JP3192283B2 - Recovery support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a general industrial facility, for example, when a failure occurs in an electronic device such as a programmable controller, a display device, an input / output device, and a data transmission device which constitutes a control device of a steel rolling plant. In particular, the present invention relates to a recovery support device that analyzes a cause of a failure of an electronic device, displays a necessary recovery work procedure, and performs a recovery work in a short time without error.

[0002]

2. Description of the Related Art Generally, a control device for controlling a steel rolling plant includes a programmable controller, a display device,
I / O device, data transmission line (hereinafter, data transmission device)
An electronic device such as a LAN is used. FIG.
FIG. 3 is a diagram showing a configuration of a control device, in which an input / output device PIO, a programmable controller PC, and a display device CRT are connected on a data transmission device LAN, and the controller PC executes predetermined arithmetic processing according to a program. The data of the calculation result is controlled via the input / output device PIO to control the machine, and the control result based on the data of the calculation processing result is displayed on the display device CRT.

[0003] Conventionally, when a failure occurs in an electronic device during the operation of equipment, as shown in FIG.
Controller PC, display CRT,
While showing constituent boards such as the input / output device PIO, in order to clarify which board has a fault, only the location of the faulty board is displayed by color change.

[0004] Therefore, when a maintenance person finds a defective board from the color change display, the maintenance tool connects an engineering tool EWT capable of collecting diagnostic information to the defective board CARD as shown in FIG. 12 to collect diagnostic information. FIG. 13 and FIG. 14 are examples of collected data of diagnostic information by the engineer tool EWT. Therefore, the maintenance staff has been trying to determine the cause by the human system from the troublesome diagnosis information expressed in hexadecimal like the collected data example, and to judge and take measures for recovery.

[0005]

However, in the above-mentioned restoration support device, the maintenance staff connects the engineering tool EWT and collects diagnosis information for a rarely occurring malfunction of the electronic device. In many cases, the operator forgets how to collect information or forgets how to analyze diagnostic information even if it is collected.

[0006] On the other hand, with respect to the board failure of the electronic device,
Replacing a defective board with a spare board is the quickest way to recover, but at this time, it is necessary to set various switches on the spare board to the same as the faulty board, and it is necessary to load and replace the program There are also various types of boards, and when replacing boards, they deal with them by referring to the instruction manuals, drawings, and the like. In this case as well, a lot of time is spent on restoration work.

[0007] There are hundreds of diagnostic causes for electronic devices, dozens of types of boards, and inconveniences of these boards rarely occur, and the maintenance staff has little experience in recovery work. Are one of the causes that greatly delay recovery.

When a program is loaded, the program is downloaded from a floppy disk storing the program to a board via an engineering tool EWT, but the loading operation method may be erroneous.

In addition, considering that a failure of a board usually occurs only rarely, when a failure actually occurs, a maintenance person is often not so different from a novice, and the cause cannot be determined or an erroneous determination can be made. Or spend a lot of time on recovery work.

The present invention has been made in view of the above circumstances, and automatically collects diagnostic information which has been conventionally collected by a maintenance staff by connecting an engineer tool to a defective board and performing unfamiliar operation. It is an object of the present invention to provide a recovery support device which automatically analyzes and investigates the cause of which the diagnosis information is analyzed by a system, and displays the cause and action thereof, and promptly copes with the recovery.

Another object of the present invention is to automatically replace a defective board or set switches with reference to an instruction manual, a drawing, or the like, instead of a maintenance person. Is displayed on a screen, and a recovery support device that increases the efficiency of the board replacement operation is provided.

Still another object of the present invention is to provide a recovery support apparatus which periodically updates and saves the latest program to prevent a maintenance worker from mistakenly downloading a past program by mistake. .

[0013]

According to a first aspect of the present invention, there is provided a recovery support apparatus for performing a recovery support for a failure of a target electronic device connected to a data transmission apparatus. When a failure occurs in the electronic device, after receiving the failure data of the target electronic device sent through the data transmission device, the diagnostic information of the board related to the failure target electronic device is transmitted via the data transmission processing unit. A data reception processing means for requesting and receiving diagnostic information of the board related to the electronic device subject to failure sent based on the request; and collecting the diagnostic information received by the data reception processing means. Diagnostic information collecting means for storing each type of board constituting the target electronic device, and analyzing the diagnostic information collected by the diagnostic information collecting means, Investigation and a recovery support system provided with the diagnostic information analyzing means for displaying the treatment and its failure due to the restoration support screen display unit.

According to a second aspect of the present invention, there is provided a restoration procedure storing means in which a restoration procedure is newly stored in advance in the constituent elements of the first aspect of the invention based on various causes and actions of failure. A program storage unit for storing a program collected from the electronic device to be malfunctioned, and a recovery procedure determined from the failure cause and the action analyzed by the diagnostic information analysis unit, and reading out a corresponding recovery procedure from the recovery procedure storage unit Recovery procedure determination processing means for displaying the program on the recovery support screen display unit and reading the program from the program storage means when the loading of the program is necessary from this recovery procedure and instructing the failure target electronic device to download the program. Is a recovery support device obtained by adding

According to a third aspect of the present invention, there is provided a program storage means for storing a program newly collected from the electronic device having a defect, and a latest program stored in the components of the first aspect of the invention. To save
A program update requesting means for periodically requesting the target electronic device for an update program of various substrates; a data transmission processing means for transmitting request data of an update program by the program update request means; and a data transmission processing means. After receiving the update program sent from the target electronic device side via the data transmission device by the request data of the target electronic device through the data reception processing unit, the program is added with a program update processing unit for storing the program in a corresponding area of the program storage unit. In the recovery support device, the latest program is read out from the program storage means and can be loaded at the time of recovery processing by the recovery procedure determination processing means.

[0016]

According to the present invention, when the above-described means are taken, when a malfunction of the target electronic device occurs, the diagnostic information relating to the board of the malfunctioning electronic device is generated by the data transmission / reception means. Is stored in the storage means of the diagnostic information collecting means for each type of substrate. Thereafter, the diagnostic information analysis unit analyzes the collected diagnostic information to determine the cause, and displays the cause and action of the failure on the recovery support screen display unit. Can be easily grasped, and preparation of restoration equipment can be performed at an early stage.

Next, the invention corresponding to claim 2 has the same operation as the invention of claim 1, and further includes a specific restoration procedure of the restoration equipment on the restoration support screen display section based on the cause of the failure and the action. Is displayed, and if the work is performed in accordance with the recovery procedure, there is no error or omission, and the recovery work can be performed in a short time.

Further, in the invention according to claim 3, since the maintenance program is periodically updated and stored in the latest program, even if the maintenance person is a novice, the maintenance program does not inadvertently load the old program and always loads the latest program. Can be used to proceed with the recovery procedure.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a basic configuration of a system to which a recovery support device according to the present invention is applied.

The control device is, for example, a data transmission device L
An input / output device PI for inputting / outputting data to / from the AN
O, an electronic device such as a controller PC for executing predetermined arithmetic processing in accordance with a program and controlling each component and a display device CRT for displaying an arithmetic result and a control state by the controller PC is connected, and furthermore, when a malfunction of the electronic device occurs A recovery support device EWS that displays data that supports the recovery work of the EWS is connected.

As shown in FIG. 2, the restoration support device EWS analyzes and investigates the cause of a failure of the electronic device when it occurs, and displays a cause and a measure as in the prior art. A second recovery support control system that automatically displays a recovery operation on a screen without referring to an instruction manual or a drawing, and a third system that always provides the latest program to an electronic device without loading an old program by mistake. And a recovery support control system.

The first recovery support control system detects a failure of the electronic device via the data transmission device LAN when a failure occurs in the electronic device connected to the data transmission device LAN, and also detects the failure of the detected electronic device. A data reception processing unit 1 for requesting the device to transmit diagnostic information, and receiving and processing the diagnostic information returned based on the transmission result; and a diagnosis received by the data reception processing unit 1. A diagnostic information collecting unit 2 that collects information and classifies and stores the information for each type of board of the electronic device, and analyzes the diagnostic information collected by the diagnostic information collecting unit 2 to determine the cause, and determines the cause of the failure and A diagnostic information analysis unit 3 that performs processing for displaying a treatment, and a recovery support screen display unit 4 that displays a failure cause and a treatment obtained by the processing by the diagnostic information analysis unit 3 It has been made.

The second recovery support control system includes the components of the first recovery support control system, and further stores a recovery procedure obtained in advance based on past experience and simulation results. 5 and calls a corresponding recovery procedure from a recovery procedure stored in the recovery procedure storage section 5 in advance based on the failure cause and the treatment result analyzed by the diagnostic information analysis section 3 and displays the same on the recovery support screen display section 4. The recovery procedure determination processing unit 6 to be displayed and, when the restoration procedure determination processing performed by the recovery procedure determination processing unit 6 requires loading of a program, receiving a download instruction by a touch operation or the like on the recovery support screen display unit 4 Program storage unit 7 for downloading a program to an electronic device
And is constituted by.

Next, the third recovery support control system includes a program update request section 8 for requesting a program to be periodically updated so that the latest program can be used when the program is required to be loaded, and a program storage section. A data transmission processing unit 9 for transmitting not only a program for downloading to the electronic device from the unit 7 but also transmitting detailed diagnostic information and data for requesting the latest program;
And a data reception processing unit 1 for reading the latest program sent through the data transmission device LAN under transmission of request data, and a program update for classifying and storing the read latest program in a corresponding area of the program storage unit 7. And a processing unit 10.

Next, FIGS. 3 and 4 show the recovery support device EW.
FIG. 5 is a diagram showing an embodiment of the recovery support screen display unit 4 in S, wherein the first recovery support control system shown in FIGS.
The cause and action of the failure as shown in are displayed.

In this display example, the message "The main processor (MMPU1) board of the programmable controller PC is out of order, please replace it" is displayed.
(Shape) It is possible to prepare spare parts for the substrate.

Next, in the second recovery support control system, a spare board is prepared under the indication of the cause of failure and the action by the first recovery support control system. Steps are displayed.

That is, the display items (1) and (2) shown in FIGS. 3 and 4 indicate the locations and setting methods of various switches that require setting of the spare board, and (3) to (3). Since the item described in (8) indicates the replacement method of the spare board, the board can be replaced without error if the recovery work is performed according to the displayed matter.

Further, in the third restoration support control system,
The PC main processor (MMPU1 type) board indicates that a program needs to be loaded. Touch "Program loading" and then touch "YES" to load the program and complete loading. Sometimes a completed comment is displayed. Then, in (10), by performing the display operation, all the recovery operations can be completed.

Next, the operation of the recovery support apparatus configured as described above will be described with reference to FIGS. First, as shown in FIG. 5, the recovery support device EWS periodically transmits data requesting the latest program data from the data transmission device 9 and transmits the corresponding program from the controller PC or the display device CRT based on the data. The data is received by the reception processing unit 1, stored in the program storage unit 7 via the program update processing unit 10, and prepared so as to cope with a board failure (ST1).

In this state, abnormal data is transmitted from the electronic device, or the data on the data transmission device LAN is read by the data reception processing unit 1 periodically or when necessary based on the instruction of a maintenance person. When it is determined that a malfunction has occurred in the electronic device (ST2), data is received from the malfunctioning electronic device (ST3), and the data of the malfunctioning electronic device is the controller PC or the display device CRT. It is determined whether the input / output device is the input / output device PIO (ST4), and the process proceeds to the next step.

If it is determined in step ST4 that the controller PC is defective, the data reception processing unit 1
Requests the data transmission processing unit 9 to transmit the diagnostic information of the controller PC. Here, after requesting the diagnostic information from the data transmission processing unit 9, the controller PC
Is collected by the diagnostic information collection unit 2 via the data reception processing unit 1 and stored in its own storage means (not shown) (ST5).

When the collection of the diagnostic information is completed,
The diagnostic information analyzer 3 analyzes the diagnostic information of the controller PC. In the analysis of the diagnostic information, since the diagnostic information shown in FIGS. 13 and 14 sent from the electronic device is sent, the analysis is performed using, for example, an engineering tool or a failure analysis program, and the analysis result is obtained. The corresponding cause of failure and action data are read out from the storage means (not shown) based on the data and displayed on the recovery support screen display unit 4 (ST6). It goes without saying that various analysis methods by the diagnostic information analysis unit 3 can be considered. For example, if the diagnostic information includes, for example, information relating to a level indicating a state of a failure without using a failure analysis program, inference is performed from the level information and knowledge previously stored in a storage unit, and a failure cause is determined. May be determined.

In step ST6, the restoration procedure determination processing section 6 reads the restoration procedure from the restoration procedure storage section 5 based on the failure cause and the treatment result analyzed by the diagnosis information analysis section 3, and provides the restoration support. It is displayed on the screen display unit 4.

At this time, for example, when the cause of failure and the action are a board replacement instruction of the controller PC as shown in FIG. 3 and step ST7, the recovery procedure determination processing unit 6 stores the board replacement recovery procedure from the recovery procedure storage unit 5. Is read out and displayed on the recovery support screen display unit 4.

Here, the maintenance staff replaces the faulty board of the controller PC according to the instruction on the display screen, loads the corresponding program in the program storage unit 7 to the corresponding electronic device (ST8), and confirms whether the restoration is completed (ST9). ).
If the restoration is not completed in step ST9, it is reconfirmed whether the restoration was performed according to the restoration procedure (ST1).
1) Return to step ST7 and execute the work again.

If it is not necessary to replace the board in step ST7, a recovery procedure corresponding to the cause of the failure and the measure is displayed. According to the recovery procedure, the cause of the failure is repaired, and the controller PC is started. Raise (ST
10). When the restoration is completed, the process ends.

Next, if the data of the defective electronic device is not the controller PC in step ST4, the process proceeds to step ST21 in FIG. 6 to determine whether or not the display device CRT is defective.

Here, when it is determined that the display device CRT is defective, the data reception processing unit 1 transmits the diagnostic information of the display device CRT to the data transmission processing unit 9 as in the case of the failure of the controller PC. Make a request to do so. After requesting the diagnostic information, the display device CRT of the electronic device
Is collected by the diagnostic information collecting unit 2 (ST22), and the diagnostic information is stored in the storage unit for each type of substrate constituting the display device CRT.

When the collection of the diagnostic information is completed as described above, the diagnostic information analyzer 3 continuously analyzes the diagnostic information of the display device CRT. In the analysis of the diagnostic information, since the diagnostic information shown in FIGS. 13 and 14 sent from the electronic device is sent, the analysis is performed using, for example, an engineering tool or a failure analysis program, and the analysis result is obtained. Then, the corresponding failure cause and action data are read out from the storage means on the basis of the data and displayed on the recovery support screen display section 4 (ST23). It goes without saying that various analysis methods by the diagnostic information analysis unit 3 can be considered. For example, if the diagnostic information includes, for example, information relating to a level indicating a state of a failure without using a failure analysis program, inference is performed from the level information and knowledge previously stored in a storage unit, and a failure cause is determined. May be determined.

In this step ST23,
The recovery procedure determination processing section 6 reads out the recovery procedure from the recovery procedure storage section 5 and displays it on the recovery support screen display section 4 based on the failure cause and the treatment result analyzed by the diagnostic information analysis section 3.

At this time, for example, when the cause of the failure and the action are the board replacement instruction of the display device CRT as shown in step ST24, the recovery procedure determination processing unit 6 reads the board replacement procedure from the restoration procedure storage unit 5. Displayed on the recovery support screen display unit 4.

Here, after replacing the defective board of the display device CRT in accordance with the instructions on the display screen, the maintenance person loads the relevant program in the program storage unit 7 to the relevant electronic device (ST25), and confirms whether or not the recovery is completed (ST25). ST26).
If the restoration is not completed in step ST26, it is reconfirmed whether the restoration was performed according to the restoration procedure (ST2).
8) Return to step ST24 again to carry out the work again.

If it is not necessary to replace the substrate in step ST24, a recovery procedure corresponding to the cause of the failure and the countermeasure is displayed. After repairing the cause of the failure according to the recovery procedure, the display device CRT is replaced. It is restarted (ST27). When the restoration is completed, the process ends.

If it is determined in step ST21 that the input / output device is not the display device CRT, the process proceeds to step 31 to determine that the input / output device PIO is defective. In the case of a failure of the input / output device PIO, the data reception processing unit 1 sends the data transmission processing unit 9 the input / output device P
Request to send IO diagnostic information. After the request for the diagnostic information, the diagnostic information sent from the input / output device PIO is collected by the diagnostic information collection unit 2 (ST32), and the diagnostic information is stored in the storage unit for each type of board constituting the input / output device PIO. I do.

When the collection of the diagnostic information is completed as described above, the diagnostic information analyzing section 3 analyzes the diagnostic information of the display device CRT. In the analysis of the diagnostic information, since the diagnostic information shown in FIGS. 13 and 14 sent from the electronic device is sent, the analysis is performed using, for example, an engineering tool or a failure analysis program, and the analysis result is obtained. The corresponding failure cause and action data are read out from the storage means 11 based on the data and displayed on the recovery support screen display section 4 (ST33).

In this step ST33,
The recovery procedure determination processing section 6 reads the recovery procedure from the recovery procedure storage section 5 based on the failure cause and the treatment result analyzed by the diagnostic information analysis section 3, and displays the recovery procedure on the recovery support screen display section 4.

At this time, for example, when the cause of failure and the action are the board replacement instruction of the input / output device PIO as shown in step ST34, the recovery procedure determination processing unit 6 reads the board replacement recovery procedure from the recovery procedure storage unit 5. It is read out and displayed on the recovery support screen display unit 4.

Here, after replacing the defective board of the display device CRT in accordance with the instructions on the display screen, the maintenance staff sets the input / output device P
The IO is restarted (ST35), and it is confirmed whether the recovery is completed (ST36). If the restoration has not been completed in step ST36, it is reconfirmed whether the restoration has been performed according to the restoration procedure (ST38), and the process returns to step ST34 to perform the operation again.

If it is not necessary to replace the board in step ST34, a recovery procedure corresponding to the cause of the failure and the countermeasure is displayed. The CRT is restarted (ST37). When the restoration is completed, the process ends.

Therefore, according to the configuration of the above-described embodiment, conventionally, diagnostic information is collected by a human system, the collected diagnostic information is analyzed and the cause is determined, and then a treatment method is considered. Since the cause and action are automatically displayed, even a beginner can easily understand the cause and action of the failure, and can prepare the recovery equipment at an early stage, thereby contributing to a significant reduction in recovery time. .

In the past, the maintenance work was performed by the maintenance staff while looking at the operation manual and the drawings. However, the recovery procedure is actually displayed. There is no leakage, and recovery work can be performed in a short time.

Further, regarding the loading of the program, the recovery process can always be executed by using the latest program, and the latest program can be downloaded to the electronic device. Therefore, erroneous input of the old program and erroneous input operation can be prevented. Can be easily restored.

In the above embodiment, the data transmission / reception device LAN for both transmission and reception is provided. However, for example, as shown in FIG. 8, the data transmission device LAN1 for transmission only and the data transmission device LAN2 for reception only are divided and the data is transmitted. A configuration for transmitting and receiving may be used. FIG. 9 shows the data transmission devices LAN1, L
The connection relationship between AN2 and the recovery support device EWS is shown.

The electronic device includes a data transmission device, an input / output device, a controller, and a display device, but is not particularly limited to these components.
In addition, the present invention can be implemented with various modifications without departing from the scope of the invention.

[0056]

As described above, according to the present invention, the following effects can be obtained. According to the first aspect of the present invention, it is possible to find out the cause of a defect and to find a method of solving the problem earlier than in the past, and to display the cause and the measure, so that even a beginner can easily determine the cause of the trouble and the measure. The recovery equipment can be prepared at an early stage, which in turn contributes to a significant reduction in recovery time.

Next, according to the second aspect of the present invention, a recovery operation is displayed in addition to the cause of the failure and the action, so that the same effect as that of the first aspect can be obtained. Good recovery work can be performed. this is,
Especially effective for beginners. Further, according to the third aspect of the present invention, the latest program can be easily taken in, and erroneous input of the program into the electronic device, input operation error, and the like can be easily prevented.

[Brief description of the drawings]

FIG. 1 is a diagram showing a basic configuration of a control device to which the present invention is applied.

FIG. 2 is a block diagram showing an embodiment of a recovery support device according to the present invention.

FIG. 3 is a view showing a screen display example of the device of the present invention when a failure occurs in an electronic device.

FIG. 4 is a diagram showing an example of a screen display of the device of the present invention when a failure occurs in the electronic device.

FIG. 5 is a flowchart illustrating the operation of the device of the present invention.

FIG. 6 is a flowchart illustrating the operation of the apparatus of the present invention.

FIG. 7 is a flowchart illustrating the operation of the apparatus of the present invention.

FIG. 8 is a system configuration diagram illustrating another embodiment of the device of the present invention.

FIG. 9 is a block diagram of the device of the present invention connected to the system configuration of FIG. 8;

FIG. 10 is a configuration diagram of a control device to which a conventional electronic device is applied.

FIG. 11 is a diagram showing an example of a substrate arrangement of each component of the electronic device.

FIG. 12 is a diagram illustrating a conventional method for collecting diagnostic information of a defective board.

FIG. 13 is a diagram showing a description example of diagnostic information collected in the past.

FIG. 14 is a diagram showing a description example of conventionally collected diagnostic information.

[Explanation of symbols]

LAN ... data transmission device, PIO ... input / output device, PC ...
Programmable controller, CRT… Display device,
EWS recovery support device, 1 data reception processing unit, 2 diagnostic information collection unit, 3 diagnostic information analysis unit, 4 recovery recovery screen display unit, 5 recovery procedure storage unit, 6 recovery procedure determination processing unit, 7 Program storage unit, 8 Program update request unit, 9 Data transmission processing unit, 10 Program update processing unit.

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Claims (3)

(57) [Claims] 1. A data in recovery support apparatus which performs recovery assistance for defects of each target electronic apparatus connected to the transmission line, wherein any one of the data sent through the data transmission line from the target electronic device 1 When receiving the fault data of the two target electronic devices, requesting the diagnostic information of the board related to the fault target electronic device via a data transmission processing unit, and sending the fault target electronic device based on the request. Data reception processing means for receiving diagnostic information of each board related to the diagnostic information collecting means for collecting diagnostic information received by the data reception processing means and storing the diagnostic information for each type of board constituting the failure target electronic device means and, to investigate the cause by analyzing the diagnostic information collected by this diagnostic information collection means, the failure causes and treatment and recovery support screen Recovery support device being characterized in that a diagnostic information analyzing means for displaying the radical 113. 2. The recovery support device according to claim 1, wherein a recovery procedure storing means for preliminarily storing recovery procedures corresponding to various failure causes and actions, and a program collected from the faulty electronic device. A program storage unit to be saved, a recovery procedure is determined from the failure cause and the action analyzed by the diagnostic information analysis unit, a corresponding recovery procedure is read from the recovery procedure storage unit, and displayed on a recovery support screen display unit, A recovery procedure determining means for reading the program from the program storage means and instructing the target electronic device to download the program when loading of the program is necessary from the recovery procedure; . 3. The recovery support apparatus according to claim 1, wherein a program storage means for storing a program collected from the target electronic device, and wherein each of the target electronic devices is periodically stored in order to always store the latest program. A program update requesting means for requesting an apparatus for an update program for various substrates; a data transmission processing means for transmitting request data of an update program by the program update request means; and After receiving the update program sent from each target electronic device via the data transmission line by the data reception processing unit, the data reception processing unit adds a program update processing unit to be stored in a corresponding area of the program storage unit. At the time of recovery processing in the procedure determination processing means, the latest program is stored from the program storage means. Recovery support apparatus according to claim that it has available for download a read out.