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。

Omron CS1G-CPU42H CPU Module| Programmable Controller

EXPERTCOLOR S3 Trio VIRGE DSV3325DX PCI VGA Card

Kema K

Numatics Lockout VL30N04Y Air Valve

Toshiba Samsg TS-H653 DVD-Drive

Sony MPF920-Z Floppy Disk Drive

Sony CDU5211 CD-ROM Drive

Edwards Signaling Products 104SLEDA-G1 Stdy Led Light 24V Dc Amber

Aera TC FC-PAR7820C 3030-16933 Mass Flow Controller

VarTech Systems M2-ATX-HV Automotive DC-DC Power Supply

Welch Allyn MESP2005A1881N Medical Power Supply

Meanwell PS-45-24 Open Frame Power Supply | Output Voltage; 24V1.9A

Sola SDN3040RED Power Supply

RKC Instrument THV-1PZ030-8*HN-9 Single Phase Power Controller

Supermicro PWS-801-1R Server Power Supply

 Supermicro PWS-801-1R Server Power Supply

Dell NPS-250KB A Power Supply

STORCASE DE100I-RSWC160 S20A140 5.25IN Storage Case

Sanyo Denki QS1J03AA0WNA3P01 Servo Motor Driver

BOC Edwards Y14204000 Temperature Management System

Acer LV4T_A50B Keyboard

Patlite SEFBW-D Signal Tower

Innovative Technology HS-250-10A Surge Suppresor

Everex Systems EV-941 Internal Modem Card, ISA Modem Card

Motorola M12UCH6RS7BN Nextel Radio Receiver

Adaptec ASR-2120S/64MB SCSI Controller Cards

Vox 109001-1.20 Interface Card

Dell CN-0FG015 Optiplex G270 CPU Board

Creative Technology CT4780 Sod Card

Portwell PBP-04I Backplanes

Western Digital WD2500JB-00GVC0 Hard Disk Drive

 Western Digital WD2500JB-00GVC0 Hard Disk Drive

Yaskawa YPET31001-1-0 Interface Board

Killark VP3385 Plug Assembly

Compaq 228507-001 Floppy Disk Drive

IBM 39Y9422 Heatsink

Dell 0RU676 Display Back Cover

Dell 0784CW Back Cover

Compaq 005421-001 Fan Adapter

Transition Networks RS232-CF-01 Media Converter

CommScope C195-QMQM-1M-AMBG Interconnect Cable

COMMSCOPE C195-QMQM-2M-AMBG CNT-195 Cable Assembly

Intertek 9801715 Type 604 Blower Proving Switch

Norgren R12-600-RNLA Regulator

Sanyo Denki PY2B050C62S8P01 Servo Amplifier

Yaskawa JRMSP-120XCP96000 Memocon Gl120 Battery Module

Lenovo 42W3498 Bottom Chassis

D-Link DGS-3120-24TC 2-Port Ethernet Switch

D-Link DGS-3120-24TC 2-Port Ethernet Switch

Chi Mei Optoelectronics M150X4-L06 LCD Module

Aera FC-7810CD Mass Flow Controller

Supermicro SAS743TQ SAS/SATA Hard Drive Backplane

Mitsubishi Electric F930GOT-BWD-E Operator Interface Terminal

Granville-Phillips 275262 Gauge Convectron Sensor

TDK Kepco FAW 15-10K 150W Power Supply

Cosel AC3-OHRR-00 ACE300F Power Supply

Seagate 9W2003-314 ST380011A Hard Disk Drive

Seventeam ST-250UAG-05E Power Supply

Intel NUC5CPYB CPU Board

Intel C29870-001 Pro/1000 MT Dual Port Server Adapter

Oriental Motor Vexta PK244-04A Stepping Motor

Oriental Motor Vexta PK245-01AA Stepping Motor

Iomega 5500539 Z100ATAPI Zip Drive

Bowe Systec 15-1978-1 Interface Module

Mitac 370-3171-02 Power Supply

SMC XLDQ-40-X5 High Vacuum Valve

SMC Corporation VHS30-N03-Z Pressure Relief Valve

Aaeon 1907R06P01 Riard

CKD GYX-0136 DC -0036 Check Valve

CTC Parker 05-03023-103 Interface Card

Allen-Bradley 1771-OAD/C Output Module

Allen-Bradley 1771-OAD/C Output Module

Compaq 228494-001 CPU Board with 2 Socket 370 sockets and 6 memory slots

HP Compaq 283983-001 CPU Board

Teac 19307586-30 Floppy Disk Drive

Adlink PCI-7230 16-channel Isolated Digital Input/Digital Output Card

Nvidia 256-P2-N554-AX Video Graphic Card

 · NVIDIA · NVIDIA GeForce 7600 GT · 256 MB

Compaq 231671-001 Library Controller Card

HP HP 8 G2 1411 Tablet

 · 8 GB · 8 in · Wi-Fi

Sony DW-Q120A DVD Drive

Dayton 2E848 Remote Thermostat

Banner Engineering Q19SP6LP Photoelectric Sensor

Lambda JWS600-24 648W 24V / 27A Single Output High Reliability Industrial Power

TPC Pneumatics TCDQ2B20 Air Cylinder

Intel DQ57TM Desktop Board

FMA Direct supernova 250S Microcomputer Charger

Goyen RCA-3D2 Solenoid Valve.

EOS Power VLT100-4000 100W Quad Output AC/DC Power Supply

Panalarm 91TF1T24DC Interface Module

Sanyo Denki PMDSB1S3P10 PM Driver

Axiomtek ETM831 CPU Board ****

Trenton 92-005495-00X Backplane ******

Trenton 92-005491-XXX Backplane ******

AU Optronics T215HVN01.1 LCD Modules

Vox Instruments 013096-198-14 Bracket

SMC VNB204CS-N15A-B-X247 Valve

Sanyo Denki PMDPC1S3P10 PM Driver

Keithley DAS-8/AO Converter Card

Siemens 6GK5005-0BA00-1AB2 Ethernet Switch

Siemens 6GK5005-0BA00-1AB2 Ethernet Switch

Dell STD6401LW TC4300-251 DDS4 Tape Drive

IBM 06P5379 Hard Disk Drive

HP 389895-501 M731L LP PCI-X Riard

Dell 0WX006 Rioard

Moxa C168H/PCI PCI Serial Card

IBM Travelstar DARA-206000 31L9820 Hard Disk Drive | with 6.0GB ATA/IDE 2.5"

HP 108897-001 Ethernet Card

Seagate 9BHA32-750 ST940814AM Hard Disk Drive

Toshiba MKGAS Hard Disk Drive

Cooper Power Systems 6A00174303 Control Cable

Siemens 6ES5430-7LA11 Simatic Digital Input Module

Cosel PBA300F-24 Power Supply Module

SPG S6R06GA Reversible Motor

SPG S8125GA Induction Motor

Allen-Bradley 105066-02 Circuit Board

EOS VLT60-1001 Power Supply - AC/DC Power Supply Single-OUT 12V 5A 60W 9-Pin

HP M1053-66415 Telemetry Board

SDS K4P-24V-1 890 Ohm Relay 15 Pin 24V

Matrox 553-03 Video Card

 · Matrox · 2 MB

HP 375374-001 Motherboard

Mitsubishi MR-J3-10A Servo Drive

Allen-Bradley 1771-ID16 Input Module

Western Digital WD84AA-00ANA0 8.4 GB ATA-66 Hard Drive

Areal A340 Hard Disk Drive | 340MB 2.5" IDE HDD

International Rectifier IRKJ91/06 Power Module| IGBT Module

Control Resources 042D44012-F Fan Controller

Intel C53355-401 Riard

Intel D33025 Network Adapter

Intel D33025 Network Adapter