JP3211584B2 - Saving and storing RAS data - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control arithmetic unit RAS.
More particularly, the present invention relates to a method for saving and storing RAS data in which a severely failed RAS data is not lost.

[0002]

2. Description of the Related Art FIG. 1 is a block diagram of a general control arithmetic unit, and FIG. 4 is an explanatory diagram for explaining a method of saving and storing RAS data in the prior art. In FIG.
The control arithmetic unit 1 includes a master unit 2 and a slave unit.
The master unit 2 comprises 31 to 3 m and an internal bus 5 for organically connecting these units and exchanging data.
At least a microprocessor unit (hereinafter MPU)
2A) and a memory 2B, and a slave unit.
31 to 3 m are, for example, an interface circuit 41 with an external circuit.
It is composed of an input / output device having up to 4 m, a transmission control circuit for connecting with peripheral devices, and the like. The control operation device 1 performs necessary control operation processing according to a program installed in advance. The RAS data including the trouble that occurs during the control operation processing operation is stored in the RAS file. That is, the master unit 2 periodically updates the RAS data of the slave units 31 to 3m including itself, the state of the external interface circuits 41 to 4m, such as overrange of input / output signals, and the like. Check status data such as circuit disconnection due to disconnection of the connector (hereinafter referred to as RAS data including the above RAS data and status data)
These RAS data are collected and stored in the RAS file allocated to a part of the memory 2B.

FIG. 4 is an explanatory diagram for explaining a method of saving and storing RAS data in the prior art. As described above, the slave unit 31 including its own master unit 2 is used.
Each time RAS data 61 to 6n of .about.3 m is generated, they are sequentially written to the RAS file 7. Reference numeral 8 denotes a previous RAS file. In the prior art, the method of saving and storing RAS data is as follows: (1) Store in the RAS file 7 as initial processing when resetting and starting the control processing device 1 and restarting it. The RAS data of the control arithmetic unit 1 before the reset start is written and saved in the previous RAS file 8, and then (2) the RAS file 7 is cleared, and (3) the RAS file 7 Various RAS data of a self-diagnosis result based on a pre-installed diagnosis program performed at the time of a reset start are stored in the RAS file 7, and (4) generated during the control operation processing operation of the control operation device 1 thereafter. The RAS data including the failure that occurs is stored in the RAS file 7.

[0004]

In the above-mentioned prior art,
At the time of reset start of the control arithmetic unit, since the RAS data was saved as it was in the previous RAS file by the initial processing, the control arithmetic unit is reset start and restarted many times. Each time, various RAS data of the self-diagnosis result by the diagnostic program at the time of startup are sequentially written in the RAS file, and the RAS data at the time of the immediately preceding startup are sequentially written in the previous RAS file. When the RAS file becomes full last time, RAS data at the time of start-up newly written from the oldest data location is written, so if the reset start is performed many times,
There is a possibility that important RAS data of the control arithmetic unit written in the RAS file before the reset start operation is performed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to solve the above-mentioned problems and to provide an important R even if the control arithmetic unit is reset and started many times.
An object of the present invention is to provide a method for saving and storing RAS data in which AS data does not disappear.

[0006]

In order to achieve the above object, according to the present invention, there is provided a control unit comprising a master unit having a microprocessor unit and a memory, a slave unit, and an internal bus. In the method of saving and storing the previous RAS data of the device, the memory stores a RAS file including a major failure factor RAS file for storing major failure RAS data and a minor failure factor RAS file for storing minor failure RAS data. RAS data saved in RAS file at system startup
The RAS data generated during operation as a control arithmetic unit is provided with
When the control arithmetic unit is reset / started, the data is stored in the RAS file or the RAS file.
If there is a serious failure RAS data in the AS file, R
All the RAS data of the major fault and the minor fault in the AS file are saved and saved in the RAS file last time, the RAS data is deleted from the RAS file, and the RAS data inspected at the time of the present reset / start. Is stored in the RAS file, and the serious failure RAS file is
If there is no data, the RAS data inspected at the time of the current reset / start is stored in the RAS file without saving the data in the RAS file in the previous RAS file.

[0007]

According to the above-mentioned constitutional means, RAS data generated during operation as a control arithmetic unit is classified into serious fault RAS data and light fault RAS data. The factor is stored in the RAS file. When resetting / starting the control arithmetic unit, it is checked whether or not the serious failure RAS data exists in the RAS file for the major failure, and if the serious failure RAS data exists, all the RAS data in the RAS file are examined. Data in the previous RAS file.

[0008] Once the RAS data in the RAS file has been saved to the previous RAS file, there is no major fault RAS data during operation of the control arithmetic unit in the past in the RAS file of the major fault cause. Even if the reset start is repeated many times, the RAS data at the time of the start at the time of the reset start is not written in the previous RAS file.

[0009]

FIG. 2 is a diagram for explaining a method for saving and storing RAS data according to one embodiment of the present invention. FIG.
It is a flowchart at the time of storing in an AS file,
The same reference numerals are given to the same functional members corresponding to FIG. FIG. 1 is a block circuit diagram of a general control operation device used for explaining the present invention and the conventional technique, and the control operation device 1 will be briefly described. In FIG. 1, a control arithmetic unit 1
Is a master for monitoring and controlling the entire control arithmetic unit.
It comprises a unit 2, slave units 31 to 3m, and an internal bus 5 for exchanging data between the units 2, (31 to 3m). Master unit 2 must have at least MPU2A
And the memory 2B, and the slave units 31 to 3m perform, for example, communication / arithmetic processing with an input / output device having an interface circuit 41 to 4m with an external circuit, and other devices not shown here. It is composed of peripheral devices.

A description will be given with reference to FIGS. The control arithmetic unit 1 performs required control arithmetic processing in accordance with a program installed in advance, and RAS data 61 to 6n including faults occurring during operation as the control arithmetic unit 1 are allocated to a part of the memory 2B. Stored in the RAS file 7. Here, the RAS file 7 is composed of a major failure factor RAS file 71 for storing major failure RAS data and a minor failure factor RAS file 72 for storing minor failure RAS data. When the system is started by resetting / starting the RAS, the RAS data of the RAS file 7 can be saved if necessary.
The file 8 is formed in a part of the memory area of the memory 2B.

In such a configuration, the master unit 2 and each slave unit 31 are operated while the control arithmetic unit 1 is operating.
RAS data 61 to 6n generated up to 3 m have RAS data (61 to 6n) in each unit, and
Unit 2 collects these RAS data 61-6n.
Important RAS data such that the control arithmetic unit 1 goes down is set in the RAS file 71 for a major failure, and other RAS data is set in the RAS file 72 for a minor failure. Here, a serious failure R such that the control operation device 1 goes down
The AS data includes, for example, a fault relating to the hardware of the master unit 2 or the slave units 31 to 3 m, a fault which is difficult to reproduce because of a transient fault, and the like. Minor fault RAS data is output from the external interface (corresponding number of 41 to 4 m) of the slave unit corresponding to the input / output device, such as overrange of the input / output signal or disconnection of the connector due to disconnection of the circuit. Faults with high reproducibility, such as status data, are applicable.

For example, when the control operation device 1 is reset / started and restarted for some reason such as a stop of the control operation process due to a fault, the control operation device 1 performs an initial process, The cause RAS file 71 is checked, and it is checked whether or not the serious failure RAS data exists in the serious failure cause RAS file 71. When the serious failure RAS data is present in the major failure cause RAS file 71, all of the major failures and minor failures in the RAS file 7 are stored.
The AS data is saved back to the RAS file 8 last time. Then, various RAS data of the self-diagnosis result by the diagnostic program at the time of this reset / start are stored in the RAS file 7. Serious failure R in the RAS file 71
If there is no AS data, the RAS data in the RAS file 7 is checked at the present reset / start without saving the RAS data in the RAS file 7 to the previous RAS file 8.
Is stored in the RAS file 7.

FIG. 3 is a flowchart when the RAS data 61 to 6n is stored in the RAS file 7. A method of saving and storing the RAS data will be described below with reference to FIG. In FIG. 3, the MPU 2A generates the RAS generated in each of the slave units 31 to 3m including itself in Step 1.
Data 61 to 6n are collected. Next, in Step 2, is the control arithmetic unit 1 reset-started? Find out. Reset start
If yes, proceed to Step 3 and check if there is any serious failure RAS data in the serious failure factor RAS file 71. Find out. Yes, there is a serious failure RAS data in the serious failure cause RAS file 71
In the case of, the process proceeds to Step 4 and all the RAS data stored in the RAS file 7 is saved and saved in the previous RAS file 8. Next, the process proceeds to Step 5, where the RAS data of the self-diagnosis result at the time of reset start is stored in the RAS file 7.

If it is determined in step 3 that there is no serious failure RAS data in the serious failure cause RAS file 71, the process proceeds to step 5,
The RAS data of the self-diagnosis result at the time of the reset start is stored in the RAS file 7 without saving the RAS data in the RAS file 7 to the previous RAS file 8.
If the reset start is No in Step 2, the RAS data 61 to 6n collected by the MPU 2A are sequentially stored in the RAS file 7.

According to the above-mentioned method for saving and storing the RAS data, when the control arithmetic unit 1 is reset and started, first, at the time of the first reset start, the serious failure factor RAS is generated.
When the file 71 contains RAS data of a major failure, this RA
The RAS data in the S file 7 is the last RAS file 8
In the second and subsequent reset starts, since there is no serious failure RAS data in the serious failure cause RAS file 71, the RAS data based on the self-diagnosis program at the start of the reset start is stored in the previous time. Without writing to the RAS file 8,
It is possible to provide a method for saving and storing RAS data in which important RAS data is not lost even if the start is repeated.

[0016]

According to the present invention, even if the control arithmetic unit is reset / started and re-started several times, important RAS data such as to bring down the control arithmetic unit is stored in the previous RA.
The effect remains as S, and it is easy to investigate the cause when a failure occurs.

[Brief description of the drawings]

FIG. 1 is a block diagram of a control arithmetic unit.

FIG. 2 is a diagram illustrating a method for saving and storing RAS data according to an embodiment of the present invention;

FIG. 3 is a flowchart for storing RAS data in a RAS file;

FIG. 4 is an explanatory diagram for explaining a method of saving and storing RAS data in the related art.

[Explanation of symbols]

 Reference Signs List 1 control arithmetic unit 2 master unit 2A microprocessor unit 2B memory 31-3m slave unit 41-4m external interface 5 internal bus 61-6n RAS data 7 RAS file 71 severe failure factor RAS file 72 minor failure factor RAS file 8 previous RAS file

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G06F 11/34 G06F 11/14 310 G06F 12/00 531

Claims (1)

(57) [Claims] 1. A method for saving and storing previous RAS data in a control arithmetic unit including a master unit including a microprocessor unit and a memory, a slave unit, and an internal bus. An RAS file including a major failure factor RAS file for storing failure RAS data and a minor failure factor RAS file for storing minor failure RAS data, and the RAS file of the RAS file at system startup.
It has a memory area with the previous RAS file that can save data, and RAS data generated during operation as a control arithmetic unit is:
It is divided into severe failure RAS data and minor failure RAS data,
The severe failure factor RAS file or the minor failure factor R
When the control arithmetic unit is reset / started, and when the serious failure RAS data is present in the RAS file, all the RAS data of the major and minor failures in the RAS file are stored. Data is saved in the previous RAS file, and all RAS data is deleted from the RAS file.
The S data is stored in the RAS file, and if no serious failure RAS data exists in the serious failure factor RAS file, the data in the RAS file is not backed up and stored in the previous RAS file. The RAS data inspected at the time of reset start of the
A method for saving and storing RAS data, wherein the method stores the RAS data in an AS file.