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 22C-D022N103 SERIES B DRIVE

NACHI RTC301 TEACH PENDANT

NACHI RTC301 TEACH PENDANT

SCHNEIDER ELECTRIC TCSESM083F1CS0 SWITCH

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

FANUC IC697CMM711 PLC PROCESSOR

SIEMENS 6SE6440-2UD21-1AA1 DRIVE

FANUC IC693PWR321Z POWER SUPPLY

HONEYWELL 4DP7APXIO-211 CIRCUIT BOARD

FANUC IC697CMM711Q PLC MODULE

ASEA BROWN BOVERI T1N080TL CIRCUIT BREAKER

DOMINO 14828 ENCODER

FANUC IC655ALG516 PLC MODULE

SQUID INK MANUFACTURING SQ60 PRINTHEAD

CHEROKEE INTERNATIONAL ACX631 POWER SUPPLY

HONEYWELL TC-ODJ161 PLC MODULE

LOCTITE 2139180 LIGHT FIXTURE

OMRON 7412-1000-1002 BARCODE SCANNER

SIEMENS 6RB2000-0GB01 CIRCUIT BOARD

OKUMA E0451-680-004 POWER SUPPLY

C3 CONTROLS 3629 CIRCUIT BOARD

EATON CORPORATION VTP1-H-T6 HMI

SAMSON 3351-08 VALVE

ALLEN BRADLEY 1756-PA75 SERIES B POWER SUPPLY

 ALLEN BRADLEY 1756-PA75 SERIES B POWER SUPPLY

TOSHIBA VT130G24160 DRIVE

BR 4PP320.1043-31 DISPLAY

BOSCH DDS03.1-W050-DA01-01-FW SERVO DRIVE

WATLOW Q32-481-100-BF2 CONTROL PANEL

ALLEN BRADLEY 1783-MS10T SERIES A ETHERNET SWITCH

ALLEN BRADLEY 1398-DDM-030 SERVO DRIVE

FANUC A20B-2901-0940 CIRCUIT BOARD

ALLEN BRADLEY 1398-DDM-030 SERIES A SERVO DRIVE

ALLEN BRADLEY 1734-AENTR SERIES C PLC MODULE

ALLEN BRADLEY 1786-RPA SERIES B PLC MODULE

MILACRON 32KX9 PLC MODULE

BOSTON GEAR F231D-14-B7 GEAR

BOSTON GEAR F231D-10-B9 GEAR

FANUC A06B-6087-H130 POWER SUPPLY

 FANUC A06B-6087-H130 POWER SUPPLY

BAUMULLER BUG2-60-30-B SERVO DRIVE

OMRON CS1W-CT021 PLC MODULE

ALLEN BRADLEY 25B-D024N104 SERIES A DRIVE

ALLEN BRADLEY 25B-D024N104 SERIES A DRIVE

ALLEN BRADLEY 1756-IT6I2 SERIES A PLC MODULE

ALLEN BRADLEY 1756-IT6I2 SERIES A PLC MODULE

HONEYWELL 51ML7 SWITCH

YASKAWA ELECTRIC JZRCR-NTU02D-2 DRIVE

NIOBARA RD CORP EPE5-TCP-A PLC MODULE

E-552C LENS

MAPLE SYSTEMS MAP320B-240B HMI

ALLEN BRADLEY 2711-NM2 SERIES A PLC MODULE

HONEYWELL 621-9933 POWER SUPPLY

ASEA BROWN BOVERI IMASI-23 PLC MODULE

ALLEN BRADLEY 1395-KP54EN SERIES A CIRCUIT BOARD

CONTROL TECHNOLOGY INC 2552-1 PLC MODULE

ALLEN BRADLEY 140U-J6X3 SERIES B CIRCUIT BREAKER

BODINE ELECTRIC 34Y4BFCI-E4 MOTOR

ALLEN BRADLEY 100-B180ND3 SERIES B CONTACTOR

GENERAL ELECTRIC A06B-0314-B502#7008 SERVO MOTOR

ALLEN-BRADLEY 1336 PLUS II 1336F-BRF30-AA-EN-HAS2-LA5-L4 SER B SENSORLESS

ALLEN-BRADLEY 6180W-15KPXPH VERSAVIEW 1500W SERIES A REVISION E

KEYENCE CORP SZ-V32X CAMERA

ALLEN BRADLEY 2098-DSD-020X SERIES B SERVO DRIVE

ALLEN BRADLEY 2098-DSD-020X SERIES C SERVO DRIVE

FANUC A06B-6057-H402 SERVO DRIVE

ALLEN BRADLEY 2711P-RDT10C SERIES B HMI

BR 8V1045.00-2 SERVO DRIVE

DANAHER CONTROLS 5DP2-02100 CONTACTOR

ALLEN BRADLEY 25A-D017N104 SERIES B DRIVE

ASEA BROWN BOVERI 615055-1S SERVO DRIVE

BELDEN RS2-16 ETHERNET SWITCH

VIDEOJET 390646 CIRCUIT BOARD

ADEPT TECH 10330-00400 CIRCUIT BOARD

ASEA BROWN BOVERI IMMFP-02 PLC MODULE

OKUMA BL-MC200E-12SB MOTOR

NORDSON 342315A HMI

SIEMENS 3RW4426-1BC44 MOTOR STARTER

ALLEN BRADLEY 2706-LV2P SERIES A HMI

BALLUFF BES-RPEA-8010-P-2 SWITCH

SIEMENS 6ES7142-1BD40-0XB0 PLC MODULE

G-H500C CAMERA

BELDEN MVI69-PDPMV1 PLC MODULE

ALLEN BRADLEY 809-A10E SERIES A RELAY

SIEMENS 43FP32AFE CONTACTOR

ALLEN BRADLEY 445L-R4S1680YD SERIES B LIGHT FIXTURE

HUBBELL HBL430MI7W SWITCH

HUBBELL HBL430MI7W SWITCH

TYCO 976165 PLC MODULE

FENNER M-DRIVE-4 DRIVE

ALLEN BRADLEY 2711-K5A1 SERIES C HMI

ALLEN BRADLEY 2711-K5A1 SERIES C HMI

STOBER K402AGD0230ME20 GEAR

SUMITOMO RNYM05-1430YA-100 GEAR

DWYER DL75 SENSOR

ASCO HOV1A307T171 VALVE

ALLEN BRADLEY 2094-EN02D-M01-S0 SERIES A SERVO DRIVE

RICE LAKE 170693/01 HMI

ASEA BROWN BOVERI 3HAC14505105 POWER SUPPLY

ALLEN-BRADLEY 1494V-DS200 SER B LINE TERMINAL GUARD

FANUC A02B-0261-B504 RACK

FANUC A06B-6045-H005/H006 T09 VELOCITY CONTROL IT WITH A20B-0007-0361/03A

FANUC A06B-0162-B175 SERVO MOTOR

DANFOSS 131X6884 AUTOMATION DRIVE

ALLEN-BRADLEY 20F11ND022AA0NNNNN SER A FRN 14.002 AC DRIVE

MEDAR 937-0009V2 HAND HELD TERMINAL

MEDAR 937-0009V2 HAND HELD TERMINAL

TELEMECANIQUE VW3A7707 BALLAST RESISTOR

ALLEN-BRADLEY 20F11ND022AA0NNNNN SER A FRN 11.002 AC DRIVE

INDUSTRIAL DRIVES BDS5-206-00000-402A-2-020 SERVO DRIVE

ALLEN-BRADLEY 1336S-BRF50-AN-EN4 LANGUAGE MODULE

LORAL INSTRUMENTATION SBA100F DIGITAL DATA ANALYZER

ALLEN-BRADLEY 1391-DES22-DI-AQB AC SERVO DIRVE

SIEMENS 40JG32A CONTACTOR

EMERSON ROSEMOT 3051-TA1F2B21AS1A0190A01 PRESSURE TRANSMITTER

LENZE EZN3A0110H030 MAIN FILTER

ARWANA PREMIUM PUMPS BOOSTER HI-200 INTEGRATION PUMP

EGG 302-2200 CONTROL PANEL ENCLOSURE

FUJI ELECTRIC FYC152DC1-SA AC SERVO MOTOR 1500W 123V 9.6A 200HZ

ALLEN-BRADLEY 140M-K8P-D40 CIRCUIT BREAKER

BALDOR RELIANCE CM3710T 3 PHASE ELECTRIC MOTOR

EMERSON 1220-2756-01 IDRIVE

FANUC BD02042AAA EPC BOARD

BOSTON GEAR QC726-20-B7-G WORM SPEED REDUCER

ALLEN BRADLEY 2705-K11C1 SERIES F HMI

FUJITSU AB12C-0285/CJ4 HMI

ALLEN BRADLEY 22B-V2P3C104 SERIES A DRIVE

ALLEN BRADLEY 1719-AENTR SERIES A PLC MODULE

ALLEN-BRADLEY 4100-214-RL SER D MOTION CONTROLLER

CTS 7-323-BA HEATSINK PACK OF 835

MOOG FAS Y-090-F-030-31-02-02 INDUCTION SERVO MOTOR

ALLEN-BRADLEY 2711-K6C8 OPERATOR INTERFACE