JPS61166697A - Abnormality monitor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is incorporated into a computer control system that controls a steel plant, etc., and detects abnormalities including failures occurring in the plant and control system, and monitors them by displaying them on a screen. The present invention relates to an abnormality monitoring device that performs the following.

[Technical background of the invention]

Generally, in this type of abnormality monitoring device, when a failure occurs in the plant or an abnormality occurs in the control system itself, a message indicating the general details is displayed on the screen of a CRT display, for example. It has become something to do. In addition, in the event that a serious failure occurs, an alarm such as a buzzer will be emitted at the same time as the above screen display.

[Problems with background technology]

The display means in the conventional abnormality monitoring device described above simply displays a message on the screen that generally indicates the contents of the abnormality, including failures, so it is difficult to trace the cause of the failure etc. from the displayed contents. be. As a result, only temporary measures were taken to restore the plant based on the above display contents, and it was necessary to separately take analysis and repair measures to find a fundamental solution. In addition,
There is also a way to display a lamp indicating the occurrence of an abnormality on a display panel, etc.
The range that can be monitored using lamp displays is limited due to issues such as installation space. For this reason, when the target is a plant such as a steel plant whose facilities are spread out over a wide area, it is almost impossible to centrally monitor all conditions in one place using lamp displays.

[Purpose of the invention]

The purpose of the present invention is to centrally monitor the status of a plant and control system at one location, to instantly detect the occurrence of abnormalities, and to analyze the causes of abnormalities, including failures, based on the information displayed on the screen. It is an object of the present invention to provide an abnormality monitoring device that can perform immediate analysis, shorten the time required for analysis, and, in turn, enable early recovery of the plant and improve the operating rate.

[Summary of the invention]

In order to achieve the above object, the present invention is characterized by the following configuration. That is, when an abnormality, including a failure, occurs in a plant or control system, it is detected and a message indicating the nature of the abnormality is sent, as well as input/output signal status, control tables and flags in the computer related to the abnormality, etc. The abnormality analysis information for the following items will be displayed simultaneously on the same screen. Then, an index number is attached to the data corresponding to the displayed screen and the data is stored in the memory. When reading out and displaying a required screen when analyzing abnormality contents, the above-mentioned index number is specified, and the stored data of the index number is selected at the appropriate time, read out, and displayed at t6. aoth&! 6□1. □
It is desirable that the information portions having the □□ and 1' sections be displayed in a special manner, such as by color, so that they can be distinguished from other information. In this way, plant failures and control system abnormalities can be displayed on the screen to enable centralized monitoring at the site, and the cause of the abnormality can be analyzed based on the analysis information displayed together with the message indicating the abnormality. It is characterized by being able to be performed immediately.

[Embodiments of the invention]

FIG. 1 is a block diagram showing the configuration of a first embodiment of the present invention. , 10 is the main body of the abnormality monitoring device, and the transmission station 11 . Transmission data memory 12゜Anomaly exploration data memory 13. Arithmetic processing control unit 141 Display/recording control unit 15. It consists of an I10 bus interface 16, etc. The display/recording control unit 15 of the abnormality monitoring device main body 10 includes a CRT display 17 and a printing machine 1.
8 are connected.

The transmission station 11 is a transmission line 1 connecting each station provided in the control system of the plant.
9, and transmits and receives various data.

The transmission data memory 12 stores signals sent and received from other stations via the transmission station 11 and I/O.
○A memory that temporarily stores and holds data such as signals. Note that the contents stored in the memory 12 are updated every transmission cycle.

The abnormality exploration data memory 13 is the transmission data memory 1.
This is a memory that sequentially stores data that is received at the time when a failure or abnormality occurs among the data transferred from 2.

The arithmetic processing control unit 14 selects required data from among the data stored and held in the transmission data memory 12, copies and transfers this to the anomaly exploration data memory 13 and the display/recording control unit 15, and at the same time transfers the selected data to the anomaly exploration data memory 13 and the display/recording control unit 15. Performs calculation processing and checks for abnormalities.
A command revealed based on the result is given to the abnormality search data memory 13 and the display/record control unit 15. Also, when an external request is made to read and display an abnormality screen during analysis, the abnormality exploration data memory 131 display/recording control unit 15
Give read and display command to.

The display/recording control unit 15 is the arithmetic processing control unit 1
4, a predetermined message and transfer data from the transmission data memory 12 are supplied to the CR7 display 17 and the printing machine 18 to display and record the abnormality.

The I10 bus interface 16 is an interface that connects the abnormality monitoring device main body 10 and an external I10 device.

Next, the operation of this device configured as described above will be explained.Various data transmitted from other stations, I10 mounts, etc. via the transmission line 19 at regular transmission cycles is transmitted to the transmission station. 11 and is temporarily stored and held in the transmission data memory 12.This stored and held data is updated at each fixed transmission cycle, but before updating, it is received by a control signal from the arithmetic processing control unit 14. , only predetermined data indicating the operating status of the plant or the Jm system are selected and stored in the anomaly exploration data memory 13.
and is copied and transferred to the display/recording control unit 15.

On the other hand, the arithmetic processing control unit 14 performs arithmetic processing on the transfer data and checks for abnormalities. If there is no abnormality, no particular command will be sent from the arithmetic processing control unit 14.

Therefore, the data transferred to the abnormality exploration data memory 13 is not stored and disappears as it is. Further, the data transferred to the display/recording control unit 15 is sent to the CR7 display 17 and displayed on the screen.

When an abnormality is detected in the arithmetic processing control unit 14, an abnormality display/recording command is given to the display/recording control unit 15. Then, a message indicating a predetermined abnormality stored in the unit 15 is selected, and data such as a control table, flags, etc. in the I10100 computer is transferred to the display/recording control unit 15 at that point. and send it to the CR7 display 17, 32. Yo. , Q-□yo, yo. 46□yo 1'
□Printing is performed by the printing machine 18 as necessary.

On the other hand, an abnormality data recording command is given to the abnormality exploration data memory 13. Then, the data corresponding to the above display screen, that is, the data such as the control table and flags in the I10100 computer that were transferred to the anomaly exploration data memory 13 by the prisoner at that time, are assigned the same index number as the message number and stored in the memory. is stored at a predetermined address within. Note that the timing of display and printing and the timing of data storage are substantially the same timing, and are synchronized with the transmission synchronization.

Therefore, inputting I10100, checking for failure or abnormality, displaying and printing messages, etc.
There is almost no time lag between data storage,
Display and storage are performed almost simultaneously with the occurrence of the abnormality.

FIG. 2 is a diagram showing the screen displayed on the CR7 display 17. In the figure, 2o is a display screen, a message display area 1a21 located horizontally at the upper end displays a message indicating the content of the abnormality, and an analysis information display area 22 located at the center is used for analysis of the abnormality. I valid for
Information such as control tables and flags inside the memory in the 10100 control system computer is displayed as an image. Note that the code 23゜24 in the analysis information display area above
are Ilo, tables, and tables that are determined to be closely related to the failure or abnormality by the arithmetic processing control unit 14.
The flags are displayed in different colors, for example, so that they can be distinguished from other parts.

As a result of the above-mentioned display screen 2o being displayed on the CR7 display 17, failures or abnormalities can be detected based on the various data displayed in the analysis information display area, especially the display contents of the color-coded sections 23 and 24. It is possible to analyze the causes etc.

The above-mentioned series of operations are sequentially performed on data signals sent at regular transmission intervals.

Incidentally, the period during which the details of the above-mentioned failure or abnormality are displayed simultaneously with the occurrence of the failure or abnormality is relatively short.

Therefore, if sufficient analysis is required, the data stored in the anomaly exploration data memory 13 may be read out, displayed, and analyzed.

FIG. 3 is a diagram showing a message menu screen when such screen display is performed one after another, and FIG. 4 is a flowchart showing the operation. First, in step 41, an external readout and display request is sent to the arithmetic processing control unit 1 as a start command.
Give for 4. Then, in step 42, the arithmetic processing control unit 14 gives a message menu display command as an abnormal screen selection command to the display/recording control unit 15. Then, in step 43, a group of messages previously stored in the unit 15 are read out all at once and displayed on the CR7 display 17 as a message menu screen as shown in FIG.

As shown in FIG. 3, the message display areas 31, 32...3n arranged horizontally on the display screen 30 include:
Each message is displayed in an orderly manner with an index number attached to the side. Therefore, in step 44, it is checked whether or not the message menu displayed above includes the content of the abnormality to be read and displayed. If it is included, in step 45, the index of the corresponding menu is displayed. A number, for example, number 0, is specified using a keyboard (not shown).

Then, the data corresponding to the message with the index number is read out from the abnormality investigation data memory 13, and in step 46, the data corresponding to the message with the specified index number is read out from the second data memory.
The screen is displayed on the CR7 display 17 as shown in the figure. In this way, the cause of the abnormality can be analyzed during a free period that is not directly related to the data input operation.
can do it well. In addition, if the message menu screen displayed initially does not include the desired abnormal message, it is determined in step 47 whether or not it is necessary to view another message menu, and the menu screen of the above function is displayed. In this case, a readout display request is given to the arithmetic processing control unit 14 again. Then, the next menu screen will be displayed. Therefore, perform the same operations as in the above case. , Yo9, □. □, □Wow, 6 1
゛It is shown. Thus, in step 48, the continuous display of stored data is completed.

FIG. 5 is a block diagram showing a second embodiment of the present invention. The difference between this embodiment and the first embodiment is that a floppy driver 51 and a floppy disk 52 are added, and when the memory capacity of the troubleshooting data memory 13 is insufficient, the floppy disk 52 is loaded via the driver 51. The point is that the data to be stored is transferred and stored. Therefore, according to this embodiment, operational failures due to insufficient storage capacity can be avoided.

Since the points other than the above are completely the same as those of the first embodiment, the same parts are given the same reference numerals and the explanation will be omitted.

Note that the present invention is not limited to the above embodiments.

For example, in the above embodiment, the part of the analysis information displayed in the analysis information display area that is closely related to the failure or abnormality is displayed in different colors. In cases where it is difficult or when the color-separated effect is weak, it may be possible to distinguish it from other parts by using a special code, flickering, or displaying a frame. good.

〔Effect of the invention〕

According to the present invention, when an abnormality including a failure occurs in a plant and a control system, the abnormality is detected and a message indicating the details of the abnormality is sent, as well as an I10 signal at the time when the abnormality occurs, an internal control table in the computer, Abnormality analysis information such as flags is displayed simultaneously on the same screen. Data corresponding to this display screen is stored in a memory and can be read out and displayed at any time. Therefore, by looking at the above display screen, it is possible to intensively monitor the plant status and the control system status, and detect abnormalities immediately. The cause of the abnormality can be analyzed immediately. As a result, it is possible to shorten the time required for the above-mentioned analysis, and in turn, it is possible to provide an abnormality monitoring device that enables early recovery of the plant and improves the operating rate of the plant.

[Brief Description of the Drawings] Figures 1 to 4 are diagrams showing a first embodiment of the present invention, in which Figure 1 is a block diagram showing the configuration, Figure 2 is a front view showing a failure display screen, FIG. 3 is a front view showing the failure message menu screen, and FIG. 4 is a flowchart for explaining the operation when reading and displaying the failure screen stored in the memory. Fifth
The figure is a block diagram showing a second embodiment of the present invention. 10... Failure display device main body, 20... Failure display screen. 21...Message display area, 22...Data display area for analysis, 23.24...Special display part, 3o...
- Failure message menu screen, 31.32... message display area. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2 Figure 3 n Figure 4

Claims (2)

[Claims] (1) Abnormality detection means for detecting abnormalities including failures that occur in the plant and the computer control system that controls the plant, and when an abnormality is detected by this abnormality detection means, a message indicating the details of the abnormality is sent along with the above abnormality. A display means for simultaneously displaying information for abnormality analysis such as related input/output signals, control tables in the computer, flags, etc. on the same screen, and an index for the data corresponding to the screen indicating the abnormality displayed by this display means. It is characterized by comprising a storage means for storing the data in a numbered manner, and a means for reading out data necessary for anomaly analysis from among the data stored by the storage means and displaying it on a screen by specifying the index number. Abnormality monitoring device. (2) The scope of claims characterized in that the display means includes means for specially displaying an information part that is closely related to the abnormality in the abnormality analysis information so that it can be distinguished from other information parts. The abnormality monitoring device described in paragraph (1).