JPH08106409A - Saving and storing method for ras data - Google Patents

Abstract

PURPOSE: To provide the RAS data saving and storing method which does not lose important RAS data no matter how many times a control arithmetic unit is reset and started. CONSTITUTION: This method is equipped with an RAS file 7 consisting of a serious fault factor RAS file 71 containing serious fault RAS data and a nonserious fault factor RAS file 72 containing nonserious fault RAS data, and a last RAS file 8 wherein the RAS data of the RAS file 7 are saved when a system is started; and RAS data 61-6n which are generated when the control arithmetic unit is in operation are classified into the serious RAS data and unserious fault RAS data, which are stored in the serious fault factor RAS file 71 and unserious fault RAS file 72. When the serious fault RAS data are present in the serious fault factor RAS file 71 when the control arithmetic unit is reset and started, all the data in the RAS file 7 are saved in the last RAS file 8 and when not, the data in the RAS file 7 are saved in the last RAS file 8.

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 specifically, the present invention relates to a method for saving and storing RAS data in which serious RAS data does not disappear.

[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 view for explaining a conventional method of saving and storing RAS data. In FIG.
Control arithmetic unit 1 is a master unit 2 and a slave unit
The master unit 2 consists of 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 memory 2B, and a slave unit
31 to 3 m is, for example, an interface circuit 41 with an external circuit.
It consists of an input / output device with ~ 4m and a transmission control circuit for connecting to peripheral devices. The control calculation device 1 performs a required control calculation process according to a program installed in advance. RAS data including a failure that occurs during the control arithmetic processing operation is stored in the RAS file. That is, the master unit 2 has a fixed cycle in which the RAS data of each slave unit 31 to 3m including itself and the state in the external interface circuits 41 to 4m, for example, the input / output signal range over, Check status data such as circuit disconnection due to connector drop (hereinafter collectively referred to as RAS data including 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 the master unit 2 of its own.
Each time RAS data 61 to 6n of ˜3 m is generated, it is sequentially written in the RAS file 7. Reference numeral 8 is the previous RAS file. The method of saving and storing the RAS data in the prior art is as follows: (1) Store in the RAS file 7 as an initial process when the control arithmetic unit 1 is reset / started and restarted. The RAS data of the control arithmetic unit 1 before the reset start is written and saved in the RAS file 8 last time, then (2) the RAS file 7 is cleared, and (3) the control arithmetic unit 1 The various RAS data of the self-diagnosis result based on the diagnostic program installed in advance at the time of the reset start is stored in this RAS file 7, and (4) it is generated during the subsequent control arithmetic processing operation of the control arithmetic unit 1. The RAS data including the failure to be stored is stored in this RAS file 7.

[0004]

In the above-mentioned prior art,
At the time of reset start of the control arithmetic unit, the RAS data was saved to the RAS file last time by the initial processing as it is, so the control arithmetic unit is reset and restarted many times. Then, each time, various RAS data of the self-diagnosis result by the diagnostic program at startup are sequentially written in the RAS file, and the RAS data at the previous startup is sequentially written in the previous RAS file. When the RAS file becomes full the last time, the RAS data at startup is newly written from the oldest data location, so if you perform the reset start 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 erased.

The present invention has been made in view of the above points, and an object thereof is to solve the above-mentioned problems and to perform important R operation no matter how many times the reset start of the control arithmetic unit is performed.
It is to provide a method of saving and storing RAS data in which AS data is not lost.

[0006]

In order to achieve the above object, in the present invention, a control operation comprising a master unit including 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 has a RAS file including a serious failure factor RAS file storing serious failure RAS data and a minor failure factor RAS file storing minor failure RAS data. Last RA that can save RAS data of RAS file at system startup
The RAS data, which has a memory area for S files and is generated during operation as a control arithmetic unit, is a serious failure RAS data.
Data and light failure RAS data are classified and stored in the heavy failure factor RAS file or the light failure factor RAS file, and when the control arithmetic unit is reset / started, the heavy failure factor R
R when serious failure RAS data exists in AS file
All the RAS data of major failures and minor failures in the AS file are saved to the RAS file last time, and the RAS data checked at the time of this reset / start is stored in the RAS file, and the major failure RAS file contains the major failure RAS. When there is no data, the data in the RAS file is not saved in the RAS file last time, but the RAS data checked at the time of this reset start is stored in the RAS file.

[0007]

The RAS data generated during the operation as the control arithmetic unit is divided into the major failure RAS data and the minor failure RAS data by the above-mentioned means, and the major failure RAS data is major failure. Factor Stored in RAS file. When resetting / starting the control arithmetic unit, it is checked whether or not the serious failure RAS data exists in the serious failure factor RAS file. If the serious failure RAS data exists, all the RAS data in the RAS file are checked. -Save the data in the RAS file last time.

Once the RAS data in the RAS file has been saved to the RAS file the last time, there is no previous serious fault RAS data in the control arithmetic unit operating in the major fault factor RAS file. Even if the reset start is repeated many times, the RAS data at the time of startup at the time of reset start is not written in the RAS file last time.

[0009]

FIG. 2 is an explanatory view for explaining a method of saving and storing RAS data according to an embodiment of the present invention, and FIG.
It is a flowchart when storing in an AS file,
The same functional members corresponding to FIG. 4 are denoted by the same reference numerals. FIG. 1 is a block circuit diagram of a general control arithmetic unit used for explaining the present invention and the prior art, and the control arithmetic unit 1 will be briefly described. In FIG. 1, the control arithmetic unit 1
Is a master that monitors and controls the entire control processor.
It is composed of a unit 2, a slave unit 31 to 3 m, and an internal bus 5 for exchanging data between the units 2 and (31 to 3 m). The master unit 2 is at least MPU2A
The slave units 31 to 3m include an input / output device including interface circuits 41 to 4m with an external circuit, and communication / arithmetic processing with 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 a required control arithmetic processing according to a program installed in advance, and the RAS data 61 to 6n including the failure that occurred during operation as the control arithmetic unit 1 is 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. The previous RAS that can save the RAS data in the RAS file 7 as needed when the system is started up by resetting and starting
The file 8 is formed in a part of the memory area of the memory 2B.

In this structure, the master unit 2 and each slave unit 31 are in operation as the control arithmetic unit 1.
RAS data 61 to 6n generated at ~ 3m have RAS data (61 to 6n) in each unit,
Unit 2 collects these RAS data 61-6n.
Important RAS data that causes the control processor 1 to go down is set in the major failure factor RAS file 71, and other RAS data is set in the minor failure factor RAS file 72. Here, a serious failure R that causes the control arithmetic unit 1 to go down
The AS data corresponds to, for example, a failure related to the hardware of the master unit 2 or the slave units 31 to 3m, or a failure that is usually difficult to reproduce due to a transient failure. The light failure RAS data is, for example, at the external interface (corresponding number of 41 to 4 m) of the slave unit corresponding to the input / output device, such as circuit disconnection due to input / output signal range over or connector dropout. Faults with high reproducibility, such as status data, fall under this category.

For example, when the control arithmetic unit 1 is reset / started and restarted for some reason such as the control arithmetic unit being stopped due to a failure, the control arithmetic unit 1 performs initial processing, and at this time, a serious failure occurs. The factor RAS file 71 is checked to determine whether or not the major fault RAS file 71 contains major fault RAS data. Major failure factor When the major failure RAS data exists in the RAS file 71, all the major failures and minor failures in the RAS file 7 are recorded.
The AS data is saved and stored in 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 is stored in the RAS file 7. Cause of major failure Major failure R in RAS file 71
If the AS data does not exist, the RAS data in the RAS file 7 is not saved to the RAS file 8 last time, and the RAS data inspected at the time of this reset start is checked.
Data in the RAS file 7.

FIG. 3 is a flowchart for storing the RAS data 61 to 6n in the RAS file 7, and the method for saving and storing the RAS data will be described below with reference to FIG. In FIG. 3, the MPU 2A detects the RAS generated in each slave unit 31 to 3 m including itself in Step 1.
Collect data 61-6n. Next, in Step 2, is the control arithmetic unit 1 reset start? Find out. Reset start
If Yes, the process shifts to Step 3 and is there a major failure RAS data in the major failure factor RAS file 71? Find out. Major failure factor RAS file 71 has major failure RAS data Yes
If so, the process proceeds to Step 4, and all the RAS data stored in the RAS file 7 is saved and stored in the RAS file 8 last time. Next, in Step 5, the RAS data of the self-diagnosis result at the time of reset start is stored in the RAS file 7.

In step 3, if there is a serious failure RAS data in the RAS file 71 of the major failure, the process proceeds to step 5 if NO.
The RAS data of the self-diagnosis result at the time of reset start is stored in the RAS file 7 without saving the RAS data in the RAS file 7 to the RAS file 8 last time.
When the reset start No is set 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 of saving and storing RAS data, when the control arithmetic unit 1 is reset and started, first, at the first reset and start, the serious failure factor RAS.
When the file 71 has serious failure RAS data, this RA
The RAS data in S file 7 is the last RAS file 8
The RAS data based on the self-diagnosis program at the start of reset start is stored in the previous time because there is no serious failure RAS data in the serious failure factor RAS file 71 in the second and subsequent reset starts. Reset the control arithmetic unit 1 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 does not disappear no matter how many times the start is performed.

[0016]

According to the present invention, even if the control arithmetic unit is reset-started and restarted several times, the important RAS data for bringing down the control arithmetic unit is the previous RA.
It remains as S, and the effect that it is easy to investigate the cause when a failure occurs is obtained.

[Brief description of drawings]

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

FIG. 2 is an explanatory 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 illustrating a method of saving and storing RAS data according to a conventional technique.

[Explanation of symbols]

 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 Major failure factor RAS file 72 Minor failure factor RAS file 8 Previous RAS file

Claims (1)

[Claims] 1. A method for saving and storing previous RAS data in a control arithmetic unit, comprising: a master unit including a microprocessor unit and a memory; a slave unit; and an internal bus. A RAS file consisting of a major failure factor RAS file storing failure RAS data and a minor failure factor RAS file storing minor failure RAS data; and a RAS file of the RAS file at system startup.
RAS data generated during operation as a control arithmetic unit is equipped with a memory area for the previous RAS file that can save data.
It is divided into major failure RAS data and minor failure RAS data,
The major failure factor RAS file or the minor failure factor R
When the RAS data is stored in the AS file and the control operation unit is reset / started, and if the serious failure RAS data exists in the serious failure factor RAS file, all the RAS data of the major failure and the minor failure in the RAS file are stored. -The data is saved to the RAS file last time, the RAS data inspected at the time of this reset / start is stored in the RAS file, and when the serious failure RAS data does not exist in the serious failure factor RAS file, Without saving the data in the RAS file to the previous RAS file, the RAS data inspected at the time of this reset start is written to the RAS file.
A method for saving and storing RAS data, characterized by storing in a file.