Abstract: To lead anode plate thickness uniformity, we proposed the dynamic lost heavy method realization lead anode plate casting method. It increased the precision of casting the lead anode plate. This paper introduced the casting technical process of the lead anode plate and used PROFIBUS-DP technology, as main control station comes the structure casting control system take SIMATIC S7-300 PLC, elaborated MCGS monitoring configuratio n software completes the system monitoring contact surface to design and uses STEP 7 to carry on the PLC control procedure design the method.