Abstract: Apparatus and method for controlling and/or monitoring a technical installation for producing and/or processing metal, having an assistant program with at least one interface for connection to application programs, wherein the assistant program receives a request for an item of information relating to the installation from at least one requesting application program via the interface, wherein the assistant program can access a data model that provides a suggestion of which information can be provided by at least one further application program.

Abstract: Prior to the rolling of a flat rolling material (2) on a rolling line that includes a number of roll stands (1), a control system (3) receives actual variables (I) and target variables (Z) of the material (2). The control system (3) determines desired values (S*) for the roll stands (1), based on the actual (I) and target variables (Z) in combination with a model (10) of the rolling line, such that expected variables (E1) of the material (2) after its rolling are aligned as far as possible with the target variables (Z) and transfers the desired values (S*) to the roll stands (1) such that the material (2) is rolled according to the desired values (S*). The target variables (Z) comprise at least one freely selectable, discrete characteristic variable (K1 to K5, K2? to K4?, K2? to K4?) defining the contour (K) of the flat rolling material (2).

Abstract: A model (8) is based on mathematical-physical equations. The model models the production of a particular output product (1) from at least one input product (2) supplied in each case to an installation in the raw materials industry on the basis of operation (B) of the installation. During production of the output products (1), the installation is controlled by a control device (5) in such a manner that particular actual operation (B) of the installation corresponds as far as possible to particular desired operation (B*) of the installation. The desired operation (B*) is determined by the control device (5) using the model (8) of the installation. The model (8) is parameterized according to a number of first model parameters (P1) for the purpose of modelling the installation.

Abstract: A metal strip is rolled in a roll stand and a control device for the roll stand determines, by means of a working cycle, a number of manipulated variables for flatness actuators of the roll stand and actuates them accordingly. The control device implements an optimizer, which provisionally sets the current correction values, and determines a totality of flatness values. Then, the optimizer minimizes the relationship by varying the current correction variables. When determining the current correction variables (s), the optimizer considers linear ancillary conditions, based at least in part on a vector having the ancillary conditions upheld by the current correction values and a vector having the ancillary conditions upheld by the difference of the current correction values relative to the correction values of the preceding working cycle. The control device determines the manipulated variables for the flatness actuators in consideration of the determined current correction variables.

Abstract: Pickling a plurality of steel strips (2) having initial material properties (ME) on a pickling line: A computer (5) defines a number of sequences (Gi), which each contain the number of strips (2) to be pickled. For each of the defined sequences (Gi), the computer (5) determines an optimized mode of operation of the pickling line and, on the basis of the mode of operation, at least one measure (M), by means of a model (9) of the pickling line based on mathematical physical equations and by using the initial material properties (ME) of the strips. As long as a termination criterion (K) is not met, the computer (5) varies the defined sequences (Gi) and determines respective optimized modes of operation of the pickling line and associated measures (M) anew.

Abstract: A rolling line for rolling a flat rolling material (2) includes a number of roll stands (1). Prior to the rolling, a control system (3) receives actual variables (I) of the material (2) before the rolling and target variables (Z) after the rolling. The control system (3) determines desired control variables (S*) for the roll stands (1), based on the actual (I) and target variables (Z), in combination with a description (B) of the rolling line, using a model (10) of the rolling line. The control system (3) determines the desired values (S*) such that expected variables (E1) for the material (2) after its rolling are aligned as far as possible with the target variables (Z). The control system (3) transfers the desired values (S*) to the roll stands (1) such that the material (2) is rolled according to the transferred desired values (S*).

Abstract: A roll stand (1) having at least one pair of rollers (4, 5) between which a flat rolled product (2) is located. The rollers (4, 5) can be moved axially in opposite directions. The roll stand (1) has a bending system (6) for the rollers (4, 5). A controller (8) of the roll stand (1) uses the bending and the axial movement of the rollers (4, 5) in order to regulate the roll gap contour as an adjustment mechanism. Prior to rolling a respective rolled product (2), the controller determines a respective axial position (x) as the resulting axial position (x) and sets the axial position as the axial position (x) of the rollers (4, 5) for the roll stand (1) in order to roll the next flat rolled product (2).

Abstract: A metal strip is rolled in a roll stand and a control device for the roll stand determines, by means of a working cycle, a number of manipulated variables for flatness actuators of the roll stand and actuates them accordingly. The control device implements an optimizer, which provisionally sets the current correction values, and determines a totality of flatness values. Then, the optimizer minimizes the relationship by varying the current correction variables. When determining the current correction variables (s), the optimizer considers linear ancillary conditions, based at least in part on a vector having the ancillary conditions upheld by the current correction values and a vector having the ancillary conditions upheld by the difference of the current correction values relative to the correction values of the preceding working cycle. The control device determines the manipulated variables for the flatness actuators in consideration of the determined current correction variables.

Abstract: A model (8) is based on mathematical-physical equations. The model models the production of a particular output product (1) from at least one input product (2) supplied in each case to an installation in the raw materials industry on the basis of operation (B) of the installation. During production of the output products (1), the installation is controlled by a control device (5) in such a manner that particular actual operation (B) of the installation corresponds as far as possible to particular desired operation (B*) of the installation. The desired operation (B*) is determined by the control device (5) using the model (8) of the installation. The model (8) is parameterized according to a number of first model parameters (P1) for the purpose of modelling the installation.

Abstract: Pickling a plurality of steel strips (2) having initial material properties (ME) on a pickling line: A computer (5) defines a number of sequences (Gi), which each contain the number of strips (2) to be pickled. For each of the defined sequences (Gi), the computer (5) determines an optimized mode of operation of the pickling line and, on the basis of the mode of operation, at least one measure (M), by means of a model (9) of the pickling line based on mathematical physical equations and by using the initial material properties (ME) of the strips. As long as a termination criterion (K) is not met, the computer (5) varies the defined sequences (Gi) and determines respective optimized modes of operation of the pickling line and associated measures (M) anew.