0190-01471船舶半导体工控备件主板供应

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

 ALLEN-BRADLEY 802T-AW2 SER D LIMIT SWITCH

 ALLEN-BRADLEY 802T-C LIMIT SWITCH

 ALLEN-BRADLEY 802T-CTE SER.B LIMIT SWITCH

 ALLEN-BRADLEY 802T-CWP SER H LIMIT SWITCH

 ALLEN-BRADLEY 802T-K1P SER.F LIMIT SWITCH

 ALLEN-BRADLEY 802T-KS6 SERIES D LIMIT SWITCH

 ALLEN-BRADLEY 802T-KU SER.C LIMIT SWITCH

 ALLEN-BRADLEY 802T-P LIMIT SWITCH

 ALLEN-BRADLEY 802T-R5TDW1 SER.2 LIMIT SWITCH

 ALLEN-BRADLEY 802X-C4 SER.C LIMIT SWITCH

 ALLEN-BRADLEY 803-D2 ROTARY LIMIT SWITCH

 ALLEN-BRADLEY 803-D2-N16 CAM ROTARY LIMIT SWITCH

 ALLEN-BRADLEY 804-A2 MASTER SWITCH ROTARY TYPE

 ALLEN-BRADLEY 806-A102 SERIES A DRUM SWITCH

ALLEN-BRADLEY 808-GL1A4 SPEED SWITCH RANGE 15-60

 ALLEN-BRADLEY 808-LA44 LOCKOUT RELAY 440V COIL

 ALLEN-BRADLEY 808-R4 SER.F ZERO SPEED SWITCH

 ALLEN-BRADLEY 810-A16A OVERLOAD RELAY 100A

 ALLEN-BRADLEY 810-A26C SERIES B OVERLOAD RELAY OPEN TYPE

 ALLEN-BRADLEY 815-DOV15 SERIES K OVERLOAD RELAY

 ALLEN-BRADLEY 836-A101X1 PRUSSURE SWITCH

 ALLEN-BRADLEY 836-A1A SER.A PRESSURE CONTROL SWITCH

 ALLEN-BRADLEY 836T-N12 PRESSURE CONTROL ADJUSTMENT KNOB

 ALLEN-BRADLEY 836T-T243J PRESSURE SWITCH

 ALLEN-BRADLEY 836T-T251JX5 PRESSURE CONTROL SWITCH

 ALLEN-BRADLEY 836T-T251JX9 PRESURE SWITCH

 ALLEN-BRADLEY 836T-T256JX9 PRESSURE CONTROL SWITCH

 ALLEN-BRADLEY 836T-T351J SER.A PRESSURE SWITCH

ALLEN-BRADLEY 837-A6A TEMPERATURE CONTROL 140-300°F

 ALLEN-BRADLEY 837-V3J THERMOSTAT TEMPERATURE CONTROL SWITCH

 ALLEN-BRADLEY 840-DS1 SER A AUTOMATIC FLOAT SWITCH

 ALLEN-BRADLEY 845H-SJHZ14CRY2C INCREMENTAL ENCODER

ALLEN-BRADLEY 845K-SADZ25-CKY3 OPTICAL INCREMENTAL ENCODER

 ALLEN-BRADLEY 849-ZOD33 SERIES B PNEUMATIC RELAY

 ALLEN-BRADLEY 852S-A SER.G SOLID STATE TIMING RELAY 110/120 V COIL

 ALLEN-BRADLEY 852S-C SER.G SOLID STATE TIMING RELAY

 ALLEN-BRADLEY 855-B10FN4 RED LENS STACK LIGHT 120V

 ALLEN-BRADLEY 855-BPM10 STACK LIGHT MOUNT BASE

 ALLEN-BRADLEY 855TG-BPM10 TOWER STACK LIGHT MOUNTING BASE BLACK 70 MM

 ALLEN-BRADLEY 870M-ZOD94 MOTION DETECTOR 10-25RPM

 ALLEN-BRADLEY 871F-PW40BP80-D4 PROXIMITY SENSOR

 ALLEN-BRADLEY 871L-E20EP40-D4 INDUCTIVE PROXIMITY SENSOR

 ALLEN-BRADLEY 871L-XPB15S40 PROXIMITY LIMIT SWITCH

 ALLEN-BRADLEY 871R-D12NP39-E2 INDUCTIVE RING SENSOR PNP 10-30V-DC

 ALLEN-BRADLEY 871TM-B5N15-N3 INDUCTIVE PROXIMITY SENSOR

 ALLEN-BRADLEY 871Z-BW10N30-R3 INDUCTIVE PROXIMITY SENSOR

 ALLEN-BRADLEY 872C-D5NE18-A2 SER C INDUCTIVE PROXIMITY SENSOR SWITCH-SENSOR

 ALLEN-BRADLEY 872C-DX34-D4 INDUCTIVE PROXIMITY SENSOR

 ALLEN-BRADLEY 880L-RA1 RETRO-REFLECTIVE PHOTOELECTRIC SWITCH

 ALLEN-BRADLEY 889N-F3WFNU-12F QD CORDSET 3 PIN MINI STARIGHT 12'FT

 ALLEN-BRADLEY 898D-P54PT-A5 4 MICRO OUTLET JUNCTION BOX DISTRIBUTION

ALLEN-BRADLEY AF236 COIL 110/120V

 ALLEN-BRADLEY BULLETIN 700 BT201A1C AC CONTROL RELAY PRI 120V SEC 24V

 ALLEN-BRADLEY BULLETIN 800H 2HW7-24581 ON-OF STARTER SWITCH ENCLOSURED

 ALLEN-BRADLEY CD236 COIL SIZE 3 100A 110/120V

 ALLEN-BRADLEY CD236C COIL 110/120V SIZE 3

 ALLEN-BRADLEY MODEL CU4 SAFETY RELAY 10 SEC 440R-S23174

 ALLEN-BRADLEY P-B6B6-G3RX I/O COMBINATION PROGRAMMING PORT CONNECTOR

 ALLEN-BRADLEY PHOTOSWITCH 43PR-NAS60FM FIBER OPTIC CABLE SWITCH PR10R 99-803

 ALLEN-BRADLEY SK-20P-S771F MOD SCR 2 1K6V 500A

 ALLEN-BRADLEY SK-20P-S826B FUSE FLUSH END FOR POWERFLEX DC 800A/AMP

 ALLEN-BRADLEY SK-G9-GDB1-D292 PCB POWER INTERFACE BOARD 292A

 ALLEN-BRADLEY SK-H1-GDBD1-F1012D POWERFLEX 700 H/S GATE DRIVER BOARD

 ALLEN-BRADLEY SP-135766 TRANSISTOR KIT FOR 1336 DRIVE

 ALLEN-BRADLEY TESTED 1771-IT FAST RESPONSE DC INPUT MODULE

 ALLEN-BRADLEY Z-34042 CONTACT KIT SINGLE POLE SIZE 5

 ALLEN-BRADLEY Z-34115 CONTACT KIT SIZE 3 1 POLE

 ALLEN-BRADLEY Z-34116 CONTACT KIT 100A/AMP 1 POLE

Alliance / liner 01-27110-023 / 8PK1545 Serpentine Belt

Alliance 01-29729-610 6PK1610 A/C Compressor Serpentine Belt 6-Rib

Alliance 12-4428 Clothes Washer Door Seal Assembly w/ 803840P Lube

Alliance 202025P / 7702168000 MDC TLW Control Board Assembly

Alliance Speed Queen Commercial Washer Shaft Seal 9001134P

Allpax #4 Corkscrew Packing Hook 19" Long 100Y019 / 4LGH7

Almost gone

Alpena 77076 EZLink FlexLED 36" Extension LED Strip White 12V

Altech R Series Supplementary Protector

Alternator USA Ind 7088-2S Reman

Alternator USA Ind 7744-10S Reman fits 89-90 Ford Escort 1.9L-L4

Alternator USA Ind 7744-2S Reman

Alternator USA Ind A1329 Reman

Alto Shaam 5027119 Grease Filter it for Vector H/HH Models

Aluminum Above Ground Solar Panel Mounting Bracket / Clamp

Aluminum Canvas Box Frame 16" x 12"

Aluminum Canvas Box Frame Kit 20" x 16"

 AMANA FRIGIDAIRE Y-68506-47 RANGE GAS VALVE PRESSURE REGULATOR NAT OR LP

 AMCI ADVANCED MICRO CONTROLS 1732H RESOLVER INTERFACE MODULE

 AMCI ADVANCED MICRO CONTROLS SM23-A112D STEP STEPPER MOTOR 200 STEP 4.2VDC

  AMCI DC425-F1N91S DURACODER 4-20 mA ENCODER

AMCI SD17040B STEPPER MOTOR DRIVER 115 V

 AMEC MARTIN 100BTL15H CHAIN SPROCKET

American Cylinder K1500SS-1708

American Dryer GX1 Global Automatic Hand Dryer White Cover ABS

 AMERICAN LED-GIBLE TL-2425-116B NUMERIC MARQUEES W/POWER CORD AND CABLE

American Moving Supplies Door Jamb Banister Hand Rail Padded Protective Cover

Amerock BP40519ORB 256mm Center to Center Bar Pull Oil Rubbed Bronze Finish

 AMETEK 119413-13 2-STAGE VACUUM LAMB BLOWER MOTOR 120V

 AMETEK DNC-T2010-020 DUST CONTROL BOARD W/ CHASIS

 AMETEK NCC CKK-00300-461 TIME DELAY RELAY 3-300 SEC 120V

 AMETEK NCC T1K-0001-461 TIMER 01-10 SEC. 120V

 AMETEK PCE-15 WATT TRANSDUCER

 AMETEK PXLX-REMOTE SERIES PNL1-3300-A1BF LEVEL SWITCH

 AMETEK RIS 1072-433 TEST RESET CIRCUIT BOARD MODULE AN-3175 AN3176

 AMI ASAHI MUCF211-38 4-BOLT FLANG STAINLESS STEEL BEARING

 AMI ASAHI MUCFPL204-12 4-BOLT FLANGE BEARING THERMOPLAST 12W HOUSING

 AMI ASAHI MUCPPL208W CORROSION RESISTANT THERMOPLASTIC PILLOW BLOCK BEARING

 AMI ASAHI UCFB210-32NPMZ2 3 BOLT FLANGE BEARING ZINC 2 INCH BORE

 AMI ASAHI UEFPL208-24CEW 4 BOLT FLANGE BEARING 1-1/2" BORE

 AMI ASAHI UKT208+H2308 TAKE-UP BEARING

 AMI MBCTL206W WHITE 2-BOLT FLANGE BEARING STAINLESS STEEL INSERT 30MM BORE

Ami SER207-23 Ball Insert Bearing 1.4375" ID 2.8346" OD 1.6875" W Made In Japan

 AMI-ASAHI UCT208 TAKE-UP-BEARING 1-1/2" BORE

Amico Monitor Mounting Plate 20lbs / 9kg Max Load 18051103GE-8000-MON-00

AMP 220015-1-M Portable Hand Crimping Tool for Coaxial Connectors

 AMPHENOL 310-0532-05 PERCEPTRON CABLE CONNECTOR 39080

Amphenol 97-67-22-12 Circular MIL Spec Strain Relief & Adapter Cable Clamp

Amphenol Oil and Gas 10-730987-000 Contact Clip Compression Hand Tool

Amphenol RJFTV7PEMIG Modular Coupler Connector Jack 8p8c RJ45 to 8p8c RJ45

AMT Pump Replacement Adapter 1608-005-09 4180675

AMT Pump Replacement Adapter 1608-005-09 4180675  -

 ANAND TYPE AVT FUSE 11KV 0-5A/AMP

Anchor Fluid Power CN3/4-1-7 3/4" NPT Inline Check Valve 5700 PSI

Anchor Motor Mount 2767 Ford E-150 E-250 E-350

Ancra 49348-11 Bar Keep Cargo Bar Holder

Anderson 4/0 STR-1000 Bolted Tee Tubing Main to Cable Tap

 ANDOVER CONTROLS ACX-700 BUILDING ACCESS CONTROLLER DOOR CONTROL

 ANDREWS/MPB 3907 K849052 THRUST BALL BEARING

Angles90 Weightlifting / Exercise Net 19"x19" 440lb Load Capacity

 ANIMATICS SM1720DPLS SMART MOTOR VER. 4.77T

Antenna to Antenna Base Adapter M91 5985-01-526-5509

Anti Vibration Spring Mount B-278

Anvil 0361237803 2" x 2" x 2" x 2" Forged Steel Threaded Cross 6000 Series