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。

Alpha Wire MIL-W-768 Wire White Violet 22AWG 1000V 875FT #12831

9070EO-1B Square D Transformer 0.35 - 0.50 Kva #8643

Festo 14.5" Manif 10 port #2880

Meter Metrics Current Transformer 50-400hz 600V 5 SFT-1000T #5650

Dearborn 172407 24GA MIL-W-16878 Orange 229ft # 12635

Superior Essex E10048 Fixture Wire Green 252 FT 16 GA # 12644

Hubbell Panel-Safe Port w/ Data Hwy Cat 5E Ethernet PDH5E #9331

CAT Seat Cushion Black 2G-1949 #10459

CAT 6G-8619 Caterpillar Brake Kit #11067

SMC Solenoid Valve Assembly VVQ4000 Manif w/ cords #11565

AC28400-23RTTO Western Digital IDE drive KFT-21-IT w/ Kingwin Inner Tray #8983

UFM Flow Meter SN-FSB25LM-6-32V1.0A1NL-15D #5661

Flow Meter 2 GPM LL-BBPSB2GM-6U-32V1.0-A1NR # 5669

sure-lites exit/emergency signs ex1 #5877

Static Neutralizer Power Supply 5Kv IT1205WC

Square D 9070E02D1 Industrial Control Transformer #6403

PHD CBU0 31X3-Q Linear Slide #9065

Perfecting Coupling 3" Quick Connect Fitting Series E #13021

Hoffman A-12N106 Enclosure #11204

electrical enclosure 14"x9.5"x6" #11310

7524A98G03 Westinghouse Current transformer 200:5 2A #5639

Acopian A24H850 Power Supply H8 #8687 / 8688

1  Acopian A24H850 Power Supply H8 #8687 / 8688

Byrne Interlink IQ Ellora Power Distribution Black Hardwire 12AMP 120V #9833

Square D Circuit Breaker 225A 3 Pole KAL-36225-25M #6400

automatic switch co time delay relay 188a57b #11638

GPNET Network Supply 10 RS232C #10764

Interface Board PZ1683 FBI Series # 10994

Parker PK7002AN01 Cylinder Service Kit #9015

Nagano Keiki Electronic Pressure Switch CE 20 #6437

Hansen Coupling Brass Quick Connect Fitting Series 16-ST #12998

Series 16-ST Hansen Coupling Brass Quick Connect Fitting #13002

Hansen Coupling Series 16-ST Quick Connect Brass Fitting #13003

Series 16-ST Hansen Coupling Quick Connect Brass Fitting #13004

Komatsu Kit Fuel Solenoid 1315152H91 #10665

Hansen Coupling Brass Series 16-ST Quick Connect Fitting #13008

CE20 Electronic Pressure Switch #11553

Keyence Illumination Controller CA-DC20E #10714

azco g08011c pneumatic actuator #11782

Ward Leonard 105-7520 Relay  #11969

Ward Leonard K-44856 Relay #11971

Festo MEH-5/2-4,0-S-V-1 Solenoid MEH--0,9 Coil IEBM-03 Terminal #100266

Hoffman Wall Mot Enclosure J  P  431H #9325

1  Hoffman Wall Mot Enclosure J  P  431H #9325

Hoffman A1008LP Wall Mot Enclosure JP  431H #9324

1  Hoffman A1008LP Wall Mot Enclosure JP  431H #9324

Hoffman Enclosure A808CH type 12, 13 #7425

Kabelschlepp 030.040.028 iflex Cable Energy Chain 2-pieces #10729

Electrical Enclosure 12"x9"x6.5" #11206

A806SC Hoffman Electrical Enclosure type 12 13 #8199

1  A806SC Hoffman Electrical Enclosure type 12 13 #8199

Mills Specialty Products Hydraulic Cylinder SE4-4000 #2754

Kineron Gauging Head Amp Polarizing it #7509

Byrne Power Data it Black 3-Outlet 3-Blank #9827

Byrne Power Data it Black 2-Outlet 1-HDMI 1-Blank, Interlink IQ #9826

Byrne Power Data it Ellora Black Hardwire 3-Outlet 3-Blank #9828

Byrne BE01219-B-120 Retractable Power Center Double Grommet Black #9506

Byrne Interlink IQ Adder 2-Power 2-Blanks Silver IP98003503 #9509

Byrne Multi-Outlet Power Center Silver White Hardwire Outlet USB Blank #9855

Square D  Grod Fault Relay GP-200B #4058

Hansen Coupling Series 16-ST Brass Quick Connect Fitting #13018

Hansen Coupling Series 16-ST Quick Connect Fitting Brass #12997

Brass Hansen Coupling Series 16-ST Quick Connect Fitting #13000

1/4" Furniture Connector Cap Black Qty 50 # 9717

Fabco Air E-221-XDR-E Pneumatic Pancake Air Cylinder #9058

Siemens 505-6108A 8 CH Analog Input Module #8667/8668/8669

Festo DZH-16-102-PPV-A Pneumatic Flat Cylinder #9128

Milwaukee Relay Coil 101ML6PDT #7844

ITV2050-403BL SMC Regulator #7561

A-806LP Hoffman Enclosure #7913

Miller Fluid Power Cylinder A84B2B #2500

Square D Current Transformer Cat No: 180-601 #4053

Current Transformer 120-202 siemens #3529

Eaton 64-175-1 CT transformer .500Kv 115V #4490

Byrne Power Data Multi Outlet Charging Station 3-plug in 2-USB #9735

2N-151 Electromagnetic current transformer 150:5 #6422 / 6665

Komatsu Receiver 145-Z79-5360 #5020

170R-122 Square D 1200:5 Current Transformer #6753

Festo F608 ADV-80-40-A Double Acting Cylinder #10229

Komatsu Maradyne 5305 Heater Motor 12 Volt # 10681

B-Line Systems Inc. Cut Out  Series AW1 K-2758 #8290

A-806CH Hoffman Enclosure Type 12 #7912

Caterpillar CAT 8Y-5995 Tilt Kit #5044

sensotec mvl7 long stroke displacement transducer #11744

Sato Operator Technical Reference Manual Thermal Transfer Printer M-8485S #9682

Square D Starter 120V-60hz, 110V-50hz 31041-400-42 #6271-B

 Square D Starter 120V-60hz, 110V-50hz 31041-400-42 #6271-B

CAT Valve Caterpillar P/N: 111-3430  #5176

25 - Wesko Replacement Locks 2 keys LOT #9547

SMC MXS20TN-75 Pneumatic Slide Table Linear Stage #7500

Norgren Slide 32mm guide m03-um # 12333

16/30 Wire E53039 18 AWG Style 1032 1,000 FT # 12643

Hoffman Enclosure A-843DSC Type 4 6 13 #10207

Hoffman Enclosure A-843DSC #10208

Wiegmann Jction Pull -142P Enclosure SC060604GNK w/ 220 outlet #10141

Hoffman A-843DSC Enclosure Type 4 6 13 #10143

Square D Current Transformer Type 180. 800:5 Ratio #6616

ARO L26121-100 #8231

GE THQB32050 Breaker 10,000A HI-Q #7144

 GE THQB32050 Breaker 10,000A HI-Q #7144

Electromagnetic 300:5 Current Transformer #3999

Togi TM-2001 15A 600V #8522

SMC Manif with SX3440 valves #6535

Environmental Elements Co Precipitator Contactor EEC 200 #5651

CKD Air Cylinder JSC3-CB-50NN-250YB1 #9366

Nippen Future Induction Heater it UI-3002 #8513

Reliance Electric 45C1A w/Modules 45C40,  45C66A #2485

11 - American Saw  Mfg Company Band Saw Blade 7ft 9in Lenox Lot #13106

Cap Covers Hole Covers 4,500 Plastic 1/2" Diameter 1/4" Tall #9925

CAT Plate  9W-2693 #5337

5 - Compx Timberline 175E-B Lock Black Core with 2 keys LOT #9591

Hoffman Enclosure E3PB Type 12, 13 #7463 / 7504

UFM Flow Meter LL-BBPSB2GM-6U-32V1.0-A1NR #4486

SMC MGPM32-50A Dual rod Cylinder # 7565

Festo -16-270-P-FW-CC Pneumatic Rotary Actuator #9018

1  Festo -16-270-P-FW-CC Pneumatic Rotary Actuator #9018

Festo Pneumatic -16-270-P-FW-CC Rotary Actuator #9019

1  Festo Pneumatic -16-270-P-FW-CC Rotary Actuator #9019

STI FS4316BX-1 Flexsafe #8036

EMI GSN NF10 MP Rebuild of GT Vessel Nipper Machines #11848

Hoffman Enclosure Type 12,13 E1PB #7464

1  Hoffman Enclosure Type 12,13 E1PB #7464

Electromagnetic Industries, Inc Current Transformer 5N-151 #3995

Carol E111240-B Cable with Connectors #8911

Parker Pneumatic Cylinder 01.12 USLU16 1.000 #9174

Vickers Cartridge Kit 02-102539 #2778

200 - Black Grommet Square Cover Computer Desk BULK WHOLESALE LOT #9883

39 - Everbrite LLC LED Bare Rigid Light Stripe Board Lot 600-0522 #12222

Cash  Amce Valve 1/2 Size 400 PSI B95GCSSSGTS01-D #7818

A182/sa182 Enlin 3" hose coupling #11318

American Pneumatic Cylinder 11 5000NS-3.004 #9210

1110548C2 Komatsu Site Gag # 10538