00452nam a2200133   450000500170000008200080001710000120002524501020003726000610013930000270020050400250022765000350025270000310028720260414052442.0  bVIS  aVishno.  aRole of PLCs in industrial automation : simatic ti 500/ series as an example /cVishno...[et.al.]  aMUET, Jamshoro :bElectronics Engineering, IICT, c1995.  a139p. :bill. ; 30 cm.  aIncludes References.  aElectronics Engineering, IICT.  aChaudhry, Bhawani Shankar.