1950172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

RBU-20PRCP PISTON ROD CLEVIS RIDAPTER TOOL RFJ20 CLOVER TOOL CO.

329310 HOBART TORSION BAR ASSEMBLY 00-329310

LP3S STREAM LINE FEDERAL SIGNAL 12-48VDC SERIES B GREEN TYPE 4X

QUINCY COMPRESSOR 2013400282 OIL FILTER

29215 EMERGENCY STOP BOOT KIT INGERSOLL RAND

1 1/4" VALVE CHECK INLINE - FOR BACKUP STABBER REXROTH R900420511

206-889 ROHS LED PANEL INDICATOR LIGHT RED LOT OF 17

206-924 ROHS LED PANEL INDICATOR LIGHT GREEN LOT OF 16

PS1824 LUBRICATOR PUMP SERVICE KIT VHP15 TYPE:5415

MI100 CARLO GAVAZZI CURRENT TRANSFORMER

PBFBKAN SUN HYDRAULIC PILOT-OPERATED PRESSURE REDUCING VALVE (NOV P.NO 72948)

RSFCLAN HYDRAULIC VALVE SUN HYDRAULICS

A4491-SKT-002 HYDRALOK SEAL KIT LOT OF 14

999-05-1047 AUTELDAC 4 GAI TRONICS KEYPAD PCB

20020891 NOV SHAFFER TOOL SPANNER 1-1/2" SL SB CHECK VALVE

VINTAGE GENERAL MOTORS ELECTRO-MOTIVE DIVISION 12-645-E1 DIESEL ENGINE NAMEPLATE

17808-003 DEMCO SEAL KIT FOR PISTON ACTUATOR

714-2530 SEAL KIT 5K714-2530

1055093 PISTON ASSY MC HYDRAULIC AIR OIL PUMP 10-550-93 (199734-36)

S-436 STEAM PACKING 4" OTECO

476-0250-644 MECHANICAL SEAL KIT 341 A 4x4 AURORA PUMP 4760250644

VRKN1200 REPAIR KIT SOLINOID VALVE 3/4" MODEL 10000

99-04004 REPAIR KIT AIR CYLINDER

1-307-15-130 LIQUID TURBINE FLOWMETER INTERNAL ASSY 1931454-01 HYDRIL

02250168-084 OIL FILTER SULLAIR AIR COMPRESSOR REPLACEMENT FILTER

STRAIGHT OUTPUT 0608800073 REXROTH 956000010

P-055474-00004 REXROTH R431003742 PNEUMATIC VALVE REPAIR KIT

9750151 SEAL KIT FOR STAFFA HYDRAULIC MOTOR

7515140 FILTER REPLACEMENT 18034055 ( R-7515140 )

9200-3128 ECOLAB PWB PCB

AYU901-2127G N-16KTS OKI PHPCB CARD

77396 O-RING REPAIR VALVE KIT 30099 PH-60D PRKER

77395-2 REPAIR PACK SEAL VALVE CARTRIDGE SUN HYDRAULICS

AIR BRAKE DIAPHRAGM 7" DIAMETER TYPE 24

646886-02 TORQUE PIN THERADED FOR SSMC

40039282 EMD J GASKET ELECTRO-MOTIVE EMD LOT OF 10

3002-2121 SEAT KOOMY

AFL9903W NBR PNEUMATIC ACTUATOR SPARE PARTS KIT

1000-4351 KOOMY BLADDER ACCUMULATOR

207675 KIT SEAL FOR LOCK BASE CYLINDER G-6781-94109 EATON VICKERS

8028098 INJECTOR CLEVIS PIN ELECTRO-MOTIVE EMD 2

9571659 GASKET ELECTRO-MOTIVE EMD 00

9317972 SEAL O RING WATER OUTLET ELECTRO-MOTIVE EMD LOT OF 150

371506 WOODCO WASHER OUTER FOR 5 HUB CLAMP 5K BOP LOT OF 16

18929 SPRING BELL CRANK TYPE HGG 500T VARCO

R10702-2 REPAIR KIR SOUTHERN CALIFORNIA HYDRAULIC

2185053-01-99 REPAIR KIT DRG VALVE 1/4" 5000WP

C61 KIT REPAIR STANDARD MORSE STARRET HYDRASHEAR

NORGREN L17-800-MPDG AIRLINE LUBRICATOR

4170-44-01 IMPELLOR 8 1/2" , 602208647 IMPELLER NOV MISSON CENTRIFUGAL PUMP

1850040 KENNAMETAL BB1850040 SEGMENT 3873846 MADE IN GERMANY

11476000-001 KIT SEAL NOV-NATIONAL

PM-1003 THRUST BEARING 1IN

98516.1118 SOLENOID VALVE 1/4" BSPMISCELANEOUS

YBG214NL LINK-BELT 7/8 BORE REXNORD

BINKS - 0115-010303 FX12 FLUID SECTION SEAL KIT

33CS2PPRH-02 CARRIER EDGE TSTAT PROG AC/HP 2 SPEED W/ HUMIDITY (ITEMS PER PHOTO)

D10-KRING INGERSOLL RAND RING KIT MADE IN USA

6321 SECURITY SWITCH FOR VALENTINE ELEMENT MODEL 2200

SK958767 SEAL KIT SWING CANTROL VALVE V50

R0225 BLODGETT DOOR INTERLOCK SWITCH

785292-1 HOBART TEMPERATURE PROBE SENSOR

CA1941314 VALVE SUCTION CLOVER TOOLS DISCHARGE HP EK SERIES CTU-20P-D2 UNIT LOT3

40145634 EMD VALVE BRIDGE AND LASH ADJUSTER ELECTRO MOTIVE DIESEL

WPF7U-189-020T ZE-UP PROTECT THERMOSTAT FSTB

9544292 MEIKO DETERGENT PERISTALTIC DOSING PUMP TYPE PP

790000015 COUPATAN TIMER 610238

KD70022 BARKSDALE VALVE SEAL REPAIR KIT

7602-2130-91 OIL SEAL FOR EMSCO T-3750 ROTARY TABLE 8947LPD RUBBER SEAL

CRIAPBM5 CIRCUIT BREAKER CURRIER ROSER 80210355

1/"8 GREASE FITTING 204220 8

KTK-1 BUSSMANN EATON FUSES (600 V)

D08P METSO AUTOMATION DIGITAL OUTPUT MODULE D201129, DO8, D08P

BR17A6 EAGLE SIGNAL CONTROLS WASH TIMER BR17A6 6TM

BR15A6 EAGLE SIGNAL CONTROLS WASH TIMER BR15A6 6TM

103688-3 HOBART Z669300048 THERMOSTAT FOR HOBART

4543415 DRAGER POLYTRON TX TRANSMITTER SENSOR

303-042-270 INDUSTRONIC PCB 303-042-200

PT205-HEC PEM-TECH SOLID STATE GAS SENSOR PCB DISPLAY

PT205 PEM-TECH SOLID STATE GAS SENSOR PCB DISPLAY

FP-424C GAS MONITORING SYSTEM DETCON

LB232 COIL ALLIANCE 240 VOLT W/TERMINALS

1-40035126 EMD BUSHING 1-1/2 INCHES ELECTRO MOTIVE DIESEL

SUN HYDRAULICS MANIF BLOCK 0JH7-AB

1006882-1 LOWER SEAT 5-1/4" HYDRIL KELLYGUARD DRILL

INV-03795-19 HEATER FOR DRAIN PIPE TAS 20/220 VAC 110W, 30181/6

ZBV-B3  SCHNEIDER ELECTRIC PUSHBUTTON GREEN LIGHT MODULE ZBVB3 LOT OF 7

ERM-3 TOYO KEIKI 3 PHASE WATT CONVERTER

GW-FILTER-KIT GAS DETECTOR ACCESSORIES INTERNATIONAL LOGGING CANADA

262-DDVU CROMPTON DIGITAL PANEL METER ( )

32456212 SHAFT PRIMER HAMWORTHY

30154362 SMALL BORE BEARING SHIELD  FOR TDS

DETCON MODEL 10 COMBUSTIBLE GAS SINGLE SENSOR DIGITAL CONTROL PCB MODULE CG-10

KMW 582030-A PCB CARD

74238-2 QUICK RELEASE VALVE/MUFFLER FOR VARCO SSW 40 PIPE SPINNER

FDK2-F2 APPLETON REPLACEBLE TUMBLER SWITCH

5H40-103 CONNECTING ROD CARRIER 5H40103 CARLYLE VOLTAS

HOUSING FOR GLB-25-3 OIL SERVICE PUMP

55X85X10 SEAL LIP SHAFT RADIAL SKF INDUSTRIES HMSA 10V LOT OF 6

FPBL LLLUMINATED PUSHBUTTON SWITCH YS NPBL2-DL24

98650.1190-385 AIR ENERGY SAFETY VALVE MADE IN ENGLAND

77667-1 HOBART ADJUSTING RING 4812 HOBART

00-118960 HOBART PUMP INTAKE SHROUD 118960

ROXTEC STAYPLATE 120 LOT OF 10

BALLUFF 516-327-E4-Y-01 SENSOR

ROSEMOUNT 23984-00 PCB CIRCUIT BOARD REV H

42495911 INGERSOLL RAND INLET VALVE CYLINDER

646229 FESTO FILTER BOWL  /

800H-BP2AR ALLEN BRADLEY TYPE 79 PUSH BUTTON BLACK 800H (81446-6R)

1290114 SHIM, CROSSHEAD PIN RETAINER MAKE NOV LOT OF 6 SET (1 SET 2EACH)

176408 SET OF PACKING RINGS FOR VALVES HATLAPA

CAMFIL FARR 852 BREATHER FILTER MADE IN CANADA

27906 BEARING CUP FOR CH-240 BRADEN HOISTS LOT OF 6

38200-2110 SAFETY-RELIEF VALVE FLUID MECHANICS

DN-UT-2DMB TIMER/COUNTER KONDA ELECTRONIC INDUSTRIES CO LTD ( )

AP90 AUTOCLAVE HIGH PRESSURE PLUG

TOTCO 6 REG 6 5/8" BAFFLE PLATE RING TYPE P/N. 191705

6 5/8" 5S BAFFLE PLATE SPIDER TYPE P/N. 191723

73090 BALL BEARING FOR NOV VARCO SPINNING WRENCH SSW-40

74731 CHECK VALVE FOR NOV VARCO SSW 40 SPINNING WRENCH

307035-06-88 SEAL KIT VALVE 1/4" 4WAY HYDRAULIC PILOT

98650.1535 COMPAIR DIAPHRAGM SERVICE KIT LOT OF 6

6I-1564 DIAPHRAGM CATERPILLAR 6L1564 LOT OF 10

UGP-1QW KILLARK EXPLOSIONPROOF PLUG

UGP-1QW KILLARK EXPLOSIONPROOF PLUG

51459 ‘O’ RING 03980588 INGERSOLL RAND

816968 VALVE REPAIR KIT

TECHNO CHECK VALVE CAT NO 2.5 PRESSURE-150PSI

8379503 CRANKCASE VALVE REPAIR KIT EMD ELECTRO-MOTIVE DIESEL

CHART RECODER PEN BLUE CLOVER TOOL CO.  PACK (1 PACK X 6 PEN)

25003375-375 PARKER CHOKE  KILL POLYPAK SEAL LOT OF 19

164-5524 GENERATOR SIGNAL CATERPILLAR 1645524