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。

以下链接皆有货

 ALLEN BRADLEY 1769-L18ER-BB1B SERIES B PLC MODULE

ALLEN BRADLEY 20BD077A0ANNAND0 DRIVE

BOSCH DKC02.3-040-7-FW SERVO DRIVE

CONTROL TECHNIQUES 9500-1300-I DIGITAL DC DRIVE (156386 - )

ABB EH550C-1 CONTACTOR (137034 - )

MARKEM IMAJE ENR0829033 PRINT HEAD (129191 - )

GENERAL ELECTRIC DS200LDCCH1APA CIRCUIT BOARD

ALLEN BRADLEY 2711-B6C8 SERIES C HMI

 ALLEN BRADLEY 2711-B6C8 SERIES C HMI

ALLEN-BRADLEY 20F11FD065AA0NNNNN  POWERFLEX DRIVE (139591 - )

PARKER XPR215XT-2P3 HMI

EMERSON CMF200-M352-NRAUEZZZ FLOW METER

MITSUBISHI MR-SA702 AC SERVO DRIVE (153965 - )

ALLEN BRADLEY 2711-B6C8 SERIES B HMI

 ALLEN BRADLEY 2711-B6C8 SERIES B HMI

ALLEN BRADLEY 2711P-T12C4D8 SERIES A HMI

1  ALLEN BRADLEY 2711P-T12C4D8 SERIES A HMI

ALLEN BRADLEY 1394C-SJT05-T-RL SERVO DRIVE

ALLEN BRADLEY 1747-L543 SERIES D PLC MODULE

 ALLEN BRADLEY 1747-L543 SERIES D PLC MODULE

DANFOSS 134G1330 DRIVE

YASKAWA ELECTRIC CACR-SR20SF1AFB SERVOPACK SERVO DRIVE (126305 - )

ALLEN BRADLEY 1756-L63 SERIES B PLC PROCESSOR

 ALLEN BRADLEY 1756-L63 SERIES B PLC PROCESSOR

HONEYWELL 30735863-501 SWITCH

ALLEN BRADLEY 1336F-CWF150-AA-EN SERIES A DRIVE

GENERAL ELECTRIC 6KGP43015X9XXXA1 DRIVE

HANSALOY 1-HF6 H280 CM SLICER 100/115VAC 0.08/0.09/0.10A 50/60HZ 28" (52280

ALLEN BRADLEY SP-196259 CIRCUIT BOARD

GE FANUC DS200FCRRG1AJD CIRCUIT BOARD (127809 - )

SCHNEIDER ELECTRIC 8536SHO2V02S MOTOR STARTER

ENDRESS  HAUSER 5H3B1H-38T7/0 FLOW METER

ASEA BROWN BOVERI ACSM1-04AS-012A-4 DRIVE

HONEYWELL 30735866-501 PC BOARD (126103 - )

ASEA BROWN BOVERI ID15H460-EO DRIVE

SIEMENS 6AV7851-0AE20-1AA0 DISPLAY

BR X20CP1586 PLC MODULE

COGNEX IS7402-11 CAMERA

LENZE EVS9328-ES SERVO CONTROLLER (137447 - )

ALLEN BRADLEY 1771-IXE SERIES D PLC MODULE

ASEA BROWN BOVERI 2103732-511 CIRCUIT BOARD

ALLEN BRADLEY 1395-B71-D1-P50 SERIES B DRIVE

HONEYWELL 4DP7APXPR311 CIRCUIT BOARD

ALLEN BRADLEY 2711P-K12C4D1 SERIES A HMI

ALLEN-BRADLEY 20BD040A0AYNANC0  FRN 10.004 POWERFLEX 700 AC DRIVE (138761

ALLEN BRADLEY 1756-L61 SERIES B PLC MODULE

 ALLEN BRADLEY 1756-L61 SERIES B PLC MODULE

ALLEN BRADLEY 2198-H070-ERS2 SERIES A SERVO DRIVE

ALLEN BRADLEY 1756-M16 SERIES A PLC MODULE

SIEMENS 6ES7315-2EH14-0AB0 SWITCH

LMI LIQUID METRONICS SG73J8PPM MOTOR DRIVEN METERING PUMP (141799 - )

GENERAL ELECTRIC DS200RTBAG3A CIRCUIT BOARD

BR 4PP481.1505-75 HMI

YAMAHA RCX144 MOTOR

ALLEN BRADLEY 2711P-K10C4D8 SERIES A HMI

ALLEN-BRADLEY 1398-PDM-020  POSITIONING SERVO DRIVE (137861 - )

ALLEN BRADLEY 1756-L1M3 SERIES A PLC PROCESSOR

ALLEN BRADLEY 22D-D012N104 SERIES A DRIVE

VIDEOJET DATAFLEX PRINTER

LMI LIQUID METRONICS SG61J8PPM MOTOR DRIVEN METERING PUMP (141801 - )

MITSUBISHI FR-A520-11K-NA INVERTER DRIVE (141130 - )

ALLEN BRADLEY 2711P-K12C6B1 SERIES A HMI

GRDFOS DME 375-10 AR-SS/V/SS-F-31A4A4B PUMP

HONEYWELL 51305896-200 CIRCUIT BOARD

MCLEAN COOLING TECHNOLOGY CR230246G400 COOLING IT

TELEMECANIQUE ATV66D33N4 W/ TELEMECANIQUE VW3A66206 *CRACKED PLASTIC* AC DRIVE

MITSUBISHI MR-SA502 AC SERVO DRIVE (153966 - )

ALLEN BRADLEY 1791-8AC SERIES B PLC MODULE

ALLEN BRADLEY 2711P-B12C4A8 SERIES A HMI

SCHNEIDER ELECTRIC H363DX SWITCH

REXROTH KE350 PLC MODULE

HONEYWELL MEASUREX 51400997-200 REV N LOGIC CONTROL BOARD (127810 - )

YASKAWA ELECTRIC SGDV-280DE1A002000300 SERVO DRIVE

ALLEN BRADLEY 2711P-T7C4D1 SERIES A HMI

NORDSON 1028303 PUMP

EMERSON 8732EMR1A1M4 FLOW METER

BR 8BVI0055HWD0.000-1 SERVO DRIVE

ALLEN BRADLEY 80190-380-01-R CIRCUIT BOARD

ALLEN BRADLEY 2098-DSD-075-SE SERIES B SERVO DRIVE

DYNAPAR NORTHSTAR R81024T102LD MAGNETORESISTIVE ENCODER (133850 - )

YOKOGAWA AFV10D-S41101 PLC RACK

MITSUBISHI MR-H11KAN AC SERVO DRIVE (153968 - )

OMRON CFP0269 SENSOR

SIEMENS 9810TC PANEL METER

BOSTON GEAR F643B-40-B7 SPEED REDUCER (149331 - )

ALLEN BRADLEY 8720MC-RPS065-VB-M POWER SUPPLY

BENSHAW RSI050S44W VARIABLE FREQUENCY DRIVE (137814 - )

ALLEN-BRADLEY 20BC011A0AYNANA0  POWERFLEX 700 AC DRIVE (RP035 - )

MOOG D681Z4815G VALVE

GENERAL ELECTRIC DS200FCRLG1AFC CIRCUIT BOARD

ALLEN BRADLEY 140U-JD6D3-D12 CIRCUIT BREAKER

ALLEN BRADLEY 20F11ND077AA0NNNNN SERIES A DRIVE

ALLEN BRADLEY 2711P-B15C22D9P SERIES B HMI

YASKAWA ELECTRIC SGDV-260DE1A002000300 DRIVE

ALLEN BRADLEY 20DD022A0EYNANANE SERIES A DRIVE

BR 5D9212.03 HMI

ALLEN BRADLEY 20AD5P0C3AYNNNNN SERIES A DRIVE

BOSCH REXROTH R911308416 W/ HNK01 1A-A075-E0050-A-500-NNNN DRIVE W/ FILTER

BOSCH REXROTH R911308416 W/ HNK01.1A-A075-E0050-A-500-NNNN DRIVE W/ FILTER

LINX 6200 INK JET CODER 110-240V 50/60HZ 1A (44558 - )

HONEYWELL 08694500 PLC PROCESSOR

ALLEN-BRADLEY 20DD022A0EYNANANE POWERFLEX 700S AC DRIVE (127557 - )

UTC FIRE  SECURITY COMPANY 95UVS2-1CG SENSOR

SIEMENS 4AM6542-8ED40-0FA0 SITAS-TRANSFORMER (145563 - )

PARKER NX860EAJR7001 SERVO MOTOR (149292 - )

SIEMENS 6SE7021-8TP50 AC DRIVE (138677 - )

ALLEN-BRADLEY 20AD034A0AYNANC0  POWERFLEX 70 AC DRIVE *NO CONTROL PANEL*

SIEMENS 6AV7422-5AC00-0AT0 HMI

MARKEM ME3509-191E SERVO MOTOR

GRDFOS 625243 PLC MODULE

1  GRDFOS 625243 PLC MODULE

SICK CLV690-0000 BARCODE SCANNER

ENDRESS  HAUSER 8E1C50-AADBBAASAFTSHA1 FLOW METER

ROSEMOT 8732EMT1A1K5M4 FLOW METER

SCHNEIDER ELECTRIC C600/10/1/1/1/00 SERVO DRIVE

PHASETRONICS EZ3-48350-F POWER CONTROL BOARD (136782 - )

WESTINGHOUSE MORA2MAE RELAY

VIDEOJET 29813 MOTOR

ALLEN BRADLEY 1756-M08SE-G SERIES A PLC MODULE

METTLER TOLEDO 4500-922R CONTROL PANEL

ENTRON EN1000-B PROCESS CONTROLLER

TOSHIBA VT130G9U2270 TRANSISTOR INVERTER 27KVA 25HP 200/240VAC 76.3A 50/60HZ

YASKAWA ELECTRIC SGMRS-37A2A-YR11 AC SERVO MOTOR (137443 - )

ALLEN BRADLEY 2711-B5A8 SERIES H HMI

SIEMENS 6SN1146-1BB02-0CA2 DRIVE

SIEMENS 6SN1145-1AA01-0AA1 SIMODRIVE (136376 - )

AURORA L5S-115A-BF PUMP

BOSTON GEAR FUT-WB-B W/ BKF72130SB5GCMBWB6UB5FUTWBB MOTOR

SCHNEIDER ELECTRIC NWRR85001 PLC MODULE

ALLEN BRADLEY 20BD3P4A3AYNANC1 SERIES B DRIVE

ALLEN BRADLEY 2711P-K15C4D2 SERIES A HMI

ALLEN BRADLEY 2711P-K15C4D2 HMI