Abstract: An evaluation device that determines, based on data acquired by an acquisition device, an error value (PF) relating to the flatness of a strip of a rolling material exiting a roll stand, and supplies the determined error values (PF) to a control device, which takes the error values (PF) into account when determining adjustment variables(S) for flatness control elements of the roll stand. The interaction of the acquisition device, the evaluation device, the control device and the roll stand results in a closed control loop working in real time. In order to determine the particular error value (PF) of the strip, the evaluation device performs a local frequency analysis of the data and determines the particular error value (PF) on the basis of the local frequency analysis.

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: A control device (3b) for a roll stand (1). During rolling of a metal strip (2) in the roll stand (1), the device receives measurement data (M) for a lateral position (y) of the metal strip (2) on the inlet side and/or outlet side of the roll stand (1). Taking into account parameters (P) of the stand regulator (3a) on the basis of the deviation in the lateral position (y) from a target position (y*), a stand regulator (3a) of the control device (3b) determines a tilt value (?s) for the roll stand (1) and controls the roll stand (1) accordingly. The control device (3b) determines at least one variable (V1, V2, Q1, Q2) from which it is derived, for both strip edges (7, 8) of the metal strip (2), whether the metal strip (2) forms an undulation (9) in the region of the particular strip edge (7, 8).