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。

ABB CT-ERS.12S TIMER TIMING 0.05S-300H VOLTAGE 24-240VAC/24-48VDC

ABB CT-MVS.21S MULTIFCTION TIMER TIMING 0.05S-300H VOLTAGE 24-240VAC

ALLEN BRADLEY 193-ED1EB THERMAL OVERLOAD RELAY RANGE 5.4-27AMP

HYDAI UMC22B MAGNETIC CONTACTOR 22A COIL VOLTAGE 220VAC

SQUARE D OVERLOAD RELAY THERMAL IT AU183.0 LOT OF 6PCS

HYDAI HITH50H THERMAL OVERLOAD RELAY RANGE 24-32A

SCHNEIDER RM22LA32MR ELECTRONIC TIMER VOLTAGE 24-240VAC/DC

SIEMENS 3VL9800-1ST00 SHTCOIL VL630-VL1600AMP VOLTAGE 208-277VAC

SIEMENS 3VA9988-0BA23 SHTCOIL VOLTAGE 208-277VAC

SIEMENS 3RT1034 1AG20 POWER CONTACTOR 50AMP VOLTAGE 110VAC

ABB A40-30-10 MAGNETIC CONTACTOR 40AMP VOLTAGE 220VAC

HYDAI UMC25 11NR MAGNETIC CONTACTOR 25A COIL VOLTAGE 220VAC

HYDAI HIMC22W MAGNETIC CONTACTOR 22A VOLTAGE 220VAC

HYDAI ELECTRIC UMC22B POWER CONTACTOR 22A VOLTAGE 440VAC

ABB TE5S-240 1SBN020010R1003 ELECTRONIC TIMER VOLTAGE 220VAC

SPRECHERSCHUH CA8-09-10-110 POWER CONTACTOR VOLTAGE 110VAC

MERLIN GERIN 54444 SMPS OUTPUT 24VDC 1AMP

SIEMENS 7PU4140-2QN20 ELECTRONIC TIMER VOLTAGE 220VAC

MOELLER ETR4-70-A ELECTRONIC TIMER VOLTAGE 24VAC TO 240VAC

Siemens 3UG4622-1AW30 Monitoring Relay 24-240V AC/DC 0.05-15A IP20

GE GALAX 666312 GLX Q 21W 70 PANEL METER VOLTAGE 110-220VAC 10AMP

FUJI ELECTRIC TR-N5/A THERMAL OVERLOAD RELAY RANGE 53-80AMP

FUJI ELECTRIC TR-N5 THERMAL OVERLOAD RELAY RANGE 65-95AMP

DONG-A DTH-85 THERMAL OVERLOAD RELAY RANGE 45-65AMP

SQUARE D 9070TF50D1 TRANSFORMER CONTROL 50VA 4400V-110V

MICOM TIMER GT12 WESTRONICS 220VAC

SIEMENS 3UF7020-1AU01-0 BASIC IT SIMOCODE PRO S PROFIBUS DP INTERFACE FASTSHIP

ABB TMAX T1C160 CIRCUIT BREAKER 100AMP 4POLE 440VAC 25KA

T1C160 CIRCUIT BREAKER 100AMP 4POLE 440VAC 25KA

ABB OT250E03 ISOLATION BREAKER 250AMP 3POLE MADE IN FINLAND

OMRON E2E-X5Y1-53 PROXIMITY SWITCH VOLTAGE 120VAC

OMRON 61F-GH , 61F-11H FLOATLESS LEVEL SWITCH VOLTAGE 110VAC

OMRON E3D-DS70M4 PHOTOELECTRIC SWITCH VOLTAGE 24-240VAC/DC

ABB TMAX T2H 160 CIRCUIT BREAKER 52AMP 440VAC 55KA

ABB CT-MBS.22S TIMER TIMING 0.05S-300H VOLTAGE 24-240VAC/24-48VDC

SIEMENS 7PU4440-OAN20 ELECTRONIC TIMER TIMING 0.05S-1S VOLTAGE 220VAC

SIEMENS 7PU1540-0AM20 ELECTRONIC TIMER TIMING 0.06S-0.6S VOLTAGE 220VAC FASTSHIP

SIEMENS 7PU4340-2AB30 ELECTRONIC TIMER TIMING 10S-100H VOLTAGE 24VAC

SIEMENS 3TF35 00-0AP0-ZT00 POWER CONTACTOR 40A VOLTAGE 220VAC

HYDAI ELECTRIC HIMC22 MAGNETIC CONTACTOR 22A VOLTAGE 220VAC

HYDAI ELECTRIC HIBS63 CIRCUIT BREAKER 30AMP 3POLE 220VAC 25KA

LS MC-32A POWER CONTACTOR 32A 3POLE VOLTAGE 220VAC

SQUARE D FH36015 CIRCUIT BREAKER 15AMP 3POLE 440VAC 25KA

HAWKE INTERNATIONAL PL612 JCTION  

ABB YO-1SDA038292R1 / YC-1SDA038302R1 BREAKER SHT COIL VOLTAGE 220VAC FASTSHIP

SIEMENS 7PU1540-1BN41-0Z OFF DELAY TIMER TIMING 0.6S-6SEC VOLTAGE 220VDC

SIEMENS 7PU2240-3BB32-0Z ON DELAY TIMER TIMING 0.6S-6MIN VOLTAGE 24VAC/DC

SIEMENS 7PU1540-8BG31-0Z OFF DELAY TIMER TIMING 1.5S-15S VOLTAGE 110VAC/DC

HYDAI ELECTRICAL HO60BB CIRCUIT BREAKER 15AMP VOLTAGE 220VAC 10KA

SIEMENS 3VA9467-0FK51 DOOR MOTED ROTARY OPERATOR HANDLE 3VA 400-630A

S-SYSTEM S1201166724 TIMER TIMING 1S-100H VOLTAGE 24VDC

TELEMECANIQUE LX1FG360 MAGNETIC SPARE COIL VOLTAGE 440VAC

LUXCO GTN-S2 ON DELAY TIMER TIMING 0.01S-1H VOLTAGE 100-240VAC/24VDC

SQUARE D 31041-400-60 MAGNETIC SPARE COIL VOLTAGE 440/480VAC

 SQUARE D 31041-400-60 MAGNETIC SPARE COIL VOLTAGE 440/480VAC

 LISTINGSCHNEIDER ELECTRIC DM3110 THREE PHASE AMPERE METER VOLTAGE 90-277VAC

 LISTINGSCHNEIDER ELECTRIC GV2APN01 ROTARY HANDLE FOR GV2P/GV2L PCS

FUJI ELECTRIC SB-2N DC MAGNETIC CONTACTOR COIL VOLTAGE 110VAC

SCHNEIDER ELECTRIC RE17RAMU TIMER TIMING 1S-100H VOLTAGE 24-240VAC

MITSUBISHI S-K21 MAGNETIC CONTACTOR 21AMP COIL VOTAGE 110VAC

MITSUBISHI NF100-SP CIRCUIT BREAKER 15AMP 3POLE 220VAC 50KA

SOCOMEC 66930160 160A NH FUSES - PCS

ABB TMAX T1C 160 CIRCUIT BREAKER 80AMP 3 POLE 440VAC 25KA

RMNIPC CJX2-6511 POWER CONTACTOR 65AMP VOLTAGE 440VAC

FUJI ELECTRIC SC-1N MAGNETIC CONTACTOR 26AMP VOLTAGE 440VAC

OMRON CQM1-PA203 POWER SUPPLY INPUT 100-240VAC OUTPUT 5VDC 3.6AMP PPING

SCHNEIDER ELECTRIC LV833662 MX-XF/SHT-SHC SHT COIL VOLTAGE 220VAC/DC

CARLO GAVAZZI SM1252304 VOLTAGE LAVEL RELAY VOLTAGE 220VAC

S102166924 Carlo Gavazzi Timer S102 166 924 24v 1-10 Seconds

Siemens 3RT1034-1BB40 DC24V POWER CONTACTOR

TELEMECANIQUE LX1FF187 MAGNETIC SPARE COIL VOLTAGE 220VAC

TELEMECANIQUE LX1FG187 MAGNETIC SPARE COIL VOLTAGE 220VAC

ABB A26-30-32 POWER CONTACTOR 26AMP COIL VOLTAGE 24VAC

DONGA DMC-20 POWER CONTACTOR 20AMP WITH RELAY VOLTAGE 110VAC

FUJI ELECTRIC SC-5/6N SPARE COIL VOLTAGE 380-450VAC

ABB TMAX T1B160 CIRCUIT BREAKER 100A 3POLE 220VAC 25KA

3TY7520-0A CONTACT KIT FIT FOR SIEMENS CONTACTOR 3TF-52

FLEXTEMP 79 82-292 SENSOR

 LISTINGSCHNEIDER ELECTRIC DM3210 1.0 THREE PHASE VOLT METER VOLTAGE 90-277VAC

SIEMENS 3RT1034 1QB44-3MA0 POWER CONTACTOR 40AMP VOLTAGE 24VDC

TOYO KEIKI AS-62-L SOLID STATE CONTROLLER VOLTAGE 220VAC

MITSUBISHI SRS-HNPC30 TIMER TIME RANGE 30MINIT VOLTAGE 440VAC

PHOENIX 2961192 24VDC RELAY WITH BASE 2900931 LOT OF 10PCS

FUJI SW-03 3H(11)MAGNETIC CONTACTOR RANGE 0.48-0.72A VOLTAGE110VAC

WEIDMULLER TRS 24VDC 1CO RELAY 1122770000 LOT OF 10PCS

LS INDUSTRIAL SYSTEM ABH103U CIRCUIT BREAKER 15AMP 440VAC 35KA

ABB CT-ERE ELECTRONIC TIMER ON-DELAYED VOLTAGE 24-240VAC

ENTES SER-60 ELECTRONIC TIMER VOLTAGE 24-240VAC

SCHLEICHER NGZP 31 R2.064.0529.0 ELECTRONIC TIMER VOLTAGE 220VAC

EATON ETR4-11-A TIMER TIMING 0.05S-100H VOLTAGE 24-240VAC/DC

ABB CT-ERE ON DELAY TIMER VOLTAGE 220VAC

CARLO GAVAZZI PBB01DM24 ELECTRONIC TIMER VOLTAGE 24-240VAC

SIEMENS 3RP1505-1BW30 ELECTRONIC TIMER VOLTAGE 24-240VAC

SCHNEIDER ELECTRIC LC1D38P7 POWER CONTACTOR 38AMP VOLTAGE 220VAC

TRUMETER 9100 COTER/RATEMETER POWER METER VOLTAGE 85-260VAC

BRUSH 25NH-C0DB 25amp 500 volt gL/gG 120kAC Fuse Link Lot of 10Pcs

Ferraz Shawmut Lindner NH000GG50V50 50 amp 500 volt gL/gG 120kAC Lot 3P FastShip

SIEMENS 3NA3814 35A NH FUSES - LOT OF 9PCS

SIEMENS 3NA3814 35A NH FUSES - LOT OF 9PCS

SIEMENS 3NA1003 35A NH FUSES - PCS

SIEMENS 3NA1021 100A NH FUSES - PCS

SHINKO TECHNOS JCL-33A-R/M / JCL33ARM

SIEMENS 3RT1965 SPARE COIL FOR 3RT1065 VOLTAGE 220VAC

ABB CT-WBS.22S TIMER TIMING 0.05S-300H VOLTAGE 24-240VAC/24-48VDC

ABB CT-SDS.22S TIMER TIMING 0.05S-10MIN VOLTAGE 24-240VAC/24-48VDC

SIEMENS 3RN2010-1CW30 THERMISTOR RELAY VOLTAGE 24-240VAC/DC

TELEMECANIQUE GV2DM108M7 MOTOR STARTER RANGE 2.5-4A VOLTAGE 220VAC

AUTONICS ATE8-46D ELECTRONIC TIMER 6S-6H TIMING VOLTAGE 100-240VAC

TOB065DC1 THERMAL OVERLOAD RELAY RANGE 50-65AMP

DONGA DMC40 MAGNETIC CONTACTOR 40AMP COIL VOLTAGE 110VAC

DONGA DMC32B MAGNETIC CONTACTOR 32AMP COIL VOLTAGE 220VAC

DONGA DMC32B MAGNETIC CONTACTOR 32AMP COIL VOLTAGE 110VAC

HYDAI HIMC22 MAGNETIC CONTACTOR 22A COIL VOLTAGE 440VAC

SIEMENS 3VL9400-1SR00 VL160-400AMP SHT COIL VOLTAGE 110-127VAC  

FUJI ELECTRIC SC-5N(93) CONTACTOR KIT SET

TERASAKI ELECTRIC TZS-AD EARTH LEAKAGE RELAY VOLTAGE 110-240VAC

ALLEN BRADLEY 193-EEDB THERMAL OVERLOAD RELAY RANGE 1-5AMP

HYDAI UTH 32H THERMAL OVERLOAD RELAY

SIEMENS 3RP2525-1AW30 TIMER TIMING 0.05S-100H VOLTAGE 220VAC

SCHNEIDER ELECTRIC TDRPRO-5100 TIME RELAY VOLTAGE 12-240VAC

OMRON K3GN-NDT1 ELECTRONIC DIGITAL PANEL METER VOLTAGE 24VDC

DAIICHI KEIKI WT-83M-33 TRANSDUCER VOLTAGE 110VAC

S50NS CIRCUIT BREAKER 30AMP 220VAC 25KA

SCHNEIDER LT3SM00MW THERMISTOR PROTECTION RELAY VOLTAGE 24-220VAC

CARLO GAVAZZI PAA01DM24 TIME DELAY RELAY 240V AC/DC SPDT 11 PIN

TELEMECANIQUE RM4LA32MW LIQUID LEVEL CONTROL RELAY 24-240VAC/DC

MW ELECTRONIC TIMER TIMING 0.6S-60MIN VOLTAGE 12-240VAC/DC

FUJI ELECTRIC JH13PN FLICKER RELAY TIMING 0.6S VOLTAGE 24VAC/DC