JPH10124284A - Display device for plant control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a display device for plant control system capable of performing an operating work comparable to a dedicated display device while maintaining cooperation with general purpose application. SOLUTION: A window set managing means 2 sets a master window MW and slave windows SW1, SW2 as a window set and controls plural window sets. A window set switching means 4 switches mutual superposition of plural window sets and window superposition between the window set and a general purpose window. A system message display means 5 displays message generated in a plant on the highest position of the window superposition by as a system message window SMW.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for a plant control system which is provided in a plant control system and displays a screen for operating and monitoring a plant. More specifically, the present invention relates to a display device of a plant control system improved to perform efficient operation and monitoring in a multi-window environment.

[0002]

2. Description of the Related Art Conventionally, there is a plant control system called a distributed control system for performing control operation and monitoring of a plant using a CRT display device. Such a plant control system displays various information necessary for plant control and operation on a screen of a CRT display device,
When an abnormality occurs in the plant, a warning is displayed to notify the operator of the abnormality, and the operator can perform an appropriate instruction or action for the abnormality.

[0003] As a display device of a plant control system, a CRT display device as a dedicated device for operating and monitoring a plant is provided, and an operation monitoring screen is displayed in a panel format using the entire screen of the display device. (Conventional example 1) and those that are displayed in an overlapped multi-window environment where a plurality of windows are displayed in a superimposed manner (Conventional example 2) are mainstream. In recent years, with the progress of general-purpose applications such as office applications executed on personal computers (personal computers), in the field of process control for operating and monitoring plants, confirmation of actual data, creation of daily reports, etc. It has been required to cooperate with general-purpose applications in the work. The performance data is, for example, data indicating the performance of a product in a plant, the usage of raw materials, and the like. The daily report is a report in which the production amount and the usage amount are written every day. Under these circumstances, Conventional Example 1
Then, it is difficult to display a screen displayed by a general-purpose application on a CRT display device as a dedicated device. Further, in the second conventional example, it is possible to cooperate with the general-purpose application. However, in a simple overlap type multi-window environment, many windows are displayed on the CRT screen in a random manner, so that the operation is performed immediately during the operation of the general-purpose application. Can not confirm the alarm or call up the operation monitoring window with one touch, and cannot work efficiently.

[0004]

SUMMARY OF THE INVENTION The present invention is a display device for a plant control system having the following configuration. (1) In a display device of the plant control system which is provided in the plant control system and displays a screen for performing operation and monitoring of the plant, a master window for performing main operation and monitoring and information of the master window are supplemented. Window set for managing a plurality of window sets, a switching of superposition between the plurality of window sets, and a general window displayed by the window set and the general application A window set switching means for switching the overlapping of windows between the windows; a system message display means for displaying a message generated in the plant on a system message window arranged partially on a screen; Is displayed on the message window,
A window switching interface for receiving a screen input for selecting a window and transmitting a switching request in accordance with the received screen input to the window set switching means. (2) The display device for a plant control system according to (1), wherein the system message display means displays a system message window at the top of the superposition of windows. (3) The display device of the plant control system according to (1), wherein the window set is created for each process.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a general oversight is achieved by grouping operation monitoring windows and managing a grouped window set. An object of the present invention is to realize a display device of a plant control system capable of performing an operation work like a display device of a dedicated machine while maintaining cooperation with a general-purpose application in a wrapped multi-window environment.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram showing one embodiment of the present invention.
In FIG. 1, reference numeral 1 denotes display means for displaying various screens. 2
Is a window set management unit, which manages a plurality of window sets by using a master window for performing main operations and monitoring and a slave window called to supplement information of the master window as a window set. The window set management means 2 is provided for each window set. Provided three 2 ₁ to 2 ₃ in the example of FIG. Reference numeral 3 denotes a window set memory for storing a window set. In the illustrated example, three window sets SET1 to SET3 are stored in the window set memory 3. Each window set SET1
To SET3 include a master window MW and a plurality of slave windows SW1 and SW2 (two slave windows in the illustrated example). The window set management means 2 ₁ , 2 ₂ , 2 ₃ are the window sets SET 1, SET
2 and SET3. In the master window, for example, a schematic configuration diagram of a plant is displayed, and the displayed plant indicates locations where various types of process data are taken out or given. In the slave window, for example, a message such as a trend graph of process data or an alarm is displayed.

The window set management means 2 manages a window set in charge according to the following rules. The slave window is always displayed before the master window. When the master window is destroyed, destroy the slave window. When the master window is minimized (iconified), the slave window is not displayed. When any window in the window set is activated, bring the entire window set with the activated window to the front of the multi-window. Reference numeral 4 denotes a window set switching unit that performs switching of overlapping between a plurality of window sets and switching of overlapping of windows between a window set and a general-purpose window displayed by a general-purpose application.
When the general-purpose window information is given to the display means 1, the general-purpose window is displayed. The window set switching means 4 displays the general-purpose window relatively on the front by displaying the entire window set on the back, and displays the general-purpose window relatively on the back by displaying the window set on the front. That is, the display of the general-purpose window and the window set is relatively switched by managing the window set instead of managing the general-purpose window. Reference numeral 5 denotes a system message display means for displaying a message generated in the plant on a system message window SMW arranged partially on the screen. Reference numeral 6 denotes a window switching interface, which is displayed on the system message window SMW, receives a screen input for selecting a window, and sends a switching request corresponding to the received screen input to the window set switching means 4.

In the display device shown in FIG. 1, the window set switching means 4 manages the registration status of the window sets, and passes information on the registered window sets (window set information) to the system message display means 5. Based on this, the system message display means 5
The window switching interface 6 is displayed in the system message window SMW. The window switching interface 6 is used for each registered window set SET.
Operation interfaces "WS1,""WS2," and "WS3," for calling 1, SET2, and SET3, and an operation interface "E," for calling a general-purpose window other than the operation monitoring window that does not belong to the window set.
LSE ”. When these are operated, the window switching interface 6 switches the window set switching means 4
Sends a window switching request to. As a result, the window set switching unit 4 executes an operation of calling the requested window set to the front of the multi-window or hiding the requested window set to the back. System message display means 5
Displays the system message window SMW on the display means 1
, The message such as an alarm generated in the plant is immediately displayed here. This ensures that messages are not buried behind the window. The operator recognizes from the message displayed in the system message window SMW which process in the plant has an alarm, calls the window set of the process in which the alarm has occurred, and displays the detailed message content on the slave window or the like. Check and take necessary actions. For example, when an alarm occurs in a plant corresponding to the window set SET1, the operation interface “WS1” performs blink display. The operator operates the operation interface “WS1” to call the window set SET1, and confirms the contents of the alarm on the slave window.

The operation of the apparatus shown in FIG. 1 will be described with reference to an example of a screen. 2 and 3 are views showing display examples of windows. When the operation monitoring function of the plant control system is started, the window set switching means 4 and the system message display means 5 are activated, and the system message window is displayed. When the master window is called, the called master window notifies the window set switching means 4 that it has been created. The window set switching means 4 assigns the window set management means 2 to the master window. For example assign a window set management unit 2 _1. Window set changeover means 4 notifies the assigned window set management unit 2 ₁ in the master window system message display unit 5. System message display means 5
Displays the operation interface "WS1" in the system message window SMW. Then, calling the slave window SW1, SW2, master window registers these windows in the window set management unit 2 _1. That is, the slave window is registered in the window set management unit 2 ₁ by the above master window by clicking with a mouse or the like calling the slave window. Window set management unit 2 ₁ always displayed on top of the master window slave window.
As a result, the window set shown in FIG. 2 is realized.
The window set management means 2 ₂ and 2 ₃ operate similarly.

Next, the operation of switching the window set will be described. FIG. 3 is a diagram showing an example of a screen displayed when performing a work such as daily report creation in a general-purpose window. In this state, when the operation interface “WS1” performs a blink display and an alarm is displayed in the system message window, the operator operates the operation interface “WS1”.
The window set SET1 is called by operating, and the state shifts to the state shown in FIG. 2 to confirm an alarm and perform an operation. In the example of FIG. 2, detailed contents such as an alarm are displayed in the slave window SW1. After the treatment, the operation interface “ELSE” is operated to return to the screen of FIG. 3 again, and the interrupted work is resumed.

The title bar of the master window MW is provided with a maximize button B1 and a minimize button B2, which can be maximized and minimized in the same manner as a window operation under a general overlap type multi-window environment. The slave window has no maximize button or minimize button, and always depends on the state of the master window. For example, when the master window is minimized, the window set management means 2
Function does not display the slave window. When the master window is returned to the original size, the slave window is returned together. When the master window is maximized, the display state of the slave window is not affected. 2 and 3 show the case where there is one window set, but the basic operation is the same when there are a plurality of window sets.

[0012]

According to the present invention, the following effects can be obtained. Windows for operation monitoring are grouped, the grouped window sets are managed, and the display of the window sets and general-purpose windows is controlled under this management. As a result, it is possible to perform an operation work like a display device of a special-purpose machine while maintaining cooperation with a general-purpose application under a general overlap type multi-window environment. Keep the system message window always on top. This prevents the system message window from hiding behind other windows in a multi-window environment and overlooking the message that occurred at the plant. Since a window set is created and managed for each process, monitoring can be easily switched for each process.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of the present invention.

FIG. 2 is a diagram showing an example of a display screen of the apparatus of FIG.

FIG. 3 is a diagram showing an example of a display screen of the apparatus of FIG. 1;

[Explanation of symbols]

1 the display means 2, 2 _{1 ~} 2 window set management unit 4 window set switching means 5 system message display means 6 window switching interface

Claims (3)

[Claims] 1. A display device for a plant control system, which is provided in a plant control system and displays a screen for operating and monitoring a plant, wherein a master window for performing main operations and monitoring and information of the master window are displayed. A window set is a window set in which a slave window called for complementation is used, and a window set management unit that manages a plurality of window sets, switching of overlapping between the plurality of window sets, and display by a window set and a general application Window set switching means for switching the overlapping of windows between general-purpose windows; system message display means for displaying a message generated in the plant on a system message window arranged partially on a screen; A window switching interface that is displayed on a stem message window, receives a screen input for selecting a window, and sends a switching request in accordance with the received screen input to the window set switching unit. Display device of the system. 2. The display device for a plant control system according to claim 1, wherein said system message display means displays a system message window at the top of the superposition of windows. 3. The display device of the plant control system according to claim 1, wherein the window set is created for each process.