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

 EAGLE SIGNAL PCC-11 6-DIGIT ELECTRIC COUNTER 230V

 EAGLE SIGNAL TMIA6010511 REPEAT CYCLE TIMER 0-6 SEC 120V

EAS Screw-In Water Heater Element SG-2457 SG2457 240V 4500W

Eastar 130794 Riding Lawn Mower Deck Mandrel w/ 5-Point Spindle Star 38" 42"

Eastman 35203 1-1/2" Chrome Lift & Turn Drain w/ Brass Pipe Waste & Overflow

Easy Gauge Thread Identifier Template 004351 / NC56 4 TPI

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 EATON 10250T3043-11X 3 POSITION SELECTOR SWITCH W/ CONTACT BLOCKS

Eaton 10250T60E 1NO Logic Contact Block

Eaton 102977-000 DL - Motor Drive Shaft S/A 23

 EATON 15HLE-100E FUSE 100E AMP 15.5 MAX KV

EATON 5.7701-451 DIGITAL PANEL METER

 EATON 573055-15-03-06X BYPASS VALVE W/ELEMENT 941107

  EATON 58-6177GR1 AMP SPARES FOR SSCV

 EATON 5MCLS-4R-B FUSE 130 (4R) A/AMP

EATON 6702ED673 SIZE 3 74VDC COIL CONTACTOR

EATON 6N681-99 PROCESSOR MODULE CONSOLIDATED CONTROLS 02750

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 EATON A202K3CAM AC LIGHTING CONTACTOR CONTACT KIT 100AMP

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Eaton Bussman Series 5-5ABWNA0-5E High Voltage VT/PT HRC Fuse Links

 EATON BUSSMANN 170M5512 FUSE 630A/AMP 690V

 EATON BUSSMANN 170M5969 FUSE 400A/AMP 1000V

 EATON BUSSMANN 170M6143 FUSE 550 A/AMP

 EATON BUSSMANN 170M6143 FUSE 550A/AMP

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Eaton CH5041493B03 / 5041493B03 Crs-H Cable Assembly 600V 7amps

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Eaton Cooper Power CC6A27U Bol-T 600A Compression Connector

Eaton Cooper Power LPC238 200A Loadbreak Insulated Protective Cap 21.2/36.6KV

Eaton Crouse-Hinds 1744 2-1/2" FMC Insulated Clamp Type Connector 90° Angle

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 EATON CUTLER HAMMER QCF2030 2-POLE 30A/AMP CIRCUIT BREAKER

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 EATON CUTLER-HAMMER 1320B-6501 20 SERIES PHOTOELECTRIC SENSOR

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 EATON CUTLER-HAMMER 9-584-4 COIL

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 EATON CUTLER-HAMMER BWH2225 CIRCUIT BREAKER 2 POLE 225 A/AMP

 EATON CUTLER-HAMMER C316FNA3K OVERLOAD RELAY 2.8-4A

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 EATON CUTLER-HAMMER E50NN1 LIMIT SWITCH

 EATON DC1-1D4D3NN-A20N VARIABLE FREQUENCY DRIVE

 EATON DILM 25-10 XTCE02510C-GR1 CONTACTOR 415/480V COIL

 EATON DURANT 6-Y-1-2-MF-PMU ELECTRONIC COUNTER W/ KEY

 EATON DURANT 6-Y-1-MF-PMU ELECTRONIC COUNTER

 EATON E30DG COMPACT PUSHBUTTON OPERATOR W/INDICATOR LIGHT

 EATON E58-30TD250-GL PHOTOELECTRIC SENSOR

 EATON E58-30TS250-GA PHOTOELECTRIC SENSOR

Eaton EYD5 1-1/2" Vertical Female Condulet Sealing Fitting

Eaton FAZ-C16/2-NA Miniature Circuit Breaker C-Curve 16A 2-Pole 480Y/277VAC

 EATON FAZ-C63/3 CIRCUIT BREAKER 3 POLE 63A/AMP

 EATON FAZ-D40/3 CIRCUIT BREAKER 3 POLE 40A/AMP

Eaton GDB2030D G-Frame GDB Molded Case Circuit Breaker 2-Pole 30A 480VAC

Eaton Keypad E3124M4W3M1402 Tilt Up / Down Fold Up / Down Lift In/ Out

 EATON M22-PVT-K11 RED EMERGENCY STOP PUSH BUTTON W/CONTACT BLOCKS

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 EATON P/N 58-6176GR7 SERIAL 9810006 BOARD

 EATON P/N 58-6204 SERIAL FB42912 BOARD

 EATON P/N 58-6206GR1 BOARD S/N 9639003C

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Eaton RSS-24MCW-AR Wheelock Strobe Wall Mount Red Clear Lens AGENT Lettering

Eaton Synflex 3350-12 3/4" Hose 3000 PSI about 30' Long 90N12-124 Fittings

 EATON VICKERS 02-341966 PISTON PUMP PVQ40AR02AA10G21000001-AE100CDOA

 EATON VICKERS 271025 RECTIFIER SUPPRESSOR

Eaton Vickers 361760 Pump Shaft #86 45V

 EATON VICKERS CVI25X150 SLIP-IN CARTRIDGE VALVE

 EATON VICKERS DG4V-3-2AL-M-U-HL7-60 SOLENOID VALVE 24V 24VDC COIL

 EATON VICKERS F3-25V17A-1A22R HYDRAULIC VANE PUMP P/N 02-137122-1

EATON VICKERS F3-DG4S4-012A-50 HYDRAULIC PILOT DIRECTIONAL VALVE

Eaton Vickers MCD-5340 AZ51268 Valve

 EATON VICKERS SV4-10-0-6H-24DS SOLENOID VALVE 24V COIL

 EATON XN-16DO-24VDC-0.5A-DIGITAL OUTPUT P BLOCK MODULE

 EATON XTFC2P5BBA COMBINATION STARTER 1 HP PROTECTOR 1.6-2.5 A

 EATON XTFC2P5BBA MANUAL COMBINATION MOTOR STARTER PROTECTOR 1.6-2.5A

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 EATON XTRCR009B21A CONTACTOR 110/120V COIL

 EATON/ CUTLER-HAMMER 10250T3033 3 POSITION SELECTOR SWITCH

 EATON/ CUTLER-HAMMER OPCON 12410-6501 PHOTOELECTRIC CONTROL P/N 104832 115V

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EATON/CUTLER HAMMER CR9203 MODULE

 EATON/CUTLER HAMMER E57-30LE40-BD INDUCTIVE PROXIMITY SENSOR

 EATON/CUTLER-HAMMER 10250ED864-3 ROTO-PUSH BUTTON SWITCH W/CONTACTS

 EATON/CUTLER-HAMMER 10250ED864-3 ROTO-PUSH BUTTON SWITCH W/CONTACT

 EATON/CUTLER-HAMMER 10250T411-2 SER.B2 ILLUMINATED PUSH BUTTON 2 POSITION

 EATON/CUTLER-HAMMER 1268C86G02 COIL 125V

 EATON/CUTLER-HAMMER 1451E-6543 16'FT POLARIZED REFLEX PHOTOELECTRIC SENSOR

 EATON/CUTLER-HAMMER 752B515G01 FOR NAVY AQB L400/LL400 ALARM SWITCH ASSEMBLY

 EATON/CUTLER-HAMMER 8161B-1X2 60 SERIES PHOTOELECTRIC CONTROLLER BOARD

 EATON/CUTLER-HAMMER A16DNS0AC MOTOR STARTER 3 POLE 110/120V COIL

 EATON/CUTLER-HAMMER AN16AN0 MOTOR STARTER SIZE 00 208V COIL

 EATON/CUTLER-HAMMER BFD13S BFD CONTROL RELAY 120V COIL 765A945G01

 EATON/CUTLER-HAMMER C306GT3P OVERLOAD RELAY ONLY 75A/AMP

 EATON/CUTLER-HAMMER CE55AN3 REVERSING CONTACTOR 440/480V COIL

 EATON/CUTLER-HAMMER CE55CN3 REVERSING CONTACTOR

 EATON/CUTLER-HAMMER CH250SUR SURGE PROTECTIVE CIRCUIT BREAKER 2 POLE 50A/AMP

EATON/CUTLER-HAMMER CN15NN3 MOTOR STARTER W/OVERLOAD 135A/AMP 110/120V COIL

 EATON/CUTLER-HAMMER D200MIA420 ANALOG INPUT MODULE 4 CHANNEL 1-5VDC

 EATON/CUTLER-HAMMER D200MOA200 ANALOG OUTPUT MODULE

 EATON/CUTLER-HAMMER D200MOA210H ANALOG OUTPUT 2-CHANNEL

 EATON/CUTLER-HAMMER D26MR20B TYPE M RELAY 220/240V COIL

 EATON/CUTLER-HAMMER E30KP1 POTENTIOMETER 10K OHMS

 EATON/CUTLER-HAMMER E34N1 CORROSION RESISTANT ENCLOSURE 1 UNIT (HOLE)

 EATON/CUTLER-HAMMER E57SBL18T111 INDUCTIVE PROXIMITY SWITCH-SENSOR

 EATON/CUTLER-HAMMER E65PST E65 PHOTOELECTRIC CONTROL UNIT SENSOR WITH TIMER

 EATON/CUTLER-HAMMER ES1DP2 PROGRAMMABLE PHOTOELECTRIC HEAD

EATON/CUTLER-HAMMER F320050A 3 POLE 50 AMP CIRCUIT BREAKER

 EATON/CUTLER-HAMMER NXOPTBB NXOPTBBV OPTBBV 9000X SERIES DRIVES OPTION BOARD

 EATON/CUTLER-HAMMER QCGF2040 2 POLE 40 A/AMP GFI GFCI GROUND FAULT CIR. BR.

 EATON/CUTLER-HAMMER V200 V201 SIZE 5 VACUUM INTERRUPTER BOTTLE

 EATON/CUTLER-HAMMER WMS3C25 3 POLE 25A/AMP CIRCUIT BREAKER PROTECTOR

 EATON/CUTLER-HAMMER XTAR007B21A001 STARTER 110/120 V COIL 2N.O.1N.C.

 EATON/YALE/TIMBERJACK 011028500 COIL

 EATON-CUTLER-HAMMER CH8R RAINPROOF 8 SPACE 100A/AMP ENCLOSURE

EBC Brake Shoes EBC347 347 Honda Fourtrax Rancher Foreman Rubicon

EBC FA452X X-Series Carbon Brake Pads for Polaris Ranger RZR

 EBM-PAPST A2D165-AD02-01 AXIAL FAN 220/380V GERMANY

 EBMPAPST RRL152/0020A92-3030LH-197 BLOWER MOTOR DRYER 230/240V

ECCO Model 530 Back Up Alarm 102dB(A) 12-24VDC

ECCO Model 530 Back Up Alarm 102dB(A) 12-24VDC **

ECCO Model 585 Back Up Alarm 97dB(A) 12 to 48 VDC

ECCO Model 585 Back Up Alarm 97dB(A) 12 to 48 VDC **

Echlin Napa Ignition Coil for Toyota 4runner Camry Rav4 Tacoma Solara

Echo 69500121432 Brushcutter Blade 8" Diameter 80-Tooth 1" Arbor

Ecolab 6102448 TruPower Dish Machine Rinse Additive Heavy Duty 1 Gal / 3.78L