发货速度快推送:GT700200702020380省市县区域/直送2023全+境+派+送

推送:GT700200702020380省市县区域/直送2023全+境+派+送

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。

ROL BOARD REV.11 6SB

ALLEN BRADLEY 193156 ConTROL BOARD REV.11 6SB

ALLEN BRADLEY 193156 ConTROL BOARD REV.11 6SB

ALLEN BRADLEY 193156 ConTROL BOARD REV.11 6SB

ALLEN BRADLEY 200769 FIELD REGULATOR BOARD M003104843

ALLEN BRADLEY 2090-U3BK-D4401 BREAKOUT BOARD KIT SER.D 2090U3BKD4401

ALLEN BRADLEY 20BD052A0AYNAND0 POWERFLEX 700 DRIVE 40HP SER.B 20-HIM-C6S

ALLEN BRADLEY 20DE3P9A3EYNANASE POWERFLEX 700S AC DRIVE 20D SER A 3HP

ALLEN BRADLEY 20P41AD167RA0NNN POWERFLEX DC DRIVE 100 HP 460V SER.A

ALLEN BRADLEY 2361-SPM01A FEEDBACK BOARD SERIES C 2361SPM01A

ALLEN BRADLEY 2361-SPM03A ARMATURE PULSE TRANSFORMER PCB SER C 2361SPM03A

ALLEN BRADLEY 25A-D4P0N104 AC DRIVE POWER FLEX 523 SERIES B 25AD4P0N104

ALLEN BRADLEY 2750-DP CIRCUIT BOARD 2750DP REPAIRED

ALLEN BRADLEY 2801-N27 I/O INTERFACE W/ 1781-A16A PC BOARD 2801N27

ALLEN BRADLEY 3400-TB BOARD SGHF-1000A P/N 200285 DDC

ALLEN BRADLEY 3500-C03 ConTROL BOARD SERIES A REV. N, 3500C03

ALLEN BRADLEY 40382-226-5 SNUBBER BOARD

ALLEN BRADLEY 40382-226-5 SNUBBER BOARD

ALLEN BRADLEY 40382-226-5 SNUBBER BOARD

ALLEN BRADLEY 40382-226-5 SNUBBER BOARD

ALLEN BRADLEY 42305-052-04 MAIN ConTROL BOARD 4230505204

ALLEN BRADLEY 42336-172-52 ConTROLLER BOARD 115V 4233617252

ALLEN BRADLEY 459221-0071 REPLACEMENT RELAY BOARD 4592210071 1745-R1

ALLEN BRADLEY 50373 CONTROL/SIGNALING CARD

ALLEN BRADLEY 50373 CONTROL/SIGNALING CARD

ALLEN BRADLEY 50386 VOLTAGE SENSING PC BOARD

ALLEN BRADLEY 50386 VOLTAGE SENSING PC BOARD

ALLEN BRADLEY 50387-002 MODULATOR BOARD 50387002

ALLEN BRADLEY 50387-002 MODULATOR BOARD 50387002

ALLEN BRADLEY 50404-001 INTERFACE BOARD 50404001

ALLEN BRADLEY 50404-001 INTERFACE BOARD 50404001

ALLEN BRADLEY 50904 SIGNAL BOARD REV.03

ALLEN BRADLEY 50904 SIGNAL BOARD REV.03

ALLEN BRADLEY 50905-002 DRIVER BOARD 50905002

ALLEN BRADLEY 50905-002 DRIVER BOARD 50905002

ALLEN BRADLEY 50906 PC BOARD REV. D

ALLEN BRADLEY 50906 PC BOARD REV. D

ALLEN BRADLEY 50916 ConTROL BOARD REV.03

ALLEN BRADLEY 50916 ConTROL BOARD REV.03

ALLEN BRADLEY 509-A0D-XXX MOTOR STARTER SER B 595-A ConTACTOR SER C

ALLEN BRADLEY 5250-MLP2/B DAUGHTERBOARD 5250-LP/B HOST BOARD

ALLEN BRADLEY 6217-973 UDB PC BOARD 6217973

ALLEN BRADLEY 6217-973 UDB PC BOARD 6217973

ALLEN BRADLEY 634176-90 RELAY DRIVER BOARD 63417690 REV 8

ALLEN BRADLEY 634303B-91 SERVO OUTPUT BOARD 634303B91

ALLEN BRADLEY 634483 PC BOARD REV.5

ALLEN BRADLEY 634483 PC BOARD REV.5

ALLEN BRADLEY 634619 REV.A PC BOARD 634619A

ALLEN BRADLEY 634619 REV.A PC BOARD 634619A

ALLEN BRADLEY 634619A UMC CIRCUIT BOARD

ALLEN BRADLEY 634619A UMC CIRCUIT BOARD

ALLEN BRADLEY 634699 CIRCUIT BOARD 634699 REV 3 634699-03

ALLEN BRADLEY 635531-9002 PROCESSOR BOARD 6355319002

ALLEN BRADLEY 635533 REV. E2 PC BOARD REPAIRED

ALLEN BRADLEY 635533 REV. E2 PC BOARD REPAIRED

ALLEN BRADLEY 635537 REV. 2 MICRO ConTROL BOARD 635536-01

ALLEN BRADLEY 636412-90 PC BOARD 63641290 636412 REV E2

ALLEN BRADLEY 636429-900 PROCESSOR BOARD 636429-900-01 636429-2 636429

ALLEN BRADLEY 7300-UC12 TAPE READER BOARD 7300UC12 REPAIRED

ALLEN BRADLEY 7300-UCI-2 TAPE READER BOARD 7300UCI2

ALLEN BRADLEY 7300-UMA-1 CIRCUIT BOARD 7300UMA1

ALLEN BRADLEY 7300-UMA-1 CIRCUIT BOARD 7300UMA1

ALLEN BRADLEY 7300-VHA1 KEYBOARD PC BOARD 7300VHA1

ALLEN BRADLEY 74102-303-51 DRIVE BOARD 7410230351 REV 10

ALLEN BRADLEY 74102-303-51 DRIVE BOARD 7410230351 REV 11

ALLEN BRADLEY 74103-216-51 PC BOARD 7410321651

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ALLEN BRADLEY 8000-KAC BOARD 8000KAC

ALLEN BRADLEY 8000-KAC BOARD 8000KAC

ALLEN BRADLEY 8000VA BOARD 8000-VA

ALLEN BRADLEY 8000VA BOARD 8000-VA

ALLEN BRADLEY 8000VA BOARD 8000-VA

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ALLEN BRADLEY 802T-HP OILTIGHT LIMIT SWITCH

ALLEN BRADLEY 802T-HP OILTIGHT LIMIT SWITCH

ALLEN BRADLEY 802T-HP OILTIGHT LIMIT SWITCH

ALLEN BRADLEY 802T-HP OILTIGHT LIMIT SWITCH SER J

ALLEN BRADLEY 802T-HP OILTIGHT LIMIT SWITCH SER J

ALLEN BRADLEY 802T-HP OILTIGHT LIMIT SWITCH SER J

ALLEN BRADLEY 813S-V3-480V VOLTAGE MonITORING RELAY 813S SER B

ALLEN BRADLEY 900057 PC BOARD REV.1 8000-GCC

ALLEN BRADLEY 900057 PC BOARD REV.1 8000-GCC

ALLEN BRADLEY 900057 PC BOARD REV.1 8000-GCC

ALLEN BRADLEY 900057 PC BOARD REV.1 8000-GCC

ALLEN BRADLEY 900057 PC BOARD REV.1 8000-GCC

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ALLEN BRADLEY 900059 CIRCUIT BOARD

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ALLEN BRADLEY 900090 SERVO ConTROLLER BOARD 8000-AG

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ALLEN BRADLEY A1231 PC BOARD SER.D

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ALLEN BRADLEY S50387 MODULATOR LOGIC BOARD

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ALLEN BRADLEY SP-120659 MAIN ConTROL PC BOARD 148363 SP120659

ALLEN BRADLEY SP-50399 DRIVER BOARD 50399 REV.07

ALLEN BRADLEY SP-50399 DRIVER BOARD 50399 REV.07

ALLEN BRADLEY VDK-2 KEYBOARD CIRCUIT CARD VDK2