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。

Windsor Technologies Mpm UW1 Weggeber Card Control Board 4/19654/1-1

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Windsor Central Logik Card Mpm ZL3/3 CPU Card 4/21894 / 0-005 Mpm ZL3/2, Mpm Zl

Philips Messwertaufnahme Card 9404 462 74131 Recording Card Module Pad 801603

Balluff Displacement Transducer Micropulse BTL1H7H BTL5-S104-M0750-P-S32

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Windsor Techn.weggeber Card MPM UW1 Controlboard 4/19615/0-00-001 (4 /19654/

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ProMinent Magnetdosierpumpe BT4B0708PVT2000A000000 Dosing Pump Cable Damaged

Philips 9404 462 01081 Regulator Card P  V Control Card 940446201081 Pp

Apex Control it Pad-5035e/L Pdnetip-Controller Modbus Icos Rev.02 PAD-5035

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Turck PT100 Ventilsteuerkarte MC33-121EX0-LRP/24VDC Measuring Amplifier 9040500

Windsor Technologies Memory Expansion MPM SK6 Z1 CPU Card 4/17820/0-006

Beckhoff Servo Motor AM8541-0E21-0000 6000rpm 400Vrms 1,45kW 2,45Nm

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Allen-Bradley Servo Motor MPL-B430P-SK74AA Motor Pn 12227 Ser. A Overhauled

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Windsor Technologies MPM ZL5 S112 Central Logik CPU Card 4/18934/1-007

Windsor Central Logik CPU Card Mpm Zl 3/1 S2 4/16744/0-35

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Beckhoff High-Inertia-Servomotor AM8561-1N2B-0000 High-Torque Slightly Damaged

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Moog Hydraulic Servo Valve D 651 129 D U70 Fqeac NGY0

BR it 3PS476.90-1 Power Supply Casing Damaged/Damaged

Turck PT100 Ventilsteuerkarte MC32-12Ex0-LRP/24VDC Measuring Amplifier 9041000

Bachmann Battenfeld ilog Stu 500/S Processor Card E06449/00 002 06449

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Windsor Technologies Central Logik Card Mpm Zl3/2 4/20834/2-005 CPU Card

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Windsor Technologies Central Logik CPU Card Mpm Zl 3/1 S2 Card 4/15328/1-01

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BR Analog Input Module 2AI300.61-010 Input Rev 00.00 Slightly Damaged

Grawin Operator Panel II VSR020000241 Display 16/32V Dc 1A for Simatic

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Allen-Bradley I/O Módulo 1791ES-IB8XOBV4 Ser  Ethernet / IP Compactblock Guard

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ProMinent Magnetic Dosing Pump BT4B0708PVT2000A0000 Dosing Pump Cable Damaged

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Grawin Control Panel Grawin II VSR020000241 Panel Display 16/32V DC 1A for Simatic

Festo Valve Terminal R215 Combination 152122 151693 MPYE-5-1/8-HF-010-B 11553

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Fameccanica Schleifringbaugruppe SC085-02/02-SA03-RF71 slip ring 5204012.00

Dold Motor Brake 0058304 Motor Brake Relay GB9034 60A AC50/60HZ 400V

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Siemens Star Triangle Combination 3RA2423-8XF32-1AG2 3RT2024-1AG20 3RA2912-0

Balluff Removal Transducer Micropulse BTL1H7H Transducer BTL5-S104-M0750-P-S32

Fiessler transmitter for light curtain LSUW 355 S transmitter light barrier 34181 355 mm

Arburg CPU Module ARB 709 CPU Module SN 142.811 179269 Pr. 1 Slightly Damaged

Indramat AC Servo Controller DDS2.1-W100-DG01-00  Dds 2.1-WO25-DL01-00

IEC Corporation Flanges Grinding Ring BXSN-10-MS10-2FT-J0A Flanges Brief Ring

Allen-Bradley Drehzahlgeregelter Accionamiento 160-BA02NPS1P1 Speed Drive S. B

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Indramat Digital AC Servo Controller DDS02.1-W100-D  Dsm 2.1-E11-01.RS

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