Path scheduling method and system for rolling mills

A tandem rolling mill (FM) has mill stands (Fi; i=1 to 7) to be controlled in conformity with given rolling conditions (j) to execute a given path schedule for a coil (1) to be rolled by rolls (WR) of the mill stands (Fi) to scheduled thicknesses (hi) at exit sides of the mill stands (Fi), with scheduled peripheral speeds (Vi) of the rolls (WR). The mill stands (Fi) are checked for non-conformity with any rolling condition (j), correction amounts (DELTAgammai) are calculated of normalized values (gammai*) of rolling forces (Pi*) of non-conforming mill stands (Fi*), as necessary to meet any rolling condition (j*), the normalized values (gammai*) are corrected by a maximal one of the correction amounts (DELTAgammai) to provide corrected values as targets (gammati*) to be achieved at the non-conforming stands (Fi*), and the given path schedule is re-scheduled to achieve the targets (gammati*) by determining re-scheduled thicknesses (hi) of the coil (1) and re-scheduled peripheral speeds (Vi) of the rolls (WR), both independently defining a mass flow of the coil (1) to be constant at the respective mill stands (Fi).