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。

以下链接皆有货

5 Motorola MC10H174P  Dual 4 to 1 Multiplexer

5 Motorola MC10H174P Dual 4 to 1 Multiplexer

5 Motorola MC10H103P LOGIC GATE,TRIPLE 2-INPUT OR,ECL10,DIP,16PIN,

5 Motorola MC10H189P Hex Inverter with Enable  

5 Motorola MC10H189P Hex Inverter with Enable

NSK 7002CTYP4 SUPER PRECISION BEARINGS

MURR ELEKTRONIK 8000-84552-0000000 Passive-distr. injected,M12,

MURR ELEKTRONIK 27986 Passive-distr. injected,M12,5pol,plug. term.

ADVANCED Motion Controls MC1XDZC02 mounting card

APTech 89-89001058 CONV . KIT , SPRING BUTTON   

APTech 89-89001058 CONV . KIT , SPRING BUTTON

Yanmar HC0119 Timer Unit with HC0108 Flameout Delay Timer  

Yanmar HC0119 Timer Unit with HC0108 Flameout Delay Timer

OMRON E2E-X1R5E2 proximity switch

OMRON E2E-X2D1-N proximity switch

STM V62BP/S167 High Resolution Analog Sensor  

STM V62BP/S167 High Resolution Analog Sensor

BANNER Q12AB6FF15 Photoelectric Sensor , Switch

THK SSR-15W SSR1W1SS(GK) LINEAR BEARING BLOCK

MINEBEA SB-35A-102 Magnetic Brake for Motor/slide 12VDC

KEYENCE CORP EM-080 PROXIMITY SENSOR

Keyence ET-305 Proximity Sensor

OMRON E3C-DS5W Photoelectric SWITCH  

KOGANEI Air CYLINDER DAB20X95 W/Sensor ,

BOC Edwards C10501312 NW40 1/4VCR Adaptor

BOC Edwards C10501311 NW40 1/4"VCR Male Adaptor

0 NMB DDR - 1560ZZMTR bearings  

0 NMB DDR - 1560ZZMTR bearings

SUNX EX-24A Photoelectric Sensor

90° Mitred Elbow, NW-50 stainless fitting (A = 2.7)

Omron E32-D24  Fiber optic photo sensor  

Omron E32-D24 Fiber optic photo sensor

OMRON E52-THE5A Temperature sensor

Delta Electronics GFB0812HHG counter rotating blade Fan

Delta Electronics GFB0812HHG counter rotating blade Fan

Omron E3S-AR61 Photoelectric Switch with Reflector

Omron E3S-AR61 Photoelectric Switch with Reflector

YAMATAKE HPF-T003 PHOTOELECTRIC FIBER OPTIC  

HOKUYO YP2-321 PHOTOELECTRIC FIBER OPTIC  

HOKUYO EP1-321 PHOTOELECTRIC FIBER OPTIC  

 SUNX Photo SENSOR EX-13BD With EX13P

SUNX Photo SENSOR EX-13BD With EX13P

Allied Telesis Network adapter AT-AR022 MODULE

D11E Banner 67309 TEACH Mode Programming Sensor

D11E Banner 67310 TEACH Mode Programming Sensor

SIEMENS BUSCONNECTOR 6ES7 972-0BA41-0XA0

Nag Marine TD-107S Smart Cell Oil Content Monitor -  Via  /

Rotork Pakscan P700 Master Station With X2 Saab I/O Relay  9240-002-005 D

Parker D1FPE01BC9NB00 12 Direct Operated Proportional Directional Control Valve

Danfoss CDS303P15KT4E20H2 Compressor Drive Scroll 134F9366

Olympus Iplex MXR Industrial Videoscope IV7630X2

Akron Electric AXJ 6115 Outlet  600V 10A 1 1/2'' NPT Explosion Proof

Sumitomo Heavy Industries RDK-X MRI C Head

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Square D MGA36700 Circuit Breaker 700A 600VAC 3 Pole

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VAF T-SENSE R Torque Measuring System Rotor Cover

Simrad S3009 Navigation Echosounder 000-14215-001 / Consilium E-1

Yamatake Honeywell 80512949 Valve Controller PCB

GE Frac-920 Fraction Collector

Amot Controls 8200C12C5-AA Controller Range - 2065 HZ FSD

Uzushio Electric URMT1B Controller AC100V

FenwalNET 8000-ML Multi-Loop Intelligent Fire Alarm Suppression Control Unit

Metler Toledo Safeline Touch Screen Metal Detector Head

Mettler Toledo Model IND780 Harsh Advanced Weighing Terminal Display

Schenck 5AP920.1505.K11 Operator Interface Panel -   /

ABB Posus 214414 R1A Interface Card

Sam Electronics GE3006G218 PCB DF03-DMC

Eaton CE55NN3 Series A1 Contactor 3 Pole 140A 600V

Ingersoll Rand 382-35563 Brake Cylinder

Deif Delomatic-3 Generator Control System Panel CP-1

Heinzmann DC 2080.2-01-00 Control Unit

Thomas 53001002 Small Liquid Diaphram Pump DC 12V Electric Pump - 0

Braksdale 145R3WC3-Q1 Pressure Control Valve - WPR 3000 Psi

BR PLC Rack Lot Of 13 - BR 9300, DO 9322, DI 4371, PS 2100, DO 4529, AT 4222

Yunan Wah Jet Xijiang Air Siren Machine WDK-2 Fog Horn Automatic Controller

Advantech SPC2140WPTA1701E-T  FullHD Stationary Multi-Touch Panel PC

Infranor SMTBD1/2a / 220/17W-T-BS Servo Drive Amplifier

Siemens 6DS1332-8RR I/O Bus Control Module -

Markem Imaje ENM10104685 X-Series Thermal Transfer Printhead 128MM Assembly

Stemco L190 Replacement Thermostat - Lot Of 15

Honeywell USI-0001 Universal Safety Interface

Square D 9012 GAR-4  Pressure Switch Range 1.5-75 Max Pressure 240

Siemens 6DS1412-8RR K-Loop Controller

Bussmann RK1SK-39 Electronic Fuse Service Kit - Complete Kit

Sick CLV630-6120 Fixed Mount Bar Code Scanner 1041977

Man BW 1142823-0 Terminal  Modification Kit - Spares For Alpha Lubricator

Alfa Laval LPS M3-6 Lamp Power Supply 901214601 Rev 3

Eaton Vickers DG17V-8-8C-10 Directional Control Pilot Valve Pmax 5000 Psi

Whessoe Systems  Controls 200030-7851-2 Opto Coupler Module 500552-7597-1

Hager TJA480 KNX ETS Multi-Unit Shared Server

Fluke E2ML-F2-L-0-0 Endurance High Temperature Infrared Pyrometers 20-48V

Oceanvision OV-7045 4 Way Breakout Cable For Subsea Camera -

Simrad Navico 000-10673-001 25kW  30kW SRT - MOS PCB / SP-973271A4-001

Toastmaster 7610251 Universal Controller

Cegelec Sam Electronics 029.059 270 Pulse Unit 029 059 270

Musasino M-7836B-2 Ballast Tank Level Gauge PCB

Whessoe Systems  Controls 00552-7563-1 Cargo Tank Float Level Gauge PCB Card

Daetwyler AG MDC 7070 V3 Raster Board

Mitsubishi MDS-8SW Motor Operator Control Circuit 800A -  DSN800-SW

Oceanvision 900191-3 Compensator Set For Subsea Underwater Camera

MICO 13-547-570 C-Mount Multiple Disc Brakes - Modular Design

Autronica BZ-20/1S Barrier Unit Complete For BX-10

Altmann DMG22/10 Ze Rk K24562 10K 3600 Degree Precision Multi-Turn Potentiometer

Square D KA36200 Thermal Magnetic Circuit Breaker 600V 3P

Dae Sung Electric YO-100D Amplifier PCB For Salinity Indicator

Delta DPR 4000B-48 Power Rectifier Module

Aqua Signal E-8342550400 Switch And Monitoring Unit

Simrad Navico 000-10671-001 12kW 25kW  30kW SRT Power PCB / SP-973261A3-001

DBI Sala 3400902  Blok Self Retracting Lifeline/ Fall Arrestor 50 Ft

Schneider TSX3722101 / TSXDEZ32D2 / TSXDSZ32R5 Modular Base Controller Modicon

Hirschmann MS20-1600SAAEHH05.0.02 -  X5  MM2-4TX1 Mice Media Modules  Backplane

Krohne Optiwave 6300C Radar Level Meter

Ingersoll Rand D12IN Non-Cycling Refrigerated Air Dryer - 7 CFM - 115V - 2.8A

Smar FY301 Smart Valve Positioner 4-20 mA

ABB ACS560-01-033A-4 Drive 15 KW / 20HP / 3PH - 3AXD50000047649

Tirfor T516 Wire Rope Lever operated Winch 1600 Kgs

Chauvin Arnoux C.A 8310 Power  Harmonics Analyser

Tyco 801AP MX Service Tool 516.800.918 #2

Thermo King MP4000 Controller Relay Board For Reefer Containers

Solo 460-001 Cordless Heat Detector Tester Kit

Simrad Navico 000-10674-001 12kW, 25kW  30kW - SRT Control PCB SP-973281A2-001

Kubler 8.9081.2422.2004 Incremental Encoder Gray 25 Bit 5-30VDC 138mA

Contec AD12-16TA(98) Analog Input PCI Card No.9652

Siemens 6DS1722-8RR Analog Signal Calculation Module

Muller Martini Electronic AG 44010.0015 Controller Module

HBM DF31DN digiCLIP Digital Amplifier

Mazak D70EUU00010 YM21 Safety Relay Unit

Siemens SB Trip Unit SB40TLSIG - 4000A

Siboni Selema AZI004-004.007 DMP2-E-2D04/10  Kit Connector Servo Drive

Viatran 5093BPST25A Union Hammer Pressure Transmitter - 15K PSIS