1497A-A8-M18-0-N板卡船舶半导体工控备件优势经销

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；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，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。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

WHEELOCK RSS-24177W-FR RED WALL MOUNT 177 CD STROBE

WHITE LIGHT WLES18-36 EMERGENCY POWER PACK

 White Martins Praxair C-35 Torch

White Rodgers 90-T75C3 Transformer 120/208/240VAC Primary 24VAC 3.12A Secondary

White Rodgers E12 Type 261-204 Thermostat 265°F SPST 120-240VAC 22A 6' Capillary

Whitey SS-43XF4 Stainless Steel Ball Valve, 3-Way, 1/4in Female NPT, 2500psi Max

Whitman Controls P117G-3H-C12L-DIS Pressure Switch, 1.6-30PSI, 1/8in NPT, 125VAC

Whitman P605-1-C12L-DIS Pressure Switch, SPST, Pressure: 400-1500psi, 1/4" NPT

WHPX 407 Alfa Laval Centrifugal Separator Heavy Marine & Industrial Oil Purifier

Widia GTD VTSFT8007 Spiral Flute Tap 3/4"-14, 4 Flute NPT Thread

WiegmannR Type 4X Fiberglass Enclosure, 10" x 8" x 4"

Wiegmann PBXD3 Steel Pushbutton Enclosure Box, Gray, 3-Hole 30mm Type 4/12/13

Wieland NGZ 110 R2.067.0050.0 Time relay  

Wieland WRS-REL-2W-250V5A 80.010.10030.0 Relay Module 24VAC/DC 5AMP

Wiha 2850 26051 Fixed TorqueFix Screw Driver, 2.0Nm RH, 4mm Hex Drive

Wika 0-100 Bar, 0-400 Bar Gauges Hydro Rene Leduc Pressure Test Kit

WIKA 232.50 100MM 0-580 PSI 0- 4 MPA G1/2B UNTEN PRESSURE GAUGE

Wika 232.50.100 0.6 Bar Bourdon tube Pressure Gauge Item no. 9510257

Wika 233.50.100 0.6 Bar Bourdon tube Pressure Gauge

Wika 233.50.100 0.6 Bar Bourdon tube Pressure Gauge Item no. 9354310

WIKA 233.52.100 821.2.2.2 Gas Pressure Temperature Density Monitor Ala

WIKA 233.52.100 821.2.2.2 Pressure Temperature Density Monitor Ala

WIKA 432.12 SEALGAUGE 432.12.160 -1000...0 mm 4005715

Wika 57464 00 Medical Regulator Blood Gas, High Pressure 1/4" NPT 21000kPa Inlet

WIKA 733.14.100 0-60 KPA DIFFERENTIAL PRESSURE GAUGE RMO45231116

WIKA 821-11 14-101 TEMPERATURE GAUGE W/ ALA

Wika 8348868 891.13.500 Pressure Transmitter Sensor, 0-50psi, 10-30VDC, 4-20mA

Wika 8348868 Pressure Transmitter Series 0-50PSI 10-30VDC Signal 4-20mA S-10

Wika 8348868 Pressure Transmitter Series 0-50PSI 10-30VDC, Signal 4-20mA S-10

Wika 8348868 S-10 Pressure Transmitter Sensor, 0-50psi, In 10-30VDC, Out 4-20mA

Wika 891.01.1998 Differential Pressure Transmitter Tronic Line 10-30VD 0-250mbar

Wika 891.01.1998 Tronic Line Differential Pressure Transmitter 0-250mbar 10-30VD

Wika 891.01.1998 Tronic Line Differential Pressure Transmitter 0-100mbar 10-30VD

Wika 891.01.1998 Tronic Line Differential Pressure Transmitter 10-30VD 0-250mbar

Wika 891.13.500 Pressure Transmitter, 0-15psi, 10-30VDC Supply, 4-20mA Output

Wika 891.34.1998 Tronic Line Differential Pressure Transmitter 0-250mbar 0402

Wika 891.34.1998 Tronic Line Differential Pressure Transmitter 0-100mbar 0504

Wika 891.34.1998 Tronic Line Differential Pressure Transmitter 0-100mbar 0901

WIKA 9318259 Brass Liquid Filled Pressure Gauge Back Mount, 1/4"NPT, 0-1500psi

Wika Bourdon Tube Pressure Gauge 100mm Diameter 0-600bar G1/2B Thread

Wika ECO-1 Pressure Transmitter 0-10bar Range, 4-20mA Output, 10-30VDC, 1/4"NPT

Wika ECO-1 Pressure Transmitter 0-15Psi Range, 4-20mA Output, 10-30VDC, 1/4"NPT

Wika Econosto Differential Pressure Gauge 0-4 bar 711.11.100 2xG1/2B 216509

WIKA EN 837-1 316 SS kPa PRESSURE GAUGE

 Wika EN837-1 Liquid Filled Gauge Range 0-6 Bar

WIKA GDM-100 233.52.100 821.2.2.2 Gas Pressure Temperature Density Monitor

Wika IS-20-S - BBQ AZGDL 12462188 Pressure Transmitter 0-250bar 4-20ma 10-30vdc

Wika IS-20-S Pressure Transmitter 12177050 S 1106FVFT 0-10BAR

WIKA IS-20-S-SBH-GD-AZKAXZ9Z1-ZZZ Pressure Transmitter, 0-87PSI, 10-30VDC

 Wika Liquid Filled Gauge 21064932 Article no-9022570 Range 0-4 Bar

 Wika LIquid Filled Gauge Model 213.53.100 -1 to 3 Bar Article no- 9022490

 Wika Liquid Filled Gauge Model 213.53.100 10 Bar Article no- 9022597

Wika M932.2C-A-PG321Z-U-A81A2 Sanitary Gauge, 0-30psi, 3/4in Tri-Clamp

Wika PSD-4 Electronic Pressure Switch w/Display 0-500psi, 15-35VDC, 4-20mA Out

WIKA S-10 50318063 Pressure Transmitter 10-30VDC 1/4" NPT With Cable 0-10 PSI

Wika S-10 Pressure Transmitter, 0-15psi Range, 10-30VDC Supply, 4-20mA Output

Wika S-20 Pressure Transmitter, -1...24bar, 4-20mA, 8-35VDC, 1/2NPT, 1480bar Max

Wild Heerbrugg Wild M8 Stereoscope Trainer, 6x-50x Magnification Microscope

Wilden 01-3181-20 M1 Pneumatic Operated Double Diaphragm Pump AODD

Wilden 15-23330-23 2in Package Genuine Wilden PartsExpeditepin

Wilden 25MM 1" P220 P230 Double Diaphragm Pump Metal Pro-Flo Bolted AODD

WILDEN A2 Accu-Flo Metal Clamped Pump 25 mm (1") AODD Diaphragm Air-Operated

Wilden Diaphragm 8 Pump 2" (51 mm)

Wilden M1 Pneumatic Operated Double Teflon Diaphragm Pump M1/PT/TF/TF/KT 1/2in

Wilden P.025 Pro-Flo Series Clamped Metal Pump, 5GPM, 125PSIG, 1/4in NPT

Wilden P2 Double Diaphragm Aluminum 25MM 1" Pro-Flo Series Bolted AODD Pump

WILDEN P2 Pro-Flo Ser Clamped Metal 1"25 mm AODD Diaphragm Pump Air Inlet 1/4"

WILDEN P2 Pro-Flo Ser Clamped Metal AODD Diaphragm Pump Air Inlet 1/4" / 1"25 mm

Wilden P200 Air Operated Double Teflon Diaphragm 25mm 1" Pro-Flo Serie AODD Pump

Wilden Pump 8 Diaphragm Pump 2" Aluminum Body

Wilden Pump 8 Diaphragm pump Aluminium 51 mm 2" inch

Wilden Pump P4 Double Diaphragm Aluminum (38 MM) 1.5" Metal AODD Pneumatic

Wilden Pump P8 Air Operated Double Diaphragm Pump 51 mm (2") Pro-Flo AODD IMPA

Wilden PumpM1 Air Operated Double Diaphragm Aluminum Part No. 5.362.212

Wilden XPR260 S02-0076 Bolted Metal Aluminium BUNA-N Air Double Diaphragm Pump

Wilden XPR260 S02-0076 Bolted Ser Aluminium BUNA-N Air Double Diaphragm Pump 1''

WILDEN XPX200 1″ 25 mm Air Operated Double Diaphragm Pump Metal AODD Adanced Ser

WILDEN XPX200 1″ 25 mm AODD Air Operated Double Diaphragm Pump Metal Adanced Ser

Wilkerson B08-02-CKG0 Filter Regulator 0-30psig 73scfm, 5µm Filtration, 1/4" NPT

Wilkerson C04-01-B00 Consolidation Filter/Regulator, 150 PSIG, 1/8" NPT

Wilkerson DIS471 DC Input Process Indicator, Input 4/20mAdc, 115V AC

Wilkerson DM4130 Thermocouple Isolated Transmitter, 115VAC IN, 0/10VDC OUT

Wilkerson E18-04-EC00uick Dump Valve, 24VDC, 150psi Max, 1/2" NPT

Wilkerson F18-04-SL00 Pneumatic Filter, Pressure: 250psi Max, Ports: 1/2" NPT

WILKERSON F23-C4-000A Pneumatic Exhaust Muffler, 1/2"NPT, 150PSI Max

Wilkerson M18-02-DL00 Coalescing Oil Filter 0.003µm Activated Carbon, 1/4" NPT

Wilkerson M18-04-DL00 Pneumatic Filter, 0.003 Micron Element, 150psig, 1/2in NPT

Wilkerson M21-03-000B Pneumatic Filter, 3/8in NPT, 0.01µm, 150psig, 95.4CFM