JP2004085268A - Alarm control system for plant, and alarm control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To exactly classify and control alarm at maintenance and alarm at abnormalities which exist mixedly, in control of alarms which are generated, when a plant is operated. <P>SOLUTION: This alarm control system is provided with a signal input part 11, to which process signals 5 from a plant 4 are inputted, an alarm detection part 12 which sequentially detects alarm signals from among the process signals 5 inputted in the signal input part 11 as alarm ID information, an alarm storage part 13 for storing the alarm ID information outputted from the alarm detection part 12, an alarm display part 16 for displaying the alarm ID information read from the alarm storage part 13, and an alarm parameter input part 15 for inputting an alarm parameter, which matches the alarm ID information displayed on the alarm display part 16, on a display image. The alarm storage part 13 has a database structure, wherein the alarm parameter outputted from the alarm parameter input part 15 is stored, matching the alarm ID information outputted from the alarm detection part 12. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a management system and a management method for an alarm generated in an industrial plant or the like, and more particularly, to an alarm management system and an alarm management method capable of inputting an alarm generation factor and managing an alarm on a display screen based on the input factor. .
[0002]
[Prior art]
2. Description of the Related Art In various industrial plants represented by a steelmaking plant, a pulp and paper production plant, a water supply management plant, a refuse treatment plant, and the like, many alarms are generated with the operation of the plant.
[0003]
Conventionally, information such as alarm confirmation, occurrence time, tag, and description have been used as information for managing these alarms. Such information is usually stored in a database as alarm ID information in the alarm monitoring control device.
[0004]
The alarm ID information stored in the database in the alarm monitoring controller is displayed on a display screen such as a CRT attached to the alarm monitoring controller. Conventionally, the operator has managed the alarm based on the display on the display screen.
[0005]
By the way, alarms generated during operation of a plant are roughly classified into alarms generated at the time of maintenance of equipment and the like and serious alarms generated at the time of abnormality of the plant. Usually, these alarms are mixed.
[0006]
In such a situation, it is important to classify and manage alarms based on new ID information such as an alarm factor (information on the cause of the alarm) that was not registered in the conventional alarm ID information. Become.
[0007]
In order to solve this problem, conventionally, an operator manually records important ones of alarm factors in a diary.
[0008]
However, in such a case, the operator has to refer to each other substantially two interfaces, that is, the display screen of the display device added to the alarm monitoring control device and the logbook, in managing the alarm. For this reason, it is troublesome for the operator to integrate the conventional alarm ID information and the alarm factor into one alarm ID information, and there is a problem in that the management and analysis of the alarm are inadequate.
[0009]
In order to solve such a problem of interface integration, Japanese Patent Application Laid-Open No. 5-164577 discloses an alarm monitoring and control device for controlling a generated plant alarm on a single display screen such as a CRT.
[0010]
This alarm monitoring control device is a device for preventing useless alarms from being generated at the time of starting up and shutting down a plant, or at the time of transitional operation of increasing or decreasing the output of a plant, and A fixed-form command such as storage and confirmation of a message and stop of a buzzer is given in advance as a command key on a keyboard.
[0011]
Therefore, by operating these command keys, the operator can collectively display the alarm ID information and the contents of the command on a single display screen. As a result, the operator can monitor and control the alarm based only on the information displayed on the single interface.
[0012]
However, in this case, too, the operator has to manually record the new ID information such as an alarm factor in a diary, so that it is mixed in the management of the alarm generated during the operation of the plant. The problem of accurately classifying and managing alarms at the time of maintenance and alarms at the time of abnormalities has been left as an open problem.
[0013]
[Problems to be solved by the invention]
As described above, in the conventional alarm monitoring and control apparatus, when managing and analyzing alarms based on new ID information such as alarm factors that are not registered in the normal alarm ID information, a warning message is displayed on a display screen such as a CRT. There is a problem that it takes time to integrate the displayed information and the information described in the diary into one, and it takes time to manage the diary.
[0014]
Further, such an alarm monitoring control device has a problem that it is difficult to smoothly take over the work when an operator is replaced by a shift work.
[0015]
The present invention has been made in view of the above problem, and by inputting additional ID information relating to an alarm such as an alarm factor relating to the cause of an alarm, the alarm factor is collectively displayed on a display screen together with the conventional alarm ID information. The alarm can be displayed and displayed, and the operator can refer to only a single display screen to collectively and accurately classify and manage the alarms. Even when retroactively analyzing the alarm history information, it is directly connected to the alarms. An object of the present invention is to provide a plant alarm management system that can easily perform analysis work by displaying a memo together with alarm history information on a single display screen.
[0016]
[Means for Solving the Problems]
As means for solving the above problem, the plant alarm management system according to claim 1 includes a signal input unit for inputting a process signal from a plant, and a process signal input to the signal input unit. Alarm detection means for sequentially detecting an alarm signal as alarm ID information, alarm storage means for storing the alarm ID information output from the alarm detection means in each record, and reading from each record in the alarm storage means Alarm display means for displaying the generated alarm ID information, and a predetermined area on the alarm display means preliminarily associated with the alarm ID information displayed on the alarm display means. Alarm factor input means for inputting an alarm factor relating to the cause of the alarm to be generated, wherein the alarm storage means outputs the alarm factor from the alarm factor input means. A database structure for associating the generated alarm factor with the alarm ID information output from the alarm detection means as additional alarm ID information on a work area and storing the alarm factor information in the respective records together with the alarm ID information. I do.
[0017]
The plant alarm management system according to claim 2 is the plant alarm management system according to claim 1, wherein the alarm factors are read from the respective records in the alarm storage means, and the alarm factors are used as indices. The apparatus is further characterized by further comprising alarm classifying means for classifying the records for each alarm factor, and for changing the display format of the alarm display means with respect to the alarm display means based on the classification.
[0018]
The plant alarm management system according to claim 3 is the plant alarm management system according to claim 1 or 2, wherein the alarm display means reads the alarm ID read from each record in the database. The information and the alarm factor can be displayed collectively in a matrix format as new alarm ID information.
[0019]
Further, as a means for solving the above-mentioned problem, a plant alarm management method according to claim 4 receives a process signal from a plant and detects alarm ID information relating to an alarm from the input process signal. When the alarm ID information is displayed, the alarm ID information is displayed on the display means. When an alarm factor relating to the cause of the alarm is input, the alarm factor is associated with the alarm ID information as additional alarm ID information, and the alarm ID information is associated with the alarm ID information. The display means is collectively displayed in a matrix format.
[0020]
According to a fifth aspect of the present invention, in the plant alarm management method according to the fourth aspect, the input of the alarm factor is performed by an operator on a predetermined area of the display means. Features.
[0021]
Further, in the plant alarm management method according to claim 6, a process signal from a plant is input, and when alarm ID information relating to an alarm is detected from the input process signal, the alarm ID information is stored. When the alarm factor relating to the cause of the alarm is inputted, the alarm factor is associated with the alarm ID information as additional alarm ID information and written in the storage unit together with the alarm ID information, and read from the storage unit. The issued alarm ID information and the alarm cause are collectively displayed as new alarm ID information on a display means in a matrix format.
[0022]
A plant alarm management method according to a seventh aspect is the plant alarm management method according to the sixth aspect, wherein the input of the alarm factor is performed by an operator on a predetermined area of the display means. Features.
[0023]
Further, in the plant alarm management method according to claim 8, in the plant alarm management method according to claim 6, when a command to change the display format of the display means is input, the plant alarm management method is used. An alarm factor is read, the alarm ID information is classified for each alarm factor using the alarm factor as an index, and the display format of the display means is changed based on the classification.
[0024]
In the plant alarm management method according to the ninth aspect, in the plant alarm management method according to the eighth aspect, the input of the display format change command is performed by an operator in a predetermined area of the display means. It is characterized by being performed.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
[0026]
FIG. 1 is a block diagram showing a schematic configuration of an embodiment of a plant alarm management system according to the present invention. FIG. 2 is a schematic configuration diagram showing an embodiment of an alarm monitoring control device with a display screen on which the alarm management system of FIG. 1 is posted.
[0027]
As shown in FIG. 1, the plant alarm management system is roughly divided into an alarm management unit 10, an alarm factor input unit 15, and an alarm display unit 16.
[0028]
The alarm management unit 10 is incorporated in an alarm monitoring and control device 23 such as a general-purpose computer, for example, as shown in FIG.
[0029]
For example, as shown in FIG. 2, the alarm factor input unit 15 includes a keyboard 25 for inputting an alarm factor as additional information relating to the generated alarm on the display 24, a mouse 26 for indicating a predetermined area on the display 24 and operating the screen, and the like. Consists of
[0030]
The alarm cause input unit 15 is provided in a predetermined area of the alarm display unit 16 which is associated in advance with alarm information (for example, alarm confirmation, occurrence time, tag, description, etc.) for specifying the alarm displayed on the alarm display unit 16. (For example, the memo input area 33 in FIGS. 5 and 6) can be designated, and an alarm factor to be displayed in this area can be input.
[0031]
The alarm display unit 16 includes a display 24 such as a CRT which is added to a general-purpose computer as shown in FIG. 2, for example.
[0032]
The alarm management unit 10 further includes a signal input unit 11 for inputting a process signal 5 from the plant 4 and an alarm detection unit 12 for sequentially detecting an alarm signal from the process signal 5 output from the signal input unit 11 as alarm information. And an alarm storage unit 13 that stores alarm information output from the alarm detection unit 12 in each record via the CPU 1 and the RAM 2.
[0033]
The alarm display unit 16 displays the alarm information read from the alarm storage unit 13 on the work area of the RAM 2 via the CPU 1. The alarm display unit 16 can also directly display the alarm information output from the alarm detection unit 12 via only the RAM 2.
[0034]
Further, the alarm storage unit 13 associates the alarm factor output from the alarm factor input unit 15 with the alarm information output from the alarm detection unit 12 on the work area of the RAM 2 and stores the alarm factor via the CPU 1 as additional alarm information. It has a database structure in which each record in the unit 13 is stored together with the alarm information.
[0035]
The alarm storage unit 13 includes an alarm information storage area 131 in which conventional alarm information (the above-described alarm confirmation, occurrence time, tag, description, and the like) output from the alarm detection unit 12 is stored, and an alarm factor input unit 13. Has an alarm factor storage area 132 in which an alarm factor which is an output from the device is stored. The two areas form an alarm ID information storage area 133.
[0036]
The alarm information storage area 131 is composed of a group of a plurality of records, and each record stores alarm information for each alarm that has occurred. The alarm factor storage area 132 also includes a group of a plurality of records, and each record stores an alarm factor for each alarm that has occurred.
[0037]
The alarm storage unit 13 is stored in the storage unit 21 of the alarm monitoring and control device 23, for example, as shown in FIG.
[0038]
Further, the alarm management unit 10 reads the alarm factor from the respective records in the alarm factor storage area 132 of the alarm storage unit 13 onto the work area of the RAM 2 via the CPU 1, and reads the alarm factor read on this work area. Each record in the alarm information storage area 131 is classified for each alarm factor using the index as an index, and a new database relating to the alarm information and the alarm factor is created in the work area of the RAM 2 based on the classification, and an alarm is generated according to the new database. An alarm classifying unit 14 is provided for changing the display format of the alarm information and the alarm cause displayed on the display unit 16 to the alarm display unit 16 via the CPU 1.
[0039]
Further, the alarm classification unit 14 can identify alarm information relating to an alarm that is currently occurring as occurrence alarm information, and can identify history information of occurrence alarms in which the occurrence alarm information is accumulated as alarm history information.
[0040]
The generated alarm information called from each record in the alarm information storage area 131 in the alarm storage unit 13 or the generated alarm information directly output from the alarm detection unit 12 only through the RAM 2 is output through the alarm classification unit 14. It is displayed on the display 24 as an occurrence alarm screen 31 (see FIG. 5). Similarly, the alarm history information called from each record in the alarm information storage area 131 in the alarm storage unit 13 is displayed on the display 24 as an alarm history screen 35 (see FIG. 6) via the alarm classification unit 14. You.
[0041]
Further, when the display format of the alarm ID information and the alarm cause displayed on the alarm display section 16 is changed based on the classification, a predetermined operation (for example, operating a sorting key by operating the keyboard 25 or the mouse 26). And the like, the alarm classification unit 14 sorts and sorts, for example, alarm history information for each alarm factor in accordance with the new database created on the work area of the RAM 2 and displays it on the display 24 as a new alarm history screen. I do.
[0042]
In FIG. 1, the alarm storage unit 13 is provided in the alarm management unit 10 integrally with the signal input unit 11, the alarm detection unit 12, the alarm classification unit 14, the alarm factor input unit 15, and the alarm display unit 16. Have been. However, it goes without saying that in order to centrally manage and store a large amount of history information of alarm information, only the alarm storage unit 13 may be separated and separately incorporated in a server.
[0043]
In the above embodiment, the CRT display is described as an example of the alarm display unit 16 for displaying the alarm information and the alarm factor. However, the present invention is not limited to this embodiment. Various display devices such as a touch panel display, an HM display (head mounted display) and the like can be applied.
[0044]
In the above-described embodiment, the keyboard and the mouse are described as an example of the alarm factor input unit 15. However, the present invention is not limited to this embodiment, and various other devices such as a touch panel, a joystick, a tablet, and a scanner may be used. Input devices can be applied. In particular, when an input device such as a touch panel or a joystick is used, it is possible to select an alarm factor from among the alarms for each alarm by displaying an assumed alarm factor on a display in advance.
[0045]
Further, in the above-described embodiment, the alarm display unit 16 and the alarm factor input unit 15 have been described as separate units such as a CRT display, a keyboard, and a mouse. However, these are specified in the claims of the present application. It can be provided integrally without departing from the spirit of the invention. As an example, a touch panel, a tablet, or the like is applicable. In this case, in addition to the advantages described above, there is an advantage that the operator can directly input additional information such as an alarm factor on the display screen.
[0046]
In the above description, a general-purpose computer has been described as an example of a general-purpose computer as an alarm monitoring control device with a display screen on which the alarm management system of the present invention is posted. Of course, this is a process computer dedicated to a plant. There may be.
[0047]
Further, the alarm management of the plant is not always performed from the same plant site. In some cases, plant alerts may be managed from a remote location. In that case, the alarm management system of the present invention can be sufficiently applied to, for example, a portable terminal. In this case, as described above, it is also possible to separate the large-capacity alarm storage unit 13 into a separate server and provide other functions to the client portable terminal.
[0048]
Next, a procedure for managing a currently occurring alarm using the alarm management system of the present invention will be described with reference to FIGS. 1, 2, 3, and 5. FIG. FIG. 3 is a flowchart showing a procedure for managing generated alarm information on an alarm currently being generated using the alarm management system according to the embodiment. FIG. 5 is an explanatory diagram showing one embodiment of an alarm display screen for displaying alarm information on an alarm that is currently occurring.
[0049]
In FIG. 3, first, the signal input unit 11 prompts the input of the process signal 5 from the plant 4 (step 1).
[0050]
Next, the alarm detection unit 12 determines whether the process signal 5 input to the signal input unit 11 is a signal relating to an alarm, and detects an alarm signal (step 2).
[0051]
When the process signal 5 is determined by the alarm detection unit 12 to be an alarm signal, the CPU 1 uses the output of the alarm signal from the alarm detection unit 12 as the alarm information on the currently generated alarm. It is temporarily stored in the area (step 3).
[0052]
Next, the generated alarm information is displayed as an alarm screen 31 on the display 24 via the alarm classifying unit 14 (step 4).
[0053]
At this point, since the alarm factor has not been input yet, the alarm classification unit 14 does not substantially operate.
[0054]
In an embodiment of the alarm display screen 31 shown in FIG. 5, an alarm for specifying an alarm such as an alarm confirmation, an alarm time, a tag, and a description, which is included in the alarm display function of the conventional alarm monitoring and control device, is displayed on the alarm display screen. A memo column 32 is provided in addition to the information display column.
[0055]
When the operator moves the mouse pointer 34 to the memo input area 33 of the memo box 32 by using the mouse 26 and inputs additional ID information such as an alarm factor using the keyboard 25 (step 5), the keyboard 25 executes the CPU 1 operation. The CPU 1 notifies the alarm storage unit 13 of a change in the generated alarm information through the CPU, and in response to the notification, the CPU 1 adds the alarm factor to the generated alarm information as additional ID information for the generated alarm information, and The information is stored in the alarm factor storage area 132 in the memory 13, that is, the memory is rewritten (step 6).
[0056]
Further, the alarm factor input by the keyboard 25 is changed via the RAM 2 into a predetermined area (for example, a memo box 32) of the alarm screen 31 in a format corresponding to the alarm information. (Step 7).
[0057]
On the other hand, if the output from the signal input unit 11 is determined not to be an alarm by the alarm detection unit 12 in step 2, a series of operations is completed and the process returns to the state of waiting for the next process signal input. Similarly, even if the operator does not enter the memorandum information on the alarm cause information using the keyboard 25 in step 5, the series of operations shown in FIG. 3 are completed and the process returns to the state of waiting for the next process signal input.
[0058]
Note that, in the embodiment of the occurrence alarm screen, an example in which the number of the memo columns 32 is one has been described, but a plurality of memo columns may be provided.
[0059]
Further, in one embodiment of the above-mentioned alarm screen, the alarm information described in the alarm information column and the alarm factor written in the memo column are integrated with information and a row, and the occurrence times are displayed in a matrix as columns. Although this is described as an example, rows and columns may be replaced in this matrix display.
[0060]
Furthermore, the display method of the occurrence alarm screen of the present invention does not need to be defined in such a matrix display. In other words, if the display method is such that the correspondence between the predetermined information and the memo is clear to the operator, Obviously, any display method (such as a graph or a diagram) can be applied without departing from the spirit of the present invention specified in the claims of the present application.
[0061]
Next, a procedure for managing a history of alarms that have occurred in the past using the alarm management system of the present invention will be described with reference to FIGS. 1, 2, 4, and 6. FIG. FIG. 4 is a flowchart illustrating a procedure for managing history information of alarms that have occurred in the past using the alarm management system according to the embodiment. FIG. 6 is an explanatory diagram showing an embodiment of an alarm history screen that displays history information of alarms that have occurred in the past.
[0062]
In FIG. 4, first, a series of operations from step 1 to step 7 described in FIG. 3 are repeated, so that the generated alarm information on the generated alarm is sequentially written in the alarm storage unit 13 and accumulated as alarm history information. (Step 10).
[0063]
Next, when the operator calls the alarm history information stored in the alarm ID storage area 133 in the alarm storage unit 13 via the CPU 1 using the keyboard 25 and the mouse 26 (step 11), the display 24 displays the alarm. Alarm history information is displayed on the history screen 35 (step 12).
[0064]
In the alarm history screen 35 shown in FIG. 6, similarly to FIG. 5, an alarm information field for specifying an alarm such as an alarm confirmation, an occurrence time, a tag, and an explanation in the alarm display function of the conventional alarm monitoring control device is provided. In addition, a memo field 32 is provided.
[0065]
When the operator moves the mouse pointer 34 to the memo input area 33 of the memo box 32 with the mouse 26 and newly inputs additional ID information such as an alarm factor or correction items with the keyboard 25 (step 13). The keyboard 25 notifies the alarm storage unit 13 of the change in the alarm history information via the CPU 1, and in response thereto, the CPU 1 adds the alarm factor to the alarm history information as additional ID information for the alarm history information. Then, it is stored in the alarm factor storage area 132 of the alarm storage unit 13, that is, the storage is rewritten (step 14).
[0066]
Further, the alarm factor input by the keyboard 25 is changed via the RAM 2 into a predetermined area (for example, the memo box 32) of the alarm history screen 35 in a format corresponding to the alarm history information. (Step 15).
[0067]
In the embodiment of the alarm history screen 35 shown in FIG. 6, sorting keys 36, 37, and 38 are added to the alarm information column. The memo column 32 is also provided with a sorting key 39, and the operator operates the sorting key 39 using the keyboard 25 and the mouse 26 (step 16) to display the history information according to the contents of the memo. Can be performed (step 17).
[0068]
At this time, the CPU 1 reads out the alarm cause from each record in the alarm cause storage area 132 of the alarm storage unit 13 onto the work area of the RAM 2, classifies the alarm history information for each alarm cause using the alarm cause as an index, and Change the display format of the alarm history screen, such as rearranging the display contents for each classification. This makes it possible to analyze the alarm history in more detail and smoothly than in the past.
[0069]
On the other hand, if the operator does not call the alarm history information in step 11, the series of operations shown in FIG. Similarly, in step 13, even when the operator does not make a memo entry of an additional item or a correction item in the alarm history information, the series of operations shown in FIG.
[0070]
In the embodiment of the occurrence alarm screen, one example of the memo column 32 has been described. However, a plurality of memo columns may be provided.
[0071]
In the embodiment of the alarm history screen, a matrix display similar to that of the occurrence alarm screen is taken as an example. However, rows and columns may be replaced in the matrix display.
[0072]
Furthermore, the display method of the alarm history screen according to the present invention does not necessarily need to be defined in such a matrix display. In other words, if the display method is such that the correspondence between the alarm information and the memo is clear to the operator. Obviously, any display method (such as a graph or a diagram) can be applied without departing from the spirit of the present invention specified in the claims of the present application.
[0073]
【The invention's effect】
As described above, according to the present invention, an alarm factor input unit for inputting an alarm factor relating to a cause of an alarm, and an alarm display unit for displaying the alarm factor on the display screen in association with the alarm ID information Is provided, it is possible to collectively manage the alarm at the time of maintenance and the alarm at the time of abnormality on a single screen. Further, by providing the alarm storage means for storing the alarm factor in association with the alarm ID information, even when the alarm history information is analyzed retroactively, the analysis work can be easily performed. Become.
[0074]
Further, according to another aspect of the present invention, by providing an alarm classification means capable of classifying alarm information based on an alarm factor, the generated alarm is displayed on a display screen using the alarm factor as an index. It becomes possible to classify every.
[0075]
Further, according to another aspect of the present invention, the alarm display means can display alarm information and an alarm factor in a matrix, so that an operator can prevent erroneous recognition when managing an alarm. .
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of an alarm management system according to an embodiment of the present invention.
FIG. 2 is a schematic configuration diagram showing an embodiment of an alarm monitoring control computer with a display screen on which the alarm management system of FIG. 1 is posted.
FIG. 3 is a flowchart showing a procedure for managing a currently occurring alarm using the alarm management system according to the embodiment.
FIG. 4
It is a flowchart which shows the management procedure of the alarm which generate | occur | produced in the past using the alarm management system which concerns on the said embodiment.
FIG. 5
FIG. 3 is an explanatory diagram showing one embodiment of a screen displaying a currently occurring alarm of the present invention, which is displayed on the display screen of FIG. 2.
FIG. 6
FIG. 3 is an explanatory diagram showing one embodiment of a screen for displaying a previously generated alarm of the present invention, which is displayed on the display screen of FIG. 2.
[Explanation of symbols]
1 CPU
2 RAM
3 ROM
4 plants
5 Signal from plant
6 Alarm signal
10 Alarm Management Department
11 signal input section
12 Alarm detector
13 Alarm storage
131 Alarm information storage area
132 alarm factor storage area
133 Alarm ID information storage area
14 Alarm classification section
15 Alarm factor input section
16 Alarm display
21 Main unit storage
23 Alarm monitoring and control device
24 Display
25 Keyboard
26 mouse
31 Occurrence alarm screen
32 Memo column
33 Memo input area
34 mouse pointer
35 Alarm history screen
39 Sorting key for memo

Claims (9)

Signal input means for inputting a process signal from the plant,
Alarm detection means for sequentially detecting an alarm signal as alarm ID information from the process signals input to the signal input means,
Alarm storage means for storing the alarm ID information output from the alarm detection means in each record;
Alarm display means for displaying the alarm ID information read from each record in the alarm storage means,
An alarm factor input for enabling designation of a predetermined area on the alarm display means previously associated with the alarm ID information displayed on the alarm display means, and inputting an alarm factor relating to a cause of an alarm to be displayed in this area. Means,
In a plant alarm management system with
The alarm storage unit associates the alarm factor output from the alarm factor input unit with the alarm ID information output from the alarm detection unit as additional alarm ID information on a work area together with the alarm ID information. A plant alarm management system having a database structure for storing each record. 2. The alarm management system for a plant according to claim 1, wherein the alarm factor is read from each of the records in the alarm storage unit, and the records can be classified by the alarm factor using the alarm factor as an index. An alarm management system for a plant, further comprising an alarm classifying means for changing a display format of the alarm display means with respect to the alarm display means based on the condition. 3. The alarm management system for a plant according to claim 1, wherein the alarm display unit uses the alarm ID information and the alarm factor read from each record in the database as new alarm ID information in a matrix format. 4. An alarm management system for a plant, wherein batch display is possible. Input the process signal from the plant,
When alarm ID information relating to an alarm is detected from the input process signal, the alarm ID information is displayed on display means,
When an alarm factor relating to the cause of the alarm is input, the alarm factor is associated with the alarm ID information as additional alarm ID information and displayed together with the alarm ID information in a matrix format on the display means. Plant alarm management method. The plant alarm management method according to claim 4, wherein the input of the alarm factor is performed by an operator to a predetermined area of the display means. Input the process signal from the plant,
When alarm ID information related to an alarm is detected from the input process signal, the alarm ID information is written into a storage unit,
When an alarm factor relating to the cause of the alarm is input, the alarm factor is associated with the alarm ID information as additional alarm ID information and written in the storage unit together with the alarm ID information,
A plant alarm management method, wherein the alarm ID information and the alarm factor read from the storage unit are collectively displayed as new alarm ID information on a display unit in a matrix format. 7. The plant alarm management method according to claim 6, wherein the input of the alarm factor is performed by an operator to a predetermined area of the display unit. 7. The alarm management method for a plant according to claim 6, wherein when an instruction to change the display format of the display unit is input, the alarm factor is read from the storage unit, and the alarm ID information is set using the alarm factor as an index. Is classified for each of the alarm factors, and the display format of the display means is changed based on the classification. 9. The plant alarm management method according to claim 8, wherein the input of the display format change command is performed by an operator on a predetermined area of the display unit.

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