0242-09361船舶半导体工控备件主板供应

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。

TOTOKU DISPLAY MONITOR A61L-0001-0093 MDT947B-2B B181956 PLB16-01

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WILLY VOGEL LUBRICATOR MINI-1/KW2-MS5 900 131 013 503 LUBRICATION TANK PUMP

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SIEMENS MOTOR 1LA7063-4AB11 UD 0809/1167413-002-21 EC/EN 60034 0073062 MNRV 030

FANUC AC SERVO MOTOR ENCODER A860-0308-T113  EACH 1

NOP INDEX MOTOR IM-H-170-2PC-2-0-0-H MFG 5A 070 HITACHI SEIKI HC400-40 EACH 1

FUJI POWER INVERTER FVR0.75E11S-2 3PH FVRO.75E11S-2

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YASKAWA CIRCUIT BOARD JPDC-C027 ETC004101 B 37K SPINDLE DRIVE  EACH 1

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DAIKIN SOLENOID VALVE JSO-G02-4CA-20 MFG 24 40 AC100V CA-2A  PIECES

SWEO CONTROLS CIRCUIT BOARD 0028-067 1981 1000301 REV-C 1981

CHARMILLES EDM CIRCUIT BOARD 852368 811043 C 811043C EACH 1

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FUJI ELECTRIC 3PHASE GEARED MOTOR MGA42A008S005U 750W OUTPUT HITACHI SEIKI HG400

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CINCINNATI AVENGER 250C CNC LATHE TOOL HER BLOCK TOOLING 3664226  PCS

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2002 GILDEMEISTER DMG 42 CNC LATHE SPINDLE DRAW BAR DRAWBAR 28.5" 1.98" 2.23"

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TOYO-OKI VALVE HD3-3W-BGA-025A-WYD2 707015 DC24V  PIECES

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WILLY VOGEL LUBRICATOR 122 049 300-M 122049300-M LUBRICATION TANK PUMP SYSTEM

CHARMILLES CNC EDM SIEMENS HAND HELD CONTROLLER JOG REMOTE CONTROL PENDANT

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1989 HURCO BMC-20 CNC VERTIACAL MILL PB 147581-001 415-0220-001 BOARD

MITSUBISHI CIRCUIT BOARD OSBB-02-DWC C BY171E494G51 BY171E494H01

BOSCH VALVE 0 820 022 112 1 824 210 243 48V 24V OKK MCV500 CNC MILL SET

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WILLY VOGEL LUBRICATOR 122 049 306 110/220V LUBRICATION TANK PUMP SYSTEM

HITACHI SEIKI HT20J CNC LATHE TURRET BLOCK TOOL HER 1.5" INCH  PIECES

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VICTOR TNS-3H CNC LATHE CIRCUIT BOARD PCB-1010-05

CHARMILLES ROBOFORM 2000 EDM PSI-E 95 42 SOLENOID VALVE MANIF

KRISTEL CRT DISPLAY MONITOR C72291 E149039(N) LR63646-13 3-424-2130A CINCINNATI

RELIANCE ELECTRO-CRAFT MINI MOTOR 0660-01-055R80-1000-LDCONN6 REV 003 43-0325

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