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

Radar

 ListingE2V Technologie EEV MG5424 GEN3 Magnetron Marine Radar Freq 9410 ± 30 MHz

 ListingMG5424 E2V Technologie EEV GEN3 Magnetron Marine Radar Freq 9410 ± 30 MHz

 ListingE2V Technologie EEV MG5424 GEN3 Marine Radar Freq 9410 ± 30 MHz

Noechnik IP6515A502 IP6515 A502 Codificatore Angolare Posizioni Potenziometro

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Noechnik IP6515A502 IP6515 A502 Encoder Square Position Potentiometerer

S.A.T System TDS Serie PCB Rev C CA30105 Versi1.01 Display

MAN BW 14.0330.0 PCL-370-HR Terminale Scatola Modifica Kit 1142823-0 Plc PCB

Telefrang AB J08 R.5A J08R5A Doppio Acia PCB Scheda

Teleframe

Noechnik IP6515A502 IP6515 A502 Encoder Angular Position Potentiometerer

Allen Bradley Protection Master ATLAS 5-GD2440G-L07263 Guardlock Switch Security

Navidyne Avidyne PC-197A TCS-3 Navid 10-00-1920 Digitale Supporto Scheda PCB

Telefrang AB H29 CPU 29 Set68 Goteborg Rev.4 SM9341 103564-11 PCB Scheda

Telefrang AB H29 CPU 29 Set68 Gothenburg Rev.4 SM9341 103564-11 PCB Card

Yokogawa PK5500 5502-2101 Currenttopneumatic Converter Actuate Membrane Operation

Yokogawa PK5500 5502-2101 Currenttopneumatic Converter Actuate Diaframma Operate

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Aria Pneumatico 10 BAR 142 Psi DN40 PN63 1.4408 0035 1.5'' Attuatore  Ball

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Servomex 01175/925 Basso Sensore di Flusso

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KEB 09.03.1000241 24VDC Electric Brake Coil Clutch Combistop Electromagnetic 35W

Phoenix Contact UMK-16 RM/KSR-G 24/21/E/PLC VARIOFACE Output Module 16 Relay

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Proton Electronics Alarm Annciator 30 Window

Inverter AG-195 /02 PCB PLC Card

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iaoBrasil 1000 Eletro Pneumatic Valve Positioner

Spector Lumenex OB00/01/3/03 Mentor Motherboard OB100/01/03/PL/IP Paging PCB

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Binder 8662114H00 24V 1,46A Brake Electric Electromagnetic

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Moxa NPort IA-5150 1-Port RS-232/422/485 Serial to Ethernet Device Server

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FMS V7.1 703-FS-CAP-1PFC1BATSENSE-ACCE-POT-ISORS485-XMM GREEN ARK ENERSOL 24VDCV

GREEN ARK FMS V7.1 ENERSOL 703-FS-CAP-1PFC1BATSENSE-ACCE-POT-ISORS485-XMM 24VDCV

Dominator P10 A NN 10201 Pneumatico Diaframma Pompa Std 1.3cm Alluminio NBR

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Inverter AG-195/02 PCB Plc Carta

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Proton Electronics Alarm Detector 30 Window

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Furo NX-500 Navtex Receiver And Printer S/N 8520-4115

Furo NX-500 Navtex Receiver And Printer S/N 8520-5610

Spector Lumenex Ob00/01/3/03 Mentor Motherboard OB100/01/03/Pl/IP Paging

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Spector Lumenex Ob00/01/3/03 Mentor Motherboard OB100/01/03/Pl / IP PCB

Naval A3560/A 3560 Amplifier SostituziDa PR-4600 Am/Fm 401.326

iaoBrasil 1000 Eletro Pneumatico Valvola Posizionatore

Naval A3560 / A 3560 Amplifier Replaced by PR-4600 Am/Fm 401.326

iaoBrasil 1000 Eletro Pneumatic Valve Position Controller

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Over Currant Trip AOR-1BL-AS / AOR1BLAS / A0R-1BL-AS

Crouzet Millenium 3 CD20 88970051 Smart Programmable Logic Controller PLC 24VDC

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Mitsubishi Electric A2ASCPU MAX 14KSTEP I/O Module Controller CPU it

Hernis Scan System Ok203 AI Keyboard for CCTV Control Survellance 230VAC

Hernis Scan System Ok203 AI Tastiera Per Tvcc Controllo Survellance Sistema

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Raython Anschutz 133-555 BSH-46/33 G/94 Analog Repeater Compass Geographical

GAI-TRONICS 69489-001 10489-001 17116-001 Terminal PCB Card