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。

17693 FUJIKIN VLV MONBLK, O.P. 4~6KGF/CM2G, P/N: 036782 FBSDV-6.35-2B3-316LP-BGC

11437 PANASONIC 7 SLOTS AFP25007 PLC W/NAIS PSA2,FP2-C2,X64D2,XY64D7P FP2-BP07

3259 APPLIED MATERIALS COVER, SERIPLEX UTIMA HDP-CVD 0040-01354

8344 SCHUMACHER GAS FLOW CONTROL  1491-0057

6403 IT MFC METAL SEAL 1662 UFC-1662

12726 SIEMENS SIMATIC S5 CP524 COMMS PROCESSOR MODULE 6ES5524-3UA13

12952 M HEAN IDMTL OVER CURRENT  EARTH FAULT RELAY REA200E

12769 FISHER SCIENTIFIC ISOTEMP DIGITAL-CONTROL WATER BATH, P/N: 15-462-11 210

33184 MKS MANUAL ANGLE VALVE, 3870-01352 UHV-40-ACC-EAVM

25952 SVG NW100 VACUUM PIPE LINE 2 PORTS 108359-16

6939 HORIBASTEC MFC, SEC-7330 SEC-7330M

32715 GRANVILLE-PHILLIPS CONVECTRON GAUGE SENSOR W/ CABLES CONNECTIONS 275071

6151 HORIBA-STEC MFC SEC-Z300 SEC-Z312M

32037 SMC REGULATOR VALVE, 0.5MPA LVR40-Z13

28957 MITSUBISHI SERVO AMPLIFIER, MELSERVO-J4, 400W MR-J4-40A-NB

31355 SIEMENS PS, AS-I/F, AS-I POWER, 30V 5A 3RX9 502-0BA00

23461 LEVITRONIX PUMP HEAD, CP3.5, PFA HOUSING, IMPELLER 100-90206

30217 APPLIED MATERIALS PEDESTAL, 8" ADV 0020-28987

34683 APPLIED MATERIALS 3-WAY 2-VALVE MANIFOLD ASSY 0051-13836

32411 BROOKS AUTOMATION PTI SENTRY EXHAUST FLOW CONTROLLER, 12042 TIM-100

M45 BROOKS MFC, GF SERIES GF125CXXC

M37 HORIBASTEC MFC, Z500 SERIES, SURFACE MOT SEF-Z522MGXN

6333 HORIBA-STEC MFC SEC-7330 SEC-7330M

6899 HORIBASTEC MFC, SEC-7440, SEC-7440MC-UC SEC-7440M

6897 HORIBASTEC MFC, SEC-7440 SEC-7440M

31431 EATON CUTLER HAMMER LG VARI-DEPTH ROTARY HANDLE 12" SHAFT/RED KLHMVD12R

17021 APPLIED MATERIALS PLATE, WEIGHT DISPERSION, SST AND NBR 0021-39670

3502 KURABO CHEMICALYZER-MINI, KE-200P, E03-00380 KCM-21-A

23607 CASCADE MICROTECH CBL ASSY, PROBE ARM DPP2XX/DPP3XX/COAX/BNC 100561

26622 LAM RESEARCH 3-WAY VALVE ASSY 839-010975-002

19506 FSI CTC TOUCH SCREEN INDUSTRIAL COMPUTER W/O SCREEN P21-012DR

34578 LAM RESEARCH 4-WAY MANIFOLD VALVE ASSY, 3 VALVES 839-034095-003

14462 ACOPIAN REGULATED DC POWER SUPPLY W12MT29

9537 QUICKS FLASH GENERATOR QS 24

33658 VARIAN TURBO-V 70D MACRO TORR PUMP 969-9361

14178 APPLIED MATERIALS CONTROLLER. A/C WINDOW 0090-00045

34845 ASML INTERFERENCE FILTER HT 4022.481.3161.1

30346 APPLIED MATERIALS RF COAXIAL CABLE, LENGTH: 16.5M 0150-70038

16542 SWAGELOK DIAPHRAGM  2-VALVE 3-PORT MONOBLOCK VALVE 6LVV-PH1V111P-K2

18871 ASML CABLE ASSY, SHB-MDC-X41, ICP2-X103, 9.5M 4022.472.81983

8398 VARIAN ROBOT ASSY E17263060

6613 BROOKS MFC GF SERIES, 1000SCCM, P/N: GF125C-871269 GF125C

22315 VARIAN 90 TOP INLET E17302410

13783 APPLIED MATERIALS CORD PWR 18AWG 115VAC 24" 0620-02279

12258 FUJIKIN VLV MONBLK, O.P. 0.39-0.59MPA, TYPE N.C. FBSDV-6.35-2B3-BGC

24498 VAT VACUUM ANGLE VALVE 26428-KA01-0001

12398 VICTOREEN SURVEY METER W/ COTER 490-50 SPEAKER 491

2441 APPLIED MATERIALS ASSY RF FILTER  CERAMIC HEATER 0010-34855 0090-04947

12041 FESTO MINI SLIDE IT, P/N: 170561 SLT-16-20-P-A

32937 ITECH GUIDE RING, GRID 300MM STRIP 303-12432-00

6947 MKS MFC, MASS-FLO CONTROLLER W/ 6LVV-DP6901-C 2179A51CR1BV

32835 VERIFLO WELDMENT, 4-VALVE MANIFOLD 945AOPLPNCS5297

6881 MKS MFC W/ GLFPF3000MFC9 1159B-00020RV-SPCAL

6625 BROOKS MFC GF SERIES, GF125C-896798 GF125CXXC

7587 APPLIED MATERIALS BRACKET, PILLOW BLOCK SOURCE, ENDURA 0020-20156

24034 SMC MAGNET COUPLED RODLESS CYLINDER CY1SG6-200BZ-M9NV

25431 PARKER BRUSHLESS SERVO MOTOR SMB823003814S1I642

C0403 PRO-FACE TOUCH SCREEN HMI, 3180021-02 GP2600-TC11

C2453 FESTO VALVE TERMINAL, 18200, 10P-10-8A-MP-N-B-4J4CU CPV10-VI

10464 NSK ESA SERVO DRIVER ESA-Y3060A23-11

13168 HIWIN 3Ø AC SERVO MOTOR, TORQUE 1.27NM, 3000R/MIN FRLS402B506A

19890 MKS LDM-D LOCAL PRESSURE DISPLAY MODULES LDM-B12PA2CC1

33991 WATERS ACTUATOR ASSY, M21NRXA-LSN-M1-03 W/ ENCODER HEDL-5605 289000527

4651 VITAL VISION LED INTENSITY CONTROL IT W/ REFLECTOR V2FV-50-W V2P5A-1

34281 LAM RESEARCH 6 WAY VALVE ASSY W/ 3X DIAPHRAGM VALVE 839-034096-101

34280 LAM RESEARCH 4 WAY VALVE ASSY W/ 3X DIAPHRAGM VALVE 839-034095-101

31164 SIEMENS SITPOP MODULAR POWER SUPPLY 6EP1436-3BA00

33310 MITSUBISHI DIGITAL MONOCHROME PRINTER P91DW

23519 EBARA SUPPORT, DUCT C-3202-298-0001

24643 APPLIED MATERIALS SLEEVE, SLIP FIT 857/858 422-57-022

30380 APPLIED MATERIALS CABLE ASSY, REM ANALOG 50, LENGTH: 15M 0150-09107

921 PACIFIC SCIENTIFIC BRUSHLESS SERVOMOTOR R36SSNA-R2-NS-NV-07

14475 POWER AUTOMATION SINGLE PHASE ELEC MULTIFCTION ACCUPOWER EVS-100

25823 LAM RESEARCH 5 WAY VALVE ASSY W/ 3X DIAPHRAGM VALVE 839-034096-001

7423 THK 33 INCH LINEAR ACTUATOR KR

7475 APPLIED MATERIALS COAX CABLE, DXZ COTERMATCH, 2.7M 0150-76322

25988 APPLIED MATERIALS WELDMENT, HEATER COOLING HUB, PRODUCER 0040-38661

10872 HARMONIC DRIVE SERVO ACTUATOR 3557.N0148 RH-11B-3001-B-HEDS-5500-SP

32248 TAIYO POWER SUPPLY, 40V, 6A XE180-40-1365

25780 FUJIKIN 3-WAY MANIFOLD VALVE, 0.34~0.49MPA, FBDV-6.35-2B3-NL-ADY-UP 021992

20475 APPLIED MATERIALS PLATE, PERFORATED OXIDE 200MM TEOS 0020-10117

23851 AXCELIS ROBOT BATTERY KIT BR942766

520 XPIQ XP POWER SUPPLY, 10003661 100-120/200-240VAC 47-63HZ 9/4A F6B9A5AGA

2382 NOVELLUS CABLE ASSY, 75FT 03-279885-00

27009 CTI-CRYOGENICS CABLE ASSY, ON-BOARD CRYO PUMP POWER CABLE, 15M 8112463G500

34833 FESTO DISPLACEMENT ENCODER MLO-POT-0150-LWG

35077 APPLIED MATERIALS MANIFOLD VALVE, 6STATION, 0-0.5MPA 4060-00481

35027 HIWIN BALL SCREW, LENGTH: 21CM S1704WA-1

31863 HAM-LET ULTRA CLEAN DIAPHRAGM VALVES UCV SERIES HM20-4VKLQ-M4

6955 HORIBASTEC MFC, VCR MALE, Z500 SERIES SEF-Z521XN

M47 HORIBASTEC LIQUID MASS FLOW METER LF-F40M-A-EVD-107

31795 ENGLER FLOAT SWITCH, G106493 NAMW-10.345

31495 SCHNEIDER MDRIVE 23, STEPPER MOTOR SINGLE MOTOR STACK MDM1PSD23A7

33829 IFM ELEC PR SNSR W/ DISPLAY, PN-1-1BRBR14-QFRKG/US/ PN7009

C1887 LAM RESEARCH PLATE, UPPER BAFFLE, 6" 715-028626-002

C1888 LAM RESEARCH PLATE, LWR BFL, 6", MED EDGE 715-028627-002

32673 FUJIKIN DIA BLK VLVS, TYPE N.C, 0.39~0.59MPA FBSDV-6.35-2B3-BGC#A

2264 NOVELLUS CABLE ASSY 03-111157-00

14286 KULICKE  SOFFA EFO  ASSY FOR WIRE BONDER N08002-1120-000-22

4035 KURABO CHEMICALYZER KD500, H03-548 KCM-21-A

31462 NOR-CAL MANUAL RIGHT ANGLE VACUUM VALVE ESV-0752-NWB

11706 PALL TRINITY MICRO FILTER GLFF6000VMM6/8

32996 RIGAKU MAGNETIC FERO FLUID SEAL 410TS

6828 HORIBA-STEC MFC Z500 SEC-Z533MGX

23620 PARKER CABLE ASSY, 20M RESOLVER CABLE F671616B-65

35008 YASKAWA SERVO DRIVE, SERVOPACK SGD7S-5R5AA0AY0806B

10766 PARKER COMPUMOTOR SERVO DRIVE CP*OEM670X-10871

10806 APPLIED MATERIALS ENDURA ROBOT BLADE 0020-26961

15000 MITSUBISHI AC SERVO MOTOR, 3AC 122V 2.8A 400W HC-MFS43BD

B122 BERTAN POWER SUPPLY HIGH VOLTAGE 2854-22

10369 APPLIED MATERIALS BRACKET, RIGHT, FINAL LINES, PRODUCER S 0040-42934

18198 APPLIED MATERIALS PEDESTAL SST 8" 101 COVERAGE 0020-24913

18838 S2AUTOMATION Z-AXIS MOTOR/GEAR BRUSH MOTOR 7KSTKZGBMTR03

20429 HP PROCURVE SWITCH 4104GL W/ J4862B, J4864A  J4839A, RSVLC-0201 J4887A

26522 AXCELIS GAS JUMPER, MALE 1/4 FLOW 1639050

26532 AXCELIS CABLE, ELECTRON SHWR AC PWR, 155CM 1638880

6748 MYKROLIS MFC, INTELLIFLOW II DSTWN100

T334 MKS LOADLOCK TRANSDUCER, 901P SERIES 901P-11130-0096

15491 WAGO ETHERNET CONTROLLER W/ 750-402, 750-504, 750-600 MODULE 750-842

27602 GE GLASS EXPANSION STANDRAD QUARTZ TORCH, 1.5MM INJECTOR 30-808-1179

27916 APPLIED MATERIALS BLOCKER, DD3328, SACVD, 300MM PRODUCER 0021-51937

18866 ASML CABLE ASSY, WSRC-FAN2-X1, SCSU-X15, 5.5M 4022.472.67581

25822 LAM RESEARCH 4 WAY VALVE ASSY W/ 3X DIAPHRAGM VALVE 839-034095-001

6800 MILLIPORE MFC 2900 SERIES FC-2902MEP5-T-4V

19859 GENERAL ELECTRIC AC MOTOR W/ TEEL VANE PUMP, 4805 5KH32GN5588X

17061 SARTORIUS MICROSART MINI VACUUM PUMP 230 V 50 16694-2-50-06

18861 ASML CABLE ASSY, 8M 4022.472.14863

2763 CTI SS FLEXIBLE HOSE, 1/2" FITTING, 20FT, AMAT 3400-01109 8081608G018

16510 SMC 9 SLOTS PNEU MANF W SOLENOID VLV 02-146936-00 17-132458-00 US4058-2

164 LEYBOLD INFICON QUADRAPOLE RGA SENSOR PROBE H100M

21053 ACECO TELPOLY CHMBR BASE CFA ANODIZED S33-1914A-R

6246 AERA MFC FC-7810CU