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。

KEI SYSTEM BTB-DI1/01B PCB BOARD

Schneider Electric 54444 Power Supply OUTPUT VOLTAGE 24VDC 1AMP

OMRON SDV-FH2T ELECTRONIC TIMER VOLTAGE 24VDC

FUJI ELECTRIC TR-N8 THERMAL OVERLOAD RELAY RANGE 125-185AMP

LS GMC-85 POWER CONTACTOR 85AMP COIL VOLTAGE 440VAC

LS GMC-75 POWER CONTACTOR 75AMP COIL VOLTAGE 440VAC

LS GMC-65 POWER CONTACTOR 65AMP COIL VOLTAGE 440VAC

ABB INSUM MCU2 2950401 MOTOR VOLTAGE CONTROL IT

CR305C0 GE SIZE 1 30AMP MAGNETIC CONTACTOR VOLTAGE 110VAC

SIEMENS 3SK1121-1CB42 CONFIGURABLE SAFETY RELAY VOLTAGE 24VDC

HYDAI ELECTRICAL HL-100E CIRCUIT BREAKER 30AMP VOLTAGE 440VAC 75KA

SIEMENS 3VA1216-5DA22-0AA0 CIRCUIT BREAKER 160AMP 440VAC 36KA 2POLE

LS ELECTRIC MC-85A POWER CONTACTOR 85AMP VOLTAGE 220VAC 3POLE

SCHNEIDER ELECTRIC NSX160B CIRCUIT BREAKER 160AMP 4POLE 440V 36KA

Mitsubishi Electric SD-N50 Magnetic Contactor 50A Voltage 24VDC

IMCON-INTEC SPS-60S-24.3-WS POWER SUPPLY INPUT 230VAC OUTPUT 24VDC 3AMP FASTSHIP

TELEMECANIQUE LC1D80004FE7 CONTACTOR 80AMP 4POLE VOLTAGE 110VAC

ABB A95-30 MAGNETIC CONTACTOR 95AMP VOLTAGE 220VAC

Schneider Lc1d95 R7 440V AC contactor  

SIEMENS 3TC4817-0B MAGNETIC CONTACTOR 75AMP VOLTAGE 220VAC

FUJI ELECTRIC SC-2SN MAGNETIC CONTACTOR 50AMP VOLTAGE 440VAC

TELEMECANIQUE LR9F5369 THERMAL OVERLOAD RELAY RANGE 90-150AMP

SIEMENS 3RT1044-1A POWER CONTACTOR 65A VOLTAGE 220VAC

ALLEN BRADLEY 193-EEFD THERMAL OVERLOAD RELAY RANGE 9-45AMP

 ALLEN BRADLEY 193-EEFD THERMAL OVERLOAD RELAY RANGE 9-45AMP

MITSUBISHI NF100-HP CIRCUIT BREAKER 60AMP 3POLE VOLTAGE 440VAC 50KA

SIEMENS 3VA2010-4HL32-0AA0 CIRCUIT BREAKER 100AMP 440VAC 36KA 3POLE

ABB TMAX T1C 160 CIRCUIT BREAKER 125AMP 4 POLE 440VAC 25KA

SQUARE D 9070TF100D1 TRNSFORMER CONTROL 100VA 4400V-110V

SQUARE D 9070TF100D1 TRNSFORMER CONTROL 100VA 4400V-110V

MITSUBISHI ELECTRIC TH-N120KPTA THERMAL OVERLOAD RELAY RANGE 85-125A

LS MT-150/2H THERMAL OVERLOAD RELAY RANGE 95-130A

TERASAKI ELECTRIC TC-65A MAGNETIC CONTACTOR 65AMP VOLTAGE 440VAC

SIEMENS 3RT2036-1KB40 POWER CONTACTOR 50AMP VOLTAGE 24VDC

5x Siemens Sirius 3TX7014-1BB00 E-Stand: 02 -

TELEMECANIQUE LX1FH2202 SPARE COIL VOLTAGE 220VAC

MITSUBISHI FX2N-8EX-ES/UL EXPASION MODULE

SIEMENS 3TY6566-0AN1 SPARE COIL FOR 3TB56 VOLTAGE 220VAC

TELEMECANIQUE LC1D40FD POWER CONTACTOR COIL VOLTAGE 110VDC

ETN 170M9001 BUSSMAN FUSE 700AMP 1300V IR1300-100KA  

ETN 170M6689 BUSSMAN FUSE 350AMP 1250V IR1300-100KA  

ABB MS450 MOTOR PROTECTION CIRCUIT BREAKER RANGE 28-40AMP

SIEMENS 7PU3140-2BN24 TIMING RELAY VOLTAGE 220VAC

FUJI ELECTRIC SC-5N MAGNETIC CONTACTOR 93AMP VOLTAGE 440VAC

PILZ PZA 600/24VDC 1N/O 2N/C 774028 SAFETY RELAY 60S TO 600S VOLTAGE220VAC

TCE065D00F POWER CONTACTOR 65A VOLTAGE 220VAC

BARTEC GB-160/10 Jction -ATEX Baseefa07Atex0140X 7W 550V 21A

SIEMENS 3VA1110-5EE32-0AA0 CIRCUIT BREAKER 100AMP 440VAC 36KA 3POLE

HYDAI ELECTRIC HGC65 MAGNETIC CONTACTOR 65AMP VOLTAGE 220VAC 3POLE

SCHNEIDER ELECTRIC NSX100F CIRCUIT BREAKER 100AMP 4POLE 440V 36KA

SCHNEIDER ELECTRIC LC1D65 AP7 POWER CONTACTOR 65A VOLTAGE 220VAC

WAGO 857-304 POWER RELAY VOLTAGE 24VDC LOT OF 10PCS

SIEMENS 3RB2056-1FC2 THERMAL OVERLOAD RELAY RANGE 50-200AMP

TELEMECANIQUE LC1D50 P7 POWER CONTACTOR 50A VOLTAGE 220VAC

E100NS CIRCUIT BREAKER 100AMP 220VAC 25KA

TOSHIBA C-80 MAGNETIC CONTACTOR 80AMP COIL VOLTAGE 110VAC

TELEMECANIQUE LR9F5367 THERMAL OVERLOAD RELAY RANGE 60-100AMP

TELEMECANIQUE LR9F5357 THERMAL OVERLOAD RELAY RANGE 30-50AMP

ALLEN BRADLEY 100-C72*00 POWER CONTACTOR 72AMP VOLTAGE 110VAC

TERASAKI ELECTRIC T0-60BB 50AMP 3 POLE CIRCUIT BREAKER 440VAC

FUJI ELECTRIC SC-8/10N SPARE COIL VOLTAGE 380-450VAC

SIEMENS 3VF2213-0FS41-0AA0 CIRCUIT BREAKER 100AMP 220VAC 65KA

TELEMECANIQUE LC1D65 P7 POWER CONTACTOR 65A VOLTAGE 220VAC

E100NS CIRCUIT BREAKER 100AMP 220VAC 25KA

ABB TMAX T1C 160 CIRCUIT BREAKER 125AMP 3 POLE 440VAC 25KA

MERLIN GERIN NS100H TM80D CIRCUIT BREAKER 80AMP 440VAC 65KA

TOB100GC1 THERMAL OVERLOAD RELAY RANGE 70-100AMP

FUJI SC-2SN MAGNETIC CONTACTOR 50AMP COIL VOLTAGE 220VAC

FUJI SC-3N MAGNETIC CONATACTOR 65AMP COIL VOLTAGE 220VAC

FUJI SC-3N MAGNETIC CONTACTOR 65AMP COIL VOLTAGE 110VAC

OMRON H5AN-4DM TIMER TIMING 99.99S-9999H VOLTAGE 100-240VAC

TELEMECANIQUE LA5FF431 SPARE CONTACT KIT 115-150A

COOPER CROUSE HINDS GUAT24 CONDUIT OUTLET  WITH COVER SIZE 3/4

SIEMENS 3VM1163-4GE42-0AA0 CIRCUIT BREAKER 63AMP 440VAC 36KA 4POLE

TELEMECANIQUE LC1D50 11M7 POWER CONTACTOR 50A VOLTAGE 220VAC

SCHNEIDER ELECTRIC LC1D50 AP7 POWER CONTACTOR 50A VOLTAGE 220VAC

 LISTINGOEN 37D-4-24-SLDT POWER RELAY VOLTAGE 24VDC 0PCS

FUJI ELECTRIC SC-N2S(50) MAGNETIC CONTACTOR 50A VOLTAGE 110VAC

FUJI ELECTRIC SC-N2S(50) MAGNETIC CONTACTOR 50A VOLTAGE 110VAC

Allen Bradley 1769-ECR MicroLogix Compact I/O Right End Cap Cover

 Allen Bradley 1769-ECR MicroLogix Compact I/O Right End Cap Cover

Schneider Electric LADN22 Auxiliary Contactor Lot Of 10Pcs

SPRECHER SCHUH KT4-CA2-B10 MOTOR PROTECTION CIRCUIT BREAKER 0.63 TO 1.00 AMP

MITSUBISHI ELECTRIC B-N65 MAGNETIC CONTACTOR 65AMP VOLTAGE 220VAC

MITSUBISHI NF60-SP CIRCUIT BREAKER 50AMP 3POLE 220VAC 10KA

SCHNEIDER ELECTRIC LV510472 CIRCUIT BREAKER 32AMP VOLTAGE 440VAC 50KA

SIEMENS 3NA1227 250A NH FUSES - PCS

HYDAI HITH90K N0080S THERMAL OVERLOAD RELAY RANGE 60-80A

HYDAI HIMC50 MAGNETIC CONTACTOR 50A COILVOLTAGE 220VAC

HYDAI HGC50 22NS POWER CONTACTOR 50AMP VOLTAGE 440VAC

MOELLER DILM65 POWER CONTACTOR 65A VOLTAGE 220VAC

ABB YU-1SDA03814R1 BREAKER DER VOLTAGE COIL VOLTAGE 440VAC

SIEMENS 3RB2056-1FC2 THERMAL OVERLOAD RELAY RANGE 50-200AMP

3TY7540-0A CONTACT KIT FIT FOT SIEMENS CONTACTOR 3TF-54

ALLEN BRADLEY 1494V-M40 MECHANISM AND OPERATING HANDLE

SCHNEIDER ELECTRIC LX1FG415 MAGNETIC SPARE COIL VOLTAGE 440VAC

ABB AF40-30-00-13 POWER CONTACTOR 40AMP VOLTAGE 100-250VAC

CHNT CJX2-9511 POWER CONTACTOR 95AMP VOLTAGE 220VAC

ABB TMAX T1B160 CIRCUIT BREAKER 125AMP 4POLE 220VAC 25KA

SIEMENS 3UA4300-8AS THERMAL OVERLOAD RELAY RANGE 100-135AMP

ALLEN BRADLEY 1794-OW8 RELAY OUPUT MODULE 8 POINT

SIEMENS 3VJ1108-7DA32-0AA0 CIRCUIT BREAKER 80AMP 440VAC 36KA 3POLE

 LISTINGSCHNEIDER ELECTRIC LADN31 ADD ON AUXILIRY CONTACT BLOCK LOT OF 10PCS

MITSUBISHI ELECTRIC S-K65 MAGNETIC CONTACTOR 65AMP VOLTAGE 110VAC

ABB YU-1SDA038311R1 CIRCUIT BREAKER DER VOLTAGE IT VOLTAGE 110VAC

SIEMENS 3VL1712-1DD36-0AA0 CIRCUIT BREAKER 125AMP VOLTAGE 440VAC 40KA

ALLEN BRADLEY 700-TBR24 24VDC RELAY WITH BASE 700-HLT1Z LOT OF 10PCS FASTSHIP

RELCO C5-RF5640 24VDC RELAY 6 PIN LOT OF 10PCS

SCHNEIDER RM35UA13MW VOLTAGE CONTROL RELAY VOLTAGE 24-240VAC/DC

TERASAKI TK-95A THERMAL OVERLOAD RELAY RANGE 45-65AMP

ABB MS165-32 1SAM451000R1014 CIRCUIT BREAKER RANGE 23-32AMP

MITSUBISHI NF100-SH CIRCUIT BREAKER 16-25AMP 3POLE 440VAC 50KA

WEIDMULLER MRZ 5VDC 1CO RELAY 8556150000 LOT OF 10PCS

HYDAI ELECTRIC HGC50 POWER CONTACTOR 50AMP VOLTAGE 220VAC

MITSUBISHI NF100-HP CIRCUIT BREAKER 15AMP 3POLE 440VAC 50KA

SIEMENS 3VF2213-0FN41-0AA0 CIRCUIT BREAKER 63AMP 220VAC 65KA

TELEMECANIQUE LC2D25M7 REVERSING CONTACTOR 25A VOLTAGE 220VAC

SCHNEIDER ELECTRIC LC1D40 P7 POWER CONTACTOR 40A VOLTAGE 220VAC

SCHNEIDER GV3ME40 MOTOR PROTECTION CIRCUIT BREAKER RANGE 25-40AMP

SIEMENS 6SL3255-0AA00-4CA1 SINAMICS BOP-2 SCREEN

SIEMENS 6SL3255-0AA00-4CA1 SINAMICS BOP-2 SCREEN

SIEMENS 6ES7138-4CA01-0AA0 POWER MODULE

 SIEMENS 6ES7138-4CA01-0AA0 POWER MODULE

SIEMENS 6ES7138-4FB01-0AB0 POWER MODULE

SIEMENS 6SL3255-0AA00-4CA1 SINAMICS BOP-2 DISPLAY

SCHNEIDER RM35JA32MW MULTIFCTION TIMER VOLTAGE 24-240VAC/DC

BRODERSEN PXT-10.924 TEMPRATURE CONVERTER VOLTAGE 24VDC

SIEMENS 3VT1708-2DC36-0AA0 CIRCUIT BREAKER 80AMP VOLTAGE 440VAC 25KA

SCHNEIDER 33671 200-250V AC/DC CIRCUIT BREAKER DERVOLTAGE TRIP

TELEMECANIQUE RM35ATL0MW ELECTRONIC TIMER VOLTAGE 24-240VAC/DC

ABB CM-SRS.22S OVER/DER MONITERING RELAY VOLTAGE 220VAC