JPH01263702A - Process computer system equipped with picture display device - Google Patents

Abstract

PURPOSE:To rapidly grasp a meter number with an operator at the time of the abnormality generation of a plant by providing a means to display respective meter numbers corresponding to respective process data on a plant system picture. CONSTITUTION:When an operator turns on a meter number display switch 5a of a keyboard 5, interruption is applied to the display processing of a picture generating means 4f. Thus, the generating means 4f sets a flag to show a meter number display request, and thereafter, adds the information of the meter number and the meter number display position to the display picture data based on the inherent picture variable part data of the meter number so as to overwrite with trailer priority. The display picture data prepared thus are outputted to a CRT monitor 6 and respective meter numbers are picture-displayed.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a process computer equipped with a screen display device that inputs process data from each device in a plant and displays the plant status on the screen. Regarding the system.

(Prior Art) A conventional example of a system configuration of a process computer system in an industrial plant is shown in FIG.

In the figure, each device in the plant to be monitored includes a digital sensor 1, which is an instrument that detects the status of each device,
Alternatively, an analog sensor 2 is provided. The process input/output device 3 inputs process data P detected by each of these sensors and outputs it to the process computer 4.

The keyboard 5 is used by an operator to select a desired screen to be displayed by pressing a display screen selection switch corresponding to each display screen.

The CRT monitor 6 displays the screen specified by the above selection.

In the process computer 4, the input operation means 4a inputs the process data P from the process input/output device 3 at a fixed time period, and the operation data update buffer 4b
The 0-screen fixed data memory 4c, which temporarily stores the process data P, stores in advance screen fixed part data FIX for fixed display on various display screens. The screen variable data memory 4d stores the screen variable part data DPL in advance. The screen variable part data DPL indicates the process data P required for each display screen by input point number IID in order to display the plant status, and also indicates the data and patterns to be displayed according to the process data P, and the screen. This is information indicating the display coordinates, etc. above.

The screen selection information input means 4e is a screen creation means 4f for inputting screen selection information DS from the keyboard 5.
is for creating predetermined display screen information based on various information, and the screen display means 4g is for displaying the created display screen information on the CRT monitor 6.

With this configuration, when performing screen display, the operator must:

As shown in FIG. 8, a desired screen is selected using the keyboard 5 (process 101).
The screen selection information S is outputted from and the one-screen creation means 4f,
Read that S via the screen selection information input means 4e (
Process 102).

Next, the screen fixed part data FIX corresponding to the S is read out from the screen fixed data memory 4c (processing 10).
2) Read the screen variable part data DPL from the screen variable data memory 4d (process 104).

The screen creation means 4f then uses the screen fixed part data FIX.
Based on this, a fixed screen portion is displayed on the CRT monitor 6 (processing 105). Next, according to the screen variable part data DPL, the process data P is transferred from the operation data update buffer 4b.
106), and displays predetermined data and patterns on the CRT monitor 6 as a screen variable portion according to the process data P (process 1o7).

FIG. 9 shows an example of the screen display at this time, so symbol 201 is the reactor pressure vessel, symbols 202 to 20
6 indicates various valves, and symbols 207 to 210 indicate pumps. The color of the symbol of each pump is changed to indicate its operating status, while the output status of each pump is displayed as a percentage above the symbol. Further, above the symbols of other valves and pumps, the name and identification number of the valve are displayed as necessary. Also.

Inside the symbol 201, the furnace pressure is indicated numerically, and
The reactor water level is displayed numerically and as a bar graph.

Thereafter, after a certain period of time (process 108), the process returns to the process data P reading operation (proceed to process 106).

As a result, the screen display is updated at regular intervals. Note that the above processes 102 to 108 are executed by the screen creation means 4f.

The operator monitors the plant while looking at this screen display.

(Problem to be Solved by the Invention) By the way, in such a plant, generally, the digital sensor 1 or the analog sensor 2 corresponding to each device is
is assigned an instrument number, and each device is managed by this instrument number.

When an abnormal condition is discovered in the plant, the operator determines the instrument number and investigates the specifications of the corresponding equipment, and if necessary, visits the installation site to check the equipment.

Therefore, the operator must determine the instrument number when the displayed content indicates an abnormal value or an abnormal state on the screen.

In this case, the operator first checks the corresponding input point number from the system specifications, etc. that describe the contents of the screen variable part data DPL for each screen, and then checks the computer single line diagram and computer input/output points. - The instrument number corresponding to the input point number was checked using the list.

For this reason, in the past, it took time and effort to determine the instrument number, and when an abnormality occurred in the plant, it was inconvenient that prompt and accurate responses could not be taken.

As a countermeasure in this case, it is conceivable to always display the instrument number on the display screen. However, in that case,
In normal conditions, the instrument number is not necessary, and the instrument number information has a relatively large number of characters.

Problems arise in that there is insufficient screen area to display other important process conditions, the display becomes difficult to see, and it becomes difficult to grasp the plant condition.

On the other hand, in old systems before CRT monitors were used as display devices, indicators were used that corresponded 1:1 to each device. In this case, each indicator independently displayed the status of each device, and the corresponding instrument number was recorded in advance on the nameplate of each indicator, making it easy to judge. However, in this case, unlike a CRT monitor, the plant system is not displayed in a consolidated manner, so there is a problem in that it is difficult for the operator to grasp the plant status.

The present invention solves the above-mentioned problems and enables operators to easily grasp the plant status and take quick and accurate responses.
An object of the present invention is to provide a process computer system equipped with a display device.

[Configuration of the Invention (Means for Solving the Problems) To this end, the present invention provides a console for performing various operations.
In addition to a screen selection operation section for selecting the plant system screen to be displayed, there is also an instrument number display request operation section for requesting instrument number display, and according to the operation of the screen selection operation section, the plant status can be displayed on the screen as before. On the other hand, when an instrument number display request is made by the instrument number display request operation section, each instrument number corresponding to each of the process data is displayed on the plant system screen.

(Function) As a result, the plant system is normally displayed in a consolidated manner on the same display screen as before by operating the screen selection operation section, making it easier for the operator to grasp the plant status and Only when necessary, such as when an abnormality occurs,
Since the instrument number can be displayed using the instrument number display request operation section, it is no longer time-consuming and time-consuming to determine the instrument number, allowing quick and accurate response in the event of an abnormality in the plant. Become.

(Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a block diagram of a process computer system according to an embodiment of the present invention. In the figure, the same reference numerals as in FIG. 7 indicate the same parts, and the difference from FIG.
h and an instrument number succession means 41, and the screen creation means 4f is provided with an instrument number display control function.

As shown in FIG. 2, the keyboard 5 includes, in addition to a display screen selection switch group 5b for selecting a screen, alphabet keys 5c, a numeric keypad 5d, keys 5e for performing screen operations and startup requests, and function keys for instructing specific functions. 5f, and one of the function keys 5f is set to the instrument number display switch 5a.

In addition, the instrument number table 4h is as shown in FIG.
Each instrument number DTAG corresponding to each input point number IID in the plant is stored.

FIG. 4 shows a flowchart of the screen display operation, and the same reference numerals as in FIG. 8 indicate the same processes. When a display screen is selected by the operator's operation of the display screen selection switch group 5b of the keyboard 5 (process 101), the fixed part of the screen is first displayed (processes 102 to 105), as in the case of FIG. ).

By the way, a flag F is provided to indicate the presence or absence of a request to display an instrument number, and this flag F changes to 21'' when an instrument number display request is made by operating the instrument number display switch 5a of the keyboard 5. 20” when released.
are set respectively.

After the screen fixed part is displayed, the flag F is checked (processing 109), and when the flag F is 7101+ (processing 1
09N), as in the case of Fig. 8, the process data P
is read out, a predetermined screen variable section is displayed according to the data, and the process is repeated at regular intervals (processes 106 to 106).
108). As a result, a screen display similar to that shown in FIG. 9 is displayed on the CRT monitor 6, and the operator can use the display to
Plant monitoring.

Next, when the operator needs to judge the instrument number, such as when an abnormality occurs, the operator turns on the instrument number display switch 5a of the keyboard 5. When the instrument number display switch 5a is operated (process 110), an instrument number display request signal RTAG is output from the keyboard 5, and the above display processing of the screen creation means 4f is interrupted. As a result, the screen creation means 4f sets the flag F indicating the instrument number display request to "
1'' (processing 111), and displaying the screen fixed part according to the screen fixed part data FIX being used at that time (processing 105).

Next, the above-mentioned process 109) checks the flag F, and if the flag F is "1" (Y in process 109), the above-mentioned process 1
While reading the process data P in the same way as 06 (processing 1
12). Also, the screen variable part data D being used at that time.
Notify the instrument number reading means 41 of PL.

The instrument number succession means 41 identifies the display position of each process data P and the display position of various symbols on the screen from the screen variable part data DPL. Then, the instrument number display position corresponding to the upper part of each display position is determined (processing 1
13). Further, each IID is identified from the screen variable part data DPL, and the instrument number DTAG corresponding to each IID is read from the instrument number table 4h (processing 114).

Next, the screen creation means 4f inputs the instrument number DTAG and the information of the instrument number display position, and in order to display each instrument number at each display position on the screen,
The instrument number DTAG and information on the instrument number display position are added to the display screen data based on the original screen variable part data DPL so as to be overwritten with postscript priority (processing 115).

The display screen data thus created is output to the CRT monitor 6, and each instrument number is displayed on the screen.

FIG. 5 shows an example of a screen display when the above-mentioned instrument number display request is made while the screen display shown in FIG. 9 is being executed. In the figure, above the screen of symbols 202 to 208, corresponding instrument numbers 211 to 217 are displayed, and in symbols 209 and 210, instrument numbers 218 and 21 are similarly displayed above the percentage display of each output.
9 is displayed. Furthermore, within the symbol 201, an instrument number 220 of a sensor that detects the reactor pressure and an instrument number 221 of a sensor that detects the reactor water level are displayed.

In this way, the instrument number is overwritten on the screen shown in FIG. 9 with priority given to later writing, and at this time, answers, pump names, identification numbers, etc. that do not need to be viewed are erased.

After this, the same display process is repeated at regular intervals (
(from process 117 to process 112), the screen display is updated at regular intervals.

When returning to the normal display, the operator turns off the instrument number display switch 5a of the keyboard 5. When the instrument number display switch 5a is turned off (process 110), the plug F is set to "0" (process 111), and the screen fixed part is displayed again in the same manner as described above. As a result, the instrument number display is erased, and only the predetermined screen fixed portion is displayed (process 1o5).

Then, the plug F is checked (process 109),
Since it is now It 011 (N in process 109), do the same as above.

Based on the process data P, a normal display as shown in FIG. 9 is made (processes 106 to 108). In addition, in the above process, processes 102 to 109, 111, 112,
115 to 117 are executed by the screen creation means 4f,
Processes 113 and 114 are executed by the instrument number succession means 41.

As described above, according to this embodiment, the keyboard 5 for performing various operations is provided with an instrument number display switch 5a in addition to the display screen selection switch group 5b for selecting the plant system diagram to be displayed. 1 display screen selection switch group 5
According to the operation b, the plant status is displayed in a consolidated manner on the same screen as before, so the operator can easily understand the plant status, and when necessary, by operating the instrument number display switch 5a. only,
Since the instrument number can be displayed, it no longer takes time and effort to determine the instrument number as in the past.
When an abnormality occurs in a plant, it will be possible to take prompt and accurate responses.

In addition, in the above embodiment, during normal screen display,
Due to the conventionally known error display switching logic, etc.
It goes without saying that abnormal process data P may be displayed in a different color or blinking.

In addition, in the above embodiment, the instrument numbers corresponding to all the displayed devices are displayed, but when an instrument number display request is made, the error display switching logic etc. described above are used to display the instrument numbers. As shown in Figure 6, only the meter number of the device with the abnormality may be displayed. In other words, when a request is made to display the meter number, first, the screen currently displayed at each input point is displayed. Then, it is confirmed that three conditions are satisfied: whether the process data P of that input point is displayed, whether the flag F for requesting instrument number display is "1", and whether or not that input point is abnormal. The determination is made (process 301), and the instrument number is displayed only in that case (process 302). This allows the operator to know only the instrument number of the necessary equipment to be investigated.

In addition, in Figure 9, the symbols of each device include MSI
The name and number of the device such as V and F2O3 are displayed, but when the name and number of this device are entered from the keyboard 5, the corresponding instrument number may be displayed. In this case, MSIV is 1. There are two on the screen, so
A different index name may be set for each device, and data indicating the index name and display position may be set in the screen variable portion data DPL.

Furthermore, if a plurality of instruments are installed in one device for duplication or the like, all instrument numbers may be displayed.

Furthermore, in the above embodiments, the screen display was performed using the CRT monitor 6, but a CRT monitor such as a plasma display
It goes without saying that other screen display devices may be used.

[Effects of the Invention] As described above, according to the present invention, the screen selection operation and the instrument number display request operation are performed on the console where various operations are performed, and the screen selection operation.

While the plant status is displayed in the same way as before, each instrument number is displayed only when an instrument number display request operation is performed, so normally the plant system is displayed in a consolidated manner on the same display screen as before. This makes it easier for operators to understand the plant status, and the instrument numbers can be displayed only when necessary, such as when an abnormality occurs in the plant, reducing the time and effort required to determine instrument numbers. Therefore, when an abnormality occurs in the plant, a quick and accurate response can be taken.

[Brief explanation of the drawing]

Fig. 1 is a block configuration diagram of a process computer system according to an embodiment of the present invention, Fig. 2 is a keyboard board layout diagram, Fig. 3 is an explanatory diagram of an instrument number table, and Fig. 4 shows screen display processing. Operation flowchart, FIG. 5 is an explanatory diagram showing an example of screen display of instrument numbers, FIG. 6 is an explanatory diagram showing another embodiment of the screen display method, FIG. 7 is a block configuration diagram of a conventional process computer system, and FIG. 9 is an operation flowchart showing conventional screen display processing, and FIG. 9 is an explanatory diagram showing an example of a conventional screen display of the plant status. l...Digital sensor, 2...Analog sensor, 3
...Process input/output device, 4...Process computer,
4a... Input operation means, 4b... Operation data update buffer, 4c... Screen fixed data memory, 4d...
- Screen variable data memory, 4e... Screen selection information input means, 4f... Screen creation means, 4g... Screen display means, 4h... Instrument number table, 4j... Instrument number reading means, 5 ...-Keyboard, 5b...Display screen selection switch group, 5f...Function key, 5a
...Instrument number display switch, 6...CRT monitor. (7317) Agent: Patent Attorney Noriyuki Chika (
8869) Ken Daishimaru Figure 5 Figure 6 Figure 8 Figure 9

Claims (1)

[Claims] Instruments are installed to detect the status of each device corresponding to multiple devices in the plant, and the process data obtained from each device is processed by a process computer, and the information of each device is displayed on the plant system screen. In a process computer system equipped with a screen display device for displaying status, a screen selection operation section for selecting a plant system screen to be displayed and an instrument number display request operation section for requesting display of an identification number of the instrument are provided. a console provided with the device; equipment status display means for displaying the status of each of the devices on the plant system screen selected by the screen selection operation section; and a request to display the identification number of the instrument by the instrument number display request operation section. A process computer system equipped with a screen display device, comprising: an instrument number display means for displaying an identification number of the instrument corresponding to each of the instruments on the plant system screen when the plant system screen is displayed.