HF-3000-50

8308 APPLIED MATERIALS COVER, 8" PEDESTAL ADVANCED 101 0020-28937

24164 NOVELLUS HUB, INDEXER, ALTUS 15-01101-00

4802 MOBREY ELECTRICON TRANSMITTER  RECEIVER I2538 / I2537

34792 APPLIED MATERIALS MANIFOLD ASSY, OUTPUT 0042-05773

26491 AXCELIS ATM ROBOT END EFFECTOR REDUCED AREA VESPEL INSR 190005620

34256 APPLIED MATERIALS PCB ASSY, SERIAL/VIDEO INTERCONNECT BD 0100-20133

32064 YASKAWA SERVO AMPLIFIER, SERVOPACK SGDV-2R8A11A

29900 LAM RESEARCH PCBA, NODE TYPE 3, PHASE II, ROHS 810-800256-015

T420 SETRA MODEL 225 PRESSURE TRANSDUCER, -1-1.7BAR 225G1R7BCC411B1

6992 MKS MFC, MASS-FLO METER 179A51CS3BMBV

M30 MKS MFC, MASS-FLO CONTROLLER 1179A51CR1BV-S

M48 HORIBASTEC LIQUID MASS FLOW METER LF-F304M-A-EVD

35604 AXCELIS KIT, PUMP MOD VALVE 1116910

9692 THK LINEAR ACTUATOR, 41 INCH KR45

17996 SMC 32-SLOT MANIFOLD ASSY V114-5FU-X6

7130 EATON POWERWARE TOWER UPS PW9130L700T-XL

20714 SCHNEIDER ELECTRIC TELEMECANIQUE LEXIUM 05 LXM05BD14N4

10179 BANNER MICRO-SCREEN LIGHT CURTAIN EMTR  RCVR SET USR3624YP2 USE3624YP2