JP2001005740A - Abnormality processor of decentralized processing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To specify abnormality of a CPU card, an IO card, and a network card constituting a decentralized system and abnormality of a data transmission line between those cards and to speedily and properly perform abnormality processing. SOLUTION: A CPU unit abnormality processing control means 5 is provided in the CPU card 2 to informs the abnormality processing control means 5 of abnormality detected in an intelligent IO card 6 with an intelligent IO card abnormality notice signal 9, abnormality detected in an intelligent network card 7 with an intelligent network card abnormality notice signal 10, and abnormality of a data transmission line with a transmission line abnormality notice signal 8, thus the abnormality processing control means 5 is able to specify with which of the signals 8, 9 and 10, the abnormality is detected and speedily and properly perform abnormality processing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an abnormality processing device in a distributed processing system including a CPU card, a plurality of intelligent IO cards, and a plurality of intelligent network cards.

[0002]

2. Description of the Related Art FIG. 11 is a block diagram showing an abnormality processing apparatus in a conventional distributed processing system.
3 is a CPU unit, 64 is a CPU card mounted on the CPU unit 63, 65 is an intelligent IO card mounted on the CPU unit 63, 66 is a CPU
An intelligent network card mounted on the unit 63. 67 is a microprocessor mounted on the CPU card 64; 68 is a main control device for controlling the CPU card 64; 69 is mounted on the CPU card 64;
It is a CPU unit abnormality processing control device of the PU unit 63. 70 is a C for notifying the CPU card 64 of an abnormality detected in the intelligent IO card 65 and the intelligent network card 66.
This is a PU unit abnormality notification signal. Reference numeral 71 denotes the microprocessor 6 which reports the abnormality detected in the CPU card 64 and the abnormality notified by the CPU unit abnormality notification signal 70.
7 is a CPU card abnormality notification signal notified to the CPU 7.

Next, the operation will be described. The CPU card 64 is a CPU unit 6 for constructing a distributed processing system.
3, the main application is executed, and the IO control and the network control are executed by the intelligent IO card 65 and the intelligent network card 66, respectively. In the CPU card 64,
Execution of the main program by the microprocessor 67 is executed based on a main controller 68 that controls data processing by the microprocessor 67. An abnormality detected when the microprocessor 67 executes data processing by the main control device 68 is notified to the CPU unit abnormality processing control device 69 by a CPU unit abnormality notification signal 70, and is notified via a CPU card abnormality notification signal 71. The microprocessor 67 is notified.

An abnormality detected in the intelligent IO card 65 is notified to a CPU unit abnormality processing control device 69 in the CPU card 64 via a CPU unit abnormality notification signal 70, and a CPU card abnormality notification signal 71
Is notified to the microprocessor 67 via.

[0005] Intelligent network card 66
The abnormality detected in is notified to the CPU unit abnormality processing control device 69 in the CPU card 64 via the CPU unit abnormality notification signal 70 and to the microprocessor 67 via the CPU card abnormality notification signal 71.

[0006] CPU card 64 and intelligent IO
The abnormality detected in the data transfer between the CPU card 64 and the data transfer between the CPU card 64 and the intelligent network card 66 is transmitted to the CPU unit abnormality processing control device in the CPU card 64 via the CPU unit abnormality notification signal 70. Transmitted to the CPU card abnormality notification control signal 69 from the CPU unit abnormality processing control device 69.
1 is notified to the microprocessor 67.

As described above, all the abnormalities detected in the CPU unit 63 are notified to the microprocessor 67 via the CPU card abnormality notification signal 71 in the CPU card 64, and the microprocessor 67
A CPU unit abnormality processing program stored in the PU card 64 is executed, and an operation after an abnormality is detected in the CPU unit 63 is determined and executed by the abnormality processing program.

[0008]

Since the abnormality processing device in the conventional distributed processing system is configured as described above, the abnormality detected in the data processing in the CPU card 64 and the abnormality detected in the intelligent IO card 65 are detected. Error notification and the error notification detected in the intelligent network card are all
Since the CPU unit abnormality notification signal 70 is shared and notified to the CPU unit abnormality processing controller 69 in the CPU card 64, it is not possible to determine which abnormality is present, and the CPU unit abnormality processing program in the CPU card 64 remains unspecified. As a result, it is necessary to collectively execute the abnormality processing as the abnormality of the CPU unit 63, and there is a possibility that appropriate processing cannot be performed. In addition, an error check operation for specifying an abnormal part is required, and it is not possible to quickly respond to the abnormality.

Further, the CP constituting the CPU unit 63
Notification of a data transmission path abnormality in data processing between the U card 64 and the intelligent IO card 65 and data processing between the CPU card 64 and the intelligent network card 66, and a data transmission path in data processing inside the CPU card 64 Notification of abnormality of the CP
Since the U unit abnormality notification signal 70 is shared,
Whether the data transmission path inside the U card 64 is abnormal,
The CPU unit 63 cannot determine whether the data transmission path in the data processing between the CPU card 64 and the other intelligent cards 65 and 66 is abnormal.
Abnormalities had to be dealt with collectively as abnormalities.

In the conventional abnormality processing control device, the CP
The abnormality detected inside each of the U card 64, the intelligent IO card 65, and the intelligent network card 66, the data transfer processing between the CPU card 64 and the intelligent IO card 65, and the communication between the CPU card 64 and the intelligent network card 66. The abnormality detected in the data transfer processing between the CPU card is notified by the CPU card abnormality notification signal 71 from the CPU unit abnormality processing controller 69 in the CPU card 64.
Since it is notified to the microprocessor 67 of the PU card 64, it is not possible to determine which one is abnormal, and it is necessary to execute the CPU unit abnormality processing program in the CPU card 64 without being able to specify the abnormality.

As described above, the abnormality processing apparatus in the conventional distributed processing system is configured to perform an abnormality when an internal abnormality occurs in each of the CPU card 64, the intelligent IO card 65, and the intelligent network card 66 constituting the CPU unit 63. There is a problem that the card in which the error has occurred cannot be specified.

As described above, the abnormality processing device in the conventional distributed processing system includes an abnormality in the data processing in the CPU card 64, a data processing between the CPU card 64 and the intelligent IO card 65, and a CP.
U card 64 and intelligent network card 6
However, there is a problem that it is not possible to distinguish and recognize the abnormality of the data transmission path in the CPU unit 63 in the data processing between the step S6 and the step S6.

In the conventional distributed processing system, the abnormality processing apparatus is provided with an I / O of the distributed processing system constructed by the CPU unit 63 when an abnormality that cannot execute the CPU unit abnormality processing program occurs due to an inoperable abnormality of the microprocessor. There has been a problem that the control and the network control continue an incorrect operation.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has been described with reference to the accompanying drawings.
The abnormality detected in each of the PU card, the intelligent IO card, and the intelligent network card can be identified, and the abnormality in the data transmission path connecting the CPU card to the intelligent IO card and the intelligent network card can be identified, and the abnormality processing can be performed. It is an object of the present invention to obtain an abnormality processing device in a distributed processing system that can execute the processing. Further, when an abnormality in which the microprocessor of the CPU card cannot execute the abnormality processing program is detected,
It is an object of the present invention to obtain an abnormality processing device in a distributed processing system in which execution of a main application, IO control, and network control can be forcibly stopped and controlled by hardware.

[0015]

According to the present invention, there is provided a CPU card for executing a main application program;
An abnormal processing apparatus in a distributed processing system including an intelligent IO card for executing an O control program and an intelligent network card for executing a network control program, the abnormality processing apparatus being provided in the distributed processing system and being detected in the distributed processing system. Abnormality processing control means for executing abnormality processing for the abnormality;
A CPU card abnormality notification unit for notifying the abnormality processing control unit of the abnormality detected in the PU card; an intelligent IO card abnormality notification unit for notifying the abnormality processing control unit of the abnormality detected in the intelligent IO card; Intelligent network card error notification means for notifying the error processing control means of an error detected in the intelligent network card, data transfer processing between the CPU card and the intelligent IO card, and communication between the CPU card and the intelligent network card An abnormality processing apparatus in a distributed processing system comprising: a data transmission path abnormality notification unit for notifying an abnormality processing control unit of an abnormality detected in the data transfer process.

Also, a CPU card, an intelligent I
The O card and the intelligent network card constitute one CPU unit.

Further, the CPU card constitutes a CPU unit, and the intelligent IO card and the intelligent network card constitute an extension unit.
The CPU unit and the expansion unit are connected via a first unit expansion card provided in the U unit and a second unit expansion card provided in the expansion unit.

Further, the abnormality processing control means is provided in the CPU card.

Further, the abnormality processing control means is provided separately in the CPU card, the intelligent IO card, and the intelligent network card.

An abnormality processing control means is provided in the CPU card, and receives the notification from the CPU card abnormality notification means and the data transmission path abnormality notification means to detect the abnormality detected in the CPU card and the data transfer processing. A CPU card error processing unit for executing an error process for the detected error, and a notification provided from the intelligent IO card error notification means, provided in the intelligent IO card, for detecting an error detected in the intelligent IO card. An intelligent IO card error processing unit for executing processing and notifying the result of the error processing to the CPU card error processing unit; and an intelligent network card error notification unit provided in the intelligent network card and receiving notification from the intelligent network card error notification means. And executes error processing to the detected anomaly in Kukado, and a, and intelligent network card abnormality processing unit for notifying the result of the abnormality processing CPU card abnormality processing unit.

An abnormality processing control means is provided in the CPU card of the CPU unit. The abnormality processing control means receives the notification from the CPU card abnormality notification means and the data transmission path abnormality notification means, and detects the abnormality detected in the CPU card and the data transfer. A CPU unit error processing unit for executing an error process for an error detected in the process, and an intelligent IO card provided in the intelligent IO card of the expansion unit. An extended intelligent IO card error processing unit that executes error processing for abnormalities and notifies the CPU unit error processing unit of the result of the error processing, and an intelligent network card error An extended intelligent network card abnormality processing unit that receives an instruction from the informing means, executes abnormality processing for an abnormality detected in the intelligent network card, and notifies a result of the abnormality processing to the CPU unit abnormality processing unit; Unit expansion card abnormality processing that is provided in the second unit expansion card, executes abnormality processing for an abnormality detected in the second unit expansion card, and notifies the CPU unit abnormality processing unit of the result of the abnormality processing. And a unit.

An abnormality processing control means is provided in the CPU card, and receives a notification from the CPU card abnormality notification means to respond to an abnormality detected in the CPU card.
CPU card abnormality processing unit for executing abnormality processing, and CPU
An intelligent IO card failure control unit, provided in the card, for executing an abnormality process for an abnormality detected in the intelligent IO card in response to a notification from the intelligent IO card abnormality notification unit, and storing a result of the abnormality process; , Provided in the CPU card,
An intelligent network card failure control unit that receives abnormality notification from the intelligent network card abnormality notification unit, executes abnormality processing for an abnormality detected in the intelligent network card, and stores a result of the abnormality processing.

An abnormality processing control means is provided in the CPU card of the CPU unit, and executes abnormality processing for an abnormality detected in the CPU card in response to a notification from the CPU card abnormality notification means. A card error processing unit, a unit expansion card failure control unit provided in the CPU card of the CPU unit, for executing an error process for an error detected in the first unit expansion card, and storing a result of the error process. , Is provided.

The abnormality processing control means further comprises a CP
A transmission path failure control unit, which is provided in the U-card and executes the abnormality processing for the abnormality detected in the data transfer processing in response to the notification from the data transmission path abnormality notification means, and stores the result of the abnormality processing. Have.

An abnormality processing control means is provided in the second unit expansion card of the expansion unit, and receives abnormality notification from the intelligent IO card abnormality notification means to perform abnormality processing for an abnormality detected in the intelligent IO card. And an extended intelligent IO card failure control unit that stores the result of the abnormal processing, and a second unit expansion card of the extension unit,
In response to the notification from the intelligent network card error notification means, an error processing is performed for the error detected in the intelligent network card, and an expanded intelligent network card fault control unit for storing the result of the error processing is provided. Provided in the second unit expansion card, receives the notification from the data transmission path abnormality notification means, executes the abnormality processing for the abnormality detected in the data transfer processing in the expansion unit, and stores the result of the abnormality processing. And an extended transmission path failure control unit.

If the abnormal processing control means detects an abnormality to be processed in the distributed processing system, and if the abnormal processing execution means cannot execute the abnormal processing execution program, the abnormal processing control means And a forced stop means for forcibly stopping the execution of the main application program of the CPU card without going through the abnormal processing.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an abnormality processing device in the distributed processing system of the present invention. In FIG. 1, reference numeral 1 denotes a CPU unit that constructs a distributed processing system, and 2 denotes a CP that executes a main application in the CPU unit 1.
U card, 6 is an intelligent I which executes IO control
The O card 7 is an intelligent network card that executes network control. 3 is a CPU card 2
The microprocessor 4 executes a main application, the main controller 4 controls the CPU 3 when the microprocessor 3 executes data processing in the CPU card 2, and the microprocessor 5 controls the CPU 10, the intelligent IO card 6, and the intelligent network card 7. CP for controlling abnormal processing of the configured CPU unit 1
This is a U unit abnormality processing control device.

In FIG. 1, reference numeral 8 denotes a data transmission path in data processing between the CPU card 2 and the intelligent IO card 6 constituting the CPU unit 1 and data processing between the CPU card 2 and the intelligent network card 7. 9 is a CPU unit transmission path abnormality notification signal for notifying the CPU card 2 of the abnormality of the CPU card 2, 9 is an intelligent IO abnormality notification signal for notifying the CPU card 2 of the intelligent IO card 6 of an abnormality of the intelligent IO card 6, and 10 is an intelligent IO abnormality notification signal. An intelligent network card error notification signal for notifying the CPU card 2 of an error of the intelligent network card 7 from the network card 7, and a microcontroller 11 from the main controller 4 to the CPU unit error processing controller 5. A main controller abnormality notification signal for notifying the abnormality of the processor 3 and the main controller 4, and a CPU card abnormality notification signal 12 for notifying the microprocessor 3 of an abnormality in the CPU card 2 from the CPU unit abnormality processing controller 5. is there.

In this embodiment, the CPU
Unit abnormality processing control device 5 and microprocessor 3
Are provided in the distributed processing system, and constitute abnormal processing control means for executing abnormal processing for abnormalities detected in the distributed processing system. Further, the main controller abnormality notification signal 11 constitutes a CPU card abnormality notification means for notifying the abnormality processing control means of an abnormality detected in the CPU card, and the intelligent IO card abnormality notification signal 9 An intelligent IO card error notification means for notifying the error processing control means of an error detected in the card, and an intelligent network card error notification signal 10 notifies the error processing control means of an error detected in the intelligent network card. And an error notification means for intelligent network card. Further, the CPU unit transmission path abnormality notification signal 8
Is a data transmission path abnormality notification for notifying abnormality processing control means of an abnormality detected in the data transfer processing between the CPU card and the intelligent IO card and the data transfer processing between the CPU card and the intelligent network card. Means.

Next, the operation will be described. In the CPU card 2, when the microprocessor 3 executes a main application, the microprocessor 3 executes data processing via the main controller 4. When the microprocessor 3 executes data processing, an abnormality detected inside the CPU card 2 is notified to the CPU unit abnormality processing control device 5 by a main control device abnormality notification signal 11, and then the CP 3
The microprocessor 3 is notified by the U card abnormality notification signal 12
The microprocessor 3 executes the CPU unit abnormality processing program under the control of the CPU unit abnormality processing control device 5 based on the notification, and executes the abnormality processing.

In the intelligent IO card 6,
When executing the IO control, the abnormality detected inside the intelligent IO card 6 is determined by the intelligent IO card abnormality notification signal 9 by the CP of the CPU card 2.
The U unit abnormality processing control device 5 is notified, and the microprocessor 3 is notified by the CPU card abnormality notification signal 12, and the microprocessor 3 executes the CPU unit abnormality processing program to execute the abnormality processing.

In the intelligent network card 7, when the network control is executed, an abnormality detected inside the intelligent network card 7 is notified to the CPU unit abnormality processing control device 5 of the CPU card 2 by an intelligent network card abnormality notification signal 10. And the CPU card abnormality notification signal 1
2, the microprocessor 3 is notified, and the microprocessor 3 executes a CPU unit abnormality processing program to execute abnormality processing.

An abnormality detected in the data transfer between the CPU card 2 and the intelligent IO card 6 and in the data transfer between the CPU card 2 and the intelligent network card 7 is transmitted via the CPU unit transmission path abnormality notification signal 8. It is transmitted to the CPU unit abnormality processing control device 5 in the CPU card 2 and is notified from the CPU unit abnormality processing control device 5 to the microprocessor 3 via the CPU card abnormality notification signal 12, and the microprocessor 3 executes the CPU unit abnormality processing program. Run
Perform the error processing.

As described above, according to the present invention, the CPU unit 1 constructing the distributed processing system
CPU for notifying the microprocessor 3 of an abnormality inside the CPU card 2 from the U unit abnormality processing control device 5
A card error notification signal 12, an intelligent IO error notification signal 9 for notifying the CPU card 2 of an error from the intelligent IO card 6 to the CPU card 2, and an intelligent network card 7 to C
An intelligent network card error notification signal 10 for notifying the PU card 2 of an error in the intelligent network card 7, and an error in a data transmission path in data processing between the CPU card 2 and the intelligent IO card 6 and the intelligent network card 7. Is provided to the CPU card 2 to notify the CPU card 2 of the
The abnormality detected in each of the U card 2, the intelligent IO card 6, and the intelligent network card 7 can be specified, and the CPU
An abnormality in the data transmission path connecting the card 2 with the intelligent IO card 6 and the intelligent network card 7 can be specified, and the CPU card 2 can centrally control the processing of the abnormalities. Further, in the present invention, the abnormality processing is performed by interrupting the microprocessor 3 only when an abnormality occurs, so that a special operation for checking an error at a normal time such as when the power is turned on is not required. There is no need to stop normal processing even though no error has occurred for error checking.This improves convenience, and when an interrupt occurs, the location of the error has already been identified. Abnormal processing can be started immediately, and quick and appropriate response is possible.

The signals 8 to 10 may share the same signal line such as a data transmission line so that different signals can be used to identify any abnormality.
Alternatively, separate dedicated signal lines may be prepared so as to correspond one-to-one with respect to -10, and these may be used. Similarly, the signal 12 only needs to be able to specify which abnormality, so the same signal line may be shared and different signals may be used to notify which abnormality. A plurality may be prepared so as to have a one-to-one correspondence, and the notification may be made via each signal line. Embodiment 1 of the present invention
10 to 10 show examples in which one intelligent IO card and one intelligent network card are provided, respectively, but the present invention is not limited to this case, and a plurality of these cards may be provided.

Embodiment 2 Hereinafter, a second embodiment of the present invention will be described with reference to the drawings. In FIG. 2, reference numeral 14 denotes a CPU unit for constructing a distributed processing system, and 28 denotes a CP.
This is an expansion unit that is connected to the U unit 14 via a data transmission path to construct a distributed processing system. 15 is CP
A CPU card for executing a main application in the U unit 14, and a unit expansion card (master) 19 for connecting an expansion unit 28.

Reference numeral 30 denotes an intelligent network card mounted on the expansion unit 28 to execute network control, and 31 denotes an intelligent IO card mounted on the expansion unit 28 to execute IO control. 29
Is a unit expansion card (slave) for connecting the expansion unit 28 to the CPU unit 14. 32 is C
Extended unit transmission path error notification for notifying the CPU card 15 of a data transmission path error in the data processing between the PU card 15 and the intelligent IO card 31 and the data processing between the CPU card 15 and the intelligent network card 30. A signal 34 is an intelligent IO card error notification signal for notifying the intelligent IO card 31 of an error of the intelligent IO card 31 from the intelligent IO card 31 to the CPU card 15, and a numeral 33 is an error of the intelligent network card 30 from the intelligent network card 30 to the CPU card 15. Is an intelligent network card error notification signal.

A microprocessor 16 for executing a main application in the CPU card 15;
Reference numeral 17 denotes the microprocessor 1 in the CPU card 15.
6 is a main controller when data processing is performed, and 18 is C
This is a CPU unit abnormality processing control device that controls abnormality processing of the PU card 15 and the expansion unit 28. 23 is a main unit 17 to a CPU unit abnormality processing control unit 1
8 and a microprocessor 16 and a main controller 17
Main controller abnormality notification signal for notifying the abnormality of
This is a CPU card abnormality notification signal for notifying the microprocessor 16 of an abnormality inside the CPU card 2 and the extension unit 28 from the U unit abnormality processing control device 18.

Next, the operation will be described. In the CPU card 15, when the microprocessor 16 executes a main application, the microprocessor 16 executes data processing via the main controller 17. When the microprocessor 16 performs data processing, the abnormality detected inside the CPU card 15 is determined by the CPU unit abnormality processing control device 1.
8, the microprocessor 16 is notified by a CPU card abnormality notification signal 24, and the microprocessor 16 executes a CPU unit abnormality processing program to execute abnormality processing.

When executing the IO control in the intelligent IO card 31 mounted on the expansion unit 28, an abnormality detected inside the intelligent IO card 31 is notified by the intelligent IO card abnormality notification signal 34 to the unit expansion card (slave). ) 29
Will be notified. Next, the unit expansion card (slave)
29, the extension unit abnormality notification signal 27
The unit expansion card (master) 19 of the unit 14 is notified, and the unit expansion card (master) 19 sends the CPU card 15
The microprocessor 1 from the CPU unit abnormality processing control device 18 in the
6, the microprocessor 16 executes the CPU unit abnormality processing program to execute the abnormality processing.

Similarly, when executing network control in the intelligent network card 30 mounted on the extension unit 28, an abnormality detected inside the intelligent network card 30 is as follows.
Intelligent network card error notification signal 33
Is notified to the unit expansion card (slave) 29, and then the CPU unit 1 is notified from the unit expansion card (slave) 29 by the expansion unit abnormality notification signal 26.
4 is notified to the unit expansion card (master) 19.
Next, the microprocessor 16 via the CPU card abnormality notification signal 24 from the CPU unit abnormality processing controller 18 in the CPU card 15 based on the unit expansion card abnormality notification signal 21 from the unit expansion card (master) 19.
, The microprocessor 16 executes a CPU unit abnormality processing program to execute abnormality processing.

An abnormality detected in the data transfer between the CPU card 15 and the intelligent IO card 31 and in the data transfer between the CPU card 15 and the intelligent network card 30 is indicated by an extension unit transmission path abnormality notification signal 32. The notification is sent to the unit expansion card (slave) 29 via the extension unit abnormality notification signal 26 or 27, and then to the unit expansion card (master) 19. Next, from there, it is notified to the CPU unit abnormality processing control device 18 via the unit expansion card abnormality notification signal 20 or 21,
From there, it is notified to the microprocessor 16 via the CPU card abnormality notification signal 24, and the microprocessor 16 executes a CPU unit abnormality processing program and performs abnormality processing.

As described above, in this embodiment, the distributed processing system is provided by providing the extension unit abnormality notification signals 26 and 27 and the unit expansion card abnormality notification signals 20 and 21 for notifying the abnormality in the extension unit 28. CPU unit 14, expansion unit (master) 19, and unit expansion card (slave)
29, the abnormality detected in each of the intelligent IO card 31 and the intelligent network card 30 can be specified, and the abnormality in the data transmission path can be specified, and the CPU card 15 can centrally execute the abnormality processing control. .

Embodiment 3 FIG. Hereinafter, a third embodiment of the present invention will be described with reference to the drawings. In FIG. 3, 5A is C
This is a CPU unit abnormality processing control device that is mounted on the PU card 2 (no extension unit, see FIG. 1) and executes abnormality processing of the CPU card 2. 6A is Intelligent I
The intelligent I / O card mounted on the O-card 6 (see FIG. 1) and executing the abnormality processing of the intelligent I / O card 6
This is an O-card abnormality processing control device. Reference numeral 7A denotes an intelligent network card error processing control device that is mounted on the intelligent network card 7 (see FIG. 1) and executes the error processing of the intelligent network card 7. The rest of the configuration is the same as that of the above-described first embodiment, and will be referred to there.

Next, the operation will be described. In this embodiment, the intelligent IO card 6 and the intelligent network card 7 include an intelligent IO card abnormality processing control device 6A and an intelligent IO card abnormality processing control device 6A for controlling the abnormality processing inside the respective cards. The intelligent network card error processing control device 7A is mounted, and the error processing results 9A and 10A in each card are stored in the CPU.
Notify the card 2 via the CPU unit abnormality processing control device 5A.

Abnormalities detected in data transfer between the CPU card 2 and the intelligent IO card 6 and data transfer between the CPU card 2 and the intelligent network card 7 and abnormalities detected inside the CPU card 2 are as follows. It is transmitted to the CPU unit abnormality processing control device 5A in the CPU card 2 via the CPU unit transmission line abnormality notification signal 8, and is notified from the CPU unit abnormality processing control device 5A to the microprocessor 3 via the CPU card abnormality notification signal 12. Then, the microprocessor 3 executes a CPU unit abnormality processing program,
Perform the error processing.

According to the present embodiment, each of the intelligent IO card 6 and the intelligent network card 7 can process an abnormality in the intelligent IO card 6 and the intelligent IO card abnormality processing control device 6A that notifies the CPU card 2 of the processing result. By providing the network card abnormality processing control device 7A, the CPU card 2 can detect the abnormality of the intelligent IO card 6 and the intelligent network card 7, and each of the CPU card 2, the intelligent IO card 6, and the intelligent network card 7 The detected abnormality can be specified, and the CPU card 2, the intelligent IO card 6, and the intelligent network card 7 It can identify an abnormal data transmission line connecting.

Embodiment 4 Hereinafter, a fourth embodiment of the present invention will be described with reference to the drawings. In FIG. 4, 29A
Is the unit expansion card (slave) 29 (see FIG. 2)
This is a unit expansion card (slave) abnormality processing control device that is mounted on the device. 31A is an intelligent IO card abnormality processing control device mounted on the intelligent IO card 31 (see FIG. 2). 30A is an intelligent network abnormality processing control device mounted on the intelligent network card 30 (see FIG. 2).
Note that the other configuration of the whole is the same as that of FIG.

Next, the operation will be described. In this embodiment, the intelligent IO card 31, the intelligent network card 30, and the unit expansion card (slave) 29 mounted on the expansion unit 28 of FIG. The error processing control device 31A, the intelligent network card error processing control device 30A, and the unit expansion card error processing control device 29A execute the error processing for each card, and report the result of the error processing for each card to the CPU.
Unit expansion card (master) 19 to card 15 (FIG. 2)
Notify via). Other operations are the same as those in the above-described second embodiment, and a description thereof will not be repeated.

According to this embodiment, the intelligent IO card 31, intelligent network card 30, and unit expansion card (slave) 29 process abnormalities, and notify the CPU card 15 of the processing result. By providing the control device 31A, the intelligent network card error processing control device 30A, and the unit expansion card error processing control device 29A, the CPU card 15 allows the intelligent IO card 31, the intelligent network card 30, and the unit expansion card error processing control device 29 to malfunction. Can be detected, and the CPU card 1
5. An abnormality detected in each of the intelligent IO card 31, the intelligent network card 30, and the unit expansion card (slave) 29 can be specified, and the CPU card 15 is connected to the intelligent IO card 31, and the intelligent network card 30. Of the data transmission path to be performed can be specified.

Embodiment 5 FIG. Hereinafter, a fifth embodiment of the present invention will be described with reference to the drawings. In FIG. 5, 47 is
This is a CPU unit abnormality processing control device mounted on the CPU unit 1 (see FIG. 1). Reference numerals 48 and 49 denote a CPU card severe fault control device and a CPU card serious fault control device, respectively, which process major faults and minor faults detected inside the CPU card 2 (see FIG. 1) and store the occurrence of those abnormalities.
This is a PU card minor failure control device. Reference numeral 50 denotes an IO card failure control device that processes an abnormality detected inside the intelligent IO card 6 (see FIG. 1) and stores the occurrence of the abnormality, and 51 denotes an inside of the intelligent network card 7 (see FIG. 1). This is a network card failure control device that processes the detected abnormality and stores that the abnormality has occurred. Reference numeral 52 denotes a CPU card light failure notification signal for notifying the stored light failure.
Reference numerals 3 and 54 denote an intelligent IO card error notification signal and an intelligent network card error notification signal, respectively, for notifying the stored error.
55 and 56 are C connected to the microprocessor 3
This is a PU card abnormality notification signal.

The operation will be described. CPU unit 1
An abnormality detected in the internal processing of the intelligent IO card 6 mounted on the CPU unit (see FIG. 1) is processed by the IO card failure control device 50 mounted on the CPU unit abnormality processing device 47, and the IO card failure control device 50
Is stored in the storage of information indicating that an error has occurred in the intelligent IO card 6. CPU unit 1
An abnormality detected in the intelligent network card 7 mounted on the network card failure control device 51 (see FIG. 1) is processed by the network card failure control device 51 mounted on the CPU unit abnormality processing device 47. Further, the fact that an abnormality has occurred in the intelligent network card 7 is stored.

The abnormality stored in the IO card failure control device 50 and the network card failure control device 51 is notified to the microprocessor 3 (see FIG. 1) of the CPU card 2 via the CPU card abnormality notification signal 55. , Based on which, the microprocessor 3
The U unit abnormality processing program is executed to specify the intelligent IO card 6 or the intelligent network card 7 in which the abnormality has occurred, based on the information stored in the CPU unit abnormality processing controller 47.

In the CPU card 2, when the microprocessor 3 detects an abnormality in data processing inside the CPU card 2, the main controller abnormality notification signal 1
1, the CPU unit abnormality processing control device 47 is notified, and the CPU card severe failure control device 48 or the CPU
Abnormal processing is performed by the card minor failure controller 49 and the CPU
The microprocessor 3 is notified by the card abnormality notification signal 56, and starts the abnormality processing program. The data transmission path abnormality in the CPU unit 1 is stored in the CPU card severe failure control device 48 or the CPU card minor failure control device 49, and is recognized by the abnormality processing program.

As described above, also in this embodiment, similarly to the above-described embodiment, the abnormality detected in each card and the abnormality of the data transmission path can be specified.

Embodiment 6 FIG. Hereinafter, a sixth embodiment of the present invention will be described with reference to the drawings. In FIG. 6, 47A
Is a CPU unit abnormality processing control device mounted on the CPU card 15 in the CPU unit 14 (see FIG. 2). Reference numerals 48A and 49A denote a CPU card heavy failure control device and a CPU card light failure control device which process and store a serious failure and a minor failure of the CPU card 15. 50A is a unit expansion card (master) failure control device that processes and stores abnormalities of the unit expansion card (master) 19 (see FIG. 2). Also. 52A is a CPU card light failure notification signal for notifying the stored light failure, and 53A is
This is a unit expansion card (master) abnormality notification signal for notifying the stored abnormality. 55A and 56A are
This is a CPU card abnormality notification signal connected to the microprocessor 3. The other configuration is the same as that of the above-described second embodiment, and the description thereof is omitted here, and FIG. 2 is referred to.

The operation will be described. Unit expansion card (master) abnormality notification signal 20 or 21 (see FIG. 2)
2, the abnormality of the unit expansion card (master) 19 notified to the CPU unit abnormality processing control device 47A is stored in the unit expansion card (master) failure control device 50A, and the CPU card abnormality notification signals 55A and 24 (FIG. 2).
(See FIG. 2) to execute the CPU unit abnormality processing program. Other operations are the same as those in the second embodiment.

The microprocessor 16 executes the CPU unit abnormality processing program, thereby
The abnormality stored in the unit expansion card (master) failure control device 50A mounted on the U unit abnormality processing control device 47A is recognized, and the unit expansion cards 19 and 29 are operated by the same operation as in the second embodiment. Then, the malfunction of the intelligent network card 30 and the intelligent IO card 31 notified via the communication unit is recognized, and the failed card in the expansion unit 28 is specified.

As described above, also in this embodiment, similarly to the above embodiment, it is possible to specify the abnormality detected in each card and the abnormality of the data transmission path. Note that, in this embodiment, an example in which the present invention is applied to the configuration of Embodiment 2 has been described, but it is also possible to combine with the configuration of Embodiment 4 described above.
In that case, the same effect can be obtained.

Embodiment 7 FIG. Hereinafter, a seventh embodiment of the present invention will be described with reference to the drawings. In FIG. 7, 47B
Is a CPU unit abnormality processing control device obtained by adding a CPU unit transmission line failure control device 51A to the configuration of the CPU unit abnormality processing control device 47 of FIG. CPU
The unit transmission path failure control device 51A processes and stores abnormalities in the data transmission path in the CPU 1. In addition,
The CPU card 2, the intelligent IO card 6, and the intelligent network card 7 are connected through a common data transmission path.
It is assumed that the data transmission line is also common. In addition, about another structure, FIG. 1 and FIG. 5 are referred and description is abbreviate | omitted here.

The operation will be described. Data processing between CPU card 2 and intelligent IO card 6 and C
PU card 2 and intelligent network card 7
In the data processing during the period, an abnormality in the data transmission path connecting the CPU card 2, the intelligent IO card 6, and the intelligent network card 7 is represented by C
The CPU unit abnormality processing control unit 47B is notified by the PU unit transmission line abnormality notification signal 8 and is processed abnormally by the CPU unit transmission line failure control unit 51A.
The microprocessor 3 is notified by the card abnormality notification signal 55, and starts the CPU unit abnormality processing program. The processed inter-card data transmission path abnormality in the CPU unit 1 is stored in the CPU unit transmission path failure control device 51A and is recognized by executing the abnormality processing program. For other actions,
It is assumed that this is the same as in the first or fifth embodiment.

As described above, also in this embodiment, similarly to the above-described embodiment, the abnormality detected in each card and the abnormality of the data transmission path can be specified.

Embodiment 8 FIG. Hereinafter, an eighth embodiment of the present invention will be described with reference to the drawings. In FIG. 8, 57 is
This is an expansion unit abnormality processing control device mounted on a unit expansion card (slave) 29 (see FIG. 2) of the expansion unit 28 (see FIG. 2). 58 is an IO card failure control device, 59 is a network card failure control device, and 59A is an expansion unit transmission path failure control device.

The operation will be described. CPU unit 1
In the data processing between the CPU card 15 constituting the communication unit 4 and the intelligent IO card 31 and the intelligent network card 30 in the expansion unit 28, an abnormality detected in the data transmission path in the expansion unit 28 The unit expansion card (slave) 29 is notified by the abnormality notification signal 32, and is stored in the expansion unit transmission path failure control unit 59A of the expansion unit abnormality processing control unit 57 in the unit expansion card (slave) 29, and the expansion unit transmission path abnormality Notification signal 6
2 to the unit expansion card (master) 19, and the unit expansion card (master) 19 sends a unit expansion card (master) abnormality notification signal 20 or 2
1, the CPU unit abnormality processing controller 18 is notified, and the CPU unit abnormality processing controller 18 is notified to the microprocessor 16 by the CPU card abnormality notification signal 24 to start the CPU unit abnormality processing program. The CPU card 15 searches the expansion unit transmission line failure control device 59A in the expansion unit abnormality processing control device 57 of the unit expansion card (slave) 29 to execute the expansion unit transmission line processing by the processing of the abnormality processing program in the CPU card 15. Identify abnormalities.

The abnormalities detected inside the intelligent IO card 31 and the intelligent network card 30 are processed and stored in the IO card failure control device 58 and the network card failure control device 59. These abnormalities are notified to the microprocessor 16 of the CPU card 15 (see FIG. 2) by the intelligent IO card abnormal notice signal 60 or the intelligent network card abnormal notice signal 61, and
It is notified via the unit expansion card (slave) abnormality notification signal 62, and based on this, the microprocessor 16
Executes the CPU unit abnormality processing program and
Based on the information stored in the U unit abnormality processing control device 57, the intelligent IO card 31 or the intelligent network card 30
To identify. Other operations are the same as in the second embodiment.

As described above, also in this embodiment, similarly to the above embodiment, it is possible to specify the abnormality detected in each card and the abnormality of the data transmission path.

Embodiment 9 Hereinafter, a ninth embodiment of the present invention will be described with reference to FIG. The configuration of FIG. 9 is different from the configuration of FIG. 1 in that a microprocessor forcible stop signal 1 for forcibly stopping the operation of the microprocessor 3 is provided.
3 is added.

The operation will be described. In FIG. 9, C
In the PU card 2, when the microprocessor 3 executes the main program, when an abnormality is detected in the internal data processing of the CPU card 2, or when an abnormality is detected inside the intelligent IO card 6 and the intelligent network card 7. Alternatively, when a fatal abnormality is detected in the IO control and the network control in the data transfer processing, and the microprocessor 3 is in an inoperable abnormal state where the abnormality processing program cannot be executed, the CPU unit abnormal processing control is performed. The execution of the main application of the microprocessor 3 is forcibly stopped by hardware in response to the microprocessor forcible stop signal 13 from the device 5, and the illegal operation is urgently stopped. In this case, the microprocessor 3 does not operate due to any external factors. Other operations are the same as those in the above-described first embodiment, and a description thereof will not be repeated.

As described above, in this embodiment, similarly to the first embodiment, it is possible to specify the abnormality detected in each card and to identify the abnormality in the data transmission path. The abnormality processing can be executed for the abnormality of. Further, when the microprocessor of the CPU card detects an abnormality in which the abnormality processing program cannot be executed, the execution of the main application is forcibly stopped to prevent the IO control and the network control from continuing an illegal operation. Can be prevented.

Embodiment 10 FIG. Hereinafter, a tenth embodiment of the present invention will be described with reference to the drawings. The configuration of FIG. 10 is different from the configuration of FIG. 2 in that a microprocessor forcible stop signal 25 for forcibly stopping the operation of the microprocessor 16 is added. Is added. The other configuration is the same as that of FIG.

The operation will be described. Extension unit 28
In the case where an abnormality that requires the main program of the CPU unit 14 to be immediately interrupted is detected, the unit expansion card (slave) 29 receives the CPU forced stop notification signal 27A and sends the unit expansion card (master) 19
Through the CPU forced stop notification signal 21A
The CPU unit abnormality processing control unit 18 of the U card 15 is notified, the execution of the main application of the microprocessor 16 is forcibly stopped by hardware by the microprocessor forcible stop signal 25 from the CPU unit abnormality processing control unit 18, and an illegal operation is performed. Make an emergency stop. In this case, the microprocessor 16 does not operate due to any external factors.

Further, in the CPU card 15, when the microprocessor 16 executes the main program, and when an abnormality is detected in the internal data processing of the CPU card 15, the microprocessor 16 cannot execute the abnormality processing program. Is abnormal, the CPU unit abnormality processing control device 18
Then, the execution of the main application of the microprocessor 16 is forcibly stopped by hardware by the microprocessor forcible stop signal 25, and the illegal operation is urgently stopped. In this case, the microprocessor 16 does not operate due to any external factors.
Other operations are the same as those in the above-described second embodiment, and a description thereof will not be repeated.

As described above, according to this embodiment,
When an abnormality requiring the main application of the microprocessor 16 to be stopped is detected in the expansion unit, the CPU that notifies the unit expansion card (master) 19 of the forced stop of the microprocessor 16 from the unit expansion card (slave) 29. A forced stop notification signal 27A, a CPU forced stop notification signal 21A for notifying an abnormality from the unit expansion card (master) 19 to the CPU unit abnormality processing controller 18, and a microprocessor 1 from the CPU unit abnormality processing controller 18
By providing the forced stop notification signal 25 for notifying the microprocessor 6 of the forced stop, the main application of the microprocessor 16 can be forcibly stopped, and illegal operations of IO control and network control can be suppressed.

[0074]

According to the present invention, there is provided an abnormality processing device in a distributed processing system including a CPU card for executing a main application program, an intelligent IO card for executing an IO control program, and an intelligent network card for executing a network control program. And an abnormality processing control unit that is provided in the distributed processing system and performs an abnormality process for an abnormality detected in the distributed processing system, and notifies the abnormality processing control unit of the abnormality detected in the CPU card. Card error notification means for intelligent IO
Intelligent IO card error notification means for notifying the error processing control means of an error detected in the card; intelligent network card error notification means for notifying the error processing control means of the error detected in the intelligent network card; CPU
A data transmission path abnormality notification means for notifying abnormality processing control means of an abnormality detected in data transfer processing between the card and the intelligent IO card and in data transfer processing between the CPU card and the intelligent network card. Is an abnormality processing device in a distributed processing system provided with a CPU card abnormality notification means for notifying an abnormality processing control means of an abnormality detected in a CPU card; Intelligent IO card error notification means for notifying a card error, and intelligent network card error notification for notifying the error of the intelligent network card from the intelligent network card to the error processing control means By providing a step, it is possible to perform abnormality processing control concentrates it is certain abnormal portion in the abnormal processing control unit.

Further, a CPU card, an intelligent I
The O card and the intelligent network card constitute one CPU unit.
The abnormal processing control can be performed intensively by the abnormal processing control means provided in the U unit.

The CPU card constitutes a CPU unit, and the intelligent IO card and the intelligent network card constitute an extension unit.
Since the CPU unit and the expansion unit are connected via the first unit expansion card provided in the U unit and the second unit expansion card provided in the expansion unit, it is detected in the CPU unit. The abnormality and the abnormality detected in the extension unit can be identified by using the plurality of abnormality notification means described above, which card has an abnormality, and quick and appropriate abnormality processing can be performed.

Further, since the abnormality processing control means is provided in the CPU card, each abnormality is specified by the plurality of notification means, and is collectively processed by the abnormality processing control means in the CPU card. Can be.

Further, since the abnormality processing control means is provided separately in the CPU card, the intelligent IO card, and the intelligent network card, the abnormality occurring in each card is processed in each card, and the processing result is obtained. Is notified to the CPU card, it is possible to recognize what kind of abnormality has occurred in the CPU card.

Further, the abnormality processing control means is provided in the CPU card, and receives the notification from the CPU card abnormality notification means and the data transmission path abnormality notification means to detect the abnormality detected in the CPU card and the data transfer processing. A CPU card error processing unit for executing an error process for the detected error, and a notification provided from the intelligent IO card error notification means, provided in the intelligent IO card, for detecting an error detected in the intelligent IO card. An intelligent IO card error processing unit for executing processing and notifying the result of the error processing to the CPU card error processing unit; and an intelligent network card provided in the intelligent network card, And executes error processing to the detected anomaly in Kukado, and intelligent network card abnormality processing unit for notifying the result of the abnormality processing CPU card abnormality processing unit is provided with the,
By providing an intelligent IO card error processing unit and an intelligent network card error processing unit for notifying the CPU card error processing unit provided on the CPU card of an error processing result in the intelligent IO card and the intelligent network card,
The CPU card can detect an abnormality of the intelligent IO card and the intelligent network card.

Further, the abnormality processing control means is provided in the CPU card of the CPU unit, and receives abnormality from the CPU card abnormality notification means and the data transmission path abnormality notification means, and detects abnormality and data transfer detected in the CPU card. A CPU unit error processing unit for executing an error process for an error detected in the process, and an intelligent IO card provided in the intelligent IO card of the expansion unit. An extended intelligent IO card error processing unit that executes error processing for abnormalities and notifies the CPU unit error processing unit of the result of the error processing, and an intelligent network card error An extended intelligent network card abnormality processing unit that receives an instruction from the informing means, executes abnormality processing for an abnormality detected in the intelligent network card, and notifies a result of the abnormality processing to the CPU unit abnormality processing unit; Unit expansion card abnormality processing that is provided in the second unit expansion card, executes abnormality processing for an abnormality detected in the second unit expansion card, and notifies the CPU unit abnormality processing unit of the result of the abnormality processing. And an extended intelligent IO card error processing section and an extended intelligent network card error processing section for processing abnormalities generated inside each card.
The card and the intelligent network card can each execute the abnormality processing.

Further, an abnormality processing control means is provided in the CPU card, and receives a notification from the CPU card abnormality notification means to respond to an abnormality detected in the CPU card.
CPU card abnormality processing unit for executing abnormality processing, and CPU
An intelligent IO card failure control unit, provided in the card, for executing an abnormality process for an abnormality detected in the intelligent IO card in response to a notification from the intelligent IO card abnormality notification unit, and storing a result of the abnormality process; , Provided in the CPU card,
An intelligent network card failure control unit that receives the notification from the intelligent network card abnormality notification unit, executes an abnormality process for the abnormality detected in the intelligent network card, and stores a result of the abnormality process. By providing an IO card failure control unit for storing that an error has occurred in the intelligent IO card and an intelligent network card failure control unit for storing that an abnormality has occurred in the intelligent network card, Card or intelligent network card can be specified.

Further, the abnormality processing control means is provided in the CPU card of the CPU unit, and receives the notification from the CPU card abnormality notification means and executes abnormality processing for the abnormality detected in the CPU card. A card error processing unit, a unit expansion card failure control unit provided in the CPU card of the CPU unit, for executing an error process for an error detected in the first unit expansion card, and storing a result of the error process. ,
Since the CPU unit has a unit expansion card (master) failure control unit for storing the fact that an abnormality has occurred in the expansion unit card (master), it is possible to identify the abnormality that has occurred in the unit expansion card (master). .

The abnormality processing control means further comprises a CP
A transmission path failure control unit, which is provided in the U-card and executes the abnormality processing for the abnormality detected in the data transfer processing in response to the notification from the data transmission path abnormality notification means, and stores the result of the abnormality processing. Since it is provided, an abnormality occurring in the data transmission path can be recognized by referring to the transmission path failure control unit.

Further, the abnormality processing control means is provided in the second unit expansion card of the expansion unit, and receives abnormality notification from the intelligent IO card abnormality notification means to perform abnormality processing on the abnormality detected in the intelligent IO card. And an extended intelligent IO card failure control unit that stores the result of the abnormal processing, and a second unit expansion card of the extension unit,
In response to the notification from the intelligent network card error notification means, an error processing is performed for the error detected in the intelligent network card, and an expanded intelligent network card fault control unit for storing the result of the error processing is provided. In the second unit expansion card, receiving the notification from the data transmission path error notification means, executing the error processing for the error detected in the data transfer processing in the expansion unit, and storing the result of the error processing And an extended transmission line failure control unit for detecting an abnormality of the data transmission line in the extended unit, so that the CPU card can control the extended transmission line failure control in the extended unit. By searching for the part It can be out.

Further, when an abnormality to be processed by the abnormal processing control means is detected in the distributed processing system and when the abnormal processing execution means is in an inoperable state in which the abnormal processing execution program cannot be executed, the abnormal processing control means Without the abnormality processing of the above, further comprising a forced stop means for forcibly stopping the execution of the main application program of the CPU card, if an abnormality that must stop the main application of the microprocessor is detected, It is possible to forcibly stop the main application of the microprocessor and suppress an illegal operation.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an abnormal processing control device in a distributed processing system according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of an abnormal processing control device in a distributed processing system according to a second embodiment of the present invention.

FIG. 3 is a partial block diagram illustrating a partial configuration of an abnormal processing control device in a distributed processing system according to a third embodiment of the present invention.

FIG. 4 is a partial block diagram illustrating a partial configuration of an abnormal processing control device in a distributed processing system according to a fourth embodiment of the present invention.

FIG. 5 is a partial block diagram showing a partial configuration of an abnormal processing control device in a distributed processing system according to a fifth embodiment of the present invention.

FIG. 6 is a partial block diagram showing a partial configuration of an abnormal processing control device in a distributed processing system according to a sixth embodiment of the present invention.

FIG. 7 is a partial block diagram illustrating a partial configuration of an abnormal processing control device in a distributed processing system according to a seventh embodiment of the present invention.

FIG. 8 is a partial block diagram illustrating a partial configuration of an abnormal processing control device in a distributed processing system according to an eighth embodiment of the present invention.

FIG. 9 is a block diagram showing a configuration of an abnormal processing control device in a distributed processing system according to Embodiment 9 of the present invention.

FIG. 10 is a block diagram showing a configuration of an abnormality processing device in a distributed processing system according to Embodiment 10 of the present invention.

FIG. 11 is a block diagram illustrating a configuration of an abnormality processing device in a conventional distributed processing system.

[Explanation of symbols]

1,14 CPU unit, 2,15 CPU card,
3,16 Microprocessor, 4,17 Main controller, 5,18 CPU unit abnormality processing controller, 5
A, 47 CPU unit abnormality processing control device, 6, 31
Intelligent IO card, 6A, 31A Intelligent IO card error processing controller, 7, 30 Intelligent network card, 7A, 30A Intelligent network card error processing controller,
8 CPU unit transmission path abnormality notification signal, 9, 34, 6
0 Intelligent IO card error notification signal, 10,
33, 61 Intelligent network card error notification signal, 11, 23 Main controller error notification signal, 1
2, 24 CPU card error notification signal, 13, 25 Microprocessor forced stop signal, 19 unit expansion card (master), 20, 21 unit expansion card (master) error notification signal, 26, 27, 62 unit expansion card (slave) Error notification signal, 28 expansion unit, 29 unit expansion card (slave), 29A
Unit expansion card (slave) error processing controller, 3
2 Expansion unit transmission path error notification signal, 47A CPU
Unit failure processing controller, 48, 48A CPU card major failure controller, 49, 49A CPU card minor failure controller, 50 IO card failure controller, 50A Unit expansion card (master) failure controller, 51 network card failure controller 51A CPU unit transmission path failure control device, 52, 52A CPU card light failure notification signal, 53, 58 IO card failure control device, 5
3A Unit expansion card (master) failure controller, 5
4,59 Network card failure control device, 54A
CPU unit transmission line abnormality notification signal, 55, 56, 55
A, 56A CPU card abnormality notification signal, 57 expansion unit abnormality processing control device, 59A expansion unit transmission line failure control device, 61A expansion unit transmission line abnormality notification signal.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Haruhiro Minezaki 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation F-term (reference) 5B083 AA04 BB01 CC02 CD01 CE01 EE07 GG01 5K032 BA04 DA01 DA11 DB19 DB22 DB24 EA04

Claims (12)

[Claims] 1. An abnormality processing apparatus in a distributed processing system including a CPU card for executing a main application program, an intelligent IO card for executing an IO control program, and an intelligent network card for executing a network control program, An abnormality processing control means provided in the distributed processing system for executing an abnormality processing for the abnormality detected in the distributed processing system; and notifying the abnormality processing control means of the abnormality detected in the CPU card. And an intelligent IO card abnormality notifying means for notifying the abnormality processing control means of an abnormality detected in the intelligent IO card. An intelligent network card error notification means for notifying the error processing control means of the detected error, a data transfer process between the CPU card and the intelligent IO card, and a communication between the CPU card and the intelligent network card. An abnormality processing device in a distributed processing system, comprising: a data transmission path abnormality notification unit for notifying the abnormality processing control unit of an abnormality detected in data transfer processing. 2. The abnormality processing apparatus according to claim 1, wherein said CPU card, said intelligent IO card, and said intelligent network card constitute one CPU unit. 3. The CPU card constitutes a CPU unit, the intelligent IO card and the intelligent network card constitute an extension unit, and a first unit extension card provided in the CPU unit and the extension unit 2. The abnormality processing apparatus according to claim 1, wherein the CPU unit and the expansion unit are connected via a second unit expansion card provided in the system. 4. An abnormality processing apparatus in a distributed processing system according to claim 1, wherein said abnormality processing control means is provided in said CPU card. 5. The apparatus according to claim 1, wherein the abnormality processing control means is provided separately in the CPU card, the intelligent IO card, and the intelligent network card. An abnormal processing device in the distributed processing system according to the above. 6. The abnormality processing control means is provided in the CPU card, and receives the notification from the CPU card abnormality notification means and the data transmission path abnormality notification means, and detects an abnormality detected in the CPU card. And a CPU card error processing unit for executing an error process for an error detected in the data transfer process; and receiving the notification from the intelligent IO card error notification unit provided in the intelligent IO card, An intelligent IO card abnormality processing unit that executes abnormality processing for an abnormality detected in the intelligent IO card, and notifies a result of the abnormality processing to the CPU card abnormality processing unit; Intelligent network car Receiving the above notification from the abnormality notification means, executes an abnormality process for the abnormality detected in the intelligent network card, and reports the result of the abnormality process to the CP.
The error processing device according to any one of claims 1 to 5, further comprising: an intelligent network card error processing unit that notifies the U card error processing unit. 7. The abnormality processing control means is provided in the CPU card of the CPU unit,
CPU unit abnormality which receives the notification from the CPU card abnormality notification means and the data transmission path abnormality notification means and executes abnormality processing for the abnormality detected in the CPU card and the abnormality detected in the data transfer processing. A processing unit, provided in the intelligent IO card of the expansion unit, receiving the notification from the intelligent IO card abnormality notification means,
An extended intelligent IO card abnormality processing unit for executing abnormality processing for an abnormality detected in the O card and notifying a result of the abnormality processing to the CPU unit abnormality processing unit; Receiving the notification from the intelligent network card error notification means, executing an error process for an error detected in the intelligent network card, and notifying a result of the error process to the CPU unit error processing unit. An extended intelligent network card error processing unit, which is provided in the second unit expansion card of the expansion unit and executes an error process for an error detected in the second unit expansion card; The abnormal processing device according to any one of claims 1, 3 and 5, further comprising: a unit expansion card abnormal processing unit for notifying a result of the processing to the CPU unit abnormal processing unit. . 8. The abnormality processing control means is provided in the CPU card, and executes abnormality processing for an abnormality detected in the CPU card in response to the notification from the CPU card abnormality notification means. CP
A U-card abnormality processing unit, provided in the CPU card, receiving the notification from the intelligent IO card abnormality notification means, executing abnormality processing for an abnormality detected in the intelligent IO card, An intelligent IO card failure control unit for storing a processing result; and an abnormal process for an abnormality detected in the intelligent network card provided in the CPU card and receiving the notification from the intelligent network card abnormality notification means. And an intelligent network card failure control unit that stores a result of the abnormality processing. 6. The abnormality processing apparatus according to claim 1, further comprising: . 9. The abnormality processing control means is provided in the CPU card of the CPU unit,
In response to the notification from the CPU card abnormality notification means, for the abnormality detected in the CPU card,
A CPU card error processing unit that executes an error process; provided in the CPU card of the CPU unit;
4. A unit expansion card failure control unit that executes abnormality processing for an abnormality detected in the first unit expansion card and stores a result of the abnormality processing. An abnormal processing device in the distributed processing system according to the above. 10. The abnormality processing control means is further provided in the CPU card, receives the notification from the data transmission path abnormality notification means, and performs an abnormality processing on the abnormality detected in the data transfer processing. 9. The abnormality processing apparatus according to claim 8, further comprising a transmission line failure control unit that executes the error processing and stores a result of the abnormality processing. 11. The abnormality processing control means is provided in the second unit expansion card of the expansion unit, and receives the notification from the intelligent IO card abnormality notification means, and
An extended intelligent IO card failure control unit for executing abnormality processing for an abnormality detected in the card and storing a result of the abnormality processing; and an intelligent intelligent card provided in the second unit expansion card of the expansion unit. Receiving the notification from the network card error notification means, executing an error process for the error detected in the intelligent network card, and storing the result of the error process; A unit provided in the second unit expansion card of the unit, receives the notification from the data transmission path abnormality notification unit, and executes an abnormality process for the abnormality detected in the data transfer process in the expansion unit. Together with the above abnormalities Abnormality processing apparatus in a distributed processing system according to claim 3, characterized in that it comprises, an extended transmission line fault control unit for storing the results of. 12. When the abnormality to be processed by the abnormality processing control means is detected in the distributed processing system, and when the abnormal processing execution means cannot execute the abnormal processing execution program, the operation is disabled. 11. The system according to claim 1, further comprising a forced stop unit for forcibly stopping execution of the main application program of the CPU card without going through the abnormality processing of the abnormality processing control unit. Error handling device in a distributed processing system.