福建中立恒自动化设备有限公司
主营产品: 大型DCS系统备件,进口工业机器人备件,大型伺服系统电机驱动器,变频器,传感器,安全栅,编码器,电磁阀,流量计等机械或电气部件产品
0020-70276板卡船舶半导体工控备件优势经销
发布时间:2024-11-09

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。

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GUARANTEED! MITSUBISHI SEMICONDUCTOR DIODE CR150DM

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3RF2420-1AB45 3 phase 3RF2 semiconductor contactors  Genuine Product

TD430N22KOF- Semiconductor - Electronic Component

  For 170M7104 Semiconductor Protection Fuse #F3

  A70Q500-4 Semiconductor Fuse 700V 500A #W4

  A70Q500-4 Semiconductor Fuse 700V 500A #W7

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5STP24H2600- Semiconductor - Electronic Component

5SDF0860H0003- Semiconductor - Electronic Component

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5SDA14F5007- Semiconductor - Electronic Component

7MBP200RA-060 FUJI Module - Semiconductor - Electronic Component

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E82EV551-2C - Electronic Component - Semiconductor Module

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Bussmann Buss 170M4211 Semiconductor Fuse /PL3

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CM100TU-24F - IGBT - Semiconductor - Electronic Component

TT310N22KOF - IGBT - Semiconductor - Electronic Component

FUJI MODULE 6MBI200FA-060

PM150CBS060 - Module / Electronic Component / Semiconductor

Philips Semiconductors 1N5059 933076440133 Diode, Type :

Philips Semiconductors BZD23-C7V5 933753360133 Diode, Type: BZD23-C7V5

Philips Semiconductors 1N5061 933206080133 Diode, Type: 1N5061

Philips Semiconductors BZD23-C16 933753440133 Diode, Type :

Philips Semiconductors BZD23-C5V1 933753320133 Diode, Type: BZD23-C5V1

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3160451 / PCB CONTROL MODULE / KOKUSAI SEMICONDUCTOR EQUIPMENT

 3RM1002-2AA04 AC Semiconductor Motor Starter 2  #WD6

Mersen Ferraz Shawmut A100P100-4TA - Fuse 1000VAC Semiconductor

Omron G3PE-525B-2N 12-24V Relé Semiconductor Emb.orig No Usado

 3RM1002-2AA04 AC Semiconductor Motor Starter 2 Expedited Ship #A6-36

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Bussmann FWH-.250A6F Semiconductor Fuse FWH250A6F

1SDA017747R1 - Semiconductor - Electronic Component

CM75YE13-12H - Semiconductor - Electronic Component

PM800HSA060 - Electronic Component - Semiconductor Module

SEMIX251GD126HDS- Semiconductor - Electronic Component

CM600DU-24H - Semiconductor - Electronic Component

SEMIX151GD12E4S- Semiconductor - Electronic Component

6MBP150RA-120 FUJI Module - Semiconductor - Electronic Component

ON Semiconductor Buffers  Line Drivers 5V, MC100EL16DG, 5

Siemens Sirius 3RW4037-1BB14 AC Semiconductor Motor Starter Made in Germany

Siemens Sirius 3RW4037-1BB14 AC Semiconductor Motor Starter Made in Germany

  Semiconductor Contactor 3RF2420-1AB45 #L793 LZ(DHL/) #T6

Bussmann Buss 170M4266 Semiconductor Fuse /PL3

TD310N22KOF - Semiconductor - Electronic Component

7MBP100RA-120 FUJI Module - Semiconductor - Electronic Component

TD240N30KOF - Semiconductor - Electronic Component

TD400N26KOF - Semiconductor - Electronic Component

LINEAR SEMICONDUCTORS DC854D-F / DC854DF

LINEAR SEMICONDUCTORS DC997B-F / DC997BF

LINEAR SEMICONDUCTORS DC1133A-F / DC1133AF

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LINEAR SEMICONDUCTORS DC996A-Q / DC996AQ

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LINEAR SEMICONDUCTORS DC1133A-B / DC1133AB

LINEAR SEMICONDUCTORS DC782A-F / DC782AF

LINEAR SEMICONDUCTORS DC854D-B / DC854DB

LINEAR SEMICONDUCTORS DC854C-Q / DC854CQ

LINEAR SEMICONDUCTORS DC996B-C / DC996BC

LINEAR SEMICONDUCTORS DC997B-D / DC997BD

LINEAR SEMICONDUCTORS DC1058A-E / DC1058AE

LINEAR SEMICONDUCTORS DC918C-L / DC918CL

LINEAR SEMICONDUCTORS DC854D-J / DC854DJ

LINEAR SEMICONDUCTORS DC1133A-E / DC1133AE

LINEAR SEMICONDUCTORS DC997B-B / DC997BB

LINEAR SEMICONDUCTORS DC997B-E / DC997BE

LINEAR SEMICONDUCTORS DC2236A-B / DC2236AB

LINEAR SEMICONDUCTORS DC1133A-D / DC1133AD

LINEAR SEMICONDUCTORS DC1133A-C / DC1133AC

LINEAR SEMICONDUCTORS DC854D-D / DC854DD

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Jai Pulnix CV-M2 Progressive Scan CCD Machine Vision Camera Semiconductor

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PDM5001 - Electronic Component - Semiconductor Module

ET439 - IGBT - Semiconductor - Electronic Component

6MBP100RA-120 FUJI Module - Semiconductor - Electronic Component

LINEAR SEMICONDUCTORS DC2123A / DC2123A

 LISTINGP-LINE AC SEMICONDUCTOR SC 2 DD 40 50 POWER Contactor

 LISTINGP-LINE AC SEMICONDUCTOR SC 1 DD 40 63 POWER Contactor

BAT54S Schottky Diodes  Rectifiers 30V 200mA ON Semiconductor 3000 piece reel

SKM75GDL123D Semikron Module - Semiconductor - Electronic Component

MIG150Q6CMB1X - Electronic Component - Semiconductor Module


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