salam dost aziz
man takhasoosi dar mored plc siemens nadaram vali ba tavajo be plc hai digeh hamchon allen-bradley va omron ke ma takonon kar kardeham, mitonam begham ke tagriban hamegiy az ya system etesal estefadeh mikonan.
chizi ke dar mored hamkhoni bein plc va sensor mohem hast "sinking" va "sourcing" bodan moudle plc va sensor motasel be an mibashad