JP3080940B1 - Computer system - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To recognize a failure data collection state without confirming a setting state of a switch data collection mode in a sampling process by a CPU, and to be able to confirm a state of the failure data collection process by displaying a state with a display element. Provide a simple computer system. An input / output device uses a general-purpose interface as an I / O interface, is provided between a computer and an external device, and controls transmission and reception of data between the computer and the external device. The input / output device 1 includes a general-purpose interface control circuit 11, a serial interface control circuit 12, a memory 13, an interrupt control circuit 14, a data collection mode detection circuit 15, a data collection mode setting switch 16, a display element 17, an MPU 2
0, a data buffer 23 and a lower interface control circuit 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a computer system for collecting data including fault data stored in a memory provided inside an input / output device via a serial interface.

[0002]

2. Description of the Related Art In a computer system, in order to collect data including fault data stored in a memory provided inside the input / output device and indicating the content of a fault occurring in the input / output device of the computer system, an operation is performed in advance. It is necessary for the user to set this fault data collection.

That is, an operator sets a data collection mode for collecting data including fault data by using a data collection mode setting switch provided on the input / output device. In the sampling of the data collection mode setting switch, which is performed at predetermined intervals by a CPU (central processing unit) provided in the input / output device,
When it was recognized that the data collection mode was set, the computer was executing the data collection process for the first time.

[0004]

However, data collection in the above-mentioned conventional computer system has the following problems. The means to recognize that it has entered the data collection mode is
Since it relies solely on the sampling process by the CPU in the input / output device for the data collection mode setting switch input to the operator, when a problem occurs in the processing of the CPU and sampling becomes impossible, a conventional computer is used. The system has a drawback in that it is not possible to recognize that the mode has been changed to the data collection mode, so that data collection becomes impossible.

In many cases, a DIP switch or a rotary switch is used as a switch for setting a data collection mode, and is used for various settings in addition to a data transfer mode setting. There is a drawback that whether or not the data collection mode is currently set cannot be distinguished unless the setting position of the data collection mode setting switch is confirmed, and the operator cannot easily confirm.

The present invention has been made in view of such a background, and it is possible to recognize a failure data collection state without confirming a data collection mode setting state of a data collection mode setting switch in a sampling process by a CPU, and Another object of the present invention is to provide a computer system capable of confirming by displaying a state of a failure data collection process by a display.

[0007]

According to the first aspect of the present invention,
In a computer system including a computer and an input / output device that transmits and receives data by connecting the computer to an external device, the input / output device includes:
A storage unit in which data including failure data indicating a failure of the input / output device is stored; a collection mode detection unit that stores mode data of a data collection mode for collecting the data in a collection mode storage unit; When an interrupt signal is input, it is determined whether or not the mode data is stored in the collection mode storage unit, and when the mode data is stored in the collection mode storage unit, the data is stored in the collection mode storage unit. And an interrupt control unit for outputting to the personal computer.

According to a second aspect of the present invention, in the computer system according to the first aspect, when the collection mode detection unit detects that the data collection mode switch unit switches the data collection mode, the data collection mode is being executed. Is displayed on the display unit.

According to a third aspect of the present invention, in the computer system according to the first or second aspect, when the collection mode detection unit detects a change in the data collection mode of the data collection mode switch unit, the data is transferred to the storage unit. The writing of the data is prohibited.

[0010] The invention according to claim 4 is a computer,
In a computer system including an input / output device for transmitting and receiving data by connecting the computer to an external device, the input / output device stores data including fault data indicating a fault in the input / output device. A sampling mode detecting unit for storing mode data of a data sampling mode for sampling the data in a sampling mode storage unit; a timer circuit for outputting a timing signal at predetermined time intervals; It is determined whether or not the mode data is stored in the collection mode storage unit, and when the mode data is stored in the collection mode storage unit, the data is transferred from the storage unit to the personal computer. And an interrupt control unit for outputting.

According to a fifth aspect of the present invention, in the computer system according to the fourth aspect, the data collection mode is being executed when the collection mode detection unit detects the change of the data collection mode of the data collection mode switch unit. Is displayed on the display unit.

According to a sixth aspect of the present invention, in the computer system according to the fourth or fifth aspect, when the collection mode detection unit detects a change in the data collection mode of the data collection mode switch unit, the data is transferred to the storage unit. The writing of the data is prohibited.

In the failure data collection according to the present invention, the mode specification set by the data collection mode setting switch 16 is confirmed during the interrupt processing of the general-purpose interface 21 and the apparatus enters the data collection mode. With this, PC 4
Collects data such as fault data stored in the memory 13 without fail.

In FIG. 1, the interrupt control circuit 14
When an interrupt signal is detected from the general-purpose interface control circuit 11, the data stored in the memory 13 is read out via the serial interface control circuit 12 by checking the data transfer mode setting switch 16.

Therefore, the personal computer (personal computer) 3 can reliably collect the data stored in the memory 13. When the data transfer mode is set by the data transfer mode setting switch 16, the data such as the fault data stored in the memory 13 is protected and, at the same time, the fact is displayed on the display element 17.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a computer system according to one embodiment of the present invention. In FIG. 1, reference numeral 1 denotes an input / output device that uses the general-purpose interface 21 as an I / O interface, and is provided between a computer and an external device connected via the I / O interface. Control of data transfer.

The input / output device 1 includes a general-purpose interface control circuit 11, a serial interface control circuit 12, a memory 13, an interrupt control circuit 14, a data collection mode detection circuit 15, and a data collection mode setting switch 1.
6, a display element 17, an MPU 20, a data buffer 23 and a lower interface control circuit 24.

The general-purpose interface control circuit 11 controls the general-purpose interface 21 and receives an interrupt signal from the general-purpose interface 21. The general-purpose interface control circuit 11 detects an interrupt signal input from the general-purpose interface 21, and outputs a detection signal to the interrupt control circuit 14 when the interrupt signal is detected as a result of the detection.

The data acquisition mode setting switch 16 is a setting means for the operator of the personal computer 3 to externally set the data acquisition mode of the input / output device 2. The data collection mode detection circuit 15 includes a data collection mode setting switch 1
6, when the data collection mode setting switch 16 is set to the data collection mode, a signal output when the data collection mode setting switch 16 is set is input to maintain the setting state. At the same time, the memory 13 is set in a write-protected state.

The data acquisition mode detection circuit 15
At the same time that the memory 13 is set in the write-protected state, a control signal for displaying a display indicating that the data collection mode is being executed is output to the display element 17. The memory 13 stores a program for controlling an input / output device 2 by an MPU (microprocessor unit) 20 including fault data of the input / output device 2.

The interrupt control circuit 14 is connected to the general-purpose interface control circuit 11 and the data acquisition mode detection circuit 15, and detects an interrupt by the general-purpose interface 21 based on a detection signal input from the general-purpose interface control circuit 11. Also, the interrupt control circuit 14
Detects the interruption by the general-purpose interface 21 and checks the data collection mode detection circuit 15.

Further, the interrupt control circuit 14 outputs an activation signal for activating the serial interface control circuit 12 when the data acquisition mode detection circuit 15 recognizes that the data acquisition mode setting switch 16 is in the data acquisition mode. The serial interface control circuit 12 transfers data including fault data stored in the memory 13 to the personal computer 3 via the serial interface 22.

A lower interface control circuit 24 controls an interface connected to another device. The lower interface control circuit 24 is connected to the general-purpose interface control circuit 11 via the data buffer 23.

Next, an example of the operation of the embodiment will be described with reference to FIGS. FIG. 2 is a flowchart showing the operation of the computer system according to the embodiment shown in FIG. In order to perform data collection in the input / output device 2 using the present invention, it is necessary to set the data collection mode setting switch 16 to the data collection mode and then input an interrupt signal from the general-purpose interface 21.

For example, it is assumed that an event for which fault data should be collected has occurred. At this time, the operator of the personal computer 3 operates the data collection mode setting switch 16 to perform data collection.
To the data collection mode. Then, the data collection mode detection circuit 15 holds the set state of the data collection mode, and sets the memory 13 to the write-protected state.

The data acquisition mode detection circuit 15
At the same time that the memory 13 is set in the write-protected state, a control signal for displaying a display indicating that the processing in the data collection mode is being executed is output to the display element 17. Thereby, the display element 17 receives the control signal,
A display indicating that the data collection mode process is being performed is performed.

In step S 31, when the general-purpose interface control circuit 11 of the input / output device 1 receives the interrupt signal from the general-purpose interface 21,
The interrupt is detected, and a detection signal indicating that the interrupt is detected is output to the interrupt control circuit 14.

Next, in step S 32, when the detection signal is input from the general-purpose interface control circuit 11, the interrupt control circuit 14 outputs the data of the data collection mode setting switch 16 stored in the data collection mode detection circuit 15. Refers to the setting status of the collection mode.

Then, the interrupt control circuit 14 determines whether or not the data collection mode setting switch 16 is set to the data collection mode. At this time, when it is determined that the data collection mode setting switch 16 is set to the data collection mode, the interrupt control circuit 14 advances the processing to step S33. On the other hand, when it is determined that the data collection mode setting switch 16 is not set to the data collection mode, the interrupt control circuit 14 advances the processing to step S35.

Next, in step S33, when the interrupt control circuit 14 confirms that the data collection mode is set in the data collection mode detection circuit 15,
To start the serial interface control circuit 12, a start signal is output to the serial interface control circuit 12.

Next, in step S34, the serial interface control circuit 12 transmits the fault data stored in the memory 13 to the serial interface 22.
Is output to the personal computer 3 via. Then, the serial interface control circuit 12 advances the processing to step S35.

Next, in step S35, MPU2
0 is a signal indicating the detection of an interrupt from the serial interface control circuit 12, and
The interrupt processing from 1 is executed.

According to the computer system of the present invention,
Since the interrupt processing executed when the general-purpose interface 21 receives the interrupt signal is used for sampling the data collection mode setting switch 16, some problem occurs in the input / output device 1. Therefore, even if the sampling performed at predetermined intervals cannot be performed and the data collection mode setting by sampling cannot be recognized, the data collection process can be executed reliably.

Further, according to the computer system of the present invention, since the display element 17 is provided to externally indicate that the data collection mode is being executed, a normal input / output operation is erroneously executed in the data collection mode. And vice versa.

Further, according to the computer system of the present invention, special hardware is used for sampling the data acquisition mode setting switch 16 in order to use the interrupt processing executed when an interrupt signal is received from the general-purpose interface 21. Not required.

Further, according to the computer system of the present invention, since the memory 13 is set in the write-protected state in the data collection mode, the destruction of the stored data including the fault data stored in the memory 13 in the data collection mode. It can be prevented.

As described above, one embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and a design change or the like may be made without departing from the gist of the present invention. The present invention is also included in the present invention. For example, as shown in FIG. 3, there is a configuration of a computer system according to the second embodiment in which a timer circuit 18 is connected to the interrupt control circuit 14 and provided in addition to the configuration of FIG.

The timer circuit 18 generates a time-out signal at predetermined intervals and outputs it to the interrupt control circuit 14. Then, the interrupt control circuit 14 confirms the setting state of the data collection mode setting switch 16 in the data collection mode detection circuit 15 by receiving the timeout signal.

Here, when the interrupt control circuit 14 recognizes the setting state of the data collection mode setting switch 16 as the data collection mode, it activates the serial interface control circuit 12 and converts the data stored in the memory into the serial interface. 22 to the personal computer.

That is, the computer system according to the second embodiment checks the data collection mode detection circuit 15 triggered by the interrupt signal of the general-purpose interface 21 in the first embodiment, and checks the timing signal output from the timer circuit 18. Going as a trigger. here,
In the computer system according to the second embodiment, data is collected by sampling performed by the CPU 20 at predetermined intervals in the conventional example, or by interrupt processing due to generation of an external signal from the general-purpose interface 21 of the first embodiment. A configuration for activating the process is also used.

Therefore, the computer system according to the second embodiment does not rely on interrupt processing due to the generation of an external signal such as from the general-purpose interface 21, but uses a time-out signal generated internally as a trigger to collect data from the memory 13. Since the processing can be started, there is an effect that the failure data from the memory 13 can be reliably collected by the personal computer 13 even when the external signal cannot be received.

[0042]

According to a first aspect of the present invention, there is provided a computer system including a computer and an input / output device for transmitting and receiving data by connecting the computer to an external device. A storage unit in which data including failure data indicating a failure of the input / output device is stored; a collection mode detection unit that stores mode data of a data collection mode for collecting the data in a collection mode storage unit; When an interrupt signal is input, it is determined whether or not the mode data is stored in the collection mode storage unit, and when the mode data is stored in the collection mode storage unit, the data is stored in the collection mode storage unit. And an interrupt control unit for outputting the data to the personal computer. If unrecognized data collection mode can not be executed sampling performed at regular intervals by the PU also, there is an effect capable of performing reliably data acquisition process.

According to a second aspect of the present invention, in the computer system according to the first aspect, the data collection mode is being executed when the collection mode detection unit detects a change in the data collection mode of the data collection mode switch unit. Is displayed on the display unit, so that it is possible to prevent a normal input / output operation from being erroneously performed in the data collection mode and vice versa.

According to a third aspect of the present invention, in the computer system according to the first or second aspect, when the collection mode detection unit detects a change in the data collection mode of the data collection mode switch unit, the data is transferred to the storage unit. Since the writing of the data is prohibited, there is an effect that the destruction of data including the fault data stored in the storage unit can be prevented in the data collection mode.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a computer system according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating an operation example of the computer system illustrated in FIG. 1;

FIG. 3 is a block diagram illustrating a configuration of a computer system according to a second embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 input / output device 3 personal computer (personal computer) 11 general-purpose interface control circuit 12 serial interface control circuit 13 memory 14 interrupt control circuit 15 data collection mode detection circuit 16 data collection mode setting switch 17 display element 18 timer circuit 20 MPU 21 general-purpose interface 22 Serial interface 23 Data buffer 24 Lower interface control circuit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G06F 13/00 301

Claims (6)

(57) [Claims] 1. A computer system comprising a computer and an input / output device for exchanging data by connecting the computer to an external device, wherein the input / output device indicates a failure of the input / output device. A storage unit in which data including failure data is stored, a collection mode detection unit that stores mode data of a data collection mode for collecting the data in a collection mode storage unit, and when an interrupt signal is input from the external device, Interrupt control for determining whether the mode data is stored in the collection mode storage unit and outputting the data from the storage unit to the personal computer when the mode data is stored in the collection mode storage unit A computer system comprising: 2. The information processing apparatus according to claim 1, wherein when the data collection mode detection unit detects that the data collection mode is switched by the data collection mode switch unit, information indicating that the data collection mode is being executed is displayed on the display unit. Item 2. The computer system according to Item 1. 3. The data collection mode detection unit, when detecting the switching of the data collection mode of the data collection mode switch unit, disables the writing of data to the storage unit. 3. The computer system according to 2. 4. A computer system comprising a computer and an input / output device for exchanging data by connecting the computer to an external device, wherein the input / output device indicates a failure of the input / output device. A storage unit for storing data including fault data, a collection mode detection unit for storing mode data of a data collection mode for collecting the data in a collection mode storage unit, and a timer for outputting a timing signal at predetermined time intervals When the timing signal is input, it is determined whether or not the mode data is stored in the collection mode storage unit. If the mode data is stored in the collection mode storage unit, the storage is performed. And an interrupt control unit for outputting the data from the unit to the personal computer. . 5. The information processing apparatus according to claim 1, wherein when the collection mode detection unit detects that the data collection mode is switched by the data collection mode switch unit, information indicating that the data collection mode is being executed is displayed on the display unit. Item 6. The computer system according to Item 4. 6. The data collection mode detection unit, when detecting the change of the data collection mode of the data collection mode switch unit, disables the writing of data to the storage unit. 6. The computer system according to 5.