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。

SICK Light Button VTE18-3F2740 Cylindrical Photoelectric Sensor 6013476 V18

Balluff Inductive Sensor BES02H1 BES G20ES-PSD10F-S04G-T501

Schmersal Sicherheits-Sensor Bns 260-02/01ZG-ST-L Safety Sensor 101184382

Ifm Inductive Sensor IG-2008-ABOA F 20-250V 350mA IG0006 0 5/16in N

Belden-Lumberg Clutch M23 Rkc 120-137/32 10/12ft Connector Female 934636200

Ve 2x Schmersal Safety Switches 101147145 Safety Switch AZ16-02ZVRK-M16

Hoerbiger Pneumatiksensor Szs7012/10 Sensor Origa PD43661-0010 10bar 145psi

PepperlFuchs Inductive Sensor NJ50-FP-A2-P1 P/N; 027684

Pepperlfuchs Inductive Sensor 553162 3RG4011-7JB00-PF

Brodersen Magnetic Proximity Sensor Rr122310/Sn Switch Blue

SICK Inductive Proximity Sensor IM08-1B5PS-ZC1 6020223 200 Ma

Leuze Light Button Ihrt 46B/4D, 200-S12 Diffuse Sensor 50106554 Holder

Windsor Technologies Temperature Sensor PT100 9 10/12ft GF7111

Omron Photoelectric Sensor E3S-DS30B4 Photoelectric Switch S: 11 13/16in E3S

PepperlFuchs Inductive Sensor NJ1,5-6,5-N-Y40233 106359 Contact

Ifm Reflex Photocell OGP201 Retro-Reflective Sensor Ogp-Hpkg/US100 10-36V Dc

SICK Reflection Light Sensors WT32-B230 Proximity 1007397

SICK Miniature Photoelectric Sensor WT100-2N4439

Leuze Reflex-Lichtschranke PRK46C/4P-M12 Photoelectric Sensor 0 8/12-98 5/

KEYENCE Transmittierendes Fibre-Optic FU-12 Fibre Unit Thrubeam Type

Balluff Inductive Sensor Bes 516-105-SA 5 1-05 905262Cable

SICK Rund-Lichtschranke VL18-3P3640 Cylindrical Photoelectric Sensor 6013599

Ifm Inductive Analogsensor IG6084 Inductive Sensor IGK3008A2PKG/US-104 Io-Link

Allen-Bradley Sensor Photoelectric 42GRR-9001-QD Photoelectric Sensor Receiver

Murrelektronik Mvk E/a , Compact Module 55309 Profibus Dp DIO8 M12 5-polig

Siemens Sinamics Sensor Module 6SL3055-0AA00-5BA1 Sonsor Module SMC20 Version B

Escha Sensor Aktorleitung WAK4-20/P00 Sensor Actuator Cable 8008611 65 7/12ft

Ifm Electronic Reflex Photocell OT5017 Retro-Reflective Sensor Otp-Fpkg/US

Omron Proximity Sensors E2A-M18LS05-M1-B1 Proximity Sensor Module 244368 Unit

Datalogic Photoelectric Sensor CS16K2 M1228 Ø30 No.  Nc

Ifm electronic Inductive Sensor IF5319 Ifa3002bapkg/As-514-tpo

Rexroth Proximity Sensors 0830100457 Switch 12-42 V AC / Dc Max. 0,13 A

Wenglor Reflex Photocell OPT324 Reflex Sensor 18-30V Dc 1 31/32in Reflex Button

Balluff Signalkonverter BAE002M Signal Converter Photoelectric Sensor Bos S-T01

Leuze Reflex-Lichtschranke PRK46C/4P-M12 Photoelectric Sensor 50127012 0 8/

Gräff Temperature Sensor PT100 7134 Probes 7134.1.8.P150

SICK Kompakt-Lichtschranke 1027769 Compact Light Barriers WL27-3P2430 Sensor

Demag Ir Sender/Receiver 489 120 44 Ir Transmitter/Receiver 48912044 Unit

Keyence Näherungsgeber EV-367 6/12ft With Measuring Amplifier Proximity Sensor

Demag Ir Sender/Receiver 487 636 44 Ir Transmitter/Receiver 48763644 Unit

Wenglor Reflex Button OPT87A Reflex Sensors 91230247 for Rollenstauförderer Pnp

Renishaw Button Usage Straight A-5003-2289 Rubinkugel Styli Ruby Ball M2

Balluff Inductive Sensor BES02W9 Indulgent Sensor Bes M08MH1-PSC30B-S04G

Sick Reflector Sensor 1059123 Dematic K0224-70AAA With Holder

Sick Reflection Light Sensors 1068097 Sensor GTB6-P0641S43

Balluff Induktivter Sensor BES 516-105-SA 5 10-30V Dc Inductive Sensor 500469

SICK Rund-Lichtschranke MHTB15-P3367 Photoelectric Sensor MH15 1046535 10-30V Dc

Sick Rund-Lichtschranken 1045469 Circular Photoelectric Sensor ZT2-P5228 Pnp

JUMO Widerstandthermometer 902105/40-397-1003-1-6-250-11-2500/317 Sensor

Datasensor Reflex Photocell S5-5-A4-32 Photoelectric Sensor M12 G5210232

Leuze Reflex-Lichtschranke 50127024 Photoelectric Sensor Prk46c.d/4p-m12

SICK Rund-Lichtschranke VL18-3P3640 6013599 Cylindrical Photoelectric Sensor

Ifm Inductive Sensor IV5003 Inductive Proximity Switch IVE4015-CPKG Pnp

Ifm Capacitive Sensor KIE2015-FB0A/KI0024 KI0024 AC/Dc

KEYENCE Reflective Fibre-Optic FU-219 10/12ft6 Reflective Fibre Unit

SICK Miniatur-Lichtschranken G6 GL6-P4211 Miniature Photoelectric Sensor 1059241

Datalogic Photoelectric Sensor Sender S5-5-G12-02 Sensor Emitter G5210002

Balluff Light Button Bos 2K-PS-RH11-00, 2-S49 Diffuse Sensor BOS0106 Pnp ( No. )

SICK Klein-Lichtschranke WL12L-2B520 Photoelectric Sensor 1018253 W12-2

Sick Optex Light Guide Sensor LL3-DB02 Fibre 5308083 LL3 6 7/12ft Tastersystem

Bernstein Inductive Limit Switch KIB-M18PS/005-KS12 Inductive Sensor 6602905091

SICK Inductive Proximity Sensor IH06-04NPS-VT1 Induct. 7900183

Leuze Inductive Sensor Iss 8 11/32in/4NO-4E0-S12 Switch 50109685

Wenglor Mirror Reflex Barrier LW86PCV3 Retro-Reflex Sensor Universal 10-30V Dc

Pilz Rfid Safety Switches Psen cs4.1p Safety Swich 541160 V1.3 8-pol. M8

Ifm Reflection Light Scanners OGT500 Photo Electric Sensor Ogt-Fpkg/US100 10 36

Festo Pressure Sensor SDE5-D10-C-Q6E-P-M8 542894 0-10 BAR 15-30V Dc

Omron Proximity Sensors TL-X2E1-E1 Proximity Switch 10-35V Dc 300mA Sensor

Omron Cable F39-JGR3K-L Sensor Corduroy Receiver-M12 Plug 1ft

Omron Cable F39-JGR3K-D Sensor Corduroy Receiver-M12 Plug 1ft

Schmersal Magnetic Switch BN 31-10z Magnetic Reed Switch IP67 220V 60VA BN31-10z

Wenglor Reflex Photocell Demag OPT90 Reflex Sensor 91239447 Rexroth 5724970

Balluff Forked Light Barriers BGL0019 Fork Sensor Bgl 30A-001-S49 10 30 5v

Datalogic Electronics Datensensor RC-00 RC 00 G87328 87328 Optical Sensor

BTSR Electronic Sensor IS3F-TS v7.0S2.3 B5 BTSR Patent

SICK Reflection Light Sensors GTB6-P0641S43 Sensor 1068097

Ifm Inductive Sensor IFA3004-BNKG IF5341 Npn S: 0 5/32in 10-55VDC

Ifm Inductive Sensor IGW202 IGK3008UBPKG/ K1/ Sc/US-104 Unit

Ifm Reflex Photocell OF5016 Retro-Reflective Sensor Ofr-Fpkg/US-100 10-36VDC

Leuze Light Button HRTR3B/66-XL-S8 Diffuse Sensor 50107247 Background Masking

SICK Small Light Barriers WT12L-2B550 Small Photoelectric Sensors W12-2 1017904

PepperlFuchs Inductive Sensor NBN2-F581-140S6-E8-V1 904159 Proximity Sensor

PepperlFuchs Gripdicator Sensor NBN2-F581-50S6-E8-V1 904155 Proximity Sensor

Omron Lichtwellenleiterverstärker E3X-A51 Photoelectric Switch 10 - 30 V Dc

Siemens Proximity Sensors 3RG4082-0CC00 Proximity Switch Bero No.  Nc Inductive

Sick WT12-P1121 1010597

Gefran Sensor Cable CT10.012 GFR00045 Verse. 6224049 AWM 300 V 32 10/12ft

Gefran Temperature Sensor F038849 Temperature Sensor TR1 Series

Wenglor Mirror Reflex Barrier XR96PCT2 Retro-Reflex Sensor 10-30 V Dc 200 Ma

PepperlFuchs Inductive Sensor 106359 Sensor NJ1,5-6,5-N-Y 40233 with Cable

SICK Adapter Fgs / deTec4 Adapter 2079349 Adapter Can 7-polig Plug M12 5-polig

Sick Reflection Light Sensor 1015957 Photoelectric Proximity Sensor WT4-2P430

Ifm electronic Capacitive Sensor KI5082 KI-3200NFAKGP2T/US

Leuze Reflex-Lichtschranke PRK46C.D/4P-200-M12 Retro-Reflective Sensor 50127026

Sick Klein-Lichtschranken 1064694 GTB10-P4211 Small Photoelectric Sensors

Ifm electronic Zylindersensor MK5123 Cylinder Sensor Dc Pnp/Npn with Cable

Lumberg Automation Distributor Cable A Sb 4 5/4-328/32 10/12ft Sensor Cable

Wenglor Reflex Photocell OPT76A Reflex Sensor Ident Nr.91071247 Reflex Button

Ifm Reflection Light Scanners O7H204 Diffuse Sensor O7H-HPKG/0 8/12ft / As

Omron Photoelectric Sensor E3S-DS10E41 Photoelectric Switch 6 7/12ft 14-24VDC

Omron Lichtwellenleiterverstärker E3X-A51 Photoelectric Switch 6 7/12ft 10 - 30

SICK Reflection Light Barrier 1005696 WL18-P132 Photoelectric Sensor 10-30 5v

Ifm through Beam Sensor Receiver OJ5067 Oje-Fpkg/Fo / 0 6/12ft / US

Ifm Reflex Photocell O5P201 Retro-Reflective Sensor O5P-HPKG/US100 IP67

Ifm through Beam Sensor Sender OF5021 Sensor Transmitter Ofs-ookg/Us-100

Leuze Beam Sensor 50108878 Photoelectric Sensor Set Iprk 25B/4.3 UMS25.1-D14

Ifm Inductive Analogsensor Imc4026a2pkg / Io / US Analogue Sensor IM5142

Leuze Beam Sensor Ihrt 46/4D-800, 300-S12 Reflex Light Barrier 50080977

Omron Inductive Sensor E2A-M12KN08-WP-D1 Proximity 6 7/12ft

Ifm Inductive Sensor IFS205 IFB3007-BPKG/US-341 2/12ft12 X 1 Dc Pnp

Lumberg Sensor Cable With Connector 21198 251/810 Pure E48408 4 Ladder

Banner Optical Sensor Osbd Photoelectric Sensor Head 27086 11 13/16in

0 811 404 811 BOSCH PROPORTIONAL Servo Solenoid Valve REMAN

V61R511DC213AA NORGREN SOLENOID DIRECTIONAL CONTROL VALVE PAIR

S311AF02N9CF5 ITT SOLENOID VALVE 120V 2 WAY 3/8" NPT

ITT General Controls K3A542 Magnetic Gas Solenoid Valve 120v 1/2"

Parker 324807-701 Liquid-Line Solenoid Valve

AVENTICS L23JJ452OG00000 SOLENOID VALVE

1PCS  FOR EMERSON Solenoid Valve Coil ASC 24V/50-60Hz PCN057341

2 product ratings- 1PCS  FOR EMERSON Solenoid Valve Coil ASC 24V/50-60Hz PCN057341

12-1646-01 Water Inlet Solenoid Valve Scotsman Ice Machine Maker

PROMINENT VAMC07024PVT000S00 DOSING SOLENOID PUMP  

REXROTH 389239/5 SOLENOID VALVE

BOSCH 081WV10P1V1004KA115/60 D51 SOLENOID HYDRAULIC VALVE FACTORY SEALED

PARKER D61VW008C6NTCF4 CONTROL SOLENOID VALVE

PARKER L6658922153 SOLENOID VALVE

VICKERS CG5-060A-C-W-B-70 SOLENOID CONTROLLED RELIEF VALVE

FESTO MC-5/4-1/4 SOLENOID VALVE  

VICKERS CG510AFWB81S1 SOLENOID CONTROLLED RELIEF VALVE

NUMATICS 33DSP400O000030 SOLENOID VALVE

REXROTH 4WE6J61/EW110N9DA SOLENOID VALVE

FESTO JMC-4-1/4 PNEUMATIC SOLENOID VALVE (AS PICTURED)