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。

Mercruiser Mercury V6 V8 EFI MPI Throttle Body Engine Intake Mechanical w/sensor

Simrad Robertson Rudder Angle Indicator f/ Autopilot Instrument System AP45

BG Network QUAD Instrument Display it Speed Depth Temp Brookes and Gatehouse

Suzuki E-TEC I-COMMAND LMF-400 Multi-Fction NMEA2000 Gauge LOWRANCE

Furo RU-5072 Radar MIC Toshiba S-LX5B Limiter Circulator w/ Connector SLX5B

SHIPMATE SIMRAD 8300 RS8300 SOS 8310 Marine VHF HANDSET RS8315 Microphone

NAVMAN AP3100 COMPASS it Autopilot G-PILOT 3100 NORTHSTAR G600 Explorer AP380

NAVMAN AP3100 GYRO it Autopilot G-PILOT 3100 NORTHSTAR G600 Explorer AP380

ComNav Commander P2 Marine Autopilot RUDDER FEEDBACK 14xx 5001 SP-xx 20330008

Garmin GPS 120 XL Marine GPS Navigator GPS 120XL NMEA 0183 Boat Marine PERFECT!

Garmin GPSMAP 162 Marine GPS Navigator Chartplotter Bluechart NMEA0183 w/ Cover

 Garmin GPSMAP 162 Marine GPS Navigator Chartplotter Bluechart NMEA0183 w/ Cover

Garmin GPSMap 296 Aviation Marine Land GPS Navigator Chartplotter 010-00356-51

NEXUS WSI  Wireless Server Interface Garmin gWind WSI-  

NAVICO HP8000 Autopilot Remote Control SIMRAD H8000 CONTROLLER PowerPilot JB8000

ACR 2680 AIS-300 Nauticast Class B Automatic Identification System AIS Transpond

NAVMAN AP3100 COMPASS it f/ Autopilot G-PILOT 3100 NORTHSTAR G600 AP 3100

GARMIN GPSMAP 292 Color Chartplotter w/ S cover, mot- NMEA0183 PERFECT!

Raymarine RC435 Chartplotter Boat Marine Color GPS Navigator f/ Navionics CF

 Raymarine RC435 Chartplotter Boat Marine Color GPS Navigator f/ Navionics CF

NAVMAN AP3100 GYRO it f/ Autopilot G-PILOT 3100 NORTHSTAR G600

ICOM IC-M602 Boat Marine Waterproof DSC VHF Radio Transceiver IC M602

Autohelm 6000 Fluxgate compass f/ Autopilot - Raymarine  !

SHIPMATE RS8300 Marine VHF - SIMRAD Robertson R/T GUARANTEE! with Cable

SILVA NEXUS COMPASS DATA AAJ version 1.04 MM Instrument Display

BG HYDRA 2000 Instrument DISPLAY it Brookes  Gatehouse FFDUD423028

Simrad RC42 Rate Compass SimNet NMEA2000 Heading Sensor 22090237 RC 42

SEIWA Starfish 7 Multifction Chartplotter w/2 C-MAP C-Card slots

Raymarine A50D Chartplotter Soder Fishfinder Sonar SeaTalkNG E62186 A50 D

Raymarine A50 Chartplotter E62184 Marine GPS w/mot SeaTalkNG PERFECT!

Noah Actuation Actuator SA003 240V 1 Phase Motor 0.11A SA 003 30Nm

RADIO OCEAN RO4800 DSC VHF Marine Band Radio 25/1W RO 4800 FURO

Standard Horizon Matrix AIS GX2150 Marine VHF Radio 30W RAM3 GX 2150

Furo RU-5072 Radar MIC Toshiba S-LX5B Limiter Circulator 000-160-864 RU5072

SCANPILOT AH308 Marine Autopilot Rudder Sensor Feedback FB 103 - GUARANTEE!

Nautiradar AP3002 Autopilot Control it AP 3002 Controller PBC and LCD Display

GARMIN GPSMAP 192C Color Chartplotter GPS Navigator NMEA0183 PERFECT! GUARANTEE!

FURO GP-50 MARK 3 GPS Receiver and Navigator GP50 Display it Type GPR-021

BG Fluxgate Compass Sensor for Hercules 2000 PERFECT Cables COMP P2RCE 281015

Raymarine C90W Chartplotter MFD Radar Display Sonar E62111 Core Only

 Raymarine C90W Chartplotter MFD Radar Display Sonar E62111 Core Only

SILVA NEXUS NX Wind Data Instrument Display Wind

TACKTICK Raymarine Wireless Micronet Race Master T070-916 T070 Instrument

Raymarine RC435i Chartplotter, Boat Marine Color GPS  GUARANTEE!

LOWRANCE GLOBALMAP GPS 5300C iGPS 5300 C Chartplotter w/ Scover Pwr Cable

Raymarine ST290 Graphic Instrument Display it E22057 E22062 SeaTalk2 ST 290

Raymarine ST290 DATA Instrument Display it E22056 SeaTalk2 ST 290

Simrad Shipmate RS5920 GPS Navigator f/ Commercial Fishing Boat RS 5920

SIMRAD THS80 Marine VHF Radio Handset f/RS80 THS 80 PC86 RS86

BG Fluxgate Compass Electronic Sensor f/ Hydra Hercules 2000 COMP P2RCE

BG Fluxgate Compass Sensor f/ Hercules 2000 PERFECT Cables P2RCE 061005 w/ Cabl

NAVMAN NORTHSTAR Tracker 5110 Boat Marine Chartplotter GPS Navigator with Cable

Raymarine SeaTalk ST40 DEPTH Display E22044 Transom Mot ThruHull Depth System

Raymarine TackTick T121 Hull Transmitter SUTO MICRONET NMEA SOLAR

Raymarine RAY240E RAY240 VHF Active External Speaker E42002 Marine VHF

Raymarine RAY240E VHF Radio Handset Controller RAY240 E42002 E45010 - GUARANTEE!

FURO LS-6000 LCD SODER 50kHz LS6000 NMEA0183 Echo Fishfinder w Bracket

ICOM IC-GM1500E GMDSS Survival Craft 2-Way MARINE VHF Radio GM1500E Transceiver

Raymarine A57D Chartplotter Soder Fishfinder SeaTalkNG 5.7" LCD A57 D Sonar

NavEye GPS Tracking Device For Boat Marine GSM Security System w/ 2 Remotes

Furo FAP-330 Course Computer FAP-3302 Autopilot Processor for FAP330 System

Furo C-2000 Magnetic Heading Sensor Compass f/ Autopilot RDP-149 VX2 C2000

FURO GP-32 GPS Receiver and Navigator GP32 Display it

SHIPMATE SIMRAD RS8300 Marine VHF Black  8300 BV ATIS f/ RS8310 Handset.

Raymarine ST290 WIND Flush Mot Seatalk Instrument / Head – E22059 - GUARANTEE!

Raymarine ST290 WIND Flush Mot Seatalk Instrument Head it E22059 SeaTalk2

SAILOR SC4000 Iridium Antenna SA4110 f/ Satellite Commicator COBHAM THRANE

JMC GP-200 GPS WAAS Receiver GPS Navigator Japan Marina Co GP200 Commercial Boat

Autohelm Raymarine PCB f/ Autopilot Computer ST7000 7000 3015-010 B Main Board

SIMRAD CX34 MFD Chartplotter Radar Display SIMNET C-MAP CX 34

Garmin GMR40 GMR20 GMR41 GMR21 105-00946-00 Radar Replacement Antenna GMR 40

SHIPMATE SIMRAD 8300 RS8310 SOS Marine VHF Radio HANDSET RS 8300

Raymarine TackTick T121 Hull Transmitter SUTO MICRONET NMEA SOLAR WATERPROOF

FURO GP-50 MARK 3 GPS Receiver and Navigator GP50 Display it Type GPR-21

FURO GP-32 GPS Receiver and Navigator GP32 Display it NMEA0183 WAAS PERFECT!

AUTOHELM ST50 PLUS GPS Instrument Display it Z137 w/ Antenna  !

Raymarine Micronet Remote Control it Display T106-916 TackTick T113 Micro Net

Raymarine Raytheon Pathfinder RL70 7" LCD Radar Display it Chartplotter M92670

Raymarine RC435i Chartplotter Boat Marine Color w/ built in GPS Antenna RC 435 i

Raymarine RAY55E Marine DSC Class D VHF 25W E43037 RAY55 Waterproof GPS DSC NMEA

LOWRANCE GLOBALMAP 5200C Chartplotter Marine GPS Navigator NMEA2000 Network

NAVMAN FISH 4433 PLUS FISHFINDER Sonar Depth Soder Northstar w/ Transducer

Dana Bra 2321 Dana Plus Boat Marine Black Instrument Autopilot Computer

FURO GP-32 GPS Receiver and Navigator GP32 Display it w/ Moting Knobs

Furo LCD LS-6000 Soder Fish Finder XDR NMEA 200kHz LS6000 Sonar NMEA

BG V20 Marine DSC VHF Radio Commication w/bracket NMEA2000

Furo PG-500 Heading Sensor Compass f/ Marine Autopilot System Radar VX2 PG500

Furo NX-500 Navtex Receiver w/ Integrated Printer NX500 NX 500

AUTOHELM ST50 PLUS DEPTH Instrument Display Raymarine Raytheon Z134 ST 50

BG HYDRA HERCULES 2000 DISPLAY FFDUD 213003 HYD 8 Button Instrument FFDU9617307

BG Hercules 2000 Hydra 8 Button FFD Full Fction Display 330-00-032 / X

BG Hercules 2000 Hydra 2 / 8 Button FFD Full Fction Display 330-00-031 / X

Raymarine Smart Pilot TYPE 400 S3 Autopilot Course Computer E12055 SPARES REPAIR

 Raymarine Smart Pilot TYPE 400 S3 Autopilot Course Computer E12055 SPARES REPAIR

Raymarine SmartPilot S2 E12054 Boat Marine Autopilot Course Computer Raytheon

SIMRAD SHIPMATE CE30 Chartploter Sonar 200kHz NMEA0183 Boat Marine

FURO GP-31 GPS Receiver and Navigator GP31 Display it w/ Mot

GARMIN GPSMAP 292 Color Chartplotter w/ S cover Mot NMEA0183 Bluechart

SILVA NEXUS NX2 FLUXGATE COMPASS TRANSDUCER COMNAV - Marine AUTOPILOT 0001081

Raymarine RAY54E Marine E43025 VHF Radio Transceiver RAY 54E w/ Microphone

HUMMINBIRD HELIX 5 Sonar Color Marine Fishfinder Soder w/ Power cable

Volvo Penta Instrumental Tachometer Gauge LCD 873669 VDO N 02 070 001 N02070001

Raymarine ST290 GRAPHIC Instrument Display it E22057 SeaTalk2 ST 290

Garmin VHF 100i Marine VHF Radio Transceiver Two-Way Radio VHF100 100 Waterproof

RAYMARINE RAYTHEON ST60 PLUS WIND Instrument Display it A22012-P A22012

BG h1000 Compass Sensor h1000-CSU Brookes  Gatehouse Fluxgate Compass it

ACR Satellite 2 406 EPIRB Rlb-32 Cat 1 Epiev Hydrostatic Release PLB

RAYTHEON RC520 Chartplotter R32005 Raychart SeaTalk NMEA0183 HSB RC 520 C-MAP

Lowrance RIM 100SP Radar Interface Module f/ Koden MDS-1 Radar 100 SP with cable

Robertson Simrad AP200 Autopilot Control Head it Controller AP 200

BG H3000 GFD WTP Mono Instrument it / Flexible Display it BGH210003 Brookes

BG H3000 GFD WTP Mono Instrument it / Flexible Display it BGH210001

BG Brookes  Gatehouse H1000 Multifction Display it H1000-DSP Instrument

SAILOR Compact GMDSS Alarm it C2149 S.P Radio Denmark 550557 Black PERFECT

Furo PCB SPU-9096E Printed Circuit Board FR-7041 FR-7111 SPU 9096 E

GARMIN GPSMAP 292 Color Chartplotter w/cable -NMEA PERFECT! GUARANTEE 292C

JRC MAF 1422B Magnetron Marine Radar Navigation Japan Raymarine Furo Raytheon

JRC MVS 1422B Marine Radar Magnetron  MVS1422B 5kW 9M80 Furo

SIMRAD Shipmate CE32 TFT Marine GPS Color Chartplotter Sonar Fishfinder CE32D

FURO GP-30 GPS Receiver and Navigator GP30 Marine Boat Navigation DGPS w/knobs

SILVA 18526 COMPASS TRANSDUCER 45 f/ Marine AUTOPILOT 010238 with Manual

KVH Navitron NT920 AHR Compass Repeater Analogue Heading Repeater NT 920

Sleipner SM8918A Receiver  Only f/ Radio Remote 8918 Side-Power Thruster

 LISTINGICOM IC-M58 VHF Marine Transceiver Radio Commication IC M58

ICOM IC-M58 VHF Marine Transceiver Radio Commication IC M58

FURO Marine Radar Antenna it DOME Radome RSB-0060 1621 1621MK2 1622 15"

Antique Maritime Nautical Boat Wooden Ship Wheel 25" 65cm Steering Wheel Wood