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1、购买设计文档后加Q-97666224免费领取CAD图纸YNLprefabricationtriggerelectriccontrolsystemdesignPLCisonekindspeciallyforthedigitaloperationoperationelectronicinstallationwhichappliesundertheindustryenvironmentdesigns.Itusesmaythecodingmemory,usesforinitsinternalmemoryoperationandsoon
2、actuatinglogicoperation,sequenceoperation,time,countingandarithmeticoperationinstructions,andcanthroughdigitalorthesimulation-likeinputandtheoutput,controlseachtypethemachineryortheproductionprocess.PLCandtherelatedauxiliaryequipmentshouldaccordingtoformawholeeasywi
3、ththeindustrialcontrolsystem,easytoexpanditsfunctiontheprincipletodesign.”Inthe1970sthelaststage,theprogrammablecontrollerenteredthepracticalapplicationdevelopmentphase,thecomputertechnologyhasintroducedincomprehensivelytheprogrammablecontroller,causesitsfunctiontoh
4、avetheleap.Thehigheroperatingspeed,thesubminiaturevolume,themorereliableindustryantijammingdesign,thesimulationquantityoperation,thePIDfunctionandtheextremelyhighperformance-to-priceratiohasestablisheditinthemodernindustrystatus.Intheearly-1980s,theprogrammablecontr
5、ollerhasobtainedthewidespreadapplicationintheadvancedindustrialnation.Thistimeprogrammablecontrollerdevelopsthecharacteristicislarge-scale,thehighvelocity,thehighperformance,theproductseriation.Thisstage'sanothercharacteristicisintheworldproducestheprogrammablecontr
6、oller'scountrytoincreasedaybyday,theoutputrisesdaybyday.Thissymbolizesthattheprogrammablecontrollermarchedintothematurestage.The20thcenturylaststage,theprogrammablecontroller'sdevelopmentcharacteristicwasevenmoreadaptsinthemodernindustryneed.Fromthecontrolscale,this
7、timehasdevelopedthelarge-scalemachineryandsubminiaturemachine;Fromthecontrol,wasbornvariousspecialfunctionunit,usedinthepressure,thetemperature,therotationalspeed,thedisplacementandsoonallkindsofcontrolsituation;Fromproductnecessaryability,hasproducedeachkindofman-m
8、achinecontactsurfaceunit,thecorrespondenceunit,causedtoapplytheprogrammablecontroller'sindustrialcontrolequipmentnecessarytobeeasier.Atpre
