福建中立恒自动化设备有限公司
主营产品: 大型DCS系统备件,进口工业机器人备件,大型伺服系统电机驱动器,变频器,传感器,安全栅,编码器,电磁阀,流量计等机械或电气部件产品
0010-03363工控产品优势经销

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。

7607-0090-02 BUSS BUFFER MASTER BOARD

7610-639Z-01 PC BOARD

769259 Power Supply Pcb Circuit Board

7-859-00-990-4 BRUSH, CARBON SLIP RING CIRCUIT BOARD

7911-DAC-12M PC BOARD

8001A Sensor Module Pcb Circuit Board Rev C

8002-001A Alarm/warning Relay Pcb Board

8004-001A Sensor Heater Module Pcb Circuit Board

803072 803070 Pcb Circuit Board Rev G

80340083 BOARD

80354316-001 FLOWRATE MODULE BOARD

80354316-002 FLOWRATE MODULE BOARD

808521 REV.8 BOARD

80-H2009310-90 Control Pcb Circuit Board

8116-A BOARD

81198-A-047 MF19 Pcb Circuit Board

840 D ; OP 031 Siemens Sinumerik Machine Control Board USED

84DO5764JOI-A Plus Controller Pcb Circuit Board

84DO5867L01 NLN9216A-3 Tone/binary Tc Vor/vox Pcb Circuit Board

85301B Power Supply Pcb Circuit Board Iss 4

85339 85355A-5 Heater Control Board

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880-1504-1 Pcb Circuit Board Rev B

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8857 CIRCUIT BOARD

893140 Pcb Circuit Board Assembly

8D15176 REV.B BOARD

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90336 PROCESS CONTROL BOARD

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9224-01 Pcb Circuit Board Rev C

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A20B-1002-0700 06A FANUC PC BOARD REMAN

A20B-1002-0710 FANUC PC BOARD REMAN

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AA 2000163-002 REV.AB CIRCUIT BOARD

AA INC 2000113-002 CIRCUIT BOARD

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Aa Inc 2000164-002 2100a/advance Interface Board Rev Ab

Aa Inc 2000165-001 Analog Input Board Rev Ad

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AA INC. 2000113-002 CIRCUIT BOARD

AA INC. AMD-733A62R15 CIRCUIT BOARD

Aaeon SBC-557-A10 Half Size Cpu Card Board

AB S M003146253 502144 CIRCUIT BOARD

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ABB  B176 57360001-HX PROM EXPANSION BOARD MODULE (AS PICTURED)

ABB  B176 57360001-HX/2 MODULE BOARD (AS PICTURED)

Abb  C 112 57360001-HC/3 Pcb Circuit Board

ABB  C-112 DISK CONTROLLER BOARD 57360001-HC/3, 2668 182-106/4

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ABB 064844-012 PROCESS INTERFACE BOARD

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ABB 1734NZ10005A-951012081845 CIRCUIT BOARD

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Abb 3HAB5957-1 Memory Expansion Module Pcb Circuit Board

Abb 3HAC 14757-1/12 Serial Measurement Board Pcb

Abb 3HAC023447-001 Dsqc 532b I/o Pcb Circuit Board

Abb 3HAC026271-001 Pcb Circuit Board

Abb 3HAC044168-001/07 Serial Measurement Board

ABB 3HAC14279-1 I/O MAIN COMPUTER BOARD

ABB 3HAC17396-1 MEARSUREMENT BOARD

Abb 3HAC17396-1 Measurement Board

Abb 3HAC3180-1 Pr:04 Robot Computer Pcb Circuit Board

Abb 3HAC-5687-1-R DSQC 509 Connection Panel Pcb Circuit Board

Abb 3HNA003866-001 Pcb Circuit Board

Abb 3HNA011334-001/01 Safety Connection Board

Abb 3HNA018559-001 Pcb Circuit Board

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ABB 492837901 PC BOARD ORG24V

ABB 492838402 PC BOARD OCAHG

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ABB 52590493 FAULT CLASSIFICATION BOARD

Abb 52608287 Detector Board

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Abb 57360001-MX Pcb Circuit Board

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ABB 57443332 MATCHING CARD

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ABB 5760939-7D DRIVE TERMINAL BLOCK BOARD

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ABB 57618809 MAIN INTERFACE BOARD

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ABB 58125067 CIRCUIT BOARD

ABB 58172855 TERMINAL BLOCK BOARD

ABB 600215M PC BOARD DRIVER

ABB 6007BG10000D I/O MODULE BOARD   IN BAG

ABB 60155749-002 PC BOARD 60155750-001

ABB 6015BZ10000B I/O TRANSFER BOARD MOD-300

ABB 6018BZ10200C MEMORY EXPANSION BOARD

ABB 613086-004 RELAY W/BOARD

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ABB 68242835-B-1/4 TRIGGER BOARD

ABB 68789109 PC CONTROL BOARD

ABB 69242-002 PC BOARD

Abb 802A013B-1G1 Pcb Circuit Board

Abb 802A020B-1 Solenoid Driver Pcb Circuit Board

Abb 811520 Extrel Rf/dc Pole W/ Clock Circuit Board Rev A

ABB 814.56.10B CIRCUIT BOARD

ABB 814.56.10C CIRCUIT BOARD

ABB 8145610C PC BOARD

Abb 816035 Extrel Rf/dc Pole W/ Clock Circuit Pcb Circuit Board Rev A Qiv/ms250

ABB 940128102 PC BOARD IDPG

ABB 940143111 PC BOARD 4-20MA

ABB 961-108-001 COMMUNICATION CARD CIP


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