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。

Fenner M-TRIM-2 CONTROLLER DIGITAL FRONT

Sanken PC Board DK24175D no. 163561

Parker Gemini Servo Drive GV-U6E-NK

Ferraz Protistor G301467 A070URC73LI0375 700V 375A Fuse

Daishowa Seiki Shibaura - Big Zero Sensor Control Board Type Tls

Allen-Bradley 1772-MEB Memory Module

Fanuc PC Board A168-2200-0661/08C

Krones 8-098-18-017A/ 8-098-18-011A Autocol Processor Board

GE 55-153677G2 CONTACT KIT

FANUC A05B 1329 D007 CABLE

Allen-Bradley 802T-H1T Rotary Limit Switch

EATON 9-2756-1 COIL

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Industrial Dynamics 16108 Sensor Rejector Module

John Deere Piston Pump and Ring KIt 352871

Omron STI 44510-1031 SR103AM01 24 V Safety Relay

Allen-Bradley 193-TAB40 Overload Relay

Rexroth Valve Driver 43 02 002 337 500 005 0

Allen-Bradley Power Supply 1606-XL120D

1  Allen-Bradley Power Supply 1606-XL120D

Robicon 466043 Control Card

WEIDMULLER EG4-SNT-6W POWER SUPPLY 990815

84 AUTOMATION DIRECT EURO2.5 TERMINAL BLOCKS

Allen-Bradley Push Button Station 800H-2AH7 600V10A Start Stop

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Keyence PJ-V22T Safety Light Curtain

IFM EfectorInductive Sensor II5735

imation D918S3 REV G4 PC Board

1 GMF ROBOTICS FC100 ACCUFLOW

Leeds And Northrup 074699 Memory Module

Leeson Swim Pool Pump Motor A4C34DC35D 101528.00

1 Foxboro N0148UJ DIAPHRAGM ASSEMBLY

ASCO 832426 Solenoid Coil 110/120 VAC

Bussmann LPJ-225SP LOW-PEAK 600 VAC 225 A Time-Delay Current-Limiting Fuse

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Honeywell Safety Switch GKBA16L6 NO KEY

Omega Relay Board 901-090

Label Aire 201114 Circuit Card

Rexroth ZDR6DP2-42/25YM/12 Relief Valve

Rexnord 103G SLEEVE EXP BLT / 744944 Hub

Krones 8-098-18-020-A Interface I/o Board

Allen-Bradley 1771-PDC PID Control Module 2LOOP

1 ACME / STANDARD POWER SPS60-12 POWER SUPPLY

Schneider Electric 140DRA84000 MODICON QUANTUM PLC Processor

Bailey NTA104 Termination Assembly

ASCO Repair Kit 308900 Partial

Viatran 218-28W15 Pressure Transducer

Siemens 6ES7151-1AA04-0AB0 24VDC SIMATIC S7 PLC Input/Output Module

CCS Custom Control Sensors 6901GZ20 125/250VAC 30/125VDC 1/4HP Pressure Switch

Racine FE3-SBAE-M01S-33 1500 psi Hydraulic Valve

Allen-Bradley 1769-IA16 Ser A Rev 1 F/W Rev 1.1 PLC Input Module

1  Allen-Bradley 1769-IA16 Ser A Rev 1 F/W Rev 1.1 PLC Input Module

SOLA SDN-20-24-100C PLC Power Supply

Moeller NZM7-40N-NA 480 VAC 40 A Molded Case Circuit Breaker

Reliance Electric 0-49017-16A Cardpak Summing Card

LOT OF ATHENA 16-RC-F-T-00-00 TEMPERATURE CONTROL ENCLOSURES

DWYER 634A-2 PRESSURE TRANSMITTER

Hommel-Etamic 10024160 Sensor

IAI PCON-CA-42PWAI-CC-0-0-DN Drive

Helm 2313 87649 1 Ton Load Cell

STI 44506-5420 ER6022-021-NEL Safety Pull Switch

Joslyn Clark TR62-03 240V Step-Down Transformer

Crouse Hinds APJ3485 NEMA 4 30A Plug

 Crouse Hinds APJ3485 NEMA 4 30A Plug

GE 191-7Z-06K Sentrol Industrial GuardSwitch Non-Contact Interlock Switch

Yaskawa JANCD-MIO04 Printed Circuit Board

Jokab Safety JSR1T-8S Safety Relay

Yaskawa JANCD-SV02B Servo Control Printed Circuit Board

Baytek BT100R1 PCI Graphics Card

Honeywell 060-E982-01TJG Pressure Transducer

Sumitomo 02A-9U Brake Kit

National Instruments NI 9425 / 199019B-02L 32 Channel Digital Input Module

Allen-Bradley 1769-OB16 Ser B Rev 2 F/W Rev 3-1 Sourcing Output Module

 Allen-Bradley 1769-OB16 Ser B Rev 2 F/W Rev 3-1 Sourcing Output Module

ABB 3HNE 05281-1 ZENER BARRIER

Phoenix Contact QUINT-PS/1AC/24DC/3.5 2866747 PLC Power Supply

1  Phoenix Contact QUINT-PS/1AC/24DC/3.5 2866747 PLC Power Supply

Allen-Bradley 800S-1SA4 Selector Switch

1  Allen-Bradley 800S-1SA4 Selector Switch

AutomationDirect ACTR2000-42L-S ACUAMP AC Current Transducer

Warner Electric 277-0374 / P52996-54 Clutch Repair Kit

Bosch 1070078992-106 Devicenet Welding Board

SOR 101LC-KK45-M2-C1A-RRX Static'O'Ring Pressure Switch

Simpson H335-1-13-0-0-0 H335113000 Panel Meter

Yamaha RGU-2 Regenerative it

INSUL 8 11289 Insulated Copper Lug Set  Sets

Ace Controls AA1-1/2X3-1/2 Hydraulic Shock Absorber

Eaton 15-000575-0101 Dynamatic Printed Circuit Board

SealMaster CRPS-PN23 CRES PN GOLD P-7106SS Stainless Steel Moted Bearing

Analog Devices RTI-817 Signal Conditioning Board

Festo DNC-63-75-PPV Pneumatic Cylinder

Rexroth HED-8-OA-20/350K14 Pressure Switch

SMC CLK2PB50TF-75Y-B-P74SE-X1882 Pneumatic Swing Clamp Cylinder

Omron S8VM-15024D PLC Power Supply

Vickers 923447 Hydraulic Pump Cart Kit

Allen-Bradley 193-EEGE E1 Plus 18-90A Adjustable Overload Protection Relay

Crouse-Hinds CPS14R Delayed Action Circuit Breaking Receptacle

Ohmart CMPRCB-0049117 Printed Circuit Board

Allen-Bradley 1762-IQ16 Ser B Rev A PLC Input Module

 Allen-Bradley 1762-IQ16 Ser B Rev A PLC Input Module

Lenze Americas EPL-10200-XX Drive PLC

Raytek Senstemp0048 Temperature Sensor

Sullair 250038-673 Repair Kit

PHD SAH132X3-M / 11014740-01 Pneumatic Cylinder

Static'O'Ring SOR 13SC-AA5-U9-C1A-TT Explosion Proof Pressure Switch

PULS UF20.241 PLC Power Supply

Mitsubishi A1SH42 12/24V PLC Input/Output Module

Dürr M1101 0394 ST4091 Pulley Hub Assembly with Pins

Vogel OM7 11-98 TMMK06776 Motor

Littelfuse JTD450 POWR-PRO 450 A Class J Time-Delay Current-Limiting Fuse

SANYO DENKI 103-8575-5590 Step-Syn Stepping Motor

Parker 1H000010420 1.50SB3LCTJS19A2.000 1027934 Hydraulic Swing Cylinder

Allen-Bradley 1762-IQ8 Ser A Rev A MicroLogix1200 PLC Input Module

 Allen-Bradley 1762-IQ8 Ser A Rev A MicroLogix1200 PLC Input Module

BEI Encoder H25D-SS-2500-A-74C04-1116S 924-01002-1147

58A-GD45

Hubbell 460P5W 3-Pole 4-Wire 600 V 60 A 3-Phase 15 HP Male Plug

Balluff BNS 813-X710-FD-60-186-S4R Proximity Limit Switch

National Electronics TT250N1600KOF Power Block

1 AMERACE RUSSELL STOLL SKP9G EVER-LOK 20A 600VAC PLUG

KEYENCE CORP EM-038 SWITCH

JAPAN SERVO CO EWB-18-W SERVO MOTOR-

BELLOWS 3/8" VALVE K022-090

SMC ITV-1030-311N2-X26 Electro-Pneumatic Regulator

Weidmuller Connect Power 991937 2412 Power Supply

PANALARM 070-0106-5-03-N MODULE

Keyence CZ-H32 Photoelectric Proximity Sensor

1  Keyence CZ-H32 Photoelectric Proximity Sensor

Hurst Model ARDA 991223 Synchronous Instrument Motor

Holophane PTA070HPMTP LUMINAIRE

1 ECONOLINE ES15-4421 ROTARY LIMIT SWITCH SERIES 15

Yokogawa Fly Ash Filter For Probe M1234Kz-A