초록 ▼

A plant monitoring system having a memory unit for storing process variables and relationship data between main monitor screens and sub-monitor screens, a display unit including a main display area, an auxiliary display area, a main monitor screen selection area, a sub-monitor screen selection area

A plant monitoring system having a memory unit for storing process variables and relationship data between main monitor screens and sub-monitor screens, a display unit including a main display area, an auxiliary display area, a main monitor screen selection area, a sub-monitor screen selection area and an alarm occurrence display area, and a control unit for controlling the whole system. By requesting from the main monitor screen selection area, a main monitor screen is usually displayed in the main display area, and one of the related sub-monitor screens is displayed in the sub-monitor screen area upon an operator\s request from the already displayed sub-monitor screen selection area. When an alarm occurs, an alarm screen is displayed in the main displayed area.

대표청구항 ▼

A plant monitoring system comprising: storage means for storing predetermined pictorial data of a display screen, process variables obtained from a plant to be controlled at every control cycle, data concerning a relationship between main monitor screens which display schematic information necessary

A plant monitoring system comprising: storage means for storing predetermined pictorial data of a display screen, process variables obtained from a plant to be controlled at every control cycle, data concerning a relationship between main monitor screens which display schematic information necessary for monitoring said plant and sub-monitor screens which display detailed contents of said main monitor screens and said pictorial data for selecting an operation requirement; input means for inputting operator\s requests including a request for changing display contents displayed on said display screen; display means having said display screen including: (a) a main display area for usually displaying one of a plurality of pictorial images of said main monitor screens and for displaying related ones of said sub-monitor screens in response to said operator\s requests and for displaying an alarm screen when an alarm occurs; (b) an auxiliary display area for displaying a pictorial image which has been displayed on said main display area up to now in response to said operator\s request for changing display contents in said main display area or in response to occurrence of said alarm; (c) a main monitor screen selection area for displaying a command for selecting a main monitor screen relating to an item to be monitored which has been displayed on said main display area; (d) a sub-monitor screen selection area for displaying labels for selecting one of said sub-monitor screens having a relation to a monitor screen which has been displayed on said main display area; (e) an alarm occurrence display area for displaying a command for alarm processing; and controlling means for receiving said process variables and storing said process variables in said storage means, interpreting received commands inputted from said input means and allocating information read out from said storage means with necessary alarm information on said main and sub-monitor screens of said display means.