推送:0010-05197R省市县区域/直送2024全+境+派+送
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。
BARMAG ELECTRONIC ED285D PC BOARD
BARMAG ELECTRONIC ED285D PC BOARD
BARMAG ELECTRONIC ED285F PC BOARD
BARMAG ELECTRONIC ED285F PC BOARD
BARMAG ELECTRONIC ED472 PC BOARD
BARMAG ELECTRONIC ED472 PC BOARD
BARMAG ELECTRONICS E003-39-OF PC BOARD E00339OF
BARMAG ELECTRONICS E003-39-OF PC BOARD E00339OF
BARMAG ELECTRONICS E003-39-OF PC BOARD E00339OF
BARMAG ELECTRONICS E003-39-OF PC BOARD E00339OF
BARMAG ELECTRONICS E003-39-OF PC BOARD E00339OF
BARMAG ELECTRONICS E003-39-OF PC BOARD E00339OF
BARRETT ELECTRONICS DF62011349 PC BOARD 80-7302-R7
BARTEC 07-7311-93WPK1NO RS485 PROFIBUS KOPPLER 235813
BARTEC 27-2551-2620 SPACE HEATER 110V 200W (OPEN BOX)
BASLER ELECTRIC 90 17709 001C PCB CARD 90 17709 112
Basler Electric DECS125-15-b1C5 V 2.0.7 DECS 125-15-b1C5 V 2.0.7 DECS125-15-S1C5
Basler Electric DECS125-15-b2C1 V 2.0.9 DECS 125-15-b2C1 V 2.0.9 DECS125-15-S2C1
BASLER ELECTRIC SR4A-2B16B3A STATIC VOLTAGE REGULATOR
BAUER CONTROLS 1700-008 CIRCUIT BOARD REV.A 1700008
BAUER CONTROLS 1700-008 CIRCUIT BOARD REV.B 1700008
BAUER CONTROLS 9210-091 HALL EFFECT BOARD 1700-034 9210091
BAY CONTROLS 7010-14 ANALOG OUTPUT BOARD REV B 701014
BAY CONTROLS 7010-4 CPU BOARD REV C 70104
BAY CONTROLS 7010-4 CPU BOARD REV C 70104
BAY CONTROLS CN-AIM CIRCUIT BOARD CNAIM REV D1
BAY CONTROLS CN-AIM CIRCUIT BOARD CNAIM REV D1
BAYLOR 55855 AUXILIARY CIRCUIT BOARD 55856 REV.A
BAYLOR 55855 AUXILIARY CIRCUIT BOARD 55856 REV.A
Baylor 56036 ground detection pcb board
Baylor 56036 ground detection pcb board
Baylor Company 55855 55856-2 Auxiliary Board PCB Card Circuit REV.A
BAYLOR COMPANY ALARM PCB 56037 REV C ASSY 56038 REV E
BAYLOR COMPANY BB75A HARD FIRING PCB
BAYLOR COMPANY BB75A HARD FIRING PCB
BAYLOR COMPANY PCB 56037 CARD
BAYLOR COMPANY PCB 56037 CARD
BAYLOR COMPANY PCB NO 55853 ASSY NO 57336/55854 REV C
BAYLOR D52620 DRILL ASSIST PCB REV. C BOARD NO D52621
BBC GJR2 3047 11 P1 10UA26 PCB CARD GJR2304711P110UA26
BBC LT480 PCB CARD GNT 7081 301R0001
BBC LT480 PCB CARD GNT 7081 301R0001
BBC RT480 PCB CARD GNT 6033 920/B RT480B
BBC RT480 PCB CARD GNT 6033 920/B RT480B
BBC RT480 PCB CARD GNT 6033 920/B RT480B
BBC RT480 PCB CARD GNT 6033 920/B RT480B
BBC RT481 PCB CARD GNT 6033491/F
BBC RT481 PCB CARD GNT 6033491/F
BBC SR 01 PCB CARD GVT 360 3261 SR01 GVT3603261
BBC SR 01 PCB CARD GVT 360 3261 SR01 GVT3603261
BBC SR 02 PCB CARD GVT 360 3262 SR02 GVT3603262
BBC SR 02 PCB CARD GVT 360 3262 SR02 GVT3603262
BBC SR 09 PCB CARD GVT 360 3269 GVT3603269
BBC SR 09 PCB CARD GVT 360 3269 GVT3603269
BBC SR 09 PCB CARD GVT 360 3269 GVT3603269
BBC SR 09 PCB CARD GVT 360 3269 GVT3603269
BBC SR 09 PCB CARD GVT 360 3269 GVT3603269
BBC SR 09 PCB CARD GVT 360 3269 GVT3603269
BBC SR 13 PCB CARD GVT 360 3273 GVT3603273
BBC SR 13 PCB CARD GVT 360 3273 GVT3603273
BBC SR 14 GVT 360 3274 PCB CARD SR14 GVT3603274
BBC SR 14 GVT 360 3274 PCB CARD SR14 GVT3603274
BBC SR 14 GVT 360 3274 PCB CARD SR14 GVT3603274
BBC SR 14 GVT 360 3274 PCB CARD SR14 GVT3603274
BBC SR 16 PCB CARD GVT 360 3276 SR16 GVT3603276
BBC SR 16 PCB CARD GVT 360 3276 SR16 GVT3603276
BBC SR 17 PCB CARD GVT 360 3277 SR17 GVT3603277
BBC SR 17 PCB CARD GVT 360 3277 SR17 GVT3603277
BBC SR 18 PCB CARD GVT 360 3278 SR18 GVT3603278
BBC SR 18 PCB CARD GVT 360 3278 SR18 GVT3603278
BBC SR 18 PCB CARD GVT 360 3278 SR18 GVT3603278
BBC SR 18 PCB CARD GVT 360 3278 SR18 GVT3603278
BCI 20-005-000 CIRCUIT BOARD 20005000
BCI 20-005-000 CIRCUIT BOARD 20005000
BE188_G PCB CARD 41841 0337
BE188_G PCB CARD 41841 0337
BECK 13-1945-01 PCB CIRCUIT BOARD 13194501
BECK 13-1945-01 PCB CIRCUIT BOARD 13194501
BECK 13-1945-01 PCB CIRCUIT BOARD 13194501
BECK 13-1945-01 PCB CIRCUIT BOARD 13194501
BECK 13-1945-01C CIRCUIT BOARD 13-2245-03 13194501C
BECK 22-4009-59 DRIVE CARD ASSEMBLY 22400959
BECK 22-4009-59 DRIVE CARD ASSEMBLY 22400959
BECKHOFF BC3100 BUS TERMINAL CONTROLLER
BECKHOFF BC3100 BUS TERMINAL CONTROLLER
BECKHOFF C1300 BOARD C1300 C1220H05
BECKHOFF C1300 BOARD C1300 C1220H05
BECKHOFF C1300 BOARD C1300 C1220H05
BECKHOFF C1300 BOARD C1300 C1220H05
BECKMAN 648713 SERVO BOARD 648790
BECKMAN 648713 SERVO BOARD 648790
BECKOFF CP9035 CP LINK CARD
BEHR 74007 CIRCUIT BOARD
BEHR 74007 CIRCUIT BOARD
BEHR 74007 CIRCUIT BOARD
BEHR 74007 CIRCUIT BOARD
BEKUM 4012-140-82092 TIMER BOARD 401214082092
BEKUM 4012-140-82092 TIMER BOARD 401214082092
BEKUM 4012-140-82092 TIMER BOARD 401214082092
BEKUM 4012-140-82092 TIMER BOARD 401214082092
BEKUM 4012-140-82102 PC BOARD 401214082102
BEKUM 4012-140-82102 PC BOARD 401214082102
BEKUM 4012-140-82102 PC BOARD 401214082102
BEKUM 4012-140-82102 PC BOARD 401214082102
BEKUM 4012-140-85791 PC BOARD 401214085791 / 401215154341