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

QO2125 - Square D - 125 Amp Circuit Breaker

QO2125VH - Square D - 125 Amp 22ka Circuit Breaker

QO2150VH - Square D - 150 Amp Molded Case Circuit Breaker

QO2151021 - Square D - 15 Amp Molded Case Circuit Breaker

QO215EPD - Square D - 15 Amp GFEP Circuit Breaker

QO215GFI - Square D - 15 Amp GFCI Circuit Breaker

QO2175 - Square D - 175A Circuit Breaker

QO2175VH - Square D 175 Amp 2 Pole 120 Volt Molded Case Circuit Breaker

QO2200 - SQUARE D 200A Double Pole Circuit Breaker

QO2200VH - Square D - Circuit Breaker

QO220EPD - Square D - 20 Amp GFEP Circuit Breaker

QO220GFI - Square D - 20 Amp GFCI Circuit Breaker

QO225GFI - Square D - 25 Amp GFCI Circuit Breaker

QO230EPD - Square D - 30 Amp GFEP Circuit Breaker

QO235GFI - Square D - 35 Amp GFCI Circuit Breaker

QO240EPD - Square D - 40 Amp GFEP Circuit Breaker

QO240GFI - Square D - 40 Amp GFCI Circuit Breaker

QO245GFI - Square D - 45 Amp GFCI Circuit Breaker

QO250GFI - Square D - 50 Amp GFCI Circuit Breaker

QO2601021 - Square D - 60 Amp Molded Case Circuit Breaker

QO260EPD - Square D - 60 Amp GFEP Circuit Breaker

QO260GFI - Square D - 60 Amp GFCI Circuit Breaker

QO260GFI3W - Square D - 60 Amp GFCI Circuit Breaker

QO2L70RB - Square D - 70 Amp Load Center

QO3201021 - Square D - 20 Amp Molded Case Circuit Breaker

QO340VH - Square D - 40 Amp Molded Case Circuit Breaker

QO342MQ225 - Square D - Load Center

QO350VH - Square D - 50 Amp Molded Case Circuit Breaker

QO380 - Square D - 80 Amp Circuit Breaker

QO390 - Square D - 90 Amp Circuit Breaker

QO403L100RB - Square D - Loadcentre

QO6L100S - Square D - Loadcenter

QOB115EPD - Square D - 15 Amp 30 mA GFEP Breaker

QOB120AFI - Square D - Molded Case Circuit Breaker

QOB120EPD - Square D - 20 Amp 30 mA GFEP Breaker

QOB120VHGFI - Square D - GFCI Circuit Breaker

QOB21001021 - Square D - 100 Amp Molded Case Circuit Breaker

QOB2100VH - Square D - 100 Amp 22kA Circuit Breaker

QOB2110 - Square D - 110 Amp Circuit Breaker

QOB2125 - Square D - 125 Amp Circuit Breaker

QOB2150VH - Square D - Circuit Breaker

QOB2151021 - Square D - Molded Case Circuit Breakers

QOB260GFI - Square D - 60 Amp GFCI Circuit Breaker

QOB2801021 - Square D - Molded Case Circuit Breakers

QOB280VH - Square D - 80 Amp 22kA Circuit Breaker

QOB290VH - Square D - 90 Amp 22kA Circuit Breaker

QOB3100VH - Square D 100 Amp 3 Pole 240 Volt Bolt-On Circuit Breaker

QOB3125VH - Square D - 22 kA Circuit Breaker

QOB3150VH - Square D - 150 Amp 22kA Circuit Breaker

QOB315SWN - Square D - 15 Amp Disconnect and Safety Switch

QOB315VH - Square D - 15 Amp 22kA Circuit Breaker

QOB320GFI - Square D - 20 Amp GFCI Breaker

QOB320VH - Square D 20 Amp 3 Pole 240 Volt Bolt-On Circuit Breaker

QOB330GFI - Square D - 30 Amp  GFCI Breaker

QOB330GFI - Square D - 30 Amp GFCI Breaker

QOB330VH - Square D 30 Amp 3 Pole 240 Volt Bolt-On Circuit Breaker

QOB340VH - Square D 40 Amp 3 Pole 240 Volt Circuit Breaker

QOB350EPD - Square D - Molded Case Circuit Breaker

QOB350VH - Square D 50 Amp 3 Pole 240 Volt Bolt-On Circuit Breaker

QOB360 - Square D - 60 Amp Circuit Breaker

QOB3601021 - Square D - Molded Case Circuit Breakers

QOB360VH - Square D - 60 Amp 22kA Circuit Breaker

QOB380 - Square D - 80 Amp Circuit Breaker

QOC42UF - Square D - Load Center

QOM100VHL -  Square D - 100 Amp Main Circuit Breaker

QOM100VHL - Square D - 100 Amp Main Circuit Breaker

QOM2100MVH - Square D - Molded Case Circuit Breakers

QOM2175VH - Square D - 175 Amp Main Circuit Breaker

QOM90VH - Square D - Molded Case Circuit Breaker

QOU1100 - Square D - Molded Case Circuit Breakers

QOU180 - Square D - 80 Amp Circuit Breaker

QOU2100 - Square D - 100 Amp Circuit Breaker

QOU280 - Square D - 80 Amp Circuit Breaker

QOU310 - Square D - 10 Amp Circuit Breaker

QOU3100 - Square D - 100 Amp Circuit Breaker

QOU315 - Square D - 15 Amp Circuit Breaker

QOU320 - Square D - 20 Amp Circuit Breaker

QOU330 - Square D - 30 Amp Circuit Breaker

QOU335 - Square D - 35 Amp Circuit Breaker

QOU340 - Square D - 40 Amp Circuit Breaker

QOU350 - Square D - 50 Amp Circuit Breaker

QOU360 - Square D - 60 Amp Circuit Breaker

QOU380 - Square D - 80 Amp Circuit Breaker

QOU390 - Square D - 90 Amp Circuit Breaker

QPC 048/02, Thermo Scientific 12228294R, Goring Kerr Detector Mot

QR22B125 - Siemens - Molded Case Circuit Breaker

QR22B125L - Siemens - Molded Case Circuit Breaker

QR22B175L - Siemens - Molded Case Circuit Breaker

QR22B200L - Siemens - 200 Amp Molded Case Circuit Breaker

QR22B225L - Siemens - Molded Case Circuit Breaker

QR23B125 - Siemens - Molded Case Circuit Breaker

QR23B125L - Siemens - Molded Case Circuit Breaker

QR23B150L - Siemens - Molded Case Circuit Breaker

QR23B175 - Siemens - Molded Case Circuit Breaker

QR23B175L - Siemens - Molded Case Circuit Breaker

QR23B200L - Siemens - Molded Case Circuit Breaker

QR23B225 - Siemens - Molded Case Circuit Breaker

QR23B225L - Siemens - Molded Case Circuit Breaker

QRH22B100 - Siemens - Molded Case Circuit Breaker

QRH22B125 - Siemens - Molded Case Circuit Breaker

QRH22B150 - Siemens - Molded Case Circuit Breaker

QRH22B150L - Siemens - Molded Case Circuit Breaker

QRH22B175 - Siemens - Molded Case Circuit Breaker

QRH22B175L - Siemens - 175 Amp Mounting Hardware

QRH22B200 - Siemens - Molded Case Circuit Breaker

QRH22B225L - Siemens - Molded Case Circuit Breaker

QRH23B125 - Siemens - Molded Case Circuit Breaker

QRH23B125L - Siemens - Molded Case Circuit Breaker

QRH23B150 - Siemens - Molded Case Circuit Breaker

QRH23B175 - Siemens - Molded Case Circuit Breaker

QRH23B175L - Siemens - Molded Case Circuit Breaker

QRH23B200 - Siemens - Molded Case Circuit Breaker

QRH23B225 - Siemens - Molded Case Circuit Breaker

QRH23B225L - Siemens - Molded Case Circuit Breaker

QS1M03AY0XX0XP00 SANYO DENKI AC SERVO SYSTEMS INPUT 200

QS2100H - Siemens - Main Circuit Breaker

QS2100HH - Siemens - Main Circuit Breaker

QS2150H - Siemens - Molded Case

QS2175H - Siemens - Main Circuit Breaker

QS2225H - Siemens - 225 Amp Molded Case Circuit Breaker

QSA2020SPD - Siemens - 20 Amp Surge Protector

QSAC Board 31-50220N12 4 Channel Servo Control Encoder Board

QS-M60 KEYENCE MOTOR

QT- AMH2A High Performance 2-Axis Controller Driver

Quad Tech 7606-660R Autotron-H510 Scanning Head Gravure Printing Alignment

Quad Tech 7606-660R-01 Autotron-H510 Scanning Head Gravure Printing Alignment

Quad Tech 7606-660R-05B Autotron-H510 Scanning Head Gravure Printing Alignment

Quad Tech 7606-6900-02D Autotron-H510 Scanning Head Gravure Printing Alignment

Quad Tech 7606-6900-04F Autotron-H510 Scanning Head Gravure Printing Alignment

QUALIDYNE 21011 SWITCHING POWER SUPPLY  NOS  

 QUANTAI SYSTEMS IPS-30C-J

QUANTAI SYSTEMS IPS-30C-J