JP2738173B2 - Diagnostic system for stand-alone equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stand-alone apparatus comprising a plurality of functional units and having a function of diagnosing the operation of each functional unit, and more particularly to a stand-alone apparatus capable of improving diagnostic efficiency and diagnostic quality. The present invention relates to an apparatus diagnosis method.

In a stand-alone device composed of a plurality of functional units, each functional unit is controlled by a processor and executes a function assigned to each functional unit. As a single function.

A diagnostic function unit having a service processor for diagnosing the operation state of each functional unit is provided, and is configured to diagnose another functional unit in which a failure has occurred.

[0004] Therefore, by instructing the execution of a diagnosis, inputting a parameter indicating the content of the diagnosis, and instructing the diagnosis to a diagnostic function unit using a simple maintenance device for displaying the result, Although it is possible to diagnose a stand-alone device, good diagnostic efficiency and diagnostic quality are desired.

[0005]

2. Description of the Related Art FIG. 6 is a block diagram for explaining an example of the prior art, and FIG. 7 is a detailed block diagram of each functional unit.

The disk control device 3 controls the reading / writing of data from / to the disk device 4 and controls the transfer of data to / from a channel. The disk control device 3 is configured by a plurality of functional units, and includes channel adapters 6 and 7, device adapters 8 and 9, a service adapter 10, a power supply device 24, and the like.

The channel adapters 6 and 7 are configured as shown in FIG. 7 (A). The processor 15 reads out the program stored in the control
3 to receive a start I / O command from the channel 1 or 2 and transfer data to or from the channel 1 or 2, and control the common bus control circuit 14 to control the common bus 1
The data is transferred to and from another functional unit via 1.

The processor 15 of the channel adapters 6 and 7
When a diagnostic program sent from the service adapter 10 to the diagnostic bus 12 and entered through the diagnostic bus control circuit 17 is received, the diagnostic content indicated by the diagnostic program is executed, and the execution result is diagnosed by the diagnostic bus control circuit 17. The data is sent to the service adapter 10 via the bus 12.

The device adapters 8 and 9 are configured as shown in FIG. 7 (A). The processor 15 reads out the program stored in the control memory 16 and operates, and sends an instruction to the disk device 4 via the interface circuit 13. The common bus control circuit 14 controls the common bus control circuit 14 to transfer data to and from other functional units via the common bus 11.

The processor 15 of the device adapters 8 and 9
When a diagnostic program sent from the service adapter 10 to the diagnostic bus 12 and entered through the diagnostic bus control circuit 17 is received, the diagnostic content indicated by the diagnostic program is executed, and the execution result is diagnosed by the diagnostic bus control circuit 17. The data is sent to the service adapter 10 via the bus 12.

The service adapter 10 has a configuration as shown in FIG. 7 (B). The processor 20 operates by reading out a program stored in the control memory 22 and controlling the common bus control circuit 21 to operate the common bus 11. The data is transferred to and from another functional unit via

The service adapter 10 reads out a diagnostic program stored in the RAM 19 based on a diagnostic execution command input from the maintenance device 5 connected to the interface circuit 23 and a parameter for specifying the diagnostic content. The bus control circuit 18 is controlled to send a corresponding diagnostic program to the channel adapters 6 and 7 and the device adapters 8 and 9 via the diagnostic bus 12.

The maintenance device 5 issues a diagnosis instruction and displays a diagnosis result, sends a diagnosis execution command to the service adapter 10, and transmits the execution result from the channel adapters 6 and 7 and the device adapters 8 and 9. Upon reception, the execution result is sent to the maintenance device 5 via the interface circuit 23, and the maintenance device 5
Displays this diagnostic result.

The power supply 24 includes channel adapters 6 and 7
, Device adapters 8 and 9 and service adapter 10
When the service adapter 10 supplies a set value to be set in a register in the diagnostic bus control circuit 18 via the diagnostic bus 12, the channel adapters 6 and 7 and the device adapter correspond to the set value. The power supply voltage supplied to 8, 9 is changed. The diagnostic bus control circuit 18
The setting value of the register in the register is changed by the processor 20 asynchronously with the diagnostic program.

Therefore, by setting the power supply voltage, the power supply voltage set for each unit to be diagnosed can be
An execution result of the diagnostic program can be obtained. FIG. 8 is a flowchart illustrating the operation of FIG.

Steps from the maintenance device 5
When the diagnostic execution command and parameters are transmitted in (1), the service adapter 10 transmits a diagnostic program to each diagnostic function unit in step (2).

In step (3), the service adapter 10 checks whether the transmission of the diagnostic program has been completed normally. If it has been completed normally, in step (4), the service adapter 10 causes each diagnostic function unit to execute diagnosis.

After collecting the diagnostic results from each functional unit to be diagnosed in step (5), the parameters are checked in step (6).
Returning to the processing of (2), if the diagnosis has been completed, step (7)
Then, the diagnostic result is sent from each diagnostic function unit to the maintenance device 5.

Accordingly, the maintenance device 5 displays the diagnosis result in step (8). If the transmission of the diagnostic program has not been completed normally in step (3), the process proceeds to step (6).

[0020]

As described above, conventionally, a diagnosis execution environment, that is, a power supply voltage is set, a parameter is set to a loop mode, and a diagnosis is performed for a plurality of function units to be diagnosed for a long time. Let me.

Then, the characteristics of the functional unit to be diagnosed with respect to the diagnostic execution environment and the relationship with the execution time are checked to obtain statistics, and the statistics are mainly used for hardware quality control.

However, only the last diagnosis result is displayed on the maintenance device 5. Therefore, when it is desired to obtain environmental data at the time of occurrence of an error, it is necessary to set a parameter to a mode in which a diagnosis operation is stopped when an error occurs at the time of a diagnosis instruction. Furthermore, since a plurality of function units to be diagnosed are operating at the same time , any one of them
When an error occurs, it is necessary to stop the diagnosis of the other function units to be diagnosed and to change the environment to the environment at the time of the occurrence of the error and to collect data.

In this case, it is necessary to change the parameter not to the loop mode but to a mode in which the diagnosis of each function unit to be diagnosed is stopped when an error occurs.
Since the diagnosis was impossible, there is a problem that the diagnosis efficiency is low.

Further, even if the execution time of the diagnosis is measured, it is necessary that a person is attached to the apparatus, and it is difficult to determine the relationship between the environment and the error, which causes a problem that the burden on the operator is large.

Since the maintenance device 5 is connected to the interface circuit 23 of the service adapter 10, the maintenance device 5 can be separated from the device, and there is a problem that the diagnosis may be lost due to the disconnection.

In view of such a problem, the present invention changes the power supply voltage inside the service adapter 10 as the diagnosis time elapses, and logs the diagnostic content corresponding to the power supply voltage, thereby improving the diagnosis efficiency. The purpose of the present invention is to improve the diagnostic quality, reduce the burden on the operator, and prevent loss of diagnostic results.

[0027]

FIG. 1 is a block diagram for explaining the principle of the present invention. The stand-alone device 25 includes a plurality of functional units 26 to 27 and a plurality of functional units 26 to 27.
By transmitting and executing a diagnostic program and parameters , a plurality of function units 26 corresponding to the set values set by the diagnostic function unit 28 for diagnosing the operation state of each of the plurality of function units 26 to 27 are set. And a power supply device 24 for changing the power supply voltage supplied to the power supply devices 27 to 27.

Then, a clock 30 for notifying a time serving as a reference of the diagnosis history, and a storage device 2 for recording the diagnosis history
9 is provided in the storage means 29, based on the time notified by the clock 30, for each of the plurality of functional units 26 to 27, in accordance with the set power supply voltage, and the execution result of the diagnostic program. Log. Also, when an error occurs,
The configuration is such that the mode can be changed to a mode in which the diagnosis of each function to be diagnosed is stopped.

[0029]

With the above configuration, it is possible to log the contents of the diagnosis corresponding to the power supply voltage as the diagnosis time elapses, so that the diagnosis efficiency and the diagnosis quality can be improved, and the burden on the operator can be reduced. Loss of the diagnosis result can be prevented.

[0030]

FIG. 2 is a block diagram of a circuit showing an embodiment of the present invention, and FIG. 3 is a detailed block diagram of a service adapter.
FIG. 4 is a diagram illustrating an example of log data.

The same reference numerals as those in FIGS. 6 and 7 denote those having the same functions. As shown in FIG. 3, the service adapter 31 has a program stored in the control storage 32 different from that in FIG. 7B, and the processor 20 operates according to the instruction of the program stored in the control storage 32.

That is, the processor 20 of the service adapter 31 executes a diagnosis program stored in the RAM 19 based on a diagnosis execution command input from the maintenance device 5 connected to the interface circuit 23 and a parameter designating the contents of diagnosis. Readout, diagnostic bus control circuit 1
8 to transmit corresponding diagnostic programs to the channel adapters 6 and 7 and the device adapters 8 and 9 via the diagnostic bus 12.

Then, the processor 20 sets a set value in a register in the diagnostic bus control circuit 18 at regular time intervals, and sets the power supply voltage supplied from the power supply 24 to the channel adapters 6 and 7 and the device adapters 8 and 9. Change.

When receiving the execution results from the channel adapters 6 and 7 and the device adapters 8 and 9, the processor 20 creates log data in the RAM 19 as shown in FIG.

That is, the processor 20 stores 0 to
The log control code indicating the contents of diagnosis and the like is recorded using 7 bytes, and the time when the diagnosis is completed is recorded using 8 to 15 bytes by the time transmitted by the clock 30.

The execution environment indicating the power supply voltage is recorded from the set values set in the internal register of the diagnostic bus control circuit 18 using 16 to 19 bytes, and the execution of the diagnostic program is executed using 20 to 23 bytes. As a result, for example, a diagnosis end code indicating an error content or the like is recorded.

Using the 24-43 bytes, parameters at the time of a diagnostic instruction, for example, whether to loop, to terminate when an error occurs, to loop when an error occurs, a routine number and a unique number used by the routine. Record data etc.

Then, the name and version of the function unit to be diagnosed are recorded using 44 to 47 bytes, the version of the diagnostic program is recorded using 48 to 51 bytes, and the diagnosis is performed using 52 to 55 bytes. The number of loops is recorded, and the time at which the diagnosis is started is recorded by the time transmitted from the clock 30 using 56 to 63 bytes.

Such log data is created for each functional unit at the end of each diagnosis, and is written in the log storage area of the RAM 19. When a diagnosis end code is created at the end of the diagnosis, an instruction from the maintenance device 5
The diagnostic end codes are sequentially read out and sent to the maintenance device 5 via the interface circuit 23.

Therefore, the maintenance device 5 displays this diagnosis result. The log data can be read out at any time in accordance with an instruction from the maintenance device 5.

FIG. 5 is a flowchart for explaining the operation of FIG. FIG. 5 is a flow chart of FIG.
Steps (1) to (12) from the maintenance device 5 to the service adapter 31 as described above.
In step (9), the service adapter 31 reads the time from the clock 30 in step (9).

Then, in step (2), the service adapter 31 sends the diagnostic program to each function to be diagnosed, and in step (3), the service adapter 31 checks whether the sending of the diagnostic program has been completed normally. When doing
In step (10), 1 is added to the number of loops, and the version number of the diagnostic program is read.

Then, in step (4), the service adapter 31 causes each diagnosed function unit to execute diagnosis, and
After collecting the diagnostic results from each function to be diagnosed in (5), read the power supply voltage and time in step (11), and
The data read and the diagnostic results are logged as shown in FIG.

Then, the service adapter 31
In (6), the parameters at the time of the diagnosis command described in FIG. 4 are checked to determine whether or not a loop is performed. If the loop is instructed by the maintenance device 5 and the diagnosis is not completed, the processing in step (2) is performed. Then, the diagnostic program is sent to each of the function units to be diagnosed based on the routine number of the parameter to continue the diagnosis. If the diagnosis is completed, the diagnosis result logged in step (7) is returned to the maintenance device 5.
To send to.

Accordingly, the maintenance device 5 displays the diagnosis result in step (8). If the transmission of the diagnostic program has not been completed normally in step (3), the process proceeds to step (11).

[0046]

As described above, according to the present invention, since the execution result of the diagnostic program is logged in correspondence with the power supply voltage, the fault characteristics can be easily known by extracting error data. Oh Ru. At this time, multiple
Environmental data at the time of error occurrence for all functional units
Can be Therefore, the diagnosis efficiency and the diagnosis quality are improved, and the execution time of the diagnosis is recorded, so that there is no need for a person to be attached to the apparatus, and the burden on the operator can be reduced.

Since the log result is recorded in the RAM, loss of the diagnosis result due to disconnection of the maintenance device can be prevented.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating the principle of the present invention.

FIG. 2 is a block diagram of a circuit showing an embodiment of the present invention.

FIG. 3 is a detailed block diagram of a service adapter.

FIG. 4 illustrates an example of log data.

FIG. 5 is a flowchart illustrating the operation of FIG. 2;

FIG. 6 is a block diagram illustrating an example of a conventional technique.

FIG. 7 is a detailed block diagram of each functional unit.

FIG. 8 is a flowchart for explaining the operation of FIG. 6;

[Explanation of symbols]

 1, 2 channels 3 Disk controller 4 Disk device 5 Maintenance device 6, 7 Channel adapter 8, 9 Device adapter 10, 31 Service adapter 11 Common bus 12 Diagnostic bus 13, 23 Interface circuit 14, 21 Common bus control circuit 15, 20 Processor 16, 22, 32 Control memory 17, 18 Diagnostic bus control circuit 19 RAM 24 Power supply 25 Stand-alone device 26, 27 Functional unit 28 Diagnostic functional unit 29 Storage means 30 Clock

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-58-115508 (JP, A) JP-A-58-154476 (JP, U)

Claims (1)

(57) [Claims] 1. A plurality of functional units, and the plurality of functional units
The diagnostic program and parameters and sending to the actual diagnosis
A stand-alone device comprising: a diagnostic function unit to be executed ; and a power supply device for changing a power supply voltage supplied to the plurality of function units in accordance with a set value set by the diagnostic function unit.
In location, and watch for notifying the time serving as a reference for diagnosis history storage means for recording the diagnostic history, the provided in the storage unit, based on the time at which the clock is notified, for each of the plurality of functional units, According to the set power supply voltage,
While the execution result of the diagnostic program is logged,
A mode in which the diagnosis of each function to be diagnosed stops when an error occurs.
A diagnostic system for a stand-alone device, wherein the diagnostic system is configured to be able to be changed to a mode .