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

TELEMECANIQUE LR9F5371 THERMAL OVERLOAD RELAY RANGE 132-220A

ALLEN BRADLEY 1771-IFE/C ANALOG INPUT MODULE (12BIT)

Phoenix Contact 2903904 ELR H5-IES-PT-24DC/500AC-2 Motor Starter Module Fast

Wago 750-315 Modbus FieldBus Coupler Module

SQUARE D KA36175 CIRCUIT BREAKER 175AMP 440VAC 25KA

GOULD CONTROL  SYSTEM A103D SIZE 2 CONTACTOR 50A VOLTAGE 110VAC

ITE IMPERIAL CORPORATION A203D SIZE 2 CONTACTOR 50AMP VOLTAGE 110VAC

ABB AX150-30-11-80 POWER CONTACTOR 150A COIL VOLTAGE 440VAC

ALLEN BRADLEY 505-TOD SIZE 0 REVERSING STARTER VOLTAGE 110VAC ING

ALLEN BRADLEY 505-TOD SIZE 0 REVERSING STARTER VOLTAGE 110VAC ING

SIEMENS 3VT9325-6AC00 CIRCUIT BREAKER TRIP IT 250AMP

SIEMENS 3RG6252-3BF00 SENSOR VOLTAGE 20-30VDC

SIEMENS 3VJ1012-3DB32-0AA0 CIRCUIT BREAKER 125AMP 440VAC 25KA 3POLE

SIEMENS 3VA2010-5JQ32-0AA0 CIRCUIT BREAKER 100AMP 440VAC 55KA 3POLE

MERLIN GERIN VIGIREX RH328AP 50683 RELAY VOLTAGE 220VAC

LANNG  STELMAN 1161-001 RMM BRIDGE CONTROLLER

Wago IO System 750-842 Ethernet Modbus TCP Controller

TELEMECANIQUE LR1F105 THERMAL OVERLOAD RELAY RANGE 75-105A

SCHNEIDER ELECTRIC LA5FG431 LC1F185/225 SPARE CONTACT KIT

TELEMECANIQUE LA5FG431 LC1F185/225 SPARE CONTACT KIT

SCHNEIDER ELECTRIC RM4JA32F CURRENT MEASUREMENT RELAY VOLTAGE 110VAC

SCHNEIDER ELECTRIC LV33671 MN DER VOLTAGE COIL 220VAC/DC

SIEMENS SIRIUS 3RW4024-1BB14 SOFT STARTER 12.5AMP VOLTAGE 110-230VAC

GE TED136YT100 CIRCUIT BREAKER 100AMP 3POLE 440VAC 14KA

TORAY ENGINEERING SR-11-C INTRINSICALLY SAFE RELAY DEVICE 20VDC

ALLEN BRADLEY 609T-AOW MANUAL MOTOR STARTER SWITCH NEMA SIZE 0

FUJI ELECTRIC SC-N4 (80) MAGNETIC CONTACTOR VOLTAGE 110VAC

SQUARE D 8502SA012S NEMA SIZE 00 MAGNETIC CONTACTOR VOLTAGE 110VAC

SIEMENS 3RA6120-0EB30 COMPACT STARTER, DIRECT, 8-32AMP, 24VAC/DC, 50/60HZ

SCHNEIDER ELECTRIC LR9F5367 THERMAL OVERLOAD RELAY RANGE 60-100AMP

SCHNEIDER ELECTRIC LC1D115 POWER CONTACTOR 115AMP VOLTAGE 440VAC

YAMATAKE-HONEYWELL J-SSP50-22 CONTROLLER VOLTAGE 24VDC

TERASAKI ELECTRIC T0-100CB CIRCUIT BREAKER 100AMP 3OLE 440VAC 25KA

SIEMENS 3RT1044-1AP60 POWER CONTACTOR 65AMP COIL VOLTAGE 220VAC

MITSUBISHI TH-N220KP THERMAL OVERLOAD RELAY RANGE 120-180AMP

SIEMENS 3RU2366-5DB10-8K THERMAL OVERLOAD RELAY RANGE 110-160AMP

Allen Bradley 20-COMM-E  PowerFlex ENet/IP to DPI Adapter Powerflex 70

Allen Bradley 20-COMM-E  PowerFlex ENet/IP to DPI Adapter Powerflex 70

ALLEN BRADLEY CAT 1403-DMB POWERMONITOR II DISPLAY SERIES B

CARLO GAVAZZI PIC01CB23AV0 PROCESS SIGNAL RELAY VOLTAGE 115-230VAC

SIEMENS 3TY6583-0AM0 SPARE COIL FOR 3TB58 VOLTAGE 220VAC

BENDER RCMA472LY CURRENT MONITOR RELAY VOLTAGE 220VAC

ABB AX115-30 MAGNETIC CONTACTOR 115AMP VOLTAGE 24VDC

FUJI ELECTRIC SC-8N MAIN CONTACT KIT SET COMPLETE 180AMP

KEI SYSTEM BTB-D01/02A PCB BOARD

HYDAI UMC50 POWER CONTACTOR COIL VOLTAGE 440VAC

SCHNEIDER 3MZ2-WRDUW ELECTRONIC CONTROLLER RELAY VOLTAGE 240VAC

SIEMENS 3TK2827-1AL20 SAFETY RELAY VOLTAGE 220VAC

DELIXI ELECTRIC CDM3-250S/3300 CIRCUIT BREAKER 250AMP 440VAC 35KA

FUJI TK-N8P THERMAL OVERLOAD RELAY RANGE 125-185AMP

SIEMENS 3RS1140-1GD60 TEMPERATURE MONITORING RELAY

ABB TMAX T3N 250 CIRCUIT BREAKER 250AMP 3POLE 440VAC 25KA

ABB TMAX T3N250 CIRCUIT BREAKER 250AMP 4POLE 440VAC 25KA

M-SYSTEM TECHNOLOGY L4AS-1A2-R QUAD DC ALARM VOLTAGE 24VDC

Schneider GFP13 Grod Fault Protector 0.5-3 Sec Relay

ALLEN BRADLEY 609TU-BAB MANUAL STARTER NEMA SIZE 1 VOLTAGE 440VAC

ALLEN BRADLEY 1606-XL180B POWER SUPPLY IN 100-240VAC OUT 12-15VDC 15AMP FAST

Anzeige print katadyn schaltschrank A/B KUK electronic 540-21 A Cicuit PCB

SIEMENS 7KT0310 SMART MULTIFCIONAL METER VOLTAGE 95-240VAC

SCHNEIDER ELECTRIC NSX250F CIRCUIT BREAKER 4POLE 200AMP 440V 36KA

Mitsubishi FX3S-10MR/DS MELSEC iQ-F it module DC24V Japan

SCHNEIDER EM6400 DIGITAL POWER AND ENERGY METER VOLTAGE 110-240VAC

Wago 750-452 Buscoupler DeviceNet Module PLC

SIEMENS 3VL2706-1SG36-0AA0-Z CIRCUIT BREAKER 63AMP 3POLE 440VAC 55KA

SIEMENS 6GK7242-5DX30-0XE0 S7-1200 COMMICATION PROFIBUS MODULE CM1242-5

ALLEN BRADLEY 1771-OBN/B ANALOG OUTPUT MODULE 10-30VDC

SIEMENS 3VA2040-5HL32-0AA0 CIRCUIT BREAKER 40AMP 440VAC 55KA

MITSUBISHI ELECTRIC S-N95 MAGNETIC CONTACTOR 95AMP VOLTAGE 220VAC

KEI SYSTEM BTB-PW1/01 PCB BOARD

MITSUBISHI NF225-CS CIRCUIT BREAKER 200AMP 3POLE 440VAC 15KA

FUJI ELECTRIC SC-11N SPARE COIL VOLTAGE 380-450VAC

ABB A110-30 MAGNETIC CONTACTOR 110A COIL VOLTAGE 110VAC

FUJI ELECTRIC SC-N4(80) MAGNETIC CONTACTOR 80AMP VOLTAGE 440VAC

SCHNEIDER ELECTRIC LC1D80 P7 POWER CONTACTOR 125AMP VOLTAGE 220VAC

MITSUBISHI FX2N-4DA PROGRAMMABLE CONTROLLER IT

ALLEN BRADLEY 1771-ASB/E REMOTE I/O ADAPTER MODULE

Allen Bradley 1771-IBN C MODULE 10-30V DC INPUT MODULE

ALLEN BRADLEY 1771-OFE2/B ANALOG OUTPUT MODULE

ABB 1SAZ911201R1004 TF96-78 THERMAL OVERLOAD RELAYRANGE 65-78

KEI SYSTEM BTB-A112/01A PCB BOARD

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

SCHNEIDER ELECTRIC RM35TF30 MULTIFCTION RELAY VOLTAGE 220-480VAC

CARLO GAVAZZI S112166230 INTERVAL TIMER VOLTAGE 220VAC

SCHNEIDER ELECTRIC LA5FF431 LC1F115/150 SPARE CONTACT KIT

PEPPERLFUCHS WE77/EX.2 SWITCHING AMPLIFIER VOLTAGE 220VAC

LOVATO BF80 POWER CONTACTOR 80A 3POLE VOLTAGE 220VAC

ALLEN BRADLEY 592-EUTD EUTETIC OVERLOAD RELAY

 ALLEN BRADLEY 592-EUTD EUTETIC OVERLOAD RELAY

COOPER CROUSE HINDS GUAX24 CONDUIT OUTLET  WITH COVER SIZE 3/4

TERASAKI TEMBREAK XS100NB CIRCUIT BREAKER 30AMP 440VAC 25KA

SCHNEIDER ELECTRIC TM200CE40T MODICON LOGIC CONTROLLER PLC

TOSHIBA SRT012 AB605 T98442 ANALOG MODULE

GE CL08A300M POWER CONTACTOR 80AMP COIL VOLTAGE 220VAC CL08A311ML

PHOENIX CONTACT QUINT4-PS/1AC/24DC/10 POWER SUPPLY IN 100-240VAC/DC OUT24VDC 10A

AEG LS 55K POWER CONTACTOR 100AMP COIL VOLTAGE 220VAC

SCHNEIDER ELECTRIC LX9FH1102 MAGNETIC SPARE COIL VOLTAGE 110VAC

ABB TMAX T2N 160 CIRCUIT BREAKER 160AMP 3 POLE 440VAC 36KA

ABB 1SAZ811201R1006 TF65-60 THERMAL OVERLOAD RELAY RANGE 50-60AMP

MITSUBISHI NF100-SH CIRCUIT BREAKER 63-80AMP 3POLE 440VAC 50KA

AUTONICS LE7M-2 INDUSTRIAL ELECTRONIC DIGITAL TIMER VOLTAGE 100-240VAC

Mitsubishi FR-D720S-042-EC Electric Inverter D700

MITSUBISHI A1S61PN MELSEL-Q POWER SUPPLY IT OUTPUT 5VDC 5A

MITSUBISHI FXON-8EX-ES/UL PROGAMMABLE CONTROLLER INPUT MODULE

MITSUBISHI FX2N-1PG-E PROGRAMMABLE CONTROLLER DIGITAL MODULE

SCHNEIDER ELECTRIC LV510305 CIRCUIT BREAKER 63AMP VOLTAGE 440VAC 50KA

AEG LS37K.22-00 POWER CONTACTOR COIL VOLTAGE 220VAC/DC

FUJI ELECTRIC SC-5-1RM(19) REVERSIBL CONTACTOR COIL VOLTAGE 110VAC

SIEMENS 3RK1402-3CE00-0AA2 AS-INTERFACE MODULE

SIEMENS 3TB48 17-0A POWER CONTACTOR 3POLE 80AMP VOLTAGE 440VAC

SELCO M8100.0080 SYNCHROSCOPE METER VOLTAGE 110VAC

PULS DIMENSION UC10.241 POWER SUPPLY DC TO DC CONVERT

KEI SYSTEM BTB-251/01 PCB BOARD

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

GE CR305C0 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 FAST

SIEMENS 3KL47 30-1YA00 FUSE SWITCH HEAVY DUTY 32AMP 3POLE 500V

ALLEN BRADLEY 1761-NET-DNI DEVICENET INTERFACE VOLTAGE 24VDC

ALLEN BRADLEY 800R-1HAM4RL EMERGENCY PUSH BUTTON

ALLEN BRADLEY 592-EUTD THERMAL OVERLOAD RELAY