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。

ALLEN BRADLEY 1494MN200 SERIES A OPERATING MECHANISM

ALLEN BRADLEY MPL-A430H-SJ22AA SERIES A SERVO MOTOR

JOHNSON CONTROLS MS-NAE5521-0 DRIVE

SCHNEIDER ELECTRIC GP2600-TC41-24V HMI

ALLEN BRADLEY 1756-IF4FXOF2F SERIES A PLC MODULE

ALLEN BRADLEY 1756-IF4FXOF2F SERIES A PLC MODULE

BOSCH MSK050C-0300-NN-S1-UG0-NNNN SERVO MOTOR

ALLEN BRADLEY 509-FOD-XXX SERIES L MOTOR STARTER

COGNEX DMR-262Q-0122 BARCODE SCANNER

V-303-70-B00-A00-1B HMI

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HONEYWELL 51303932-476 CIRCUIT BOARD

LEUZE 2FC47521NE00 DRIVE

OMRON F150-S1 CAMERA

SIEMENS 6ES7441-2AA04-0AE0 PLC PROCESSOR

SIEMENS 545-1103 PLC MODULE

HONEYWELL 620-0044 PLC MODULE

FANUC A06B-6136-H201 SERVO DRIVE

SHIMADZU UV-2501(PC) UV DOUBLE BLAZED DOUBLE MONOCHROMATOR SPECTROPHOTOMETER

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EATON CORPORATION A200M3CX MOTOR STARTER

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SIEMENS 1FT6062-1AF71-4EG1 SERVO MOTOR

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JOSLYN CLARK CONTROL MVC77UO36A50-76 CONTACTOR

CAMBRIDGE TECHNOLOGY 544M SENSOR

GENERAL ELECTRIC DS200SHVMG1AFE CIRCUIT BOARD

ALLEN BRADLEY 6181F-15TPW7 SERIES E DISPLAY

COGNEX DMR-300X-00 SENSOR

SEW EURODRIVE CMP63M/BK/KY/AK0H/SB1 SERVO MOTOR

SIEMENS 6ES5464-8MC11 PLC MODULE

PROSOFT MVI46 PLC MODULE

NVENT AWDH2016N488 ENCLOSURE

YASKAWA ELECTRIC CACR-SR20SB1BF-Y100 SERVOPACK CONTROLLER

ENDRESSHAUSER FMR240-A5V1GGJA 4A LEVEL TRANSMITTER

FANUC ?12/3000 A06B-0143-B077 AC SERVO MOTOR, 2.8KW, 155V, 12A, 200HZ, 3000RPM

EPSON RC520CU-1-UL PROCESS CONTROLLER

HONEYWELL R7249A-1003 AMPLIFIER

LENZE EL 1000S HMI

APPLIED MATERIALS 0190-05111 SWITCH

ALLEN BRADLEY 1336-PB-SP23C SERIES C CIRCUIT BOARD

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ATLAS COPCO 3HAB8101-8/10B SERVO DRIVE

ATLAS COPCO 3HAB8101-8/10A SERVO DRIVE

ALLEN BRADLEY 2711P-RDT12C SERIES C DISPLAY

ALLEN BRADLEY Y-2012-2-H00AA SERIES B SERVO MOTOR

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ALLEN BRADLEY 2711P-T15C4D9 SERIES A HMI

ALLEN BRADLEY 2711P-RDB15C SERIES C HMI

BOSCH MKD041B-144-GG1-KN SERVO MOTOR

SIEMENS 6SN1124-1AA00-0DA2 DRIVE

ALLEN-BRADLEY 1336-B003-E0D-FA2 SER A AC DRIVE

SIEMENS 500-5035 PLC MODULE

ALLEN BRADLEY 810-A21A SERIES A RELAY

ALLEN BRADLEY MPM-B1153E-2J74AA SERIES A SERVO MOTOR

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ASCO 833354421010 PNEUMATIC ACCESSORY

FANUC A06B-6151-H045#H580 SERVO DRIVE

KRONES BTL7-E170-M0425-S-SA407-K15 SENSOR

UTC FIRE  SECURITY COMPANY 70D40 OPERATING MECHANISM

ALLEN BRADLEY 1756-L72 SERIES B PLC MODULE

 ALLEN BRADLEY 1756-L72 SERIES B PLC MODULE

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 LISTINGDATALOGIC MATRIX 300N 412-010 BARCODE SCANNER

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ALLEN BRADLEY 6180W-15BP2KH SERIES A HMI

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ALLEN BRADLEY 1747-L552 SERIES C PLC PROCESSOR

1ALLEN BRADLEY 1747-L552 SERIES C PLC PROCESSOR

ALLEN BRADLEY 2711P-T10C4A8 SERIES A HMI

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GENERAL ELECTRIC DS200SLCCG1ACC CIRCUIT BOARD

BR 8DI330.D90450001-1 SERVO MOTOR

ANYBUS AB3601-C CIRCUIT BOARD

VEGA CL63.XXFGAHBMXX SENSOR

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FUJI ELECTRIC V708CD HMI

SIEMENS 3RT1344-1BB40 CONTACTOR

FESTO MME-MTS-300-TLF ENCODER

MITSUBISHI MR-A-1000S DRIVE

SIEMENS 3VL2708-1DC33-0AA0 CIRCUIT BREAKER

AVG AUTOMATION SAC-M1051-010 SWITCH

BALDOR RELIANCE 1SU44005 SP500 DRIVE

 RELIANCE 1SU44005 SP500 DRIVE

ALLEN-BRADLEY 2198-D012-ERS3 SER B KINETIX 5700 DIAL AXIS INVERTER. (RP072 -

SEW-EURODRIVE SA47 DRN90L4/DH GEARMOTOR

RIETER INVERTER IT RIU 570/4-P MISSING TOP CASING SCREWS

SEW-EURODRIVE CMP50M/KTY/AS1H/SM SERVO MOTOR

ROYAL PRODUCTS 35L234-863 MOTOR

ROSEMOT 1U05717G02 OXYGEN ANALYZER

RIETER INVERTER IT RIU 570/33-P MISSING SCREW ON 2ND HANDLE

TOSHIBA VT130G9U4160 G9 ADJUSTABLE SPEED DRIVE *NO DIAL*

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ALLEN-BRADLEY 440L-R4K1760YD SER A REV B LIGHT CURTAIN

 ALLEN-BRADLEY 440L-R4K1760YD SER A REV B LIGHT CURTAIN

DONALDSON 1C075055-63 ENCLOSURE

EFECTOR R360/PDM NG/DIALOGDISPLAY/C-CR1083 HMI

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YASKAWA ELECTRIC JZRCR-APU01-1 CONTACTOR

INDRAMAT DKC11.1-040-7-FW SERVO DRIVE

INDRAMAT DKC11.1-040-7-FW SERVO DRIVE

ALLEN BRADLEY 1747-AENTR SERIES A PLC MODULE

 ALLEN BRADLEY 1747-AENTR SERIES A PLC MODULE

YASKAWA ELECTRIC CIMR-R5A27P5 DRIVE

BALDOR RELIANCE 1326AB-B420E-21 MOTOR

ROBICON 26D017491 PROCESSOR BOARD

SIEMENS 1FT70465AF701CB1 MOTOR

COGNEX 542C SENSOR

BOSCH MDD090B-N-020-N2L-110PA0 SERVO MOTOR

ACCU-SORT AXIOM BARCODE SCANNER

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EMERSON DVC6200HW2 VALVE

SCHNEIDER ELECTRIC GP2300-TC41-24V HMI

ASEA BROWN BOVERI P-HC-BRC-30000000 PLC MODULE

FANUC IC697MDL350C PLC MODULE

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BIHLWIEDEMANN BWU3825 ETHERNET SWITCH

ALLEN BRADLEY 6181F-15TPXPX SERIES E HMI

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ALLEN BRADLEY 1794-ASB SERIES E PLC MODULE

 ALLEN BRADLEY 1794-ASB SERIES E PLC MODULE

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ALLEN BRADLEY 1747-L551 SERIES B PLC MODULE

 ALLEN BRADLEY 1747-L551 SERIES B PLC MODULE

ALLEN BRADLEY 2711P-T7C4A1 SERIES A HMI

ALLEN BRADLEY 2711P-T7C4A1 SERIES A HMI