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。
ULSTEIN MARINE ELECTRONICS AI01022
ULSTEIN MARINE ELECTRONICS AI01022
ULSTEIN MARINE ELECTRONICS AI01022
ULSTEIN MARINE PBP40012/K-A PCB CARD PBP40012/L-A REV.A
ULSTEIN MARINE PBP40012/K-A PCB CARD PBP40012/L-A REV.A
ULSTEIN MARINE PCB PBP40012-A / FAST SHIP DHL OR FEDEX
ULSTEIN MARINE PCB PBP40012-A / FAST SHIP DHL OR FEDEX
ULSTEIN MARINE PCB PBP40012-A / FAST SHIP DHL OR FEDEX
ULSTEIN MARINE PCB PBP40012-A / FAST SHIP DHL OR FEDEX
ULSTEIN MARINE PLC1001A PCB CARD
ULSTEIN MARINE PLC1001A PCB CARD
ULSTEIN MARINE PTP40010B PCB CARD
ULSTEIN MARINE PTP40010B PCB CARD
ULSTEIN MARINE PTP40010B PCB CARD 930423 REV B
ULSTEIN MARINE PTP40010B PCB CARD 930423 REV B
ULSTEIN MARINE ROLLS ROYCE OLC 40009 PCB
ULSTEIN MARINE ROLLS ROYCE OLC 40009 PCB
ULSTEIN MARINE ROLLS ROYCE OLC 40009 PCB
ULSTEIN MARINE ROLLS ROYCE OLC 40009 PCB
ULSTEIN MARINE ROLLS ROYCE OLC 40009 PCB
ULSTEIN MARINE ROLLS ROYCE OLC 40009 PCB
ULSTEIN MARINE TAC 40011-A PCB CARD TAC 40011/K-A, TAC 40011/L-A
ULSTEIN MARINE TAC 40011-A PCB CARD TAC 40011/K-A, TAC 40011/L-A
ULSTEIN MARINE TDT30014-A PCB CARD
ULSTEIN MARINE TDT30014-A PCB CARD
ULSTEIN MARINE TDT30014-A PCB CARD
ULSTEIN MARINE TDT30014-A PCB CARD
ULSTEIN MEA 40030/403-A PCB CARD MEA 40030/403K-A
ULSTEIN MEA 40030/403-A PCB CARD MEA 40030/403K-A
ULSTEIN MEA 40030/403-A PCB CARD MEA 40030/403K-A
ULSTEIN MEA 40030/403-A PCB CARD MEA 40030/403K-A
ULSTEIN MEA 403 PCB CARD
ULSTEIN MEA 403 PCB CARD
ULSTEIN MTI-144 ENGINE CONTROL MODULE
ULSTEIN MTI-144 ENGINE CONTROL MODULE
ULSTEIN OBP 40018 PCB CARD OBP 40018L
ULSTEIN OBP 40018 PCB CARD OBP 40018L
ULSTEIN OBP 40018 PCB CARD OBP 40018L
ULSTEIN OBP 40018 PCB CARD OBP 40018L
ULSTEIN OLC 40009 PCB CARD OLC40009L-A
ULSTEIN OLC 40009 PCB CARD OLC40009L-A
ULSTEIN PANEL CONTROLLER CARD PCC1030C REV C
ULSTEIN PANEL CONTROLLER CARD PCC1030C REV C
ULSTEIN PROPELLER DIO1037A DIGITAL I/O INTERFACE CARD
ULSTEIN PROPELLER DIO1037A DIGITAL I/O INTERFACE CARD
ULSTEIN PROPELLER PDM1040 POWER DISTRIBUTION & MONITOR CARD
ULSTEIN PROPELLER PDM1040 POWER DISTRIBUTION & MONITOR CARD
ULSTEIN PROPELLER PFI1038 PULS/FREQUENCY INTERFACE CARD
ULSTEIN PROPELLER PFI1038 PULS/FREQUENCY INTERFACE CARD
ULSTEIN PROPELLER PIB1039A PITCH INDICATION AND BACKUP CARD
ULSTEIN PROPELLER PIB1039A PITCH INDICATION AND BACKUP CARD
ULSTEIN RBP 40019 PCB CARD 40019K, 40019L
ULSTEIN RBP 40019 PCB CARD 40019K, 40019L
ULSTEIN RBP 40019 PCB CARD 40019K, 40019L
ULSTEIN RBP 40019 PCB CARD 40019K, 40019L
ULSTEIN TDC 30009A PCB CARD TDC30009A / FAST BY DHL & FEDEX
ULSTEIN TDC 30009A PCB CARD TDC30009A / FAST BY DHL & FEDEX
ULSTEIN TDC 30009A PCB CARD TDC30009A / FAST BY DHL & FEDEX
ULSTEIN TDC 30009A PCB CARD TDC30009A / FAST BY DHL & FEDEX
ULSTEIN TENF JORD AS PCB A148C-99
ULSTEIN TENF JORD AS PCB A148C-99
ULSTEIN TENFJORD 5880-PC1011 DC1300 REV 15.03.05 PCB CIRCUIT
ULSTEIN TENFJORD 5880-PC1011 DC1300 REV 15.03.05 PCB CIRCUIT
ULSTEIN TENFJORD 5880-PC1011 DC1300 REV 15.03.05 PCB CIRCUIT
ULSTEIN TENFJORD 5880-PC1011 DC1300 REV 15.03.05 PCB CIRCUIT
ULSTEIN TENFJORD 5880-PC1011 REV C PCB CARD REV B
ULSTEIN TENFJORD 5880-PC1011 REV C PCB CARD REV B
ULSTEIN TENFJORD 5880-PC1020 PCB CARD REV B
ULSTEIN TENFJORD 5880-PC1020 PCB CARD REV B
ULSTEIN TENFJORD A148C-99 PCB CARD
ULSTEIN TENFJORD A148C-99 PCB CARD
ULSTEIN TENFJORD AS 5880-PC1015 PCB CIRCUIT BOARD
ULSTEIN TENFJORD AS 5880-PC1015 PCB CIRCUIT BOARD
ULSTEIN TENFJORD AS 5880-PC1015 PCB CIRCUIT BOARD
ULSTEIN TENFJORD AS 5880-PC1015 PCB CIRCUIT BOARD
ULSTEIN TENFJORD AS 5880-PC1017 REV B SIGNAL COMMON PCB CIRCUIT
ULSTEIN TENFJORD AS 5880-PC1017 REV B SIGNAL COMMON PCB CIRCUIT
ULSTEIN TENFJORD AS A148C-99
ULSTEIN TENFJORD AS A148C-99
ULSTEIN TENFJORD AS A148C-99
ULSTEIN TENFJORD AS A148C-99
ULSTEIN TENJFORD PS147B-92 PCB CARD / FAST BY DHL & FEDEX
ULSTEIN TENJFORD PS147B-92 PCB CARD / FAST BY DHL & FEDEX
ULSTEIN TMC 30012 PCB CARD
ULSTEIN TMC 30012 PCB CARD
ULSTEIN TMC 30012 PCB CARD
ULSTEIN TMC 30012 PCB CARD
ULSTEIN TMC 30012 PCB CARD
ULSTEIN TMC 30012 PCB CARD
ULSTEIN TMC 30012 PCB CARD TMC 30012-L
ULSTEIN TMC 30012 PCB CARD TMC 30012-L
ULSTEIN TMC30010 PCB CARD / FAST BY DHL & FEDEX
ULSTEIN TMC30010 PCB CARD / FAST BY DHL & FEDEX
ULSTEN MARINE ELECTRONICS WRC1021A PCB CARD
ULSTEN MARINE ELECTRONICS WRC1021A PCB CARD
ULSTEN MARINE ELECTRONICS WRC1021A PCB CARD
ULSTEN MARINE ELECTRONICS WRC1021A PCB CARD
ULVECO POWER SYSTEMS 17949 TRANSFORMER V.8731
ULVECO POWER SYSTEMS 17949 TRANSFORMER V.8731
UNBRANDED 03600075 PC BOARD REV.K
UNBRANDED 03600075 PC BOARD REV.K
UNBRANDED 3N10066 L1C CIRCUIT BOARD
UNBRANDED 3N10066 L1C CIRCUIT BOARD
UNBRANDED 44B377098G02 CIRCUIT BOARD
UNBRANDED 44B377098G02 CIRCUIT BOARD
UNBRANDED 500202 PC BOARD
UNBRANDED 500202 PC BOARD
UNBRANDED A12550200A A12550100A CONTROL BOARD
UNBRANDED A12550200A A12550100A CONTROL BOARD
UNBRANDED C12164000A A12164100A RACK DISPLAY BOARD
UNBRANDED C12164000A A12164100A RACK DISPLAY BOARD
UNBRANDED M-4-1771 MINI TBA BOARD 115-0850 M41771
UNBRANDED M-4-1771 MINI TBA BOARD 115-0850 M41771
UNBRANDED MT2N54-1A CONTROL BOARD MT2N541A
UNBRANDED MT2N54-1A CONTROL BOARD MT2N541A
UNICO 318493.010 CIRCUIT BOARD 403-056
UNICO 318493.010 CIRCUIT BOARD 403-056
UNICO 320133.022 CIRCUIT BOARD 401-188
UNICO 320133.022 CIRCUIT BOARD 401-188
UNICO 320133.022 CIRCUIT BOARD 401-188
UNICO 320133.022 CIRCUIT BOARD 401-188
UNICO 320133.022.1 CIRCUIT BOARD 401-188
UNICO 320133.022.1 CIRCUIT BOARD 401-188
UNICO 320133.022.1 CIRCUIT BOARD 401-188
UNICO 320133.022.1 CIRCUIT BOARD 401-188
UNICO 320133.024 CIRCUIT BOARD 401-188
UNICO 320133.024 CIRCUIT BOARD 401-188
UNICO 320133.024 CIRCUIT BOARD 401-188
UNICO 320133.024 CIRCUIT BOARD 401-188
UNICO 320176.002 CIRCUIT BOARD 403-056
UNICO 320176.002 CIRCUIT BOARD 403-056
UNICO 322404 CIRCUIT BOARD 0079-ADMV C0383.J.07
- 0100-0134板卡等工控备件优势经销 2024-11-10
- 0100-01339板卡等工控备件优势经销 2024-11-10
- 0100-01329板卡等工控备件优势经销 2024-11-10
- 0100-01326板卡等工控备件优势经销 2024-11-10
- 0100-01429板卡等工控备件优势经销 2024-11-10
- 0100-0132板卡等工控备件优势经销 2024-11-10
- 0100-01319板卡等工控备件优势经销 2024-11-10
- 0100-01318板卡等工控备件优势经销 2024-11-10
- 0100-01268板卡等工控备件优势经销 2024-11-10
- 0100-01-25板卡等工控备件优势经销 2024-11-10