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

CE15DNS3AB - Eaton - Contactor

CE15ENS3AB - Eaton - Contactor

CE15FNS3AB - Eaton - Contactor

CE15GN3AB - Eaton - Contactor

CE15KN3AB - Eaton - Contactor

CE15LN3A - Eaton - Contactor

CE15MN3A - Eaton - Contactor

CE15NN3A - Eaton - Magnetic Contactor

CE15RN3A - Eaton - Contactor

CE15SN3A - Eaton - Contactor

CE55DN3AB - Eaton - Contactor

CE55JN3AB - Eaton - Contactor

CE55KN3AB - Eaton - Contactor

CE55NN3A - Eaton - Magnetic Contactor

CEB Electronica SAW3-CCC/1040

CEC POWER SUPPLY EUPS-30A ONLY

CED63B060L - Siemens - Molded Case Circuit Breaker

Cedes S2S-AEF2I-KH12-ACD Safe2+ Safety Light Curtain Emitter 1500mm Barrier

Cedes S2S-ARF1L-KH12-ACD7E Safe2+ Safety Light Curtain Receiver 1500mm Barrier

Cedes S2S-ARF2I-KH12-ACD Safe2+ Safety Light Curtain Receiver 1500mm Barrier

CEG MT90SA20MLT 2 HP MOTOR

CEG MTFHC112MA2/2 Elektro Drive Intorq Brake Motor 5.5Hp 3480 RPM 230/460V 3PH

CELERITY ACX AdapTorr ACX2201S1

CENTERLINE CLWG-9644-659 WELD GUN

Centrifugal fan 16" dia w/century 1.5HP 3PH 850RPM electric motor

Century Saunders Diaphragm Valve 3" Flanged Air Actuated Rubber Lined DN80

Century SC-184-KDC Squirrel Cage Induction Motor 1Hp 1150 RPM 208-220/440V 3PH

CEO YAG Laser RB Series Pump Module RB30-1C2-FA1-1021 (1062)

 Ceram Optec RSSS/VBU/7XUV300/330P/SS/2.0M Laser Fiber Cable

CFD63B070 - Siemens - Molded Case Circuit Breaker

CFD63B100L - Siemens - Molded Case Circuit Breaker

CH2L70RP - Eaton - Loadcenter

CH340ST - Eaton - Molded Case Circuit Breakers

Char-Lynn Eaton 243-4015-002 Hydraulic Power Steering Pump CAT Forklift 2EC25

CHARMILLES 8538580L EDM DISPLAY PANEL BOARD

CHARMILLES CT8132670C / CAI94V0 EDM CIRCUIT BOARD

Chatillon Digital Force Gauge Model DFI 200

Chauvin Arnoux CA 8310 Power Harmonics Analyzer SAMEDAY SHIP

CHB115GF - Eaton - 15 Amp GFCI Circuit Breaker

CHEMETRONICS 70100449 100W 24V POWER SUPPLY

Chesterton 180-16 Single Cartridge Seal 2" w/ Throttle Bushing 4-Bolt Stainless

CHF115ST - Eaton - 15 Amp Molded Case Circuit Breaker

CHF130ST - Eaton - 30 Amp Molded Case Circuit Breaker

CHIKUMA FREEDOMmkII CP-212-03 FPD lighting inspection device

 CHINO  KR2S00 Graphic recorder KR2S2P-NOT

CHINO 2P10773 1 RECORDER + EH-01001 + 22005-416203-2 + 22005-416201-2 +...

CHINO KR2S00 Graphic recorder KR2S2P-NOT

CHKD3400F - Eaton - Frame

CHLD3600F - Eaton - Frame

Chloride 12RR-255-2 Lift Truck Charger 24V 255AH LA 12 Cell Battery 230/460V

CHMDL3800F - Eaton - Frame

CHN215GF - Eaton - GFCI Circuit Breaker

CHN240GF - Eaton - GFCI Circuit Breaker

CHN250GF - Eaton - 50 Amp Ground Fault Circuit Breaker

CHNT2020 - Eaton - Molded Case Circuit Breakers

CHOM115AFI - Square D - Molded Case Circuit Breaker

Chore Time 49731 Cast Aluminum 52" Fan Propeller 3 Blade Bore 1-9/16"

CHPSURGE - Eaton - Surge Protection Device

Christensen LX15 C 15" Industrial Display Series C

Chromalox 20Kw Immersion Heating Element TMI-6205

CHROMALOX 342155550 PROCESS CONTROLLER

Chromalox EMTI-3075E2 Screw Plug Immersion Heater Element 480V 7.5kW 3PH 42"

CHROMALOX FPFA00403/15 HEATING ELEMENT 155-305998-112

CHSPT2ULTRA - Eaton - Surge Protector

CIMR-JA4A0009BAA Inverter Yaskawa Electric

Cincinnati electrosystems 612A-SI  keypad

Cincinnati electrosystems 612A-SI keypad

CINCINNATI MILACRON 12300856/6SC61015BZ SIMODRIVE RACK   

CINCINNATI MILACRON 1267446 CIRCUIT BOARD

CINCINNATI Milacron 16350174 Power Supply

CINCINNATI MILACRON 3 542 1166A SXCPU2 COMPUTER PC BOARD

CINCINNATI MILACRON 34242034A ACRAMATIC 950 DRIVE UNITFOR SALE

CINCINNATI MILACRON 34242079A CARD CHASSIS

CINCINNATI MILACRON 35314084A REV A CIRCUIT BOARD  

CINCINNATI MILACRON 35314337A BACKPLANE CIRCUIT BOARD  

Cincinnati Milacron 3-533-0154G PLC Slot Card Circuit Board Module

CINCINNATI MILACRON 35330263G CIRCUIT BOARD  

Cincinnati Milacron 3-533-0668G Thermocouple Module Circuit Board Module

Cincinnati Milacron 3-533-0668G Thermocouple Module Rev A Circuit Board

Cincinnati Milacron 3-542-1252A CAF Output Circuit Board Rev B

Cincinnati Milacron 3-700-0141A Logic Processor Rev F PLC Programmer

Cincinnati Milacron 3-700-0190A 16 Slot Control Rack 115 V 1 Ph 3 Amp

Cincinnati Milacron 3-700-0211A PLC Chassis 10-Slot Rack Power Supply 115V 1PH

CINCINNATI MILACRON 4.531.0200A REV B CONTROL PANEL (BROKEN KEY)  

CINCINNATI MILACRON 850SX ACRAMATIC CNC CONTROL UNIT

CINCINNATI MILACRON ACRAMATIC 850SX panel model LCD121-018  

CINCINNATI MILACRON ACRAMATIC 850SX panel model LCD121-018

Cincinnati Milacron Chassis Case PSU Backplane 10-slot

Cincinnati Milacron CNC Machine Gear Drive Shaft & Hub Replacement Parts

Cincinnati Milacron MBA 3 531 4442A Circuit Board

Cincinnati Milacron PCB Power Module 3-424-1894A (S8L2)

Cincinnati Milacron Sabre 1000 Y Axis Ball Screw W/Nut CNC 38" OAL

CINCINNATI MILACRON SIEMENS 3-720-0159A   ON REQ

Cincinnati Steel Ball Screw Shaft 50mm Dia 50mm Lead Aluminum Nut

CINCINNATI TEST SYSTEMS M244DENPH3000  SENTINEL  

CIPR-GA70A2211ABAA-CAAAAA Inverter 45 kW, 200 V, Yaskawa Electric

Circuit Board Siemens 6ES7315-2AF03-0AB0 SIMATIC S7-300 CPU 315-2

CJ1W-PA202 FQM1-CM002 PLC MODULE

 CKD CORPORATION SCA2-LB-40B-615 PNEUMATIC CYLINDER

CKD CORPORATION SRL2-LB-32B-500-MOH3D-FL204480 CYLINDER  

CKD CORPORATION SRL2-LB-32B-500-MOH3D-FL204480 CYLINDER

 CKD Cylinder SCM-50B55 for Mori Seiki U41306C01

CKD FAB41-8-5-12HSB

 CKD SCM-50B50 Air Cylinder

 CKD SCM-50B55 Air Cylinder

 CKD SSD-KL-50-70 Cylinder

CKD3400F - Eaton - Molded Case Circuit Breaker

CL-10 CNC Lathe 3-Jaw Power Chuck 10" Dia 4000 RPM

Clapp-Haney Shell Mill Cutter 7 Station W/PCD Inserts W/Box

Clark 2795630 Traction Motor 36VDC

Clark 2807845 | 2792684 Hydraulic Pump Motor 36VDC NPR20 Reach Truck Forklift

Clark 2809540 36/48VDC W/351 303 000 Hydraulic Pump

Clark 4 Spool Hydraulic Control Valve Assembly for ECS Series Forklift

Clark C-561325X8965A Power Steering Motor /Pump #NP300D 30 24V Electric Forklift

Clark C-561325X8965A Power Steering Motor /Pump #NP300D-30 24V Electric Forklift

CLARK CONTROLLER 30U34 BULLETIN 6030 SIZE 4 REVERSING STARTER

CLARK CONTROLLER B30U32 BULLETIN 6030 SIZE 2 REVERSING STARTER   FREE SHIP

Clark Fork Lift Electric Motor 36/48VDC W/Parker 3349111877 Hydraulic Pump

Clark NP300D 30 24 volt Electric Forklift Controller/Contactor Assembly #2394149

Clark NP300D-30 24 volt Electric Forklift Controller/Contactor Assembly #2394149

Clark NP300D-30 24v Electric Forklift Rexroth S15S7AH13R Hydraulic Pump /Motor

Clark P56SD700 Forklift Electric Motor 36/48VDC W/Barns 6392 Hydraulic Pump

CLB-0914 Oil Cooler Heat Exchanger 4 Pass Shell Tube Type 5.5"x35.5"

CLECO 0009-DOXF PNEUMATIC, GRIPPER / CLAMP HAND HELD

Cleveland 84-0-32868-3 Size 35E Series 39 Worm Gear Speed Reducer 5 X 1 Ratio

Cleveland C42C00E00A00 Permanent magnet Servo Motor 60 Lbs/In 115V 1900RPM

Cleveland Electric Wire 16 Gauge High Temp Wire Stranded 3956' Lot

CLEVELAND MACHINE CONTROLS M655N 230VAC 1PH 5HP DC DRIVE

Cleveland Machine E6C0110A1B0LP0R Vintage Brushless Permanet Magnet Servo Motor

Cleveland Machine E6C0110A1D0000A Vintage Brushless Permanet Magnet Servo Motor

Cleveland P120480 Fan Cooled Speed Reducer 40RF 25A 6-1 Ratio 14.3HP 1750 RPM

Cleveland Tramrail 35M049T482G2 Crane Motor 3/4Hp 1725 RPM 230/460V 3PH 56YZ