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。

1492-ACABLE010X | Allen Bradley | Pre-wired Cable, ,

Phoenix Contact PSR-SCP-24UC/URM4/5X1/2X2 Safety Relay,

LV429122 | Schneider | Trip it 3 Poles 690VAC 25A 50/60Hz,

ABB Bailey NTMP01 Termination it,

256-PLDW-SBBX-C5 | Crompton | Relay 415V Input 5A 250V,

7613528A3 | Topworx | Limit Switch, SPDT, 4A , 120VAC,

7PU4220-2BN20 | Siemens | Timing Relay 3A 220/240VAC 24VDC,

IPRK 95/44 L.2 | Leuze | 50022680, Photoelectric Sensor 4.2m,

Telemecanique ABE7H20E200 Relay, 16 Digital I/O Module,

6FC5270-4AX20-4AH0 | Siemens | Sinumerik 840D CNC Software for NCU 572.2,

A2USHCPU-S1 | Mitsubishi | CPU Module 24VDC 30K Step,

A2USHCPU-S1 | Mitsubishi | CPU Module 24VDC 30K Step,

NBIM02 | Bailey | Bus Interface Module,

1492-ACABLE010R | Allen Bradley | Pre-wired Cable, ,

6ES7 400-1JA01-0AA0 | Siemens | Simatic, UR2 Rack/Chassis,

6FX1 126-7BA01 | Siemens | Sinumerik 880, Memory/Page Module,

AS-BDNP-205 | Modicon | TSX Compact A120 Power Supply 24VDC,

800H-PRB16 | Allen Bradley | Bulletin 800H, Push Button, , Ser F

1492-ACAB010A46 | Allen Bradley | Prewired Cable for SLC 500, ,

A03B-0819-C002 | Fanuc | Base it I/O Module 5 Slot,

RS2-TX | Hirschmann | Ethernet Switch, 24VDC, 10/100Mbit/s, 7W,

S30861-U727-X-05 | Siemens,

A68B | Mitsubishi | Rack Extention, 8 Slot,

C200H-OC222 | Omron | Relay Output Module, 12 Point, 24VDC / 250VAC,

A62P | Mitsubishi | MELSEC, Power Supply, 85-132VAC, 50-60Hz,

GV2P16 | Schneider | Motor Circuit Breaker, Rotary Handle, 9-14A,

MRSA.B-3.04 | Leukhardt | PC Board,

3RH1122-1AB00 | Siemens | Contactor Relay 2 N.O. 2 N.C. 24VAC 50Hz,

9001/02-093-030-10 | Stahl | Safety Barrier, Single Channel, 6V,

2938730 | Phoenix Contact |,

140M-C2E-A40 | Allen Bradley | Motor Breaker 0.25-0.4A, ,

KTA7-25S-0.4A | Sprecher  Schuh | Motor Control 0.25-0.40A,

6ES7 340-1AH01-0AE0 | Siemens | Simatic S7-300 Comms Processor ,

9300-RADES | Allen Bradley | Remote Access Ethernet Modem, ,

FX-8EYT | Mitsubishi | Output Module Extension I/O 5-30VDC 0.5A,

MFH-5-1/8-B | Festo | Solenoid Valve 2-10 Bar 28-145 PSI 5/2 Way Valve,

EE-3505-751 | Fanuc | Robotic Arm Three Circuit Encoder/Brake Board,

ASK LT61/70 8M KONF | Pepperl and Fuchs |,

6ES7 141-1BF30-0XA0 | Siemens | Simatic Digital Input 8 Point Sink 24VDC,

16.85613-0005 | Man Roland | Printed Circuit Board,

1492-CB2H040 | Allen Bradley | Circuit Breaker 4A 2 Pole, ,

3UF7 101-1AA00-0 | Siemens | Current Measuring Card 2.4-25A,

7BP708.0 | BR Automation | BR Automation, Module Rack, For 8 Modules,

440N-G02123 | Allen Bradley | Non Contact Switch, Ferrogard, ,

193-ED1CB | Allen Bradley | Solid State Overload Relay, ,

IC600CB527 | GE Fanuc | I/O Control Module, Series Six, , Ser M

3RV1011-1JA10 | Siemens | Circuit Breaker for Motor Protect,

15016 | Schneider | Switch Disconnector, 63A, 4 Pole, 415VAC,

WE260-F270 | Sick | Through-Beam Photoelectric Sensor,

RM3-2RL-110 | Amalgamated Instrument | Transmitter,

6ES7 151-1AA02-0AB0 | Siemens | Simatic DP, Interface Module, For ET 200S,

1SDA051342R1 | ABB |,

1SVR630010R3200 | ABB | CT-MBS.22S Time Relay Multifction,

855T-B20FN5 | Allen Bradley | Stack Lights, Control Tower, 70mm, ,

1790L811A | Siemens | Inverter I/O, Module MicroMaster,

774180 | Pilz |, Safety Relay, 2 N.O., 24VDC,

Moxa OPT8-M9 DB62 male to DB62 female 150 cm connection cable,

TPS261**S | Toshiba | Power Supply,

L-COM HGLN-CAT6-HP Indoor Lightning Surge Protector,

P0400YC | Foxboro Invensys | I/A Series Thermocouple Input, , Ser H

16809-41/2 | Moore Products |,

LV429033 | Schneider | Circuit Trip it, 690VAC, 750VDC,

21556 | Schneider | Circuit Breaker, 10A, 1 Pole  N,

6ES7 924-0CA00-0AA0 | Siemens | Terminal Block, 8 Channel,

FT500-70-5-99 | Martens | Frequency Analog Transmitter,

SM312CVB | Banner |, Mini Beam Sensor, 475 NM Convergent,

NVFS42013FZ | SMC | Valve SOL/Pilot 110VAC,

D2-12TR | Automation Direct | Relay Output, 12 Point,

2859084 | Phoenix Contact |, Surge Supressor,

1794-OV16 | Allen Bradley | Flex I/O Output Card 16 Points, ,

Pepperl and Fuchs NJ15-M1K-A2 Block Inductive Proximity Sensor,

527.003.002 | Ferag | PC Board Assembly Drum Monitor Board Input,

BC30-30-00 | ABB | Contactor 3 Pole 24VDC Din Rail Mot,

855T-B24DN7 | Allen Bradley | Control Tower Stack Light, ,

E-FBM AT01 | Eckelmann | Terminating Module, 120 Ohm,

440N-G02095 | Allen Bradley | Ferrogard Non-Contact Switch, ,

1756-RMC1 | Allen Bradley | ControlLogix Fiber Cable, ,

D3-08NE3 | PLC Direct | Discrete Input Module, 8 Point, 24VAC/VDC,

D4DS-3AFS | Omron | Safety Switch 1/2-1/4 NTP 2 N.C.,

NJ5-18GM50-E2-V1 084484 | PepperlFuchs | Proximity Sensor,

SM-DEVICENET | Control Techniques | DeviceNet Card 1-28Wds,

ADAM-4571 | Advantech | Modum, Serial Device Server, 1 Port,

6ES5 816-1AA11 | Siemens | Operating System Commication Module,

TP-G11S | Fuji | Keypad, Operation Panel, Input Device,

AC5215 | IFM Efector | AS Interface Module, Classicline, 26.5-31.6VDC,

S2-1B3T | Datalogic | Multi Fction Sensor, Photoelectric,

P8S-GPCHX | Parker | Flow Switch Sensor PNP-NO with M8 Connector 300mm,

WTB12-3P2431 | Sick |, Photoelectric Sensor,

IN-2002-FRKG | IFM Efector | Inductive Sensor, 2mm Sensing Range,

C203.01/UC24V | Comat | Relay, 5A, 250VAC, 24VDC Coil,

855T-B24BR5 | Allen Bradley | Stack Light Tower, 170mA, ,

CA6-S1-B11 | Sprecher  Schuh | Auxiliary Contactor, 1 N.O. 1 N.C.,

13616552 | Sew | Plug For Encoder, Connection Cover, Connector Housing,

MUP 100-4 | Novotechnik | Measureing Signal Conditioner,

1771-OBD | Allen Bradley | PLC-5, Digital Output Module, 16 Point,

440N-S32015 | Allen Bradley | Interlock Switch, GuardMaster, ,

AAM51 | Yokogawa | Current Voltage Output Module, Analog, , S2

101107846 | Schmersal | Inductive Proximity Sensor,

6EP1334-2BA20 | Siemens | SITOP Power 10, Power Supply, 1200V,

SC35AA | Fuji | Magnetic Contactor, 240VAC Coil,

SK829002-B | ABB | Auxiliary Contact Block 1 N.O. 1 N.C.,

Fisher DI Direct Input Module,

KI-2015-BBOA/NI/LS-KI0207 | IFM |, Capacitive Sensor, 20-250 VAC,

161416 | Festo | Air Solenoid Valve CPV10-M1H-2X3-GLS-M7,

1771-P7 | Allen Bradley | PLC-5, Power Supply, 1200VAC, , Ser D

6FX1837-0BX01 | Siemens | Sinumerik 3 Memory Module,

CCN15-30GS60-E2-V1 | Pepperl and Fuchs | Capacitive Sensor,

VT180-P440 | Sick | Photoelectric Proximity Sensor 400mm Range,

KL4002 | Beckhoff | Analog Output Terminal, 2 Channel, 0-10V,

8030 RIM-125 | Symax | Analog Input Module, 16 Point, 800mA, 5VDC, , A2

WS160-G440 | Sick |, Photoelectric Sensor,

OJPGFPKG/SO/0,15M/US | IFM |, Retro-Reflective Sensor,

8030 RIM-125 | Symax | Analog Input Module, 16 Point, 800mA, 5VDC, , Ser D

8005 CB-60 | Symax | I/O Expansion Cable, 1M Cable,

LKM-211 | LKMelectronic | Temperature Transmitter,

TM5SPS2 | Schneider | Modicon TM5, Power Distribution Module, 24VDC,

533346 | Festo |, Solenoid Valve, Electric, , :02

6EW1380-1AB | Siemens | SITOP iversal Power Supply Module,

RC10-14-N0 | PepperlFuchs | 095912 Proximity Ring Sensor,

B9968SL | Yokogawa | Sub Power Board Assembly,

OGT-FPKG/US-100-OG5050 | IFM |, Photoelectric Sensor,

2902822 | Phoenix Contact |, Signal Conditioner,

A20B-2900-0500 | Fanuc | Memory Module, 1MB, CMOS SRAM,

FS2-60 | Keyence | Sensor Amplifier, Photoelectric, NPN, 12-24VDC, Fiber,

VMPA-FB-EPL-GU | Festo |, End Plate, Left, Port 1 G1/4,

T4000-1RBA01 | Sick | Evaluation it with 2 Safety Outputs,

3RT1 016-1BB41 | Siemens | Sirus, Power Contactor, 3 Poles,

420180 | Pilz |, Safety Relay, 6A, 250VAC,

X20 DI 4371 | BR Automation | Digital Input Module,

OF5016.OFR-FPKG/US | IFM Efector | Reflective Sensor,

CIMR-VC4A0011BAA/VZA44P0BAA | Omron | Replacment HMI, for Drive,