IC693MDL648
IC693MDL648
IC693MDL648
CPU主要由运算器、控制器、寄存器及实现它们之间联系的数据、控制及状态总线构成,CPU单元还包括外围芯片、总线接口及有关电路。内存主要用于存储程序及数据,是PLC不可缺少的组成单元。
在使用者看来,不必要详细分析CPU的内部电路,但对各部分的工作机制还是应有足够的理解。CPU的控制器控制CPU工作,由它读取指令、解释指令及执行令。但工作节奏由震荡信号控制。运算器用于进行数字或逻辑运算,在控制器指挥下工作。寄存器参与运算,并存储运算的中间结果,它也是在控制器指挥下工作。
CPU速度和内存容量是PLC的重要参数,它们决定着PLC的工作速度,IO数量及软件容量等,因此限制着控制规模。
I/O模块
PLC与电气回路的接口,是通过输入输出部分(I/O)完成的。I/O模块集成了PLC的I/O电路,其输入暂存器反映输入信号状态,输出点反映输出锁存器状态。输入模块将电信号变换成数字信号进入PLC系统,输出模块相反。I/O分为开关量输入(DI),开关量输出(DO),模拟量输入(AI),模拟量输出(AO)等模块。
常用的I/O分类如下:
开关量:按电压水平分,有220VAC、110VAC、24VDC,按隔离方式分,有继电器隔离和晶体管隔离。
模拟量:按信号类型分,有电流型(4-20mA,0-20mA)、电压型(0-10V,0-5V,-10-10V)等,按精度分,有12bit,14bit,16bit等。
除了上述通用IO外,还有特殊IO模块,如热电阻、热电偶、脉冲等模块。
按I/O点数确定模块规格及数量,I/O模块可多可少,但其最大数受CPU所能管理的基本配置的能力,即受最大的底板或机架槽数限制。
电源模块
PLC电源用于为PLC各模块的集成电路提供工作电源。同时,有的还为输入电路提供24V的工作电源。电源输入类型有:交流电源(220VAC或110VAC),直流电源(常用的为24VDC)。
底板或机架
大多数模块式PLC使用底板或机架,其作用是:电气上,实现各模块间的联系,使CPU能访问底板上的所有模块,机械上,实现各模块间的连接,使各模块构成一个整体。
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
