JP2007272382A - Process control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently perform operation control or monitor by outputting a target picture through little operation and eliminating erroneous operation. <P>SOLUTION: This process control system is provided with a terminal information management table for managing the information of each terminal equipment, determines the type and hierarchical structure of a picture which can be selectively displayed, displays only the minimum necessary picture, and can display a picture which is present in a deep hierarchy through simple operation. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a process control system that involves screen switching of each terminal when performing operation control or monitoring for each facility in a large-scale plant, for example.

In Patent Document 1, for example, in a process control system that performs operation control or monitoring for each facility in a large-scale plant, a touch panel on a CRT screen is provided, and the screen development is made into a hierarchical structure by adopting a hierarchical structure. It describes that the screen can be freely expanded so as to be able to quickly respond to the ever-changing plant situation.
As described above, the terminals used in the plant usually have the same screen type and hierarchical structure, and are normally switched and used.

  However, when looking at specific equipment in the plant, it is often only necessary to monitor and operate several types of screens. Especially for operators who are familiar with the equipment, the screen to be selected is specified according to the operation status, and it takes many steps to switch the screen by following several levels, which takes time and is complicated. As well as becoming misunderstanding, it is easy for misoperation.

In some cases, a certain terminal requires start / stop button operations and data input, and other terminals do not require any operation only for monitoring. If there is a button or input area on a terminal that does not require operation, there is a possibility that unnecessary operation or data input may be performed due to an erroneous operation.
However, program modification is required to change the screen hierarchy range and screen information range to be selectively displayed for each terminal.
JP-A-6-236169

  The present invention makes it possible to determine the types and levels of screens that can be selected and displayed by referring to the information for each terminal in the management table, so that the target screen can be displayed with fewer operations, eliminates erroneous operations, and reduces The object is to realize a process control system capable of performing operation control and monitoring of a target facility with effort.

  The present invention has a terminal information management table for managing information of each terminal installed for each plant facility, and based on the identification information of each terminal, the terminal information management table for each terminal Referring to the function to select and display only the minimum necessary screens and the identification information of each terminal, only the minimum necessary information on the screen to be displayed is determined. A function to display, a function to display a screen in a deep hierarchy on each terminal by a simple screen operation, and a plurality of simple operation screens for a plurality of operators who perform shift work in the plant equipment are prepared. A process control system comprising a function for switching and using the screen, and preferably changing the terminal information management table to change the image of each terminal. Which is the process control system characterized by changing the basic functions.

  According to the present invention, even an operator who is not skilled in equipment can easily and quickly display a desired screen on the terminal, eliminating unnecessary operations by hiding unnecessary buttons and data input items, It is possible to perform quick operation actions. Also, by changing the terminal information management table, it is possible to change the basic functions of each terminal without modifying the program, so that it is possible to improve the efficiency of the plant process control system. .

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram of a process control system according to an embodiment. Reference numeral 1 denotes a computer main body (server) that controls a large-scale plant, and reference numerals 2a to 2e denote terminals arranged for each facility A to E in the plant. . The computer main body 1 and the terminals 2a to 2e are connected by a network. In FIG. 1 (the same applies to FIGS. 2 and 3), a solid line indicates a wiring cable and a broken line indicates a flow of information.

  The computer main body 1 has a terminal information management table for managing information of each of the terminals 2a to 2e. An example of the configuration of the terminal information management table is shown in Table 1, and an example of the terminal information management table itself is shown in Table 2.

The computer main body 1 has a screen control task common to each terminal, and also has a database for storing plant information.
On the other hand, each terminal 2a to 2e has identification information unique to each terminal, and when the power is turned on, the screen control task common to each terminal is downloaded from the computer main body 1 as shown by the broken line in FIG. The screen control task is activated.

  This screen control task has a function of referring to the terminal information management table held by the computer main body 1 as shown by the broken line in FIG. Then, a screen hierarchy range and a screen information display range are selected according to the information in the referenced terminal information management table, and buttons and input / output items for acquiring and displaying necessary data from the computer main body 1 as shown by the broken lines in FIG. Is selected and displayed on the screen. The screen control task downloaded to each terminal is the same program, and it is not necessary to manage the program for each screen.

FIG. 4 shows an example of the hierarchy of the entire screen, and FIG. 5 shows a part surrounded by a broken line indicated by reference character C.
In the example of Table 2, in the case of the terminal 2c whose terminal name is “BF04”, the screen hierarchy information is “Guide 4-2”, and the screen control task has the code C in the entire hierarchy shown in FIG. Only the portion surrounded by the broken line is selected so as to be displayed as shown in FIG. Similarly, in Table 2, since the display constraints other than “print button” are not displayable, the original screen without display constraints is as shown in FIG. 7, but this is used as shown in FIG. 8 to prevent erroneous operations. ing. In this example, the display restriction is common to all screens below the selected hierarchy, but display restrictions can be made for each screen.

  The screen control task has a one-touch screen. In the terminal information management table shown in Table 2, when a one-touch button is pressed on a screen on which “one touch” can be displayed as a display constraint, for example, the screen as shown in FIG. 7, the one-touch screen as shown in FIG. Is activated. When the “Register” button on the activated one-touch screen is pressed and then the upper left button is pressed, for example, the caller's screen, that is, the screen of FIG. 7 in this example can be registered. When the upper left button is pressed without pressing the registration button, the already registered “motor temperature monitoring screen” is displayed.

The one-touch screen has a display switching function for a plurality of screens, and also has a function for screen registration and deletion.
Also, radio buttons are prepared at the upper left of the one-touch screen, and if there are five radio buttons, five one-touch screens can be selected. In the example of FIG. 6, there are five radio buttons, and the one-touch screen 1 is selected.

The one-touch screen can be changed by selecting a radio button. An example of the switched one-touch screen is shown in FIG. This time, the one-touch screen 2 is selected.
For example, if the operator determines the one-touch screen to be used for each shift work, such as the one-touch screen 1 for the group A and the one-touch screen 2 for the group B, each operator can use it as their own dedicated screen. . A one-touch screen can be registered or deleted according to the preference of each operator.

  The terminal information management table can be modified on the maintenance screen, and the terminal information management table can be freely modified at the permitted terminal.

1 is an overall configuration diagram of a process control system in an embodiment of the present invention. 1 is an overall configuration diagram of a process control system according to an embodiment of the present invention. FIG. 1 is an overall configuration diagram of a process control system according to an embodiment of the present invention. FIG. It is a block diagram which shows the example of the hierarchy of the whole screen in an Example. It is a partial block diagram which shows the part of the code | symbol C of FIG. It is explanatory drawing which shows the example of the one-touch screen of an Example. It is explanatory drawing which shows the example of the display screen of an Example. It is explanatory drawing which similarly shows the example of the display screen of an Example. It is explanatory drawing which shows the example of the other one touch screen of an Example.

Explanation of symbols

1 Computer body 2a-2e Terminal

Claims (2)

It has a terminal information management table that manages information of each terminal installed for each plant equipment,
Based on the identification information of each terminal, refer to the terminal information management table of each terminal, determine the type and hierarchy of screens that can be selectively displayed, and select and display only the minimum necessary screens; , The function of displaying only the minimum necessary information on the screen to be displayed according to the identification information of each terminal,
A function for displaying a screen in a deep hierarchy with a simple screen operation on each terminal;
A process control system comprising a function of preparing a plurality of simple operation screens for a plurality of operators performing shift work in the plant equipment and switching and using the screens.   The process control system according to claim 1, wherein a basic function of a screen of each terminal is changed by changing the terminal information management table.

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