0010-3616RF工控产品优势经销
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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。
Brother B52J104-4 Pcb Circuit Board
Brother B52J123-1 Pcb Circuit Board
Brother B52J125-3 Pcb Circuit Board
Brother B52J132-1 Pcb Circuit Board
BROWN BOVERI GH R 432 0000 VO LOGIC CARD
BRUNER A-2508-12 BOARD
BS 620089 PC BOARD
BT0355 Control Charge Pcb Circuit Board
BT1182 Control And Metering Pcb Circuit Board
Btg MEK2200 CY0446 CY0361 Power Card
Btg MEK2200 Power Card 115/230v-ac
Btg MEK2300 H73091647 Optical Sensor Card
BTR Blumberger Control Card 110066250901 Slide-Rule 43665
Buehler 1760S016 Pcb Circuit Board Rev E
BUHL UDG791 CIRCUIT BOARD
Buhler EKH-30108-02 Pcb Circuit Board
BURFORD BOARD FABC01257 REV.E W/ C01410 REV. C
BURFORD C01210 CPU CARD
BURFORD C01410 CPU BOARD
BURFORD CO14010 PC BOARD
BURFORD CO1410 CONTROL PROCESS UNIT BOARD
BURFORD CONTROL BOARD A06870
BURFORD CORP C01410 REV C CPU BOARD
Burkert SS-NM86-424012A Type S030 Stainless Inline Fluid Sensor 1in Npt
Burle 3023891-1 Sync Generator Pcb Circuit Board
BURR-BROWN AA155-2-4 CIRCUIT BOARD
BURR-BROWN MP821B-15 BOARD
BURTON 513-760-000 CIRCUIT BOARD
BURTON DRIVE CIRCUIT BOARD 513-248-000
BUTLER AUTOMATIC CC13539-50 RELAY BOARD
BUTLER AUTOMATIC CC30137-560 LOGIC BOARD
BUTLER AUTOMATIC CC34154-501 R5232 INTERFACE BOARD
BYSTRONIC 4E0715-4-F ELECTRIC BOARD
BYSTRONIC E715-5-C PC BOARD
C & D TECHNOLOGIES 306-3044A2 CIRCUIT BOARD
C&A PRODUCTS 1982 7330 REV C PC BOARD
C&A PRODUCTS 8306 BOARD
C&A PRODUCTS CA110-10000 7330 RELAY BOARD
C&D BOARD MBC-5659-E
C&d MBC-1951 MCB-1984 Inter-phase Bal Pcb Circuit Board
C&D MBC-4650T-130-E CIRCUIT BOARD
C&d MCB-3137-130A Pcb Circuit Board
C&D TECH MBC-4650T-130-E CIRCUIT BOARD
C.Z. ELELTRONICA CZ050 BOARD
C05-0129 Wc 250 Total Wt Counter Pcb Board
C10209 CAROTRON CIRCUIT BOARD ISOLATION
C79451A3278B101 THERMOSTAT HEATING BOARD
Cable & Computer Technology 652810006-101 Pcb Circuit Board Rev A3
Cable & Computer Technology 652810007-101 Pcb Circuit Board Rev A3
CABLEFORM A62097-1 PC BOARD DRIVER ASSEMBLY
CABLEFORM A63543 PC BOARD DRIVER ASSEMBLY
CABLEFORM A63543 PC BOARD DRIVER ASSEMBLY AS PICTURED
Cae Electronics 35181 MA101829-01 Differential Amplifier Pcb Circuit Board
Cae Electronics 85181-MA347812-01 MA347812-01-2-268 Video Isolation Board Rev 4
Cae Electronics MA101831.01.2.268 Ma101831-01 Second Level Multiplexer Pcb Board
CAE ELECTRONICS MA1075015-01 CIRCUIT BOARD
CAE ELECTRONICS MA133719012268 CIRCUIT BOARD
Cae Electronics MA180006.01.2.268 Pcb Circuit Board
Cae Electronics MA268-106474-01 I/obic Pcb Circuit Board
Cae Electronics MA65134.02.2.268 Inverter Driver Pcb Circuit Board
Cae Electronics MA65530.03.2.268 Non-inverting Receiver Pcb Circuit Board
Cae Electronics MA79660.02.2.268 Decoder Driver Pcb Circuit Board
Cae Electronics MA79679.02.2.268 Transmission Line Driver/receiver Board Rev B/2
CAE ELECTRONICS MA8672002268 CIRCUIT BOARD
CAMCO PCB308212 MIC8212 UNMP
Came Kontrollkarte ZBY2 Control Card 3199ZBY-2 Schede Z-By / 2 Quadro Commando
Camintonn CMV-254 Pcb Circuit Board
Canberra D214145 Pcb Circuit Board Rev 5
Canongate CT-360 Mp88 Pcb Circuit Board Rev E
CANTRON 90040118D PC BOARD
Capital Controls A-1437 Pcb Circuit Board Rev 4
Capital Controls A-1546 Pcb Circuit Board Rev 7
Capital Controls A-1550 Pcb Circuit Board Rev 1
Capital Controls A-1550 Pcb Circuit Board Rev 4
Capital Controls A-1560 Pcb Circuit Board Rev 4
CARD RS232 BRAINBOXES
Carel 255743 Reversing Contactor Board 1hp
CARL SCHENCK AG D156098.06B2BCPV001 CIRCUIT BOARD
Carl Schenck Control Card D156234.03 Platine BEAV005 Board Platine
Carl Schenck Control Card K003089 Platine BKVK002 220591 BVK V002 Card
Carl Schenck Control Card K003245.04 Platine BSKV001 Board Platine
Carl Schenck Verstärkerkarte 161291 Amplifier Card BPB V001 K003 260.02 BB
CAROTRON RCP202-000 POWER BOARD
Carrier CEAS410104-01 Defrost Control Pcb Circuit Board
CARRIER HK35AA009 SEQUENCE TIMER BOARD
CARRIER HK50AA045 CIRCUIT BOARD
CARTE RELAIS BOARD JT1000 ST 1105-C
CASSESE S857B-PLCC52-V0.1 S857B4-0 23180025RB DIGITAL DISPLAY PCB x1pc
CASTROL 18912 PCB0302A1 NSNP
CAVITRON 20369F CIRCUIT BOARD
CC1 INC SCB2300 CIRCUIT BOARD
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C-can 195B-BX4523LV22 Pcb Circuit Board
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Ccs LFX-100BL Light Source 24v-dc
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Cct 652810010-101 Pcb Circuit Board Rev A
CDP 221933-7222 rev.b card
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Cds IMC714 PC0019 Pcb Circuit Board
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Cds IMC735 PC0016 Pcb Circuit Board
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Ce D-997-860 Pcb Circuit Board
CEAC PA-020-095 DUAL JACK BOARD
CEAC PE-020-159 CIRCUIT BOARD
CEGELEC 8311-4002 INPUT CARD
CELESCO 678748 CIRCUIT BOARD
CELTEK 43-91 CIRCUIT BOARD
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Cendac 63060416 Pcb Circuit Board Rev C1
CENTER FREQ CONTROL 670-5547-03,7939 DAQ 1200 INTERFACE Board FOR TEKTRONIX 492
CERUTTI RE52048 START-UP WARNING BOARD
CERUTTI RE52114/2 SUPPLY BOARD
CERUTTI RE52124 BOARD
CERUTTI RE52142 SUPPLY BOARD
CESO110057-02 CARRIER OEM HSI Furnace Fan Control Board
CFS46811-00 REV.C BOARD
CH 2V-094V-0 CIRCUIT BOARD
CH SYSTEMS PCB102 DATA ENTRY PCB
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Charmilles CT8132740A Pcb Circuit Board
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Charmilles CT8132850B Pcb Circuit Board
Chessell 101682 Iss 10 Pcb Circuit Board
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CHESSELL 101682 ISS. 6 BOARD
CHESSELL 123260 PC BOARD SERVO CONTROL
Chessell 234434 Input Pcb Circuit Board
Chessell 237399 Control Pcb Circuit Board Iss 3
CHESSELL I.C. GEARBOX 101689 BOARD
CHILLER LED DISPLAY CIRCUIT BOARD
CHINFA 1860-1100-01 POWER SUPPLY BOARD
CHIPCOM 5104M-FB1 CIRCUIT BOARD
CINCCINATI 3-533-0890G CONTROL BOARD
CINCINNATI 3531 3563A OUTPUT BOARD FEEDRATE CONTROL
CINCINNATI 3531 3573A OUTPUT INTERFACE BOARD
CINCINNATI 3531 3630A RELAY INTERFACE PC BOARD
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CINCINNATI 3531 3657A INTERFACE BOARD
CINCINNATI 3531 3678A PC BOARD
CINCINNATI 3531 3742A PC BOARD LOGIC MINI-MAXI MISER
CINCINNATI 3-533-0242G CIRCUIT BOARD
CINCINNATI INCORPORATION 829627 REV.B CIRCUIT BOARD
Cincinnati Milacron 3-31-4423A Pcb Circuit Board
CINCINNATI MILACRON 3-424-220002A PC BOARD
CINCINNATI MILACRON 3530002 PRE AMP LIM-2 CIRCUIT BOARD
CINCINNATI MILACRON 35305012 GP-3 RELAY CIRCUIT BOARD
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CINCINNATI MILACRON 3-531-2115A EXTENDER BOARD
CINCINNATI MILACRON 35312284A PC BOARD INFEED TEST
Cincinnati Milacron 3-531-3454A Pcb Circuit Board
Cincinnati Milacron 3-531-3742A Pcb Circuit Board
CINCINNATI MILACRON 3-531-4084A PC BOARD POWER SINE/COSINE
CINCINNATI MILACRON 35314219A CONTROLLER ANALOG PLASTIC PAC BOARD
CINCINNATI MILACRON 3-531-4284A CIRCUIT BOARD
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Cincinnati Milacron 3-531-4350A Pcb Circuit Board
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