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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。

DVT 544C Legend Machine Vision Smart Image Sensor Camera

Leuze Electronic RS3-01 Ver 1.92 RotoScan Area Scanning Distance Sensor

Cognex 540M DVT Legend SmartImage Sensor Camera w/ Tamron 1:3.9 75mm / 40mm Ext

Keyence GT2-P12KL High Accuracy Digital Contact Sensor

Omega OS35 Series OS35-20-5V-250C-24V Infrared Temperature Sensor

STI MS46SR-20-435-Q2-R-NC-FP Mini-Safe 4600 Series Light Safety Curtain Receiver

DVT 544C Legend SmartImage Sensor w/ Tamron 23FM16L 28197 16mm 1:1.4 Lens

Banner SLSE14-450Q8 EZ-Screen Emitter 72361

Balluff BAE SA-OH-039-PP-DV02-SA21 MICROmote Amplifier BAE00U4 244341

Telsonic SK3510 Ultrasonic Sensor

PCB Load & Torque 1102-01A Canister Load Cell 50lb PT02E-10-6P Connector

Leuze Electronic RS3-01 RotoScan Area Scanning Distance Sensor

Allen Bradley 440L-R4J0640YD Ser A Rev B GuardShield Safety Light Curtain

Allen Bradley 440L-T4J0640YD Ser A Rev A GuardShield Safety Light Curtain

Allen Bradley 440L-R4J0640YD Ser A Rev D GuardShield Safety Light Curtain

Transducer Techniques GSO-30 Precision Gram Load Cell 30 Grams

Sumtak MSK-015-1024 Magnetic Encoder DC 5V 100mA CUT CABLE

1  Sumtak MSK-015-1024 Magnetic Encoder DC 5V 100mA CUT CABLE

Keyence IV-G300CA Vision Sensor Head, Wild Field of View

GEMS SENSORS 809042 SURESITE INDICATOR LEVEL 316 SS HOUSING & FLOAT

Sensotec Model 45/7978-02 1000 LBS Range 22-32 VDC Load Cell 869293

Balluff BIS00LW Power/TP 24VDC Read Write Device BIS M-402-045-002-07-34

Omron STI MC47SR-30-450-X Safety Light Curtain Micro Safe MC4700 Series

Everight PGHD-0609-RN LVDT Linear Position Sensor

Keyence DL-PD1 PROFIBUS DP Compatible Communication Unit

Cognex 540M DVT Legend SmartImage Sensor High Speed Camera w/ Tamron 1:3.9 75mm

Banner LE550KC1Q IO-Link 1m Range Laser Displacement Sensor 12-30VDC 97765

GE Pressure Sensor 171-7417 Turbine Throttle Sensor 754E704.GR2

Omron STI MS46-30-350-Q1-X Safety Light Curtain Transmitter Mini Safe 4600

Omron STI MS46SR-30-350-Q1-R-NC-FP Safety Light Curtain Receiver Mini Safe 4600

Omron F3SG-4RE0320-14-L Safety Light Curtain Emitter

Omron F3SG-4RE0320P14-D Safety Light Curtain Receiver

Optek AF13 Stainless Housing & Cable Brew Tank Sensor

Banner Q4XTKLAF600-Q8 IO-Link Rugged Laser Distance Sensor 10-30VDC 801918

Banner A-MX-LPQ20 Mute Arm Kit 805084

Banner SLSE14-300Q8 EZ-SCREEN Safety Light Curtain Emitter 300mm 8-Pin M12 72360

Accu-Coder 802S-30-H-2048-R-HV-1-K-1-SG-N Stainless Steel SS Encoder

SICK TBS-1ASN20506ZM Temperature Sensor 6063897

RAD U-4619 Ultimatic Pneumatic Collision Sensor 86.4mm Di 51.6mm Height 2-6ms

Omron STI MC47-30-450-R Safety Light Curtain Micro Safe MC4700 Receiver

Omron STI MS46SR-20-785-RV Light Curtain Mini Safe 4600 Receiver w/ DeviceNet

Banner PVA100N6EQ Emitter PVA100N6RQ Receiver, Through Beam Sensor Set

Omega OS35 Series Smart Infrared Temperature Sensor

STI MS46-30-1215-X-GM1 Transmitter Mini Safe 4600 Series Light Screen 70111-1043

Cognex 820-10155-2R Series A DM360-HPIL-IR High Power Non Polarized Light

Balluff BIC 2I0-I2A50-M30MI3-SM4A5A Inductive Coupler Remote BIC000E

SMC PF2W720-N03-67 Digital Flow Switch Integrated Sensor 3m Cordset

Perceptron 911-0114 Digital 3 TriCam Surface Sensor Rev. D w/ 310-0790 Term. 120

Sensotec 41/0572-01 Precision Low Profile Load Cell 10 VDC 2000 LBS

Perceptron 911-0114 Digital 3 TriCam Surface Sensor Rev. D

Banner SLSR14-600Q8 EZ-Screen Light Curtain Low Profile Receiver M12

PepperlFuchs IQH1-18GM-V1 Proximity Sensor

Banner A-MX-R-LPQ20 Mute Arm Kit 805092

PepperlFuchs IPH-F61-V1 DENT-I RFID Read/Write Device M12 4-Pin 126054

Leuze Lumiflex CT14-300M/150MS/300S-90-BH3 BH5 Light Curtain Transmitter Receive

Keyence SL-V79F Safety Light Curtain Set SL-V79F-T SL-V79F-R

Keyence GL-S12SH Safety Light Curtain Set. Slim Type 12 Beam Axes

Cognex DMR-100S-00 DataMan 100 Code Reader 808-0009-2R

Balluff BTL2HNJ MicroPulse Linear Position Sensor BTL7-A150-M0153-J-DEXC-TA12

Balluff BTL2HNJ MicroPulse Linear Position Sensor BTL7-A510-M0153-J-DEXC-TA12

BEI Sensors 60011-046 Interface Module BX-5-AD/5-AD/5-AD/5-AD/5

Banner PVD225Q W/6IN Single Piece Part Verification Array 71387

Datalogic Matrix 400 400-010 Compact 2D Reader

SMC PF2W720-N03-67 IFW/PFW Digital Flow Switch Integrated Sensor 3m Cordset

Banner SLSR14-600Q8 EZ-Screen Light Curtain Low Profile Receiver M12 MISSING END

Keyence GS-M53P Advanced Function Safety Interlock Switch 500N Holding Force M12

Balluff BOW B-0404-DU-C-S75 Optical Window Sensor BOW002U

Balluff BTL6-U110-M0400-PF-S4 Magnetostrictive Position Sensor BTL1H5L

Perceptron 916-4114 Digital 3 TriCam Rev. F Digital Contour Sensor

Sick C4MT-01214ABB00AA0 Rev. 1 miniTwin4 Safety Light Curtain 5m Range 1208593

Honeywell 060-8750-04 Load Cell 0-100 LBS 10.0VDC

Sensata BEI Sensors H25D-SS-OMNI-ABZC-28V Omnicoder 3/8 Inch Shaft 2 Channel

ATI FTCON Force/Torque Sensor Controller System

Keyence IL-600 CMOS Multi-Function Analog Laser Sensor

Keyence GL-S12SH-T Safety Light Curtain Transmitter Slim Type 12-Beam Axes

Banner PVD225Q W/6IN Single Piece Part Verification Array 70991

Balluff BNI00CR I/O Module BNI IOL-104-S02-Z012 IO-Link Sensor/Actuator Hub

Siko MSK1000-0414 Magnetic Sensor Incremental Digital Interface Resolution 0.2

Turck FCI-TCD04A4P-AP8X-H1141 In-Line Flow Sensor 4-Pin Class 2 Source 24VDC

Keyence FS-N43P Fiber Optic Sensor Amplifier Unit

Precitec Optronik Meßkopf 2100 3mm Chromatic Confocal Sensor Measuring Head

Keyence GL-S32FH-R Light Curtain Receiver

Swisslog 90307902 Rev D Carrier Sensor 4" PCB w/ Connector Plug and Instructions

Turck RSM RKM 126-20M/S3059 Sensor Cable TPE 1-1/8" M/F 12-Pin 20m U-35633

Keyence GL-R16H Safety Light Curtain GLR Series GL-R16H-R / GL-R16H-T

Rinstrum T620 Rinwire Weight Transmitter Outdoor Module

Omron STI MS46SR-20-870-Q1-R-NC-FP Safety Light Receiver Mini Safe 4600 Receiver

Omron STI MS46-20-785-X-MTL Safety Light CurtaiMTR 43758-0071

Omega OS35 Series OS35-20-5V-250C-12V Infrared Temperature Sensor

Balluff BIS0108 High Frequency Read/Write Head Sensor BIS M-400-072-001-07-S4

Rexroth 3842348783 Rocker Bracket Sensor Stop WI 2

STI 43268-04 4300B Series Minisafe FlexSafe Light Curtain Controller MS4316B

Moritex ML-M3514MP Mega-Pixel CCTV Camera Lenses 35mm Focal Distance 1270684

Rexroth 3842348783 WI 2 Rocker Bracket Sensor Stop

Keyence LR-ZH500CP Self Contained CMOS Laser Sensor 500mm M8

Turck FCI-D04A4P-AP8X-H1141 Class 2 Inline Flow Control Sensor 24VDC

Keyence GL-S20FH-T Transmitter GL-S20FH-R Receiver Light Curtain Set

Siko MSK1000-0193 Incremental Digital Interface 11-M-E1-1.0-I-0.5-0.25

SMC MGPL25-40-M9PW Compact Cylinder Guide 1-3/4" w/ (2) D-M9PW Sensor 3 Wire

Excelitas Technologies VTP1188SH Sensor Diode 925nm Radial PKG OF 250

Norgren EC63DA1090AD3010 Power Clamp W/ PepperlFuchs NBN2F581160S6E8V1 Sensor

Banner SLSE14-600Q8 EZ-Screen Light Curtain Low Profile Emitter M12

Balluff BSP0087 Pressure Sensor w/ Display M12 4-Pin BSP V010-EV002-D00S1B-S4

Cognex In-Sight 1010 Industrial Smart Vision Camera, 800-5749-1 Rev E V 2.11

Baumer FHDK 10P5160/S35A Diffuse Sensor w/ Background Suppression 10151937

GF Signet 3-2850-52-41V Conductivity Sensor

Banner SLSR14-300Q8 EZ-SCREEN Light Curtain Receiver 300mm 8-Pin M12 71221

SGE 113440 ms NoVent II GC Column, Linear, Septum Changeover Unit

Magnescale DK812BFR Digital Sensor MISSING PROBE

Banner SLLR23-280-S Light Curtain Receiver 808918

Banner SLLE23-280-S Light Curtain Emitter 808917

Norgren EC63DA1090AD13510 Power Clamp W/ PepperlFuchs NBN2F581160S6E8V1 Sensor

Gems 192773 Type RFS RF-2500 RotorFlow Sensor

Keyence SL-C48F-T SL-C48F-R Light Curtain Set w/ SL-S2-R SL-S2-T Cables

Rinstrum LSP2-B03-0010 Load Cell, 10KG, 5-15VDC

Novotechnik TLH 450 Linear Transducer 450mm Range

Omron E2EF-QX2D1-M1TGJ Cylinder Proximity Sensor M8 Stainless Housing 2mm Range

Balluff BIS L-409-045-002-07-S4 Interface BIS L Ident IO-Link BIS00E0

Transducer Technologies MLP-10-C0 Load Cell 10lb Cap w/ 4 Wire Cable

Keyence SL-V95F-R Safety Light Curtain Receiver 99mA 24VDC

Sensopart FT 50 C-3-PSL8 Color Sensor w/ 3 Switching Outputs 575-11004

Keyence FS-N43P Fiber Optic Sensor Amplifier Unit w2 FU-A100 Fiber Unit Array

Calibration Technologies GG-NH3-RC Ammonia Replacement Sensor Element

STI MS46-20-435-Q1-X Mini-Safe 4600 Light Safety Curtain Transmitter

Banner SE612LVM5V Photoelectric Sensor 5VDC 27350

Schunk APS-Z80-M8 Inductive Linear Position Sensor 0302070

Omron STI MS4344BR Safety Light Curtain Receiver w/ MS4344BX Transmitter

 Keyence FS-N43P Fiber Optic Sensor Amplifier Unit w2 FU-A100 NO COVER

L-Com TRG610-T6T-10M Sensor Cable M12 Male to RJ45

Banner T18SN6FF50M5V Sensor Barrel Mount Sensor 43094

Baumer FSF 100A1002 Fiber Optic Through Beam Sensor F514