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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。

PE300BFM LAMP AND MODULE (for PERKIN ELMER)

Y1951 (for PERKIN ELMER)

M525 OH4 LAMP AND MODULE (for LEICA)

NC4 LAMP & MODULE (for CARL ZEISS)

MV-9086 LAMP & MODULE (for ACMI)

CL1426 (for LUXTEL)

CL1736 (for LUXTEL)

ENDOLIVE SUPERLUX 301 LAMP & MODULE (for CARL ZEISS)

RT777 (for DHC BATTERY TESTERS)

R007200556 (for VARIAN)

PRO STAR 32ENON (for VARIAN)

I410 (for FLUKE)

( FBO24841K (for SYLVANIA)

( SYLVANIA FBO24/841

 LISTING( FBO24841 (for SYLVANIA)

 LISTING( FBO24841 (for OSRAM SYLVANIA)

 LISTING( OSRAM SYLVANIA FBO24/841

AH-CD30101 LAMP & HOUSING (for EIKI)

(12) F35CWU6WM (for )

UXR300VAC300FC5 (for USHIO)

 LISTINGUXL351E0 (for USHIO)

402000353 (for WATERS)

DD25TZ (for DEUTERIUM)

A6211W (for INTERNATIONAL)

SUPERLUX 300 LAMP & MODULE (for CARL ZEISS)

SUPERLUX 301 LAMP & MODULE (for ZEISS)

 LISTINGBXT65750 BATTERY (for MOTORCRAFT)

WEBCARDLX (for TRIPP LITE)

3412VOLTS (for FACTORY CAT)

51900917 (for AGILENT / HP)

L7079 (for HAMAMATSU)

LIGHTCYCLER 48ENON LAMP (for ROCHE)

XENON 100W

2487 DEUTERIUM LAMP (for WATERS)

228-37401-00 (for SHIMADZU)

LC 2010A DEUTERIUM LAMP (for SHIMADZU)

1  LC 2010A DEUTERIUM LAMP (for SHIMADZU)

66632 (for OSRAM SYLVANIA)

V874SSUBCXX00P0 (for LED)

 LISTINGFLUKE- 325 (for FLUKE)

DEUTERIUM LAMP

F17T8/735/ENV (for SATCO)

NDA0100-XX BATTERY (for PATIENT LIFT MODEL)

2115A BATTERY (for STRYKER)

SOLARMAXX300BARELAMPONLY (for SUNOPTICS)

SSX0035BARELAMPONLY (for SUNOPTICS)

COMBIFLASH SYSTEM SQ16X DEUTERIUM LAMP (for ISCO)

SM 3100 DEUTERIUM LAMP (for LDC)

SM-4000 DEUTERIUM LAMP (for THERMO SCIENTIFIC)

L-310 (for SONNTEK)

S600 DEUTERIUM LAMP (for SPECORD)

DXL20SN3 (for USHIO)

GIULIAV629LYEAR2018BATTERY (for ALFA ROMEO)

300V857L730CCAYEAR2008BATTERY (for CHRYSLER)

RANGEROVEREVOQUEL420L770CCAYEAR2013BATTERY (for LAND ROVER) and

56029635ACBATTERY (for MOPAR)

5500 L6 6.7L 730CCA DIESEL YEAR 2012 BATTERY (for RAM) and

(25) PQL F32T8/SKY-BRITE PLUS/25W

(25) F32T8/SKY-BRITE PLUS (for PQL)

(25) F32T8/SKY-BRITE PLUS/25W (for PQL)

744-A4060 (for )

220-191-000 LAMP & MODULE (for STRYKER)

 LISTINGUS 180C2 (for US BATTERY)

 LISTINGESGC-2 (for WALMART)

 LISTINGUS1800 (for US BATTERY)

4708900 (for HACH)

2100N (for HACH)

Replacement fo8000LAMPHOUSING (for STRYKER)

(25) HALCO F32T8/741/ECO

(25) F32T8741ECO (for HALCO)

BHL5003-SU LAMP & HOUSING (for JVC)

OVERDRIVE31AGM (for TROJAN)

T125215AHDURACELLBRANDBATTERY (for TROJAN)

 LISTINGA25C YEAR 1995 STARTER (for VOLVO)

 LISTING71664G07 (for EZGO / CUSHMAN / TEXTRON)

(10) KICHLER 5907FST

(HALCO F32T8/735/ECO/IC

(PHILIPS F32T8/TL735

(OSRAM SYLVANIA FO32/735

(PHILIPS F32T8/TL735/ALTO

(PHILIPS F32T8/TL735/ALTO PLZ

(DAMAR F32T8/SP35/ECO

(GE GENERAL ELECTRIC G.E F32T8/735/ECO

(F32T8735ECOIC (for HALCO)

(F32T8TL735ALTOPLZ (for PHILIPS)

(F32T8SP35ECO (for PHILIPS)

(F32T8735 (for BATTERIES AND LIGHT BULBS)

(F32T8SP35ECO (for DAMAR)

(FO32735 (for SYLVANIA)

(F32T8735ECO (for )

(F32T8735KENV (for LIGHT BULB / LAMP)

(FO32735 (for OSRAM SYLVANIA)

(F32T8TL735 (for PHILIPS)

(15903 (for )

(F32T8TL735 (for LIGHT BULB / LAMP)

(F32T8TL735ALTO (for PHILIPS)

(BATTERIES AND LIGHT BULBS F32T8/735

NSB IQ250/260-I01 Programmable Logic Controllers (PLCs) I/O Card

NSB ELC-EX16NNDN Programmable Logic Controllers (PLCs) ELC Expansion 24V 1

Panduit NSB PCM-12 Misc. Cable and Wire Accessories Wire Marking Card 25

Macrodata SF-418983 PLC Cables/Connectors/Accessories Memory Card

NSB DXC-EXT-IO110 PLC Cables/Connectors/Accessories Logic Input Card 110V

Hubbell NSB CCG Other Lighting Fixtures/Trim/Accessories

PCB Assembly NSB SF-420210 Programmable Logic Controllers (PLCs) Driver/Receiver

Greenlee NSB 85997 Other PCB Components

Berg Electronics NSB 50012-1030G Other PCB Components

NSB D8PR6TET1 PCB/ Plug-in Relay 1P 30A 24V 50/60Hz

Carrier SF-408446 Programmable Logic Controllers (PLCs) Display w/ Circuit BNSB S Motor Drives/VFDs/Speed Controllers

NSB S Motor Drives/VFDs/Speed Controllers 480VAC 50/60Hz 7.5H

NSB HMX34AG06121-N Motor Drives/VFDs/Speed Controllers

NSB DC1-32018FB-A6SN Motor Drives/VFDs/Speed Controllers Compact Frequency

Allen Bradley NSB 1305-BA04A-HA2 Motor Drives/VFDs/Speed Controllers

NSB DG1-34061FN-C21C Motor Drives/VFDs/Speed Controllers General Purpose D

NSB DC1-34030FB-A20N Motor Drives/VFDs/Speed Controllers Compact Frequency

NSB DA1-342D2FB-A6SC Motor Drives/VFDs/Speed Controllers 2.2A 480V 50/60Hz

NSB DC1-34030NB-A20CE1 Motor Drives/VFDs/Speed Controllers

NSB SPI261A0-5A3N1 Motor Drives/VFDs/Speed Controllers

NSB MMX34AA016F0-0 Motor Drives/VFDs/Speed Controllers

NSB SPX001A1-4A1B1 Motor Drives/VFDs/Speed Controllers

NSB DM1-34031NB-N20B Motor Drives/VFDs/Speed Controllers

NSB SPX010A1-4A1B1 Motor Drives/VFDs/Speed Controllers 480V

NSB SPX005A1-4A1B1 Motor Drives/VFDs/Speed Controllers

NSB S Motor Drives/VFDs/Speed Controllers

NSB DC1-34024NB-A20CE1 Motor Drives/VFDs/Speed Controllers

NSB DC1-122D3NN-A6SN Motor Drives/VFDs/Speed Controllers 2.3A 240V 50/60Hz

MMX34AA1D3F0-0 Motor Drives/VFDs/Speed Controllers

NSB DE1-346D6NN-N20N Motor Drives/VFDs/Speed Controllers 6A 480V 4HP

OPTTHRFR4 Motor Drives/VFDs/Speed Controllers

NSB DC1-34018NB-A20CE1 Motor Drives/VFDs/Speed Controllers

MMX34AA014N0-0 Motor Drives/VFDs/Speed Controllers

NSB HMX34AG03121-N Motor Drives/VFDs/Speed Controllers

NSB SPX050A2-4A1N1 Motor Drives/VFDs/Speed Controllers

NSB DA1-353D1NB-B6SC Motor Drives/VFDs/Speed Controllers

NSB OPTB5V Motor Drives/VFDs/Speed Controllers

NSB S Motor Drives/VFDs/Speed Controllers

NSB DC1-34014NB-A20CE1 Motor Drives/VFDs/Speed Controllers

MMX32AA2D4N0-0 Motor Drives/VFDs/Speed Controllers

NSB DC1-32018FB-A20CE1 Motor Drives/VFDs/Speed Controllers

NSB DA1-12011FB-B6SC Motor Drives/VFDs/Speed Controllers

NSB HMX35AG05222-N Motor Drives/VFDs/Speed Controllers

Cutler-Hammer NSB 38150060 Motor Drives/VFDs/Speed Controllers

NSB S Motor Drives/VFDs/Speed Controllers 7.6A 380-500V 50/60

NSB DC1-124D3FN-A66N Motor Drives/VFDs/Speed Controllers

NSB HMX35AG02221-N Motor Drives/VFDs/Speed Controllers

NSB DC1-S24D3NN-A66CE1 Motor Drives/VFDs/Speed Controllers

NNB MMX34AA5D6F0-0 Motor Drives/VFDs/Speed Controllers

NSB DC1-342D2FN-A66N Motor Drives/VFDs/Speed Controllers

NSB DC1-34030NB-A20N Motor Drives/VFDs/Speed Controllers

NSB BAC040A1-4A1B1 Motor Drives/VFDs/Speed Controllers HOA Keypad 61A 480V

NSB DC1-32018FB-A66N Motor Drives/VFDs/Speed Controllers

NSB HMX35AG10022-N Motor Drives/VFDs/Speed Controllers

MMX11AA1D7N0-0 Motor Drives/VFDs/Speed Controllers

NSB S Motor Drives/VFDs/Speed Controllers

NSB DXA-EXT-3RO Motor Drives/VFDs/Speed Controllers

NSB DC1-344D1NN-A20CE1 Motor Drives/VFDs/Speed Controllers

NFXF25A0-2 Motor Drives/VFDs/Speed Controllers

NSB DA1-324D3FB-A20C Motor Drives/VFDs/Speed Controllers

NSB DC1-349D5FB-A66N Motor Drives/VFDs/Speed Controllers

NSB DM1-111D6NB-S20S Motor Drives/VFDs/Speed Controllers

NSB DC1-327D0FB-A6SN Motor Drives/VFDs/Speed Controllers

NSB DC1-344D1NB-A66N Motor Drives/VFDs/Speed Controllers

NSB DC1-32024NB-A20CE1 Motor Drives/VFDs/Speed Controllers

DXG-SPR-FR3BC Motor Drives/VFDs/Speed Controllers

NSB DC1-127D0NB-A20CE1 Motor Drives/VFDs/Speed Controllers

NSB DM1-34016EB-S20S Motor Drives/VFDs/Speed Controllers

NSB DM1-34012EB-S20S Motor Drives/VFDs/Speed Controllers

NSB DC1-344D1NB-A20CE1 Motor Drives/VFDs/Speed Controllers

NSB DE1-345D0NN-N20N Motor Drives/VFDs/Speed Controllers

OPTTHR7 Motor Drives/VFDs/Speed Controllers

NSB HMX32AG01821-N Motor Drives/VFDs/Speed Controllers

NSB HMX35AG01822-N Motor Drives/VFDs/Speed Controllers 1

NSB DM1-34023NB-S20S Motor Drives/VFDs/Speed Controllers

NSB DE1-121D4NN-N20N Motor Drives/VFDs/Speed Controllers

NSB DM1-327D8NB-S20S Motor Drives/VFDs/Speed Controllers