Patent ID: 8943430
Filing Date: 2015-01-27
Classification: G05B,G06F

Abstract:
1. A central processing unit having a user interface, UI, for a process control system, the UI being configured to be displayed on an electronic visual display unit connectable to the process control system, the UI comprising: a plurality of sub-UIs, each sub-UI being adapted to visually indicate at least a part of a process controlled by the process control system; and a selection sub-UI, different from each of said plurality of sub-UIs, configured to enable a user to selectively display at least one of the plurality of sub-UIs on the display unit, the selection sub-UI comprising a plurality of visual representations, each of the plurality of visual representations corresponding to one of the plurality of sub-UIs; the UI being configured to enable a user to selectively activate and deactivate the selection sub-UI by providing user input to the UI, wherein the selection sub-UI, when activated, is adapted to be at least momentarily displayed on the display unit at least partly superimposed on at least one of the plurality of sub-UIs; the selection sub-UI being adapted to: wherein the process control system is adapted to determine a hierarchy of the at least a part of a process visually indicated in each of the plurality of sub-UIs, relatively to the respective at least a part of a process visually indicated in the other sub-UIs of the plurality of sub-UIs, in the process controlled by the process control system, the selection sub-UI being adapted to: wherein the selection sub-UI is adapted to, in response to being at least momentarily displayed on the display unit, display the plurality of visual representations on the display unit such that the plurality of visual representations are arranged in a tree structure when displayed on the display unit.