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
ALSTOM KCEU1410F12MEE 193796K aag alstom kceu1410f12mee 193796k
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
- 0100-00455板卡等工控备件优势经销 2024-11-09
- 0100-00454板卡等工控备件优势经销 2024-11-09
- 0100-00449板卡等工控备件优势经销 2024-11-09
- 0100-00446板卡等工控备件优势经销 2024-11-09
- 0100-00444板卡等工控备件优势经销 2024-11-09
- 0100-00443板卡等工控备件优势经销 2024-11-09
- 0100-00439板卡等工控备件优势经销 2024-11-09
- 0100-00504板卡等工控备件优势经销 2024-11-09
- 0100-00438板卡等工控备件优势经销 2024-11-09
- 0100-00499板卡等工控备件优势经销 2024-11-09