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

E50SN - Eaton - Automation Switch

E51DT5 - Eaton - Limit Switch

E5EC-CX4ASM-004 Digital Temp Controller Omron  

EABC16 SA - Eaton - Crouse-Hinds Conduit Outlet Box

EABX16 - Crouse-Hinds - Outlet Box

EAE DIGA3201A-4 Jam Monitoring Unit 230V 50/60Hz

EAE EPC 2020 K005 Fieldbus I/O Extension Module W/Cooling Fan

EAE GSBCD*04*00*02 SBCD-4 Fieldbus Single Board Computer Module

EAE GSBDS*04*01** SBDS 4 Analog Module

EAE ICS 4 Image Control System 1 Module

EAE Industrial Electronics 0513.MKDS11-

EAE Industrial Electronics 0513.MKDS11-1

EAE PC602V.1104F-UK Operator Interface Control Display

EAE-A KMAE100K0200ANK Controller

Eagle 3" ID x 23' 6" Hot Air Compressor Dry Bulk Blower Hose Black Rubber 150PSI

Eagle 3" ID x 29' Hot Air Compressor Dry Bulk Blower Hose Black Rubber 150 PSI

EAGLE MAGNETIC FLUID SEAL AL126051793

EAGLE MAGNETIC FLUID SEAL EKK142087MM

EAJL26 - Crouse-Hinds - Outlet Box

EATON  C / SURGE SUPRESSOR  

EATON 1023843 PCBAS 3K30 POWER BOARD

EATON 1582036 DMR ASSY   

EATON 606-1286-002RB hydraulic valve OVERNIGHTAB

Eaton Airflex 303978-01 24CTF500 Reaction Pin

Eaton Char-Lynn 103-2040-010 OEM Hydraulic Geroler Spool Valve Motor 15 GPM

Eaton Cutler Hammer AGSVL120N3

Eaton Cutler Hammer S 525-690V 18A AC Drive

EATON C / SURGE SUPRESSOR  

EATON DG4V56CJVMUH620 CONTROL VALVE  MISSING BOX

EATON DGMX23PPBWB40EN13 VICKERS SYSTEM STAK  MISSING BOX

Eaton DH364FGKJSEL Fusible Disconnect Safety Switch 200A 600V 3Ph

EATON Dynamatic 3 phase reactor 600v 10hp

EATON DYNAMIC 755762/702282 REV A POWER CIRCUIT BOARD

Eaton E04NB18X3N Contactor 3P Contact Block w/Coil Controller 24VDC E02NBXCXNN

Eaton EDR-4000A0BA0 Power Relay Protective Type 5A 250Vac

 EATON es4p-221-drxd1 MODULE SAMEDAY

EATON es4p-221-drxd1 MODULE SAMEDAY

Eaton hydraulic pump,  25503-LSA,  

Eaton hydraulic pump, 25503-LSA,

Eaton Hydraulic Tie Rod Cylinder 4" Bore 18" Stroke 3000PSI

EATON iX PT7F HMI

EATON KBS2DG4V392L12M1F1PE7H8COAVSC10 AXISPRO NNB

EATON KDG4V333C30XMUH760 CONTROL VALVE  

EATON LEONARD 804876 VIVID SCU X2 CIRCUIT BOARD

EATON MV155F2DCX175E FUSE 175 A 15.5 kVAC

Eaton NS3-600-NA Molded Case Circuit Breaker 600V 10A 3 Pole

EAton Sperry Vickers 000895-X Valve NIB

Eaton Vickers 435521 PA5DG4S4LW-012N-51 Hydraulic Solenoid Directional Valve

EATON VICKERS HF3P1SB4RBB2C05 HYDRAULIC FILTER

Eaton Vickers PA5DG4S4W-012C-B-60 Directional Control Valve 110-120V

Ebara 40VTP12/16 67.5C 22" Immersion Coolant Pump 100L/m 7.5kw 460V 3PH

Ebara Corporation line fan 3LFM3 200V 50Hz

Eberhard Bauer G13-10/DK 74-178-AS/M Inline Gearmotor w/Brake 32rpm 277/480V 3PH

ECB14015G3 - Square D - Molded Case Circuit Breaker

ECB14020G3 - Square D - Molded Case Circuit Breaker

ECC-E411(S7)A87 ECO2CD Core i7 1.06GHz HDD

ECGJH112 - Crouse-Hinds - Coupling

Eckelmann PRODOS industrial panel  Prodos V2.1, 100-265VAC OVERNIGHT

Eckelmann PRODOS industrial panel Prodos V2.1, 100-265VAC OVERNIGHT

ECNR150 - Bussmann - Low Voltage Fuse

ECNR350 - Bussmann - Low Voltage Fuse

ECNR400 - Bussmann - Low Voltage Fuse

EcoCharge ECO970  | 200-240VAC Forklift Bat

EcoCharge ECO970 | 200-240VAC Forklift Bat

ECS 7820-3-02-5-20-BF202 Power Controller Primary 4-20ma Secondary 50A 480V

ECSBPK02 - Siemens - Circuit Breaker Part

ECSR70 - Bussmann - Low Voltage Fuse

ED2150L - Eaton - Molded Case Circuit Breaker

ED2175L - Eaton - Molded Case Circuit Breaker

ED2200L - Eaton - Molded Case Circuit Breaker

ED2225L - Eaton - Molded Case Circuit Breaker

ED22B035 - Siemens - Molded Case Circuit Breaker

ED22B050L - Siemens - Molded Case Circuit Breaker

ED22B060 - Siemens - Molded Case Circuit Breaker

ED22B070 - Siemens - Molded Case Circuit Breaker

ED22B080 - Siemens - Molded Case Circuit Breaker

ED22B080L - Siemens - Molded Case Circuit Breaker

ED22B090 - Siemens - Molded Case Circuit Breaker

ED23B045 - Siemens - Molded Case Circuit Breaker

ED23B090 - Siemens - Molded Case Circuit Breaker

ED3100 - Eaton - Molded Case Circuit Breaker

ED3100L - Eaton - Molded Case Circuit Breaker

ED3125L - Eaton - Molded Case Circuit Breaker

ED3150L - Eaton - Molded Case Circuit Breaker

ED3200L - Eaton - Molded Case Circuit Breaker

ED41B045L - Siemens - Molded Case Circuit Breaker

ED41B060 - Siemens - Molded Case Circuit Breaker

ED41B070L - Siemens - Molded Case Circuit Breaker

ED42B015 - Siemens - Molded Case Circuit Breaker

ED42B035L - Siemens - Molded Case Circuit Breaker

ED42B060 - Siemens - Molded Case Circuit Breaker

ED42B060L - Siemens - Molded Case Circuit Breaker

ED42B070 - Siemens - Molded Case Circuit Breaker

ED42B070L - Siemens - Molded Case Circuit Breaker

ED42B100 - Siemens - Molded Case Circuit Breaker

ED42B110 - Siemens - Molded Case Circuit Breaker

ED43B015 - Siemens - Molded Case Circuit Breaker

ED43B015L - Siemens - Molded Case Circuit Breaker

ED43B030 - Siemens - Molded Case Circuit Breaker

ED43B035 - Siemens - Molded Case Circuit Breaker

ED43B040L - Siemens - Molded Case Circuit Breaker

ED43B050 - Siemens - Molded Case Circuit Breaker

ED43B050L - Siemens - Molded Case Circuit Breaker

ED43B060L - Siemens - Molded Case Circuit Breaker

ED43B080 - Siemens - Molded Case Circuit Breaker

ED43B080L - Siemens - Molded Case Circuit Breaker

ED43B090 - Siemens - Molded Case Circuit Breaker

ED43B100 - Siemens - Molded Case Circuit Breaker

ED43B110 - Siemens - Molded Case Circuit Breaker

ED61B020L - Siemens - Molded Case Circuit Breaker

ED63A001 - Siemens - Molded Case Circuit Breaker

ED63A002 - Siemens - Molded Case Circuit Breaker

ED63A002L - Siemens - Moded Case Circuit Breaker

ED63A003 - Siemens - Molded Case Circuit Breaker

ED63A005 - Siemens - Molded Case Circuit Breaker

ED63A025L - Siemens - Moded Case Circuit Breaker

ED63A040 - Siemens - Molded Case Circuit Breaker

ED63A050L - Siemens - Moded Case Circuit Breaker

ED63A100 - Siemens - Molded Case Circuit Breaker

ED63A125 - Siemens - Molded Case Circuit Breaker

ED63A125L - Siemens - Moded Case Circuit Breaker

ED63B015 - Siemens - Molded Case Circuit Breaker

ED63B030 - Siemens - Moded Case Circuit Breaker

ED63B035L - Siemens - Molded Case Circuit Breaker

ED63B040 - Siemens - Moded Case Circuit Breaker

ED63B050 - Siemens - Molded Case Circuit Breaker

ED63B100 - Siemens - Molded Case Circuit Breaker

EDB16020 - Square D - Molded Case Circuit Breaker

EDB16060 - Square D - Molded Case Circuit Breaker

EDB24025 - Square D - Molded Case Circuit Breaker

EDB24060 - Square D - Molded Case Circuit Breaker

EDB24070 - Square D - Molded Case Circuit Breaker