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
8536SBG2V03 - Square D - 18 Amp Motor Starter
8536SBO2V02H30S - Square D - Starter
8536SBO2V02S - Square D 18 Amp 3 Pole 600 Volt Electric Motor Starter
8536SBO2V03 - Square D - 18 Amp Electric Motor Starter
8536SBO2V06 - Square D 18 Amp 3 Pole 600 Volt Electric Motor Starter
8536SCA3V02S - Square D - Motor Starter
8536SCG3V03 - Square D - 27 Amp Electric Motor Starter
8536SCG3V06 - Square D - Motor Starter
8536SCO3V02S - Square D - 27 Amp Motor Starter
8536SCO3V03 - Square D - 27 Amp Electric Motor Starter
8536SCO3V06 - Square D - 27 Amp Electric Motor Starter
8536SDG1V02S - Square D - 45 Amp Electric Motor Starter
8536SDG1V03 - Square D - 45 Amp Electric Motor Starter
8536SDO1V02H30S - Square D - 45 Amp Motor Starter
8536SDO1V02S - Square D - 45 Amp Motor Starter
8536SDO1V03 - Square D 45 Amp 3 Pole 600 Volt Electric Motor Starter
8536SDO1V06 - Square D - 45 Amp Motor Starter
8536SEG1V02S - Square D - Electric Motor Starter
8536SEO1V02S - Square D - Electric Motor Starter
8536SEO1V03 - Square D - Electric Motor Starter
8536SEO1V06 - Square D - Electric Motor Starter
8536SFO1V02S - Square D - Electric Motor Starters
8536SFO1V03 - Square D - 135 Amp Electric Motor Starter
8536SFO1V06 - Square D - 135 Amp Electric Motor Starter
8536SGO1V02H30S - Square D - Electric Motor Starters
8536SGO1V02S - Square D - 270 Amp Electric Motor Starter
8536SGO1V06 - Square D - 270 Amp Electric Motor Starter
8903LG40V02 - Square D - 30 Amp Lighting Contactor
8903LG60V02 - Square D - 30 Amp 6 Pole Magnetic Contactor
8903LO40V02 - Square D - Magnetic Contactor
8903LO80V02 - Square D - Magnetic Contactor
8910DPA23V02 - Square D - Definite Purpose Contactor
8910DPA23V09 - Square D - Definite Purpose Contactor
8910DPA24V09 - Square D - Definite Purpose Contactor
8910DPA32V02 - Square D - Definite Purpose Contactor
8910DPA32V14 - Square D - Definite Purpose Contactor
8910DPA34V02 - Square D - Definite Purpose Contactor
8910DPA42V02 - Square D - Definite Purpose Contactor
8910DPA43V04 - Square D - Definite Purpose Contactor
8910DPA52V02 - Square D - Definite Purpose Contactor
8910DPA53V02 - Square D - Contactor
8910DPA72V02 - Square D - Definite Purpose Contactor
8910DPA72V09 - Square D - Definite Purpose Contactor
8910DPA73RV02 - Square D - Contactor
8911DPSG23V09 - Square D - Motor Starter
8911DPSG42V09 - Square D - Motor Starter
8911DPSO33V02 - Square D - Motor Starter
8EM1312-4CF18-OFA3 - Siemens - Panel
8EM1312-5CF18-OFA3 - Siemens - Panel
8MES500T- Eaton - Rating Plug
8MES800T- Eaton - Rating Plug
8Rexroth MSK071D-0300-NN-M1-UG1-NNNN SERVO MOTOR OVERNIGHT
9001BG305 - Square D - Motor Control Part And Accessory
9001BW240 - Square D - Push Buttons
9001BW241 - Square D - Control Station
9001BW92Y - Square D - Motor Control Part And Accessory
9001BW96Y - Square D - Push Button
9001K34 - Square D - Controller
9001KR9RH6 - Square D - Push Button
9001KYG1Y2 - Square D - Automation Switch
9001SK2107 - Square D - Sensor
9001SKRU2 - Square D - With Enclosure
9001SKYP8 - Square D - Enclosure
9007C52D - Square D - Automation Switch
9007C54B2Y1851 - Square D - Switch
9007C54K - Square D - Automation Switch
9007C62B2 - Square D - Limit Switch
9007C62D - Square D - Automation Switch
9007CO54 - Square D - Limit Switch
9007FTSB1 - Square D - Automation Switch
9007J - Square D - Motor Control Part And Accessory
9007MS02S0100 - Square D - Automation Switch
9007TUB4M12 - Square D - Switch
9013GHG2J30X - Square D - Switch
9013GSG2J20 - Square D - Switch
9016GAW1 - Square D - Automation Switch
9032 0120 50 / ATLAS COPCO DMC 51540P-AC DIGIT/ GS
9032 0120 51 ATLAS COPCO DMC 50720-AC DIGITAL M/ GS
9037HG33 - Square D - Automation Switch
9038AG1 - Square D - Automation Switch
9065SDO5 - Square D - Overload Relay
9065SF020 - Square D - Overload Relay
9065SF120 - Square D - Overload Relay
9065ST220 - Square D - Overload Relay
9070T100D1 - Square D - Industrial Control Transformer
9070T100D13 - Square D - Industrial Control Transformer
9070T200D1 - Square D - Control Power
9070T250D1 - Square D - Control Power
9070T500D2 - Square D - Control Power
9070TF150D1 - Square D - Industrial Control
9070TF300D1 - Square D - Industrial Control
9070TF350D1 - Square D - Industrial Control
9070TF50D1 - Square D - Industrial Control Transformer
9080LBA364101 - Square D - Fuse Block
9080LBA365202 - Square D - Power Distribution Block
9080LBA365208 - Square D - Power Distribution Block
90VDC 1Hp Gearmotor w/ Warner EM 50-20 Clutch Brake 30:1 Gearbox Winch
9-1891-1 - Eaton - Magnetic Coil
9-1891-14 - Eaton - Magnetic Coil
9-1891-3 - Eaton - Magnetic Coil
9-2756-1 - Eaton - Magnetic Coil
9-2756-2 - Eaton - Magnetic Coil
9-2876-1 - Eaton - Magnetic Coil
9-2876-2 - Eaton - Magnetic Coil
9-2876-36 - Eaton - Coil
9-2876-5 - Eaton - Magnetic Coil
9-3285-1 - Eaton - Magnetic Coil
9998DA2V02 - Square D - Magnetic Coil
9998SL2 - Square D - Contact Kit
9998SL3 - Square D - Contact Kit
9998SL4 - Square D - 45 Amp Disconnect and Safety Switch
9998SL7 - Square D - Contact Kit
9999SA2 - Square D - Motor Control Parts
9999SC2 - Square D - Motor Control Parts
A
A&A DYNATECT M-3005-211-021 Telescopic Steel Way Covers Lot/1
A&D AD-4212B-102 Weighing Modules
A&D AD-4406 WEIGHING INDICATOR
A&D AND AD3542 FFT
A&D AND AD3542 FFT
A&D FX-200 Precision Electronic Balance Weighing Scale Dust Waterproof 210 Grams
A&D Weighing AD-4401A AD Series Weighing Indicator SAMEDAY SHIP
A&D weighing line controller AD-8923
A&D weighing line controller AD-8923-BCD
A.O. Smith F48B09A12 21" x 21" 1/4Hp 460V 50/60Hz Aftercooler Radiator Exchanger
A01MN64 - Siemens - 800 Amp Auxiliary Switch
A06B-0142-B077 FANUC SERIES A12/2000 motor
A06B-6044-H742 Spindle Drive
A06B-6090-H234 FANUC SERVO DRIVE (PAAM+E)
A06B-6090-H234 FANUC SERVO DRIVE (PAAM+E)
A06B-6110-H026 - Fanuc Power Supply Module EXPRESS NDA ON REQ
A1000 Yaskawa Electric Inverter CIMR-AA2A0138AAA (3)