JPH053479A - Controller - Google Patents

Abstract

PURPOSE:To offer the controller which analyzes a cause to a fault quickly when a controller on a network has the fault. CONSTITUTION:A utility 9a of its own station outputs fault identification 6 to a network 1 through a communication processing section 4a on the occurrence of a fault of a controller 2a on the network and the identification reaches communication processing sections 4b,4c of normal controllers 2b,2c. The identification is stored in memories 5a,5b in its own station by utilities 10b,10c of the controllers 2b,2c. The content is displayed on monitors 7b,7c and printed out by printers 8b,8c.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a controller used in a communication system for performing data communication between a plurality of controllers arranged on a common network.

[0002]

2. Description of the Related Art FIG. 4 is a block diagram showing a conventional communication system, in which 1 is a network, 2a, 2b,
A controller 2c is connected to the network 1 and transmits and receives data to and from each other.

In the controller 2a, 3a is a control processing unit for performing main control in the controller 2a, 4a is a communication processing unit for inputting / outputting data to / from the other controllers 2b, 2c, and 5a is a memory for storing data. Reference numerals 6 and 6 denote abnormality information relating to the failure stored in the memory 5a when a failure occurs in the controller 2a, 7a denotes a monitor for displaying the data and the abnormality information 6, and 8a denotes a printer for printing out the data and the abnormality information 6. Is. The other controllers 2b and 2c have the same configuration as the controller 2a.

Next, the operation will be described. If any abnormality occurs during execution of control in the controller 2a, the control processing unit 3a stops normal control and stores the abnormality information 6 regarding the content of the abnormality in the memory 5a. The abnormality information 6 in the memory 5a is displayed on the monitor 7a or the printer 8
Output from a and analyze. Other controllers 2b, 2c
When an error occurs in the controller 2
The same operation as in the case of a is performed.

[0005]

Since the conventional controller is constructed as described above, the same network 1 is used.
If an error occurs in the above multiple controllers, specialized maintenance personnel must go to each controller where the error occurred and analyze it.
Prompt treatment cannot be performed and multiple personnel are required.
There were problems such as very poor maintainability.

The present invention has been made in order to solve the above problems, and even if any controller on the same network becomes abnormal, another normal controller can analyze the abnormal information. The purpose is to get.

[0007]

According to a first aspect of the present invention, when an abnormality occurs in a controller on a network, the controller transmits the abnormality information to the other controller and the abnormality from the other controller. It is designed to store information.

A controller according to a second aspect of the present invention requests the abnormality information of the controller stored in another controller and stores the abnormality information sent in response to the request. Is.

[0009]

The controller according to the invention of claims 1 and 2 is
Abnormality information from multiple controllers connected on the network can be analyzed by other normal controllers, so quick measures can be taken when abnormalities occur and one controller can always monitor abnormalities. .

[0010]

EXAMPLES Example 1. An embodiment of the invention of claim 1 will be described below. In FIG. 1, 1 is a controller 2
A network connecting a, 2b, 2c, 4a, 4
b and 4c are communication processing units that perform communication between the controllers 2a, 2b and 2c, and 3a, 3b and 3c are controllers 2a and
2b, 2c control processing unit for performing main control, 5a, 5b,
5c is a memory for storing data, 6 is abnormality information of the controller 2a stored in the memory 5a, 7a, 7b, 7c
Is a monitor for displaying data, and 8a, 8b, 8c are printers for dump output.

Reference numerals 9a, 9b and 9c are abnormality information output utilities as abnormality information output means for outputting abnormality information,
Reference numerals 10a, 10b and 10c denote memory storage utilities as memory storage means for storing abnormality information received from other controllers in the memories 5a, 5b and 5c.

Next, the operation will be described. In FIG. 1, for example, when an abnormality occurs in the controller 2a,
Abnormality information output utility 9a in controller 2a
Collects abnormality information and transmits it to the normal controllers 2b and 2c on the network 1 through the communication processing unit 4a.
In the controllers 2b and 2c on the receiving side, the communication processing unit 4b,
Memory storage utility 1 after 4c receives the error information
The data 0b and 10c store the data in the areas corresponding to the respective controller numbers in the memories 5b and 5c in the own station, as shown in FIG. The abnormality information in the memories 5b and 5c is output by the monitors 7b and 7c and the printers 8b and 8c for analysis.

Example 2. In the first embodiment described above, the method of transmitting the destination of the abnormality information to the normal controller on the network is used. However, in response to the abnormality information transmission request from the normal controller, the abnormality information is transmitted to the requesting controller It is also possible to adopt the method of doing. FIG. 3 shows an embodiment of the invention of claim 2 in that case. In FIG.
Reference numerals 11a, 11b and 11c denote push button switches for issuing a data transmission request.

Next, the operation will be described. In FIG. 3, when an abnormality occurs in the controller 2a, the abnormality information output utility 9a in the controller 2a collects the abnormality information 6 and stores it in the memory 5a. Then, for example, when the push button switch 11b is pushed by another normal controller 2b, the control processing unit 3b outputs push button switch pushing information to the network 1 through the communication processing unit 4b. The control processing unit 3a of the controller 2a recognizes which controller's push button switch is pressed through the communication processing unit 4a.

Then, the abnormality information output utility 9a transmits the abnormality information 6 to the controller 2b which has requested the transmission through the communication processing section 4a. Controller 2 on the receiving side
In b, after the communication processing unit 4b receives the abnormality information, the memory storage utility 10b stores the data in the area corresponding to each controller number of the memory 5b in the own station as shown in FIG. The abnormality information in the memory 5b is monitored by the monitor 7b.
And output to the printer 8b for analysis.

Embodiment 3. In the second embodiment, the push button switches 11a, 11b, and 11c are pressed to request the transmission of the abnormality information. However, the same effect can be obtained by using a transmission request utility by software instead of the push button switches.

[0017]

As described above, according to the first and second aspects of the invention, since the abnormality occurrence information of the controller is transmitted to all the normal controllers connected to the network, the abnormality information is transmitted. It can be output immediately from other controllers, and can quickly analyze factors such as the cause of anomalies, while one controller can monitor anomalous conditions, improving maintainability and saving labor for personnel. .

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a controller according to an embodiment of the present invention.

FIG. 2 is a configuration diagram showing a storage state of data in a memory.

FIG. 3 is a configuration diagram showing a controller according to an embodiment of the invention of claim 2;

FIG. 4 is a configuration diagram showing a conventional controller.

[Explanation of symbols]

1 Network 2a, 2b, 2c Controller 5a, 5b, 5c Memory 6 Abnormality information 9a, 9b, 9c Abnormality information output utility (abnormality information output means, memory storage means) 10a, 10b, 10c Memory storage utility (memory storage means, abnormality Information output means) 11a, 11b, 11c Push button switches (abnormality information requesting means)

Claims (2)

[Claims] 1. A controller used in a communication system, wherein a plurality of controllers are provided on a common network and data is transmitted and received between the controllers, and abnormality information relating to an abnormality that has occurred in the controller is provided. An abnormality information output means for transmitting to another controller via the network, and a memory storage means for storing the abnormality information of the other controller sent from the other controller via the network in a memory are provided. controller. 2. A controller used in a communication system in which a plurality of controllers are provided on a common network and data is transmitted and received between the controllers, and abnormal information relating to an abnormality occurring in the controller is stored. Memory, abnormality information requesting means for requesting abnormality information stored in the memory of the other controller, and abnormality information of the other controller sent in response to the request of the abnormality information requesting means to the memory. Memory storing means for storing the abnormality information output means for transmitting abnormality information of the own controller stored in the memory to the other controller via the network in response to a request from the abnormality information requesting means of the other controller. The controller characterized by having and.