ontrollerCynthiaCooperFromWikipedia,puterusedforautomationofindustrialprocesses,-puters,thePLCisdesignedformultipleinputsandoutputarrangements,extendedtemperatureranges,immunitytoelectricalnoise,-backedornon-,(greyelementsinthecenter).Theunitconsistsofseparateelements,fromlefttoright;powersupply,controller,(dust,moisture,heat,cold,etc)andhavethefacilityforextensiveinput/output(I/O),analogprocessvariables(suchastemperatureandpressure),,PLCsoperateelectricmotors,ylinders,icrelaysorsolenoids,,orthePLCmayhaveexternalI/,camtimers,,,wheresoftwarerevisionreplacedthere-wiringofhard-,basedonastack-,motion
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