IC693MDL648##IC693MDL648

IC693MDL648

IC693MDL648

IC693MDL648

CPU主要由運算器、控制器、寄存器及實現它們之間聯系的數據、控制及狀態總線構成,CPU單元還包括外圍芯片、總線接口及有關電路。內存主要用于存儲程序及數據,是PLC不可缺少的組成單元。

在使用者看來,不必要詳細分析CPU的內部電路,但對各部分的工作機制還是應有足夠的理解。CPU的控制器控制CPU工作,由它讀取指令、解釋指令及執行令。但工作節奏由震蕩信號控制。運算器用于進行數字或邏輯運算,在控制器指揮下工作。寄存器參與運算,并存儲運算的中間結果,它也是在控制器指揮下工作。


CPU速度和內存容量是PLC的重要參數,它們決定著PLC的工作速度,IO數量及軟件容量等,因此限制著控制規模。

I/O模塊

PLC與電氣回路的接口,是通過輸入輸出部分(I/O)完成的。I/O模塊集成了PLC的I/O電路,其輸入暫存器反映輸入信號狀態,輸出點反映輸出鎖存器狀態。輸入模塊將電信號變換成數字信號進入PLC系統,輸出模塊相反。I/O分為開關量輸入(DI),開關量輸出(DO),模擬量輸入(AI),模擬量輸出(AO)等模塊。

常用的I/O分類如下:

開關量:按電壓水平分,有220VAC、110VAC、24VDC,按隔離方式分,有繼電器隔離和晶體管隔離。

模擬量:按信號類型分,有電流型(4-20mA,0-20mA)、電壓型(0-10V,0-5V,-10-10V)等,按精度分,有12bit,14bit,16bit等。

除了上述通用IO外,還有特殊IO模塊,如熱電阻、熱電偶、脈沖等模塊。

按I/O點數確定模塊規格及數量,I/O模塊可多可少,但其最大數受CPU所能管理的基本配置的能力,即受最大的底板或機架槽數限制。

電源模塊


PLC電源用于為PLC各模塊的集成電路提供工作電源。同時,有的還為輸入電路提供24V的工作電源。電源輸入類型有:交流電源(220VAC或110VAC),直流電源(常用的為24VDC)。

底板或機架

大多數模塊式PLC使用底板或機架,其作用是:電氣上,實現各模塊間的聯系,使CPU能訪問底板上的所有模塊,機械上,實現各模塊間的連接,使各模塊構成一個整體。

Wavetek Acterna JDSU SDA-5500 Sweep Manager 4 SDA-5000

Fluke Networks LinkRunner & MicroScanner Network Tester

Fluke Networks OptiView Workgroup Analyzer OPV-WGA/PRO

Sunrise Telecom ADSL Module SSxDSL-15 SunSet MTT & xDSL

Fluke Networks DTX-AXTK1 Module For DTX-1800 DTX AXTK1

Fluke Microtest SimpliFiber MM Fiber Loss Tester Kit

Fluke Networks LinkRunner Network Multimeter Tester Set

EXFO FLS-241 Visual Fault Identifier Universal VFL

Fluke Networks OptiView Workgroup Analyzer OPV-WGA OPV

JDSU OLS-6 Singlemode Fiber Laser Light Source OLS

Wavetek Acterna JDSU SAM 4040 Signal CATV SAM4040 Meter

Wavetek JDSU Acterna SDA-5000 CATV Rev PrtblTrn SDA5000

GN Nettest FI720 Optical Fiber Identifier FI 720 FI-720

Acterna JDSU HST-3000 DSL Tester HST 3000 ADSLR HST

Fluke Networks DSP-Spool For DSP-4000 DSP-4100 DSP-4300

Fluke Microtest PentaScanner 350 Cat5 Cable Certifier

JDSU Acterna DSAM-1000B Digtal CATV Meter DSAM1000 DSAM

Wilcom F6121A Optical Fiber Identifier OFI Probe 6121A

EXFO PPM-350B SM Fiber PON Power Meter FTTx PPM-350 PPM

Fluke 61 Handheld Infrared Thermometer IR

Fluke 199B ScopeMeter HandHeld 200Mhz Oscilloscope 199

Trilithic Guardian RSVP 2 ReversePath Tester RSVP2 CATV

Fluke Networks MicroScanner 2 Network Cable Tester

Trilithic TR-2 CATV Signal Level Meter 46 - 864 MHz TR2

Sadelco DisplayMax Jr. 1500 Signal Level CATV Meter Jr

Fluke 572 Handheld Infrared Thermometer IR

Fluke DSP-FTA440 MM Fiber Gigabit DSP 4000 4300 FTA440

Wavetek Acterna JDSU MS1400 CATV Signal Meter MS-1400

Fluke Microtest CertiFiber Multimode Fiber Tester /Cert

TTC JDSU Acterna 2000 Test Pad TTC 2230 E1 Data T-BERD

Fluke Networks 990DSL CopperPro Tester 990 DSL

Sadelco MiniMax M800 Signal Level CATV Meter Mini Max

Fluke Networks OPV-PRO OptiView PRO Network Analyzer

Wavetek Ideal LT8600 MM Fiber Cable Tester Cat5e Cat6

Tektronix TekScope THS730A 200MHz Oscilloscope THS730

VeEX VePAL TX150 Handheld SONET Tester TX 150 TX-150

JDSU WWG ANT-20SE Advanced Network Tester SDH ANT-20

Fluke NetTool 10/100 Network Connectivity Tester

LEVITON WESTOVER 200x Fiber Optic Microscope

AFL Noyes OFI-200D Optical Fiber Identifier OFI-200 OFI

Tektronix Y350C NetTek OTDR YSU1315 SM Fiber Module VFL

Fluke Networks DSP-PCI-6S For DSP-4000 DSP-4300 DSP-PCI

Tektronix OTS9040 OC3 -48/ STM1 -16 Optical Test System

Tektronix TekScope THS720STD 100MHz Oscilloscope THS720

JDSU SmartClass Home HPNA Smart Class SC-Home-ATT1

JDSU OLP-57 Selective Optical Power Meter OLP 57 OLP57

Sunrise Telecom SunSet MTT ADSL Module SSxDSL-15 SSxDSL

Acterna 2109 Copper Analyzer Module For TestPad 2000

Acterna TTC JDSU 2000 Test Pad T-BERD 2109 TBERD TDR

Sunrise Telecom SunSet xDSL ADSL-ATU-R Module SSxDSL-3

Datacom Textron LANcat Vx 100 MHz Cat5 Certifier Tester

Agilent Wirescope PRO SM Fiber Optic SmartPobes N2647SM

GN Nettest Laser Precision LP-5025 A50 SM Loss Test Set

JDSU Acterna HST-3000C DSL Tester HST-3000 CUADSL2

Wavetek JDSU CLI-1750 Cable Leakage CATV Meter CLI1750

Fluke 63 Handheld Infrared Thermometer IR

Fluke Microtest MicroScanner Cat5 10/100 Network Teste

EXFO FOT-20A Fiber Power Meter FOT-20 FOT-22AX FOT

Fluke Networks DSP-FTK MM Fiber Kit for DSP-4000/4300

Acterna JDSU TTC FST-2000 TestPad MainFrame FST 2000

Westover FM-C400 Fiber Scope FiberScope FM C400 FMC400

Fluke DSP-FTA410 MM Fiber 4 DSP 4000 4100 4300 FTA410

AFL Noyes MLP 4-2 MM Light Pack Fiber Loss Test Set PM

Noyes AFL OFS300-200C Fiber Scope FiberScope OFS300 OFS

Agilent Wirescope 155 Cat5 Cat5e Cable Certifier Tester

TTC 2000 Test Pad 2357 DSL Broadband Services Module

Wavetek Ideal LT8155 Cable MM Fiber Certifier Cat5e LT

Fluke 196B ScopeMeter Oscilloscope Scope Meter 196

Tektronix RFM151 SignalScout Signal CATV Meter RFM 151

Fluke DSP-FTA430 SM Fiber Modules DSP 4000 4300 FTA430

AFL Noyes MM Fiber Loss Test Set OPM5 OLS1 OPM OLS

Fluke Networks OPV-GIG OptiView PRO GIGABIT OPV GIG

Agilent SM 1310nm Fiber SmartProbe 4 Wirescope 155 350

Agilent MM 850nm Fiber SmartProbe 4 Wirescope 155 350

Fluke Microtest PentaScanner with Super Injector Cat5

Fluke Networks FT354 Fiber Probe For FT330 FT350 FT400

Fluke Networks Optiview Removeable Hard Drive OPV-RHD

Fluke OPV-PRO OptiView PRO Network Analyzer Console

Noyes TURBOTEST 500 OLT-504 FC SM 1310 1550 Fiber Test

Fluke OPV-GIG OptiView PRO GIGABIT W/ Console Software

Fluke OptiView Network Inspector Software NIS-UNL

Comarco CWT X25 iDEN Cellular Network Optimization Tool

Fluke Optiview Reporter Ethernet NetworkSoftware OV-RPT

Anritsu MW910A SM Fiber OTDR MH937A MH955A MZ146A

3M Fibrlok 2670 Multi Fiber Optical Splicing System

3M Fibrlok 2601 Multi Fiber Splice Preparation Kit

FIS CMA40 OVDR MM DTF Optical Verifier 850 1300 OTDR

GN NETTEST TD-4791 Optical Spectrum Analyzer Module

Mille Luce Model M1000 Fiber Optic Illuminator

Stocker Yale Fiber Optic DualGooseneck 4 Mille Luce1000

Tektronix ORR24 GCT Module Adapters Calibration Kit

HP / Agilent 89430A RF Module Section Options AY4 AY8

Lucent Technologies Fiber Optic LC + ST II Tool Kit

Agilent Fiber Optic MM SmartProbe 4 Wirescope 155 350

Allied Amphenol Products DECA-PIERCE Tool Termination

EXFO FOMS-200x SM MM Fiber Optic Microscope FOMS200x

EXFO FLS-235B Fiber Visual Fault Locator VFL FLS 235

GN NETTEST LP-5150 MM 850/1300 Fiber Optic Light Source

Sunrise Telecom ADSL Module SSxDSL-3 SunSet MTT & xDSL

Fluke Networks Wireless Adapter OPV-WNA2 Optiview II

Applied Instruments Hecters Pup 6106 CATV Return Meter

Noyes OFL 100-HR Singlemode 850nm SM OTDR

Westover HD1 HandHeld Display 4 Video Fiber Inspection

Fluke Pentascanner Microtest Super Injector Remote

Fluke Microtest 2Way Injector Plus For PentaScanner

Agilent AuroraJazz N1737A Portable ATM Test Tablet

Agilent AuroraJazz N1737A Opt. 030 OC-3/STM-1 Module

Fluke Networks Wireless Adapter OPV-WNA Optiview I

Laser Precision LTS 4510 Loss Test Set 1300 1550 nm SM

Datacom Textron FIBERcat Kit MM for LANcat

Fluke DSP-FTA410 MM Fiber Module 4 DSP 4000 4100 4300

Agilent E7495B Basestation 10MHz - 2.7GHz

Microtest MT350 Scanner NEXT Attenuation 20MHz Tester

GN NETTEST CMA4425 OTDR Module 4 CMA4000 w/ Power Meter

Agilent HP N1610A Service Advisor Test Tablet

Fluke Networks 670 LANMETER Token Ring

EXFO FTB-300 UTS Universal Test System OTDR MainFrame

Fluke OVC OptiView Console Network Analysis 2000 nodes

Fluke Networks Spotcheck ADSL Modem Verification Unit

Fluke DPI-112 Protocol Inspector for Ethernet Networks

EXFO FTB-9100 FTB-9112 Module 4 FTB-100 FTB-300 FTB-400

Amherst Fiber Optic Hot Stripper 4 Fusion Splicing

Agilent FrameScope 802 Scope Network Analyzer AT-MX10

LeCroy AP215 Disk Drive NRZ Logic Analyzer Probe

EXFO FTB-1402 FTB-1400 4 FTB-100 FTB-200 FTB-300 FTB400

Agilent N1610A Service Advisor Tablet w/ N1660A Module

Agilent Dual DS1/0 Tester N1660A Module

Agilent AuroraJazz N1737A Opt.010 DSX-DS3/DS1 Module

IDEAL TRACETEK MM Module for LANTEK 6 & 7 Certifier

HP Agilent 1660AS 136 Channel Portable Logic Analyzer

Fluke 683 10/100 Enterprise Network LANMeter & Tester

Noyes HiLite 650nm Visual Fault Identifier VFL Hi Lite

Fluke OC3port Plus ATM Analyzer OC3-P2 OC3P2 OC3 P2

Tektronix OTS91L1 OC192/STM64 Tx/Rx Optics Optical Test

Tektronix OTS91R2 OC192/STM64 Receiver Optical Test Sys

Tektronix OTS91T2 OC192/STM64 Transmitter Optical Test

Tektronix OTS91C1 OC192/STM64 Clock Trigger Card Module