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
0100-00462板卡等工控备件优势经销
发布时间:2024-11-09

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。

ALSTOM CONVERTEAM 029.059 270 PCB CARD

ALSTOM CONVERTEAM 029.059 270 PCB CARD

ALSTOM CONVERTEAM 029.059 270 PCB CARD

ALSTOM D-984-0578 FAULT DETECTION BOARD D9840578

ALSTOM D-984-0578 FAULT DETECTION BOARD D9840578

ALSTOM D-984-0579 FREQUENCY DETECTION BOARD D9840579

ALSTOM D-984-0579 FREQUENCY DETECTION BOARD D9840579

ALSTOM D-984-0581 FLAME & FAULT ALARM BOARD D9840581

ALSTOM D-984-0581 FLAME & FAULT ALARM BOARD D9840581

ALSTOM D-984-0721 LAMP & METER BOARD D9840721

ALSTOM D-984-0721 LAMP & METER BOARD D9840721

ALSTOM D-984-0721 LAMP & METER BOARD D9840721

ALSTOM D-984-0721 LAMP & METER BOARD D9840721

ALSTOM GDS1002-4005 SIGMA CONTROL DC UNIT GDS10024005

ALSTOM GDS1002-4005 SIGMA CONTROL DC UNIT GDS10024005

Alstom GDS1004-4002

Alstom GDS1004-4002

ALSTOM ISTAT 300 HIGH ACCURACY ANALOGUE WATTS TRANSDUCER 3WGFE6051A

ALSTOM ISTAT 300 HIGH ACCURACY ANALOGUE WATTS TRANSDUCER 3WGFE6051A

ALSTOM ISTAT 300 HIGH ACCURACY ANALOGUE WATTS TRANSDUCER 3WGFE6051A

ALSTOM ISTAT 300 HIGH ACCURACY ANALOGUE WATTS TRANSDUCER 3WGFE6051A

ALSTOM KCEU1410F12MEE 193796K aag alstom kceu1410f12mee 193796k

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ALSTOM KCGG14201D20EEA...187240K alstom kcgg14201d2deea... 187240K

ALSTOM KCGG14201D20EEA...187240K alstom kcgg14201d2deea... 187240K

Alstom LGPG 111 LGPG11101P11MEE RELAY

ALSTOM MAE00-14 4 CHANNEL ANALOG I/P TERMINATION PANEL

ALSTOM MAE00-14 4 CHANNEL ANALOG I/P TERMINATION PANEL

ALSTOM MCGG62N1CB0753F OVER CURRENT PROTECTION RELAY

ALSTOM MCGG62N1CB0753F OVER CURRENT PROTECTION RELAY

ALSTOM PIB100 F 3BEB0169 BOARD

ALSTOM PIB100 F 3BEB0169 BOARD

ALT-A1-94V1 CIRCUIT BOARD 44-38-0001 AS13 ALTA194V1

ALT-A1-94V1 CIRCUIT BOARD 44-38-0001 AS13 ALTA194V1

ALTUS AL 1132 PCB 1400-404 D / FAST  BY DHL / FEDEX

ALTUS AL 1132 PCB 1400-404 D / FAST  BY DHL / FEDEX

ALTUS PCB 1400-312C AL3201 / FAST SHIP DHL OR FEDEX

ALTUS PCB 1400-312C AL3201 / FAST SHIP DHL OR FEDEX

ALTUS PCB 1400-408 A AL3116 / FAST SHIP DHL OR FEDEX

ALTUS PCB 1400-408 A AL3116 / FAST SHIP DHL OR FEDEX

ALTUS PCB AL1128 1400-404 C / FAST  BY DHL / FEDEX

ALTUS PCB AL1128 1400-404 C / FAST  BY DHL / FEDEX

AMBI TECH INDUSTRIES 35-0091 PC BOARD 350091

AMBI TECH INDUSTRIES 35-0091 PC BOARD 350091

AMERICAN STANDARD TRANE 6400-0971-01 REV.A PC BOARD 6400097101

AMERICAN STANDARD TRANE 6400-0971-01 REV.A PC BOARD 6400097101

AMETEK 090-0028-3-01-B CIRCUIT BOARD 90AXC1E 0900028301B

AMETEK 090-0028-3-01-B CIRCUIT BOARD 90AXC1E 0900028301B

AMETEK 090-0062-3-01-B SEQUENCE CARD 91AF3T24DC4EA8GP 0900062301B

AMETEK 090-0062-3-01-B SEQUENCE CARD 91AF3T24DC4EA8GP 0900062301B

AMETEK 80-212647-90 STATIC SWITCH CONTROL BOARD OSC212631 8021264790

AMETEK 80-212647-90 STATIC SWITCH CONTROL BOARD OSC212631 8021264790

AMETEK 80-212800-90 PC BOARD 8021280090

AMETEK 80-212800-90 PC BOARD 8021280090

AMETEK 80-230303-90 BOARD 8023030390

AMETEK 80-230303-90 BOARD 8023030390

AMETEK 80-230303-90 BOARD 8023030390

AMETEK 80-230303-90 BOARD 8023030390

AMETEK 80485SE OXYGEN SENSOR BOARD REV.G

AMETEK 80485SE OXYGEN SENSOR BOARD REV.G

AMETEK 80485SE OXYGEN SENSOR BOARD REV.G

AMETEK 80485SE OXYGEN SENSOR BOARD REV.G

AMETEK 80485SE OXYGEN SENSOR BOARD REV.G

AMETEK 80485SE OXYGEN SENSOR BOARD REV.G

AMETEK 80485SE OXYGEN SENSOR BOARD REV.G

AMETEK 80485SE OXYGEN SENSOR BOARD REV.G

AMETEK AN-1111 CIRCUIT BOARD AN1111 C-1019-376 C-1019-377

AMETEK AN-1111 CIRCUIT BOARD AN1111 C-1019-376 C-1019-377

AMETEK DNC-T2010-020 CONTROL BOARD DNCT2010020

AMETEK DNC-T2010-020 CONTROL BOARD DNCT2010020

AMETEK DNC-T2010-020 CONTROL BOARD DNCT2010020

AMETEK DNC-T2010-020 CONTROL BOARD DNCT2010020

AMETEK DNC-T2010-020 CONTROL BOARD DNCT2010020

AMETEK DNC-T2010-020 CONTROL BOARD DNCT2010020

AMETEK DNC-T2032-020 CONTROL BOARD DNCT2032020

AMETEK DNC-T2032-020 CONTROL BOARD DNCT2032020

AMETEK PANALARM 070-0014 FLASHER BOARD 0700014

AMETEK PANALARM 070-0014 FLASHER BOARD 0700014

AMK AE-EA1 PC BOARD AEEA1

AMK AE-EA1 PC BOARD AEEA1

AMK KU-EA1 PC BOARD KUEA1

AMK KU-EA1 PC BOARD KUEA1

AMP 459181-1A CIRCUIT BOARD 4591811A

AMP 459181-1A CIRCUIT BOARD 4591811A

AMPLIDAN MC.EVA AFP.MLS TONE MODUL 15303-1184 PCB

AMPLIDAN MC.EVA AFP.MLS TONE MODUL 15303-1184 PCB

AMPLIDAN MC.EVA AFP.MLS TONE MODUL 15303-1184 PCB

AMPLIDAN MC.EVA AFP.MLS TONE MODUL 15303-1184 PCB

AMPLIDAN MD.UDE AFP.BEA 9943 PCB

AMPLIDAN MD.UDE AFP.BEA 9943 PCB

AMPLIDAN MO.EVA AFP.EVA SUBSTATION MODUL 15306 PCB

AMPLIDAN MO.EVA AFP.EVA SUBSTATION MODUL 15306 PCB

AMPLIDAN MO.EVA AFP.EVA SUBSTATION MODUL 15306 PCB

AMPLIDAN MO.EVA AFP.EVA SUBSTATION MODUL 15306 PCB

AMPLIDAN T.016931-0883 CBU 9940 PCB

AMPLIDAN T.016931-0883 CBU 9940 PCB

AMSAMOTION FX-USB-AW PLC PROGRAMMING CABLE WITH 1761-CBL-PM02 COMPUTER CABLE

AMSAMOTION FX-USB-AW PLC PROGRAMMING CABLE WITH 1761-CBL-PM02 COMPUTER CABLE

AMTRON TECHNOLOGY PCD-RP-101E INTERFACE CARD PCDRP101E

AMTRON TECHNOLOGY PCD-RP-101E INTERFACE CARD PCDRP101E

AMTRON TECHNOLOGY PCD-RP-101E INTERFACE CARD PCDRP101E

AMTRON TECHNOLOGY PCD-RP-101E INTERFACE CARD PCDRP101E

ANALOG DEVICES RTI-1225 PC BOARD

ANALOG DEVICES RTI-1225 PC BOARD

ANALOG DEVICES RTI-1260G-1000 BIPOLAR CONVERTER BOARD RTI1260G1000

ANALOG DEVICES RTI-1260G-1000 BIPOLAR CONVERTER BOARD RTI1260G1000

ANALOG DEVICES RTI-1260G-1000 BIPOLAR CONVERTER BOARD RTI1260G1000

ANALOG DEVICES RTI-1260G-1000 BIPOLAR CONVERTER BOARD RTI1260G1000

ANALOG DEVICES RTI-1260G-1000 BIPOLAR CONVERTER BOARD RTI1260G1000

ANALOG DEVICES RTI-1260G-1000 BIPOLAR CONVERTER BOARD RTI1260G1000

ANALOG DEVICES RTI-1262 I/O BOARD

ANALOG DEVICES RTI-1262 I/O BOARD

ANALOG DEVICES RTI-602 PC BOARD RTI602

ANALOG DEVICES RTI-602 PC BOARD RTI602

ANDERSON INSTRUMENT EHTST 56000-A50 DISPLAY BOARD 56000A50

ANDERSON INSTRUMENT EHTST 56000-A50 DISPLAY BOARD 56000A50

ANDERSON INSTRUMENT EHTST 56000-A50 DISPLAY BOARD 56000A50

ANDERSON INSTRUMENT EHTST 56000-A50 DISPLAY BOARD 56000A50

ANDERSON-NEGELE 64430902 CURRENT OUTPUT BOARD 2OUTPUT

ANDERSON-NEGELE 64430902 CURRENT OUTPUT BOARD 2OUTPUT

ANSCHUTZ 116-083.06 PCB CARD RACK BOARD E01

ANSCHUTZ 116-083.06 PCB CARD RACK BOARD E01

ANSCHUTZ 116-083.07 PCB CARD E01

ANSCHUTZ 116-083.07 PCB CARD E01

ANSCHUTZ 116-083.08 PCB CARD E01

ANSCHUTZ 116-083.08 PCB CARD E01

ANSCHUTZ 132-084 NG002 PCB CARD

ANSCHUTZ 132-084 NG002 PCB CARD

ANSCHUTZ DEGREE RUDDER ANGLE INDICATOR 40-0-40 PORT/STBD

ANSCHUTZ DEGREE RUDDER ANGLE INDICATOR 40-0-40 PORT/STBD

ANSCHUTZ DEGREE RUDDER ANGLE INDICATOR 40-0-40 PORT/STBD

ANSCHUTZ DEGREE RUDDER ANGLE INDICATOR 40-0-40 PORT/STBD


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