AB 1756-DNB/B 模块 全新原装

AB 1756-DNB/B 模块 全新原装

AB 1756-DNB/B 模块 全新原装

AB 1756-DNB/B 模块 全新原装

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。

BROOKS BOARD PN 002-8396-01

BROOKS BOARD Z-AXIS INTERCONNECT RD ASSY 127214 REV A

BROOKS BRD-T2ULTRA-COMP-A,TCX FXCO8 BOARD 921-112

BROOKS CARRIAGE BOARD PCA 017-0620-01 ASSY 118613, 002-5875-02

BROOKS CARRIAGE BOARD PCI 017-0178-01 ASSY 118613 BOARD

BROOKS CARRIAGE BOARD PCI 017-0178-01 ASSY 118613 BOARD #

BROOKS CARRIAGE BOARD(ATR) PCA# 017-0178-01

BROOKS CARRIAGE BOARD(ATR) PCA# 017-0178-01 PCB# 017-0177-01-A 002-5875-02

BROOKS CARRIAGE BOARD(ATR) PCA# 017-0178-01 PCB# 017-0177-01-A 002-5875-02 #

BROOKS CARRIAGE BOARD(ATR) PCA# 017-0178-01 PCB# 017-0177-01-A 118613

BROOKS CARRIAGE BOARD(ATR) PCA# 017-0178-01, ASSY 002-5875-02

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BROOKS GF 125CXXC MASS FLOW CONTROLLER,BROOKS P/N GF125C-906932,GAS:SiH4,500SCCM

BROOKS GF 125CXXC MASS FLOW CONTROLLER,BROOKS P/N GF125C-911380,GAS:He,10000SCCM

BROOKS GF 125CXXC MASS FLOW CONTROLLER,P/N GF125C-906863,GAS:Ar,10000SCCM

BROOKS GF 125CXXC MASS FLOW CONTROLLER,P/N GF125C-907048,GAS:NF3,15000SCCM

BROOKS GP I/O BOARD 148223-C9 POWER ON TESED

BROOKS INSTRUMENT MASS FLOW CONTROLLER 6256S GAS: SiF4 FS FLOW RATE: 200 SCCM

BROOKS INSTRUMENT MASS FLOW CONTROLLER MFC GAS: NF3 FS FLOW RATE: 1SLPM

BROOKS INSTRUMENT MASS FLOW CONTROLLER MFC GAS: NF3 FS FLOW RATE: 300SCCM

BROOKS INSTRUMENT MASS FLOW CONTROLLER MFC MOD: 6256S GAS: HE FS FLOW: 10 SLPM

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BROOKS MASS FLOW CONTROLLER MFC MODEL: 6256SCZVCMAC GAS: AR FLOW RATE: 10 SLPM

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BROOKS MASS FLOW CONTROLLER,KITS SCT VALVE,5964C2MAGQ5KA,5866RB1A1C4Q2SA

BROOKS MVME 162-533A MOTOROLA 01-W3960B 70B BOARD

BROOKS NET PCA 002-9016-02, PCA 002-9022-01, ANYBUS, PCB-002-9011-01 BOARD

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BROOKS P/N 002-7394-01 BOARD

BROOKS P/N 002-8766-01 BOARD POWER ON TESTED

BROOKS P/N BR148223 BOARD

BROOKS PCA 107427 REV: D PCB 017-0629-01-D BOARD

BROOKS PCA 107427 REV: D9 PCB 017-0629-01-D BOARD #

BROOKS PCA 118592 109811 BOARD

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BROOKS PENDANT TT1ENR2-1-TVS-ES-BROOKS8 112017 TESTED WORKING

BROOKS PERSONALITY BOARD IV ASSY 173801

BROOKS PN 001-1951-01 BOARD P/N 001-1951-03

BROOKS PN 001-4450-01 BOARD

BROOKS PN 001-4450-01 BOARD P/N 001-1951-06

BROOKS PN 11951 BOARD

BROOKS PRECISION MASS FLOW QMBC2L1B3A1A1A1LA1H7A1BA  FREE SHIP

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BROOKS RCB1586-SP171 REV E BOARD TESTED WORKING

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BROOKS ROBOT 121655 KLA:750-614718-000,CONTROLLER 105947,002-7391-08,108378

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BROOKS TCD CPUFX,921-031,BRD-T5X-IPACK-TRANSITION,MOTOROLA CPU 01-W3960B

BROOKS TCX FXCO BOARD 921-065, BRD-T5XTMC-COMP-E

BROOKS TCX TMCO BOARD 921-066, BRD-T5XTMC-COMP-E

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BROOKS TIC DIGH BOARD 921-017 BRD-T5-DIGH-TRANSITION,XYCOM 71244A-00 REV.C

BROOKS TIC DIGH BOARD 921-017 BRD-T5-DIGH-TRANSITION,XYCOM 71244A-001

BROOKS TIC DIGH BOARD 921-017 BRD-T5-XVME244-TRANSITION,XYCOM 71244A-001

BROOKS TIC PROF BOARD 921-070,SST 5136-PFB-VME #1

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BULGIN-SOURCE SAX51-01 POWER SUPPLY

BUMHAN ELECTRIC CO., LTD CK7-7 CK7-B6W COUNTER

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BURKERT FLOW SWITCH KJ70701 SS-GM84-4381992

BUS EXTENSION BOARD (SIMULATOR)

BUSCH R5 PUMP VACUUM RA 0040 F 503,0614130268 B14-160 TESTED WORKING

BUSCH VACUUM PUMP RA 0100 C503,KATT MOTOR FN 100 L4 TESTED WORKING

BUSDIST -86 BOARD 208-500104-2,281-500104

BUSSMANN KAC-175 LOT OF 9   FREE SHIP

BYSTRONIC AMPLIFIER ART.NR. 702120 POWER ON TESTED

BYSTRONIC AMPLIFIER B-702113-A POWER ON TESTED

BYSTRONIC AMPLIFIER B-702114 POWER ON TESTED

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C168H BOARD FREE SHIP

C168H/PCI BOARD LOT OF 3

C218 TURBO/PCI BOARD PCB PCI 218T VER 2.0,LOT OF 2

CABLE 2-02-011-07 FOR PRI EQUIPE ROBOT FREE SHIP

CAMBRIDGE TECHNOLOGY GAVANO LASER HEAD MOTOR MODEL 6870

CAMPBELL SCIENTIFIC INC CR5000 REFURBISHED#1

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CAN IN AUTOMATION ELREST 73230 KIRCHHEIM ART.NR: 1060126

CAN IN AUTOMATION ELREST 73230 KIRCHHEIM ART.NR: 1060300

CANADA ICES-003 CLASS A,COMPUTER CPU BOARD

CANOPUS AWS-68K BOARD

CAPACITANCE DIAPHRAGM GAUGE MFG UNDER PATENT CMLHL1115006

CAPACITANCE DIAPHRAGM GAUGE MFG UNDER PATENT CMLHL-11-160S123

CAPACITANCE DIAPHRAGM GAUGE MFG UNDER PATENT CMLHL-31-160S123

CAPACITANCE DIAPHRAGM GAUGE MFG UNDER PATENT CMOH-01-160S123

CAPACITANCE DIAPHRAGM GAUGE MFG UNDER PATENT CMOHL0115006

CARTEN NORMALLY CLOSED VALVE P06320 GBA 500

CCD CAMERA SET CS8420i TK5572A7 ILLUMINATOR FA-620 & XY STAGE AND POWER CABLE

CCD CAMERA SET CS8420i TK5572A7 ILLUMINATOR FA-620 62365 & XY STAGE WITH CABLES

CCD VIDEO CAMERA CV-M300 DC12V FUSE 1A FREE SHIP

CCD VIDEO CAMERA CV-M300 DC12V FUSE 1A LENS 1-6010

CC-LINK V2 DA CONVERTER UNIT AJ65VBTCU-68DAVN   FREE SHIP

CCS FIBER OPTIC ILLUMINATOR HLV-24SW-3W

CCS PLV-1005-1 ANALOG LIGHT CONTROL

CCS PSD-1024 LIGHT CONTROLLER, LDL-25X25-SW

CEC POWER SUPPLY EUPS-30A

CELERITY IN3XP AAVBD4001 MFC MASS FLOW CONTROLLER 3000 SCCM GAS:CIF3

CELERITY SPT204 250 PSIG PRESSURE TRANSDUCER GAUGE, LR050 DIGITAL INDICATOR

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CENTRAL DATA CORPORATION CD21/3100 CD81/3100-HPTD BOARD