Abstract: This paper introduces an overall structural design of electrical slab continuous casting machine control system,and forms the three-level Distributed Control System(DCS).Configuration on the PLC system is introduced.Designed control system has been successfully applied to the 3rd slab continuous casting machine works in  BaYi Iron and Steel Plant.The application results show that electrical control system is stable and reliable,production efficiency is greatly increased,and energy consumption is significantly reduced.

Key words: slab caster, electrical control, distributed control system, program design