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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。

Banner PVD225Q Single Piece Verification Array 3-Pin M8 2ft Length

Turck BC5-Q08-AP6X2-0.5-PSG3M/S250 Capacitive Proximity Sensor S2620093

Schmersal RSS36-I1-D-R-ST RFID Safety Sensor RSS36 101213954

Balluff BIS L-409-045-002-07-S4 BIS00E0 Interface IO-Link 18mm Dia Sensor

Keyence SL-V23F-T Safety Light Curtain Transmitter w/ SL-VPT3PM-T Transmit Cable

Balluff BOW001J Optical Window Sensor BOW A-0808-PS-C-S49

ifm DTI515 Read/Write Head RFID DTRHF KQRWIOUS03

Keyence FS-N40 Digital Fiber Optic Sensor Zero Line Expansion Unit 10-30VDC

Turck BI1-EG04-AP6X Inductive Sensor M 0.5 1619327

Keyence LR-ZB250P CMOS Self Contained Laser Sensor, 20" Cable

1  Keyence LR-ZB250P CMOS Self Contained Laser Sensor, 20" Cable

Ifm GG851S Fail-Safe Inductive Proximity Sensor GIGA4005B2PO/SIL2/US

Turck FCS-M18-LIX Flow Monitoring Immersion Sensor w/ Processor 6870707

Keyence GL-S32FH-T Light Curtain Transmitter

Keyence LR-ZB250P Self Contained Laser Sensor w/ Cable CMOS Rectangular

1  Keyence LR-ZB250P Self Contained Laser Sensor w/ Cable CMOS Rectangular

Wenglor YM24PAH2ABF Contrast Sensor 150mm Range 10-30VDC

Keyence SL-C24F-T Transmitter and SL-C24F-R Receiver Light Curtain Set w/Cables

Kistler 9712A5 Load Cell Force Sensor

Pheonix Contact SACB-8/16-L-5, PUR 8 Sensor / Actuator Box 16 95 19 7

IFM LDH292 Air Humidity Sensor IO Link

Banner T30GRYPQPMA EZ-LIGHT: 3-Color General Purpose Indicator 12970

Banner SE612LVM5V Photoelectric Sensor 5VDC 27350

SMC ZSE20CF-V-P-N02L Digital Vacuum Sensor

STI 42687-0480 Minisafe MS4300 Series MS4348BX

Balluff BAW M12MG2-UAC20B-BP00,2-GS04 Proximity Sensor 122009

IFM PA9021 Pressure Transmitter w/ Measuring Cell PA-250-SBR14-B-DVG/US/V

ATI Industrial Automation Stand-Alone Controller Force/Torque Sensor

Sick LFP0300-A4NMB TDR Level Sensor 1057074

IMI Norgren L.00000.104.07.00 Cylinder Power Clamp & Peperl Fuchs GripLok Sensor

Sensotec WD/C546-01 Amplified Transducer 9-28VDC

Allen Bradley 42GTF-9103-QD Ser A Photoelectric Sensor Lrg Aperture Fiber Optic

Turck BI20R-Q14-AP6X2 Inductive Ring Sensor 1406300

Banner SLPR14-270P8 EZ-SCREEN Low Profile Receiver 83552

ifm PN5204 Pressure Sensor w/ Display PN-010-RBN14-HFPKG/US/ /V

Sick WTR2-P511S20A02 Photoelectric Sensor, Zone Control, 7029978

Leuze Lumiflex CT14-600-SS Safety Light Curtain Transmitter Stainless 561106

Keyence LR-ZB250P CMOS Self Contained Laser Sensor, 40" Cable

1  Keyence LR-ZB250P CMOS Self Contained Laser Sensor, 40" Cable

PepperlFuchs NEN10-12GM50-E0-V1 Inductive Sensor 231721

Scotsman 11-0614-02 Water Dispenser Sensor for 56FJ92

Norgren Power Clamp w/ Pepperl  Fuchs NBN2-F581-16OS6-E8-V1 906154S Sensor

Banner Q12AP6FF50Q3 Miniature Self Contained Sensor 76163

Sick WTR2-P511S20A02 Photoelectric Sensor, Zone Control 7029978

STI 70133-1082 4700 Series Minisafe Light Curtain MS47SR-20-900-X

Balluff BCS M12T4D-XXS40C-EP02-GZ01-002 Capacitive Sensor Head BCS0018 2M PUR

SICK ZT4-P5215S01 Cylindrical Photoelectric Z-Sensor 1044281

Keyence AP-33K Two-Color Digital Display Pressure Sensor 12-24VDC

Keyence GT2-72CP High-Accuracy Digital Contact Sensor Amplifier Unit

Tri-Tronics APSD Smarteye Plus Sensor

Keyence LR-ZB250P CMOS Self Contained Laser Sensor, 12" Cable

1  Keyence LR-ZB250P CMOS Self Contained Laser Sensor, 12" Cable

Banner Engineering D10IPPFPQ Fiber Optic Sensor 62389

Turck RKM 47-15M/S3059 Actuator and Sensor 4-Pin Cable 15M 100004944

Promess FES-M-41 Color Sensor 90662311400 FESM41

Omron E32M-LS64H 200mm Range Pre-Wired Photoelectric Sensor NPN

SMC CDLADN50TN-450-D Double Acting Single Rod Cylinder w/ Lock CUT SENSOR

Eltrotec Elektro-GmbH FES-M-41 Farberkennungssensor Sensor Meter, Promess

SMC MHY2-20D Angular Pneumatic Slide With Grippers and Sensors

1  SMC MHY2-20D Angular Pneumatic Slide With Grippers and Sensors

Allen Bradley 871D-MW2GP200B-D4 Ser. A WorldClamp Inductive Proximity Sensor

Turck BC10-Q14-AP4X2 Capacitive Proximity Switch Sensor 10~65VDC 2530001

Banner DF-G1-PS-Q5 Dual Display Fiber Optic Sensor Amplifier PNP M12 4-Pin 19358

ABB 3HNE-06285-1 MCC-01 SIGNAL MEASURING MODULE

Balluff BES-516-217-E5-E-S21 Inductive Standard Sensor BES02AA

Banner PIAT43TMB5MTA Heavy Duty Plastic Fiber Optics 1m Length 73306

Keyence GL-S08FH Safety Light Curtain Flat Type 8-Beam GL-S08FH-R / GL-S08FH-T

Keyence PJ-V20R/21R Light Curtain Receiver & Transmitter PJ-V20T/21T

Balluff BES 516-325-SA56-03 Inductive Sensor NO 12x60mm BES035J

Cognex 808-0009-1R Rev. A Barcode Reader DMR-100Q-00 CHECK CABLE

Norgren EC63D-A-1-0-90A-D30-1-0 L.00000.104.32.00 Cylinder w/ Power Clamp/Sensor

Coti Global CG-60040 Single Ended Load Cell 150lbs Capacity Stainless Steel

Keyence LR-ZB250P Self Contained Laser Sensor, 8" Cable

1  Keyence LR-ZB250P Self Contained Laser Sensor, 8" Cable

Keyence FS-N13P Fiber Optic Sensor Amplifier

PepperlFuchs VAA-4EA-G6-ZE/E2 052123S Sensor Interface Module

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

Balluff BCS M12T4D-XXS40C-EP02-GZ01-002 Capacitive Sensor Head BCS0018

Balluff BAE00KH Amplifier for Capacitive Sensor Head BAE SA-CS-025-YP-BP02

Cognex DVT Legend 510MR Smart Image Sensor

Keyence PZ-M62P Square Retro-Reflective Sensor M8 Connector Type

Keyence AP-V42AWP Digital Pressure Sensor Amplifier Expansion Unit, PNP

Johnson Controls HLC-1000-1 Metasys Humidity High Limit Control w/ Temp Sensor

Balluff BMF00JJ Magnetic Field Sensor BMF 203K-H-PI-C-A8-S4-00,3

Novotechnik LWH 225 024309 Position Transducer 225mm Range

Omron E3S-AD68 Diffuse Photoelectric Vertical Sensor On Connector 100mm NPN

Omron STI MS47SR-20-900-X Safety Light Curtain Mini Safe 4700 Transmitter

Balluff BUS004K Ultrasonic Sensors w/ Analog Output BUS R06K1-XA-02/015-S75G

Schunk IN 30K-S-M8-PNP Inductive Proximity Switch 3mm Dia. PNP 1001272

Banner OTBVP6LQD Momentary Optical Touch Button Sensor 34997

Balluff BES-M08EG1-PSC15A-S04G-W Proximity Sensor 120168

Banner Q12AP6FF30Q3 Miniature Self-Contained Sensor 74956

Banner Engineering PIAT43TMB5MA Fiber Sensor Cable 73306 MISSING HARDWARE

Keyence OP-87899 Polarized Light Filter Attachment

Turck BC3-M12-AP6X Capacitive Sensor 2601000

Invensys Siebe T150-1041 Temperature Transmitter -40 to 160°F Range

IFM TN7511 Temperature Sensor w/ Display TN-045KCBD18-QFPKG/US/

Cognex DM50Q Dataman Barcode Scanner Reader, 821-0096-1R M, 825-0403-1R E

Turck Bi8-EM18-AP45XLD/S100 Inductive Proximity Sensor 1584015

Balluff BCS0055 Flush Capacitive Proximity Sensor BCS R08RR01-PSM80C-EP00,2-GS49

Schunk IN 50/S-M12 Inductive Proximity Switch Cylindrical Sensor 1mm 301575

Banner T30UXDB Temp Compensation Ultrasonic Proximity Sensor Teach-mode 79998

Tracor Westronics 26918F-60 Servo Amplifier

Keyence SL-V31F-R Light Safety Curtain Receiver

PHD 74209-31 Gripper Jaw Position Sensor Kit

Banner K70ANT2GXDQ EZ-LIGHT: 1-Color Touch Sensor Indicator 70mm 96859

ROI-XMA LOOP POWERED 4-20mA SENSOR TRANSMITTER ROI-10KXMA075C S-N: 10X036K6

ton Research Labs 7103-10-100 10-Pin Industrial Camera Sensor Cable Cordset

Turck BI3-M08-AP6X-V1131 Inductive Sensor 4602911

Keyence PR-G51C3PD Throughbeam Sensor Set, Transmitter & Receiver M8, 3-Pin

Baumer IFFM 06P15A1/O1L Inductive Sensor w/ Cable

Turck BCF5-S18-AN4X Capacitive Sensor 10-65VDC 2503012

Keyence SL-VS3 Light Curtain Cable Set, SL-VS3-T Transmitter SL-VS3-R Receiver

Balluff SIE Sensorik BCS M12T4G1-NOM80G-EP02 / BCS005K Capacitive Prox Sensor

Turck RSM 40-30M Actuator And Sensor Cordset 7/8" Male 4-Pin To Leads U2084-34

PepperlFuchs IQT1-F61-IO-V1 RFID Read/Write Device

AS Accu-Sort 22 Series 2 Laser Bar Code Scanner / Reader

Banner VSM-2M5APD50-Q7 Proximity Sensor, Barrel, Diffuse

Balluff BCS R08RRE-PSM80C-EP00,3-GS75 Capacitive Proximity Switch Sensor BCS012T

Barton 0351-0001B Sensor Bellows For Liquid Level Systems 3-3/4" Di 8-1/4" L

Omron STI MS4344BX Safety Light Curtain Mini Safe MS430MTR 44

ifm LK3122 Electronic Level Sensor LK0264B-B-00KLPKG/US

Pepperl & Fuchs NCB40-FP-A2-P1 Inductive Sensor Module 908802

Enercon SuperSeal Deluxe LM 3779-03 Sensor Bar

Banner LX Series Small Flat Object Detection Light Curtain Set

IFM LR0000B-BR34AMPKG/US Continuous Level Sensor LR3000

Shinagawa Densen SSX 2001 19 Pin Cable & SSX 2001 4 Pin Cable

Sick IM18-10BPS-VC1 Inductive Proximity Sensor 6068720

SIE Sensorik SK1-3-M8-PnbS-VA/PTFE Capacitive Sensor

ROI-XMA LOOP POWERED 4-20mA SENSOR TRANSMITTER ROI-10KXMA075C S-N: 10X036K4