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。

Hitachi 5541873-B Transceiver Optical 8GB SW 850nm HDS VSP SFP " Lot of 8 "

Delta DPS-145PB-8 REV:D0 145W POWER SUPPLY

Chi Mei G121X1-L01 Rev:C1 12.1'' LCD Panel w/ Touch

E610.K013 098516 BOARD

Molecular Devices 0400-0510 REV:D 0300-0510 REV:D Keyboard / Display Driver

Comverse Network 56-308-0005 Rev:A1 ICM MVIP Booster Modul Board

Dust Photonics ES DPQA-E100-003 100GB/S QSFP28 AOC 3m cable

Ciena NTTP05EFE6 NTTP05EF E6 , WMOTCWSJAA OC-12 LR-1 / L-4.1 SFP

Mellanox SA002142 Rev:A1 Board

Nortel "" NTTP11AFE6 FC100 MX/FC200 MX/FC400 MX 850nm SFP

JDSU DA21CS00C-33 SFP 3.1G -100M  1G Ethernet  2G/1G FC, 1550.92nm, 120km,DWDM

JDSU DA21CS00C-45 SFP 3.1G -100M  1G Ethernet  2G/1G FC, 1541.35nm, 120km,DWDM

 HP Indigo MPX-2628-02 SOLIDS OUTLET

Cisco 72-2761-02 Coaxial Cable

HP PHILIPS 77110-00340 77110-27100 77110-27200 POWER BUSS for HP Sonos 5500

HP Agilent E6473A Direct Connect Hub

ASUS H81T/CSM MINI ITX REV 1.0 DDR3 1066 LGA 1150 MOTHERBOARD

JDSU DA21CS00C-19 SFP 3.1G -100M  1G Ethernet  2G/1G FC, 1562.23nm, 120km,DWDM

Intel DH67BL Motherboard LGA 1155 USB 3.0 LAN VGA DVI HDMI SATA RAID G10189-211

 Intel DH67BL Motherboard LGA 1155 USB 3.0 LAN VGA DVI HDMI SATA RAID G10189-211

HP 378750-B21 3.5GHz INTEL XEON CPU W/ HEATSINK ON VRM

Intel Xeon Core L5638 SLBWY 2.0GHz 12MB 5.86 CPU Processor

ECS H61H2-M2 V:1.0 pc3 motherboard w/ I3-2100 SR05C CPU PROCESSOR

OLYMPUS LCD MONITOR MAJ-1034 TV TYPE PAL 12V 9.6W

IBM 44X2459 46C4455 44X2458 9CA158-176 1TB 7200 7.2K SATA Hard Disk HDD 3.5"

 ListingBOE HT170E01-300 17'' 1280*1024 Lcd Screen Panel

VARIAN 87195813 87195813-00H 991978 991978-02A AP  F BOARD

VARIAN 87195843 87195843-00E 992312 992312-01A AMP  ROUTING BOARD

Lenovo / Seagate 45K0648 1TB SSHD 6G MLC SATA III 3.5" Large

IBM Lenovo 04W0433 0A66622 LTN141BT08 T400S T410S T410SI LCD Screen 14.1" WXGA

IBM  Lenovo T530 T520 E535 15.6" HD Lcd Screen 04W3339 LP156WH4(TL)(P1)

 Lenovo 04W0606 Lenovo ThinkPad T520 W520 Palmrest Cover Upper Case

IBM Lenovo 04Y2007 System Board INT 14D w/ oWW TPM=Y For Lenovo Thinkpad L430

IBM Lenovo 89Y9301 Thinkcentre Planer M58 M58p Motherboard System Board 3063

Bruker 08411 BFA HVS 345-02 A 1 Model HVS1

Bruker HVC1 HVC 344-02 01 08417 Spectrometer

IBM 6273034 3480 RAIL ASSEMBLY INPUT RIGHT

Zebra DS2208 Series Handheld 1D and 2D Imager w/ Stand, DS2208-SR00007ZZWW

OLSON 9106 9106/INLET/CLIPS 10A PDU

LOT OF 13 MCL ANNE-50 DC-18GHZ 3 1823 SMA Mini-Circuits

Kyocera KPA-104-8MTA4-DMX2 Datamax Print Head

NEXSAN Technology SATABOY RAID Power Supply Blu Tek Power BPA-R500-4BF 500W

Lambda H22039 Sirius CS250EI 5/12 5/12E Power Supply

Spower model SPX-0179 Power Supply 400W

AcBel API3FS43 500w PSU Power Supply

SOMMY AN708 SERIES ADJUSTOR AN708-4F-R28 Temperature controller

Infortrend EonStor SCSI RAID Controller Module ESA16U-G2421 83AU24GD16-0010

Anorad SQ Logic 806-74502255-00 802160-1 Viscom Vision Linear Encoder Module SQ

Analog Devices EVAL-ADXL362Z-MLP ADI INERTIAL SENSOR EVALUATION SYSTEM REV:6.5

Fuji Electric SC-N4/SE (80) SC80BAS 3NC2T/SE Magnetic Contacto Coil=24VDC. AC25-

Anritsu Wiltron Microwave RF Directional Coupler ND19383 J2 -23DB w/ 43KA-6

RED LION CONTROLS LNXT-1000 Digital Panel Meter

Radwin Winlink 1000 HSSU-10 P/N AT0060950

NAGANO ZT60-W02 Digital Pressure Gauge 0.1~0.5MPa W/ ZT17-Z51 Valve Sensor

PHOENIX CONTACT TYP UM 1605327-04

SCOPUS E1000 DVX-II PLA Card 502413 REV C

BP2624 REV:02 LAMP FOR Roche Omni S System

BRSWICK SCIENTIFIC DISPLAY PCB M1224-7001 REV. B

03791181001 REV:03 BOARD FOR Roche Omni S System

SCOPUS E1000 DVX-II PLA Card 502413 REV E

Motherboard Interface PCB 1052144 REV AC

Altera CyclP1GBV05 Card BRACKET-VIDEO-16-2 REV. 02 20041124

Hkeler 8200-00088 Board

Beckman Coulter 4705 HV DAC CARD 1713729C 6707203 6323746 BOARD

PGI CRASH DETECTION BOARD K508-1556-02 260-1822

OCLARO LC25W2955EA-J34 Optoelectronic Device 1529.55nm

Canal Finder Racleurs H Files 21mm Size: 25  of 6

ZIPPY P2H-5500V 100-240V 47-63Hz 8-4A 500W

Hanson 74-105-201 Spin On/Off Paddle PVDF Solid PTFE Moulded USP All Teflon

AVAGO FIBER OPTIC RECEIVER HFBR-782BEPZ

FISCHER CONNECTORS 126345 CA SS104-16ST-KSE104-16ST2.5m IND CABEL

ST-INDUSTRIES 20-0313-0000 KIT OF OSRAM BULBS FOR MICROSCOPE W/1X XENOPHOT 64627

71653120 05JM04222 11.5X20 Part

Andrew 164SEM 40626C  163/64 207169A Connector Assembly w/Hardware Heliax

ITS Telecom MusicTel-Net IP/MP3 Messaging On-H System

Cohu Camera Control it 8108-5 ISCAN EC-640HS

Pilz PZE X4V 1/24VDC 4n/o fix 24 VDC Safety Relay PZEX4V1/24VDC4n/o fix 774581

LOT OF 8 MACRONIX INTERNATIONAL MX68GL1G0FHXFI-11G NOR Flash Parallel 3.3V

ACTI CONNECTING VISION ACM-5601B MPEG-4 SP, MJPEG MEGAPIXEL IP INDOOR  CAMERA

MicroWave Omni Spectra 4064-0000-00 04-1034339 OSMM NGC Coaxial Connector

BEING Dental Standard Head High Speed Handpiece Wrench Type LOTUS 401-M4(P)

RENAISSANCE 2A7NAA RF Coaxial Circulator

MG35TC-28 Coaxial Double Balanced Mixer 4.5-14.5 GHz

ISYS 7020 8392-000 68762491-000 PCB CSE CDH2 CARD

Avigilon 2.0MP-HD-DN High Definition IP Camera 9W 12-24VDC/24VAC

ATERA Networks CITADEL CLX-400 Router

Cirrus Logic CL-GD5905-20DC-1.21 ISA AVGA3 VGA Video Graphics Card

MINI-MICROPH005003 DC 12V INPUT/RCA MALE OUTPUT FREQUENCY: 20-16000HZ

2 OF "THE EYE OF JUDGMENT" Cards With camera for SPS3

Mellanox MMA2L20-AR SFP 25GbE, 25Gb/s , SFP28, LC-LC, 1310nm, LR 10km

MEN WELL S-1000-48 Switching Power Supply 48VDC 20A 200/240Vac 10A

S 540-5936-01 36GB Hard Drive SCSI Seagate ST336607LC

S 390-0109-03 36GB Hard Drive SCSI Seagate ST336607LC

Victor SINOMETER VC2002 FCTION SIGNAL GENERATOR

Magellan 111050 A12/AC12 GPS Sensor

Sophos XG 85 Rev.1 Security Appliance 4PORT

NetApp X1120A-R6 Dual-Port RJ45 10GBASE-T Network Interface Card 111-01688A0

Cisco SG110D-08HP 8-Port Gigabit PoE Desktop Switch (no adapter)

4X Finisar FCMJ-8520-3 1.25Gbps 1000Base-T Copper 100m RJ-45 Connector SFP Lot

SuperMicro X8SIT-F LGA1156 BOARD w/ Intel Xeon X3430 SLBLJ CPU Processor

EMC 110-113-112B DATA MOVER 12GB RAM STORAGE PROCESSOR

DELL 942V6 X520-DA2 10Gbps Dual Port SFP PCI-E INTEL Network Card Low Profile

D SMDELL 942V6 X520-DA2 10Gbps Dual Port SFP PCI-E INTEL Network Card Low Profile

Dell T135H - 180 Watt Power Supply it PSU For Dell Dimension 2010,

Lenovo 00MJ176 0.6m SAS Cable (mSAS HD to mSAS HD) 00y2465

Iomega ix2-ng 31997000 StorCenter ix2 NAS server NO HDD NO ADAPTER

LENOVO 42T0360 Laptop LCD Screen 1920x1200 15.4" FOR T60 T61 R500 T500 W500

DWIN A100 DMT12800T101_32WT MONITOR LCD TOUCH PANEL

DWIN A100 DMT80600T080_32WT MONITOR LCD TOUCH PANEL DMT80600T080-31W/32W V2.2

IVAC Infusion Pumps 598XFX 598 Volumetric Infusion Pump

 ADVENCED BE12A6E-INV Brushless PWM Servo Amplifier ( )

CRS SC-4M-SA SC04-00482 CONTROL IT

Alcatel-Lucent Verizon Omni PCX UAI-16-1 3EH73050ABAB 05 Card

HP 578819-001 598256-001 Smart Array BL465c/685c G7 578820-001 w/ Battery

Thermo Main/mono Board Assembly 512-204000 / 4001-6244 REV:D

IBM 49Y6098 49Y6097 49Y6101 IBM SYSTEM X 450GB 15K RPM 6Gb/s 3.5" SAS Hard Drive

ILNP-PA2 MOTERBOARD FOR POSBANK ANYSHOP D5

SAMSG JC97-04320G CONTROL PANEL

SHIMADZU ECD ECD-9A/14A 221-25315-92 PCB BOARD

EMC 071-000-578-01 AcBel SGA005 VNX5200 VNX5400 VNX5600 1100W POWER SUPPLY

SHIMADZU FID 221-23820-91 PCB CARD

Ericsson PSU AC 03 BML 161 184/1 r1n POWER SUPPLY

23-227-006 w/ 20-753-001 PCB BOARD FOR LAMBDA EMI ESS POWER SUPPLY 00481414

A1000 PCB BOARD 20-761-002 REV:C FOR LAMBDA EMI ESS POWER SUPPLY 00481414

23-227-001 w/ 20-753-001 PCB BOARD FOR LAMBDA EMI ESS POWER SUPPLY 00481414

Mellanox CX313A MCX313A-BCCT REV:A7 ConnectX-3 Pro Single-Port QSFP ETH

HP Agilent REPLACEMENT BULB FOR G1306A 1050 Diode Array Detector

Integrated Power Designs SRW-115-3001-1 Power Supply

Integrated Power Designs SRW-115-3001W Power Supply

Dell R3F0N Mellanox CX324A conncetx-3 40G Dual Port Ethernet Adapter

Lucent GX550 11580 810-00162-03 BAI3CD0BAB 4-Port OC3/STM-1 SMF IR Rev 06 mod