JP2001306142A - Control system for abnormal program operation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control system for the abnormal operation, which can refer to and collate the abnormal operation of a decentralized control system in real-time. SOLUTION: This system has the information collecting sections 1a, 2a which recognize the abnormal operation information in the computers 1, 2 which constitute the decentralized control system, the information controlling sections 1c, 2c with the notification decision tables 1b, 2b for judging the necessity of the notification of the abnormal operation information, an information receiving section 10a which receives the abnormal operation information on the communication network in a computer 10 which receives the notification, an information recording section 10b which records the information in a log file and an information displaying section 10c which displays the information. On the basis of the criterion of the notification decision tables 1b, 2b, the necessity of the notification of the abnormal operation information is judged, the notification judged the necessity is sent from the information transmitting sections 1d, 2d of the computer to the computer 10 which receives the notification and summarized on the log file.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a program operation abnormality management system for managing operation abnormality information generated from a plurality of processes controlled by a cooperative operation via a communication network in a distributed control system.

[0002]

2. Description of the Related Art FIG. 4 schematically shows a configuration of a distributed control system when used for process control of steel, chemistry, electric power, and the like. That is, the distributed control system includes a plurality of control devices each including the sensor 21, the actuator 31, and the computer 1.
, And the control target is controlled by a cooperative operation between the computers. Conventionally, in such a distributed control system, as shown in FIG. 5, individual control processes operate on a plurality of computers (1, 2, 3) connected by a communication network and output from the control processes. When the operation abnormality information is recorded, it is recorded on log files (1L, 2L, 3L) provided for each computer. In the distributed control system, since a plurality of computers perform cooperative operation, in order to identify the cause of the operation abnormality, the program developer 12 refers to and checks the operation abnormality information in a log file provided for each computer. (1L, 2L, 3L) are opened one by one to investigate the cause and solve the problem.

[0003]

In the conventional distributed control system, it is necessary to refer to and collate operation abnormality information recorded in a log file for each computer in order to identify the cause of the operation abnormality. When abnormal information occurs, it is difficult to refer to and collate in real time to determine the cause and solve the problem. Also, when examining and collating the operation abnormality information in the examination after the occurrence of the operation abnormality, it is necessary to collect the operation abnormality information recorded in the log file of each computer in one place. The present invention has been made in view of such circumstances, and has as its object to provide a program operation abnormality management system that can refer to and collate operation abnormality information in a control process in real time.

[0004]

In order to achieve the above object, a program operation abnormality management apparatus according to the present invention is provided in a distributed control system in which a plurality of computers are connected to a communication network and a control target is controlled by a cooperative operation. Holding a notification determination table that records a notification destination computer name and a notification determination criterion for notifying an operation abnormality in a storage unit of each computer, and holds an information recording unit that records operation abnormality information in a storage unit of the notification destination computer. And a program operation abnormality management unit configured to collect the operation abnormality information determined in the notification determination table of each computer in the information recording unit of the notification destination computer. The program operation abnormality management system of the present invention is configured as described above, and the program operation abnormality of the entire distributed control system can be referenced and collated in real time on the notification destination computer.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of a program operation abnormality management system according to an embodiment. This program operation abnormality management system includes an information acquisition unit 1 which receives operation abnormality information from computers 1 and 2 constituting a distributed control system.
a, 2a and a notification determination table 1 for determining whether or not to notify the notified destination computer 10 of the received operation abnormality information.
b, 2b, the information management units 1c, 2c for managing the output of the operation abnormality information, and the information transmission units 1d, 2d for notifying the designated notification destination computer 10 of the operation abnormality information.
And an information receiving unit 10a for receiving information transmitted to the notification destination computer 10, an information recording unit 10b for recording operation abnormality information, and an information display unit 10c for displaying operation abnormality information. Equipped with abnormality management means.

[0006] Information acquisition unit 1 of the computers 1 and 2
a and 2a recognize operation abnormality information generated in each process during execution of the program, and
c, 2c to process the operation abnormality information. The information management units 1c, 2c store the contents of the received operation abnormality information in the notification determination tables 1b, 2b set as shown in FIG. It is to collate, determine whether or not to notify the notification destination computer 10, and send the operation abnormality information for which the notification needs to be notified to the information transmitting units 1d and 2d. The information transmitting units 1d and 2d transmit the ID number of the computer in which the operation abnormality has occurred and the operation abnormality data to the notification destination computer 10 designated via the communication network 11.
To send to.

[0007] The information receiver 10 of the notification destination computer 10
"a" is for receiving operation abnormality information on the communication network 11, and the information recording unit 10b is for recording operation abnormality information in the storage unit. The information display unit 10c displays the abnormal operation information of the information storage unit 10b on a liquid crystal display or a CRT in real time.

Next, an output management process of the operation abnormality information will be described with reference to a notification determination table of FIG. 2 and a flowchart of FIG. The information acquiring units 1a and 2a of the computers 1 and 2 constantly monitor the occurrence of the operation abnormality information (S1). For example, when an operation abnormality occurs in a certain process of the computer 1 (FIG. 1) during the execution of the program, the information The acquisition unit 1a acquires the operation abnormality information, adds an ID number for identifying the computer in which the operation abnormality has occurred and a flag indicating the importance to the operation abnormality information, and sends the information to the information management unit 1c (S2). .

The information management unit 1c recognizes the operation abnormality information and stores the notification determination table 1b.
(FIG. 2) is read from the storage unit (S3), the importance flag of the operation abnormality information is compared with the importance flag of the notification determination table, and whether or not a notification determined according to the importance is to be transmitted is determined. The command is read (S4). For example, when the operation abnormality information corresponds to the daily report output abnormality as shown in FIG. 2 and the importance flag is 2, the operation abnormality information is transmitted to the information transmission unit 1d because the operation abnormality information corresponds to a command to be notified. The information transmitting unit 1d further attaches the ID number of the notification destination computer 10, the ID number of the computer in which the operation abnormality has occurred, and the occurrence time to the operation abnormality information, and transmits the information to the communication network 11 (S5). When the operation abnormality information is an alarm output abnormality, the information determination unit 1c does not send the operation abnormality information to the information transmission unit 1d because the notification determination table 1b corresponds to a command not to be notified, and the information management unit 1c continuously operates. Monitor the occurrence of error information.

On the other hand, the information receiving unit 10a monitors the operation abnormality information on the communication network 11 by executing the program of the computer 10 (FIG. 1) (S6). (S7), and collectively records the operation abnormality information from another computer together with the operation abnormality information from another computer (S7), and displays the series of operation abnormality information on the screen of the information display unit in the order of occurrence time (S8).

[0011] From the operation error information of all computers arranged in the order of occurrence time in this way, complicated operation error information generated by cooperative operation between computers can be grasped in real time, and problem investigation can be performed efficiently. be able to. In the above embodiment, the number of computers is two for simplicity of explanation, but the number is not limited to two.

[0012]

According to the program operation abnormality management device of the present invention, the complexity of aggregation can be eliminated, and operation abnormality information can be referenced and collated in real time. For this reason, it is easy to find the cause of the failure, and it is also easy to confirm the operation of the system and guess the cause of the failure even on a computer at a remote place.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a program operation abnormality management system according to an embodiment of the present invention.

FIG. 2 is a notification determination table according to the present invention.

FIG. 3 is a flowchart illustrating the operation of the present invention.

FIG. 4 is a schematic configuration diagram of a distributed control system.

FIG. 5 is a configuration diagram of a conventional distributed control system.

[Explanation of symbols]

 1, 2, 3 ... computer 1a, 2a ... information acquisition unit 1b, 2b ... information management unit 1c, 2c ... information transmission unit 1d, 2d ... notification determination table 1L, 2L, 3L ... log file 10 ... notification destination computer 10a ... Information receiving unit 10b Information recording unit 10c Information display unit 11 Network 12 Program developer

Claims (1)

[Claims] In a distributed control system in which a plurality of computers are connected to a communication network and a control target is controlled by a cooperative operation, a notification destination computer name and a notification determination criterion for notifying an operation abnormality are stored in a storage unit of each computer. A program operation abnormality management unit that holds an information recording unit that records the operation abnormality information in the storage unit of the notification destination computer, and the operation abnormality that is determined in the notification determination table of each computer. A program operation abnormality management system, wherein information can be collected in the information recording unit of the notification destination computer.