4、dingmachine,usePLCtocontrolthe electricalcontrolpart carriesonthetransformationtotheM7120surfacegrindingmachine. Inorderto knowandtransformthe electricalcontrol system ofM7120surfacegrindingmachine moreclearly soasto solvetheexisting traditional relaycontactor electriccon
5、trolsystemof complexcircuit,faultdiagnosis and exclusionof problem difficulty. The reliabilityofPLC high,extremelyrichsetofinstructions, easycontrol, convenientoperation, integratedfunction, achieverich characteristics, therefore, that theM7120surfacegrindingmachinetocomp