推送：0100-01708省市县区域/直送2024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。

ALLEN BRADLEY 150-A54NC SER. A SMC2 UNMP

ALLEN BRADLEY 150-A97NBD SERIES B SMART MOTOR CONTROLLER (AS PICTURED)

ALLEN BRADLEY 150-A97NCD SMART MOTOR CONTROLLER

Allen Bradley 150-C251NBD /B SMC-3 3-Wire 251A 480V Open Type Motor Controller

Allen Bradley 150-C25NBR /B SMC-3 25A 480V 3-P Motor Controller

Allen Bradley 150-C30NBD /A SMC-3 Motor Controller/Soft Starter 30A 480V 3-Wire

Allen Bradley 150-C30NBD /B SMC-3 Motor Controller/Soft Starter

Allen Bradley 150-C30NBR /B SMC-3 Motor Controller 30A 480V AC

Allen Bradley 150-C30NBR Series B SMC-3 Motor Controller 480VAC 24V AC/DC 30A

Allen Bradley 150-C37NBD /B SMC-3 Smart Motor Controller 37A

Allen Bradley 150-C37NBR Ser B SMC-3 Smart Motor Controller 37A 10-25HP @460V

Allen Bradley 150-C37NCD Ser B SMC-3 Smart Motor Controller 200-575VAC 37A

Allen Bradley 150-C3NCD Ser B 150 SMC-3 Smart Motor Controller 3A

ALLEN BRADLEY 150-C3NCD SER. B SMART MOTOR CONTROLLER

Allen Bradley 150-C43NBD Series B SMC-3 Motor Controller 3-Wire 43A 480VAC

Allen Bradley 150-C43NBR Series B SMC-3 43A 200-460VAC Smart Motor Controller

Allen Bradley 150-D20NBR /A SMC-Delta Smart Motor Controller 200-480V 20A

Allen Bradley 150-F43NBD /B SMC-Flex Motor Controller 100-240V 43A

Allen Bradley 150-S251NBD /A SMC-50 251A 480V Motor Controller /w Bypass 3-Wire

Allen Bradley 1606-XL120DR /A Redundant Power Supply 24V DC 120W 120/230V AC

Allen Bradley 1606-XL120E-3 /A 24VDC 120W 480VAC 3-Ph Power Supply

Allen Bradley 1606-XL240E Ser A 240W 24VDC 120/230VAC Power Supply

Allen Bradley 1606-XL480E-3 /A Power Supply 24-28V 3-Phase 480V

Allen Bradley 1606-XL480E-3W /B AC/DC Power Supply 24-28VDC 480W 3-Phase 480VAC

Allen Bradley 1606-XL480E-3W /B Power Supply 3-Ph 480V 480W 24-28V

Allen Bradley 1606-XL480EP /B 120/230VAC 480W 24-28VDC Power Supply

Allen Bradley 1606-XL720E-3 /A AC/DC 720W 24-28VDC Power Supply 3-P 480V Input

Allen Bradley 1606-XL960E-3 /A Switched Mode Power Supply 960W 460VAC 24-28VDC

Allen Bradley 1606-XL960E-3S Ser A 960W 24-28VDC Power Supply 3-Ph 400-480VAC

Allen Bradley 1606-XLB120E Ser A 120W 24-28VDC Basic Power Supply

Allen Bradley 1606-XLB240E /A Power Supply 240W 90-264V In 24V Out

Allen Bradley 1606-XLE120E-2 /A 380-480VAC 24-28VDC 120W Power Supply

Allen Bradley 1606-XLE240E-3 /A Power Supply 24-28VDC 240W 380-480V

Allen Bradley 1606-XLE480EP /B Power Supply 120/240VAC In 24VDC Out

ALLEN BRADLEY 1606-XLE80E SER. A 100-240VAC 1.4A UNMP

Allen Bradley 1606-XLE960DX-3N /A 480V 3-Ph 24VDC 40A Power Supply

Allen Bradley 1606-XLS240-UPS /A DC-UPS Power Supply 24V-In 22.4V-Out 240W 15A

Allen Bradley 1606-XLS480E /A Performance Power Supply 24V DC 20A 100-240V AC

Allen Bradley 1606-XLS480E-3 /A 480W 480VAC 3-Ph 24V Power Supply

Allen Bradley 1606-XLS480E-3 /A Performance Power Supply 24-28V 480W 3-Ph 480VAC

Allen Bradley 1606-XLS480E-3C Ser A AC/DC Power Supply 24VDC 480W

Allen Bradley 1606-XLS960E-3 Series A Power Supply 480V AC 24V DC 3PH 960W

Allen Bradley 1606-XLS960EE Ser A Power Supply 200-240VAC 1-Ph In 24VDC 960W Out

Allen Bradley 1609-B1000N /A Industrial 1000VA 120V Uninterruptible Power Supply

ALLEN BRADLEY 160-BA03NSF1 SER. C 380/460V 2.8A F/W 7.06 NSMP

ALLEN BRADLEY 160-BA04NPS1P1 SER. A F/W 4.07 NSNP

ALLEN BRADLEY 160-BA04NPS1P1 SER. B F/W 5.01 380-460V 4.6A NSNP

ALLEN BRADLEY 160-BA06NSF1P1 SER. C F/W 7.06 380-460V 7.0A NSNP

ALLEN BRADLEY 160-BA10NSF1P1 SER. C F/W 7.06 (AS PICTURED) NSNP

Allen Bradley 1719-PSDC Series A 1719 Ex I/O 24VDC Power Supply

Allen Bradley 1746-P2 /C SLC 500 Rack Mount Power Supply 120/240VAC

Allen Bradley 1746-P2 /C SLC 500 Rack Mount Power Supply 5A 120/240VAC

Allen Bradley 1746-P2 /C SLC 500 Rack Power Supply 120/240V 5A

Allen Bradley 1746-P3 /A SLC 500 24VDC Rack Mount Power Supply 3.6A

Allen Bradley 1746-P4 /A SLC 500 10A Rack Mount Power Supply

ALLEN BRADLEY 1746-P4 SER. A 120/240VAC 10.0A NSMP

Allen Bradley 1746-P5 /A SLC 500 Rack Mount Power Supply 125V DC 5A

Allen Bradley 1746-P7 /A SLC 500 12/24VDC Rack Mount Power Supply

Allen Bradley 1746-P7 Series A SLC 500 Rack Mount Power Supply 12/24VDC

ALLEN BRADLEY 1747-L532 SER. F F/W 11 NSMP

ALLEN BRADLEY 1747-L541 SER. D 24VDC 1A F/W 11 NSMP

ALLEN BRADLEY 1747-L542 SER. B F/W 7 NSMP

ALLEN BRADLEY 1747-L542 SER. D F/W 11 24VDC (NO KEY) NSMP

ALLEN BRADLEY 1747-L543 SER. D 24VDC 1A F/W 11 NSMP

ALLEN BRADLEY 1747-L553 SER. D F/W 13 24VDC 1A NSMP

Allen Bradley 1756-PA72 Ser C ControlLogix 85-265V AC Power Supply

Allen Bradley 1756-PA72 Series B ControlLogix Rack Power Supply 10A 85-265VAC

Allen Bradley 1756-PA72 Series C ControlLogix Rack Mount Power Supply 85-265VAC

Allen Bradley 1756-PA75 /B ControlLogix Power Supply Rack Mount

Allen Bradley 1756-PA75R /A ControlLogix Power Supply Redundant

Allen Bradley 1756-PA75R Ser A ControlLogix 85-265VAC 75W Redundant Power Supply

Allen Bradley 1756-PB50 /A ControlLogix Slim Power Supply 18-32VDC

Allen Bradley 1756-PB50 /A ControlLogix Slim Rack Power Supply

Allen Bradley 1756-PB72 /C ControlLogix Rack Power Supply 18-32VDC

Allen Bradley 1756-PB72 Series C ControlLogix 18-32VDC Rack Mount Power Supply

Allen Bradley 1756-PB75 Ser B ControlLogix DC Rack Power Supply

Allen Bradley 1756-PB75R /A ControlLogix Rack Mount Redundant Power Supply

Allen Bradley 1756-PB75R /A ControlLogix Redundant DC Power Supply

Allen Bradley 1756-PB75R /A ControlLogix Redundant Power Supply 19-32VDC

Allen Bradley 1756-PSCA2 /A ControlLogix Redundant Power Supply Chassis Adapter

Allen Bradley 1768-PB3 /A CompactLogix Power Supply 24VDC 3.5A

Allen Bradley 1769-IQ16 Compact I/O Input Module Ser A

Allen Bradley 1769-IQ16 Compact I/O Input Module Ser A REV 2

Allen Bradley 1769-PA2 /A Compact I/O 2A@5VDC 120/240VAC Input Power Supply

Allen Bradley 1769-PA2 /A Compact I/O Power Supply 120/240VAC

Allen Bradley 1769-PA2 /A Compact I/O Power Supply 120/240VAC Input

Allen Bradley 1769-PA4 /A Compact I/O 120/240VAC Power Supply

Allen Bradley 1769-PA4 Ser A Compact I/O 120/240VAC Power Supply

Allen Bradley 1769-PA4 Ser A Compact I/O Power Supply 4A@5VDC 120/240VAC Input

Allen Bradley 1769-PA4 Series A Compact I/O 120/240VAC Power Supply

Allen Bradley 1769-PB2 /A CompactLogix 2A Power Supply 24VDC Input

Allen Bradley 1769-PB2 /A CompactLogix Power Supply 2A@5V 24VDC

Allen Bradley 1769-PB4 /A CompactLogix Power Supply 24VDC Input 4A@5V DC Output

Allen Bradley 1771-DL Gray Encoder Input Module

Allen Bradley 1771-DLC Gray Encoder Input Module

ALLEN BRADLEY 1771-HTE 91670401 ENCODER TERMINATION PANEL

ALLEN BRADLEY 1771-HTE SER. A 91670401 ENCODER TERMINATION PANEL

Allen Bradley 1771-ID16 /B Isolated 120V AC Input Module

Allen Bradley 1771-IFE /A PLC-5 Analog Input Module REMAN

ALLEN BRADLEY 1771-IJ ENCODER COUNTER MODULE SER. A F/W H

ALLEN BRADLEY 1771-IJ SER. A F/W L ENCODER COUNTER DATE: 2008 FACTORY SEALED

ALLEN BRADLEY 1771-NC6 SER. A NSMP

ALLEN BRADLEY 1771OZL SER. A NSMP

ALLEN BRADLEY 1771-RTP3 SER. A REV. A NSMP

ALLEN BRADLEY 1778-IJA ENCODER/ COUNTER ARM ASSEMBLY

Allen Bradley 1794-ASB /D FLEX Remote I/O 24DC Power Supply Adapter

Allen Bradley 1794-ASB /E FLEX Remote I/O Adapter 24V Power Supply

Allen Bradley 1794-ASB Series E FLEX Remote I/O 24VDC Power Supply Adapter

ALLEN BRADLEY 1794-IF4I SER. A F/W H 24VDC NSMP

Allen Bradley 1794-PS13 Ser B Flex I/O Power Supply 85-264VAC

ALLEN BRADLEY 190-CPS40 SER. A w/ ZM-1-PKZ2 MOTOR STARTER 110-120V

ALLEN BRADLEY 190-CPS40D SER.A w/ 190-P016 SER.A MOTOR STARTER 110/120V

Allen Bradley 193-EA1DB /B Motor Protection Overload Relay 1-2.9A

Allen Bradley 193-EC1BB /C 193-EC1 E3 Motor Protection Relay

Allen Bradley 193-EC1CB Ser B E3 5-25A Electronic Motor Protection Relay w/ I/O

Allen Bradley 193-EC2AD Series C E3 Plus 1-5A Motor Protection Relay 4-In/2-Out

Allen Bradley 193-EC2BB /A E3 Plus Motor Protection Relay 3-15A w/Integrated I/O

Allen Bradley 193-EC2BD Ser B E3 Plus 3-15A Motor Protection Relay

Allen Bradley 193-EC2BD Series B E3 Plus Motor Protection Relay 3-15A

Allen Bradley 193-EC2BD Series C E3 Plus 3-15A Electronic Motor Protection Relay

Allen Bradley 193-EC2CD Series B E3 Plus 5-25A Motor Protection Overload Relay

Allen Bradley 193-EC2DD /C E3 Plus Electronic Motor Protection Relay 9-45A

Allen Bradley 193-EC2ZZ Ser B E3 Plus 9-5000A Electronic Motor Protection Relay

Allen Bradley 193-EC2ZZ Series B E3 Plus 9-5000A Motor Protection Relay

Allen Bradley 193-EC3AB /C E3 Plus Electronic Motor Protection Relay 1-5A Qty

Allen Bradley 193-EC3BB /C E3 Plus Electronic Motor Protection Relay 3-15A

ALLEN BRADLEY 194E-CA16E-P11 MOTOR DISCONNECT SWITCH

ALLEN BRADLEY 194E-E00-1753 SER. A 220/440V 100A UNMP

ALLEN BRADLEY 194E-E125-1753 SER. B 1000V 150A UNMP

Allen Bradley 20-750-DENC-1 /A PowerFlex 750 Dual Encoder Module

Allen Bradley 20-750-DENC-1 Ser A PowerFlex 750 Dual Encoder

Allen Bradley 20-750-DENC-1 Ser A PowerFlex 750 Dual Encoder Module