JPH03188543A - Data processor - Google Patents

Abstract

PURPOSE:To add, change, and delete the other parties of communication without stopping the operation of a system by providing data communication path set and release monitor means and dynamically defining a network during the operation of the system. CONSTITUTION:A main storage device 6 is provided with a communication control table storage area 30. A data communication path set monitor means 10 is provided which takes out a general buffer from the communication control table storage area 30 and sets a data communication user 40, the attribute of the other party of communication, and a data communication path identifier to send a data communication path set request to a device of the other party and informs the data communication user 40 of the identifier and setting of a data communication path. A data communication path release monitor means 20 is provided which monitors events occurring in the data communication path set period and returns the general buffer of the pertinent data communication path to the communication control table storage area 30 at the time of detecting an event. Thus, the other parties of communication are added, changed, and deleted without stopping the system.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is utilized for data processing in a data communication system. The present invention relates to network definition for data processing devices that construct a data communication system.

〔overview〕

The present invention eliminates system creation work for network definition by enabling network definition to be performed dynamically during system operation in a data processing device that constructs a data communication system.
This allows adding, changing, and deleting communication partners without stopping system operation.

[Conventional technology]

Conventionally, when constructing a data communication system, each data processing device fixedly defines a network centered on its own device at the time of system generation before the system is put into operation.

Therefore, if it is necessary to add, change, or delete a communication partner after the system has started operating, the data processing device must be temporarily stopped, and the network definition associated with the addition, change, or deletion of the communication partner must be re-defined by system generation work. was.

[Problem that the invention seeks to solve]

In the conventional technology described above, when a communication partner is added, changed, or deleted (for example, a terminal is added, changed, or deleted) in the network definition centered on the own device, the system is temporarily stopped and the system creation process is restarted. Therefore, it is necessary to redo the network definition when adding, changing, or deleting communication partners.

Due to the temporary suspension of the data processing equipment, data communication cannot be performed during this period, and since this period is generally long, timely data communication cannot be performed, and the network There is a drawback that data communication cannot be performed with the communication partner who is being added or changed until the redefinition is completed.

The present invention solves these problems, and aims to provide a device that can add, change, and delete communication partners without stopping the system.

[Means for solving problems]

The present invention provides a data processing device that is connected to a partner device via a communication line and includes a human power device, an output device, a central processing unit, and a main storage device, wherein the main storage device includes a network address and an operation attribute. A communication control table storage area is provided to manage a general-purpose buffer in which the attributes of the partner device and an identifier that uniquely identifies the data communication bus are set, and the general-purpose buffer is retrieved from this communication control table storage area, and the data communication user, Data communication bus setting monitoring means that sets attributes of a communication partner and a data communication bus identifier, sends a data communication bus setting request to the partner device, and notifies a data communication user of the data communication bus identifier and settings. and data communication bus release monitoring means for monitoring events that occur during a data communication bus setting period and returning the general-purpose buffer of the corresponding data communication bus to the communication control table storage area when an event is detected. It is characterized by having

[Effect]

When a data communication user requests data communication bus settings, a general-purpose buffer is acquired, the attributes of the communication partner including the data communication user, network address, and operational attributes, and the data communication bus identifier are set, and the data communication bus identifier is set. Requests the other party to set up a data communication bus, and notifies the data communication user of the data communication bus identifier.

Also, when a communication partner requests data communication bus settings, it similarly obtains a general-purpose buffer, sets the data communication user, communication partner attributes, and data communication bus identifier, and sends these information to the data communication user. Notifies the configuration of the data communication bus with information on the data communication bus.

When the release of the data communication bus is detected, the general-purpose buffer in which the corresponding data communication bus is set is returned to the communication control table storage area.

This eliminates the system creation work for network definition, and allows communication partners to be added, changed, and deleted without stopping system operation.

〔Example〕

Next, embodiments of the present invention will be described based on the drawings.

The figure is a block diagram showing the configuration of an embodiment of the present invention.

A data processing device 1 according to an embodiment of the present invention is connected to a partner device (not shown) via a communication line 2, and includes an input device 3, an output device 4,
Comprising a central processing unit 5 and a main memory 6, the main memory 6 manages a general-purpose buffer in which attributes of a communication partner including a network address and operational attributes and an identifier that uniquely identifies a data communication bus are set. A communication control table storage area 30 is provided for data communication user 4, and a general-purpose buffer is taken out from this communication control table storage area 30.
0, sets the attributes of the communication partner and the data communication bus identifier, sends a data communication bus setting request to the other party device (not shown), and notifies the data communication user 40 of the data communication bus identifier and settings. Data communication bus setting monitoring means 10 and data that monitors events that occur during the data communication bus setting period and returns the general-purpose buffer of the corresponding data communication bus to the communication control table storage area 30 when an event is detected. communication bus release monitoring means 20.

Next, the operation of the embodiment of the present invention configured as described above will be explained.

First, the operation at the timing when a data communication bus setting is requested from the data communication user 40 will be explained.

When the data communication user 40 requests the setting of a data communication bus, information on the attributes (network address, operational attributes) of the data communication user 40 and the communication partner is passed to the data communication bus setting monitoring means 10.

The data communication bus setting monitoring means 10 requests and acquires a general-purpose buffer from the communication control table storage area 30, and sets the attributes (network address, operation attributes) of the data communication user 40 and the communication partner on the general-purpose buffer. Furthermore, an identifier for uniquely identifying the data communication bus is determined and set, and a communication control table is created.

Furthermore, the communication line 2 requests the communication partner to set up a data communication bus with information about the data communication user 40 and the attributes (network address, operational attributes) of the communication partner.
At the same time, the data communication user 40 is notified of the data communication bus identifier.

The communication control table created in this way is used for data communication until the corresponding data communication bus is released.

Next, the operation at the timing when a data communication bus setting is requested from the communication partner will be explained.

When the communication partner requests data communication bus settings,
Information on the attributes (network address, operational attributes) of the data communication user 40 and the communication partner is passed from the communication line 2 side to the data communication bus setting monitoring means 10.

The data communication bus setting monitoring means 10 requests and acquires a general-purpose buffer from the communication control table storage area 30, and sets the attributes (network address, operation attributes) of the data communication user 40 and the communication partner on the general-purpose buffer. Furthermore, an identifier for uniquely identifying the data communication bus is determined and set, and a communication control table is created.

Furthermore, the data communication user 40 is provided with attributes (network address,
The configuration of the data communication bus is notified with information on the data communication bus identifier (operational attributes) and the data communication bus identifier.

The communication control table created in this way is used for data communication until the corresponding data communication bus is released.

Next, the operation at the timing when release of the data communication bus is detected will be explained.

The communication control table (general-purpose buffer) created at the timing when data communication bus settings are requested from the data communication user 40 or at the timing when data communication bus settings are requested from the communication partner detects the release of the data communication bus. It is necessary to return the data to the communication control table storage area 30 at the same timing. The release of this data communication bus is detected when one of the following four events occurs.

・When the communication partner requests release of the data communication bus and the data communication bus is released. ・When the data communication user 40 requests release of the data communication bus and the data communication bus is released. ・No communication. When the monitoring time is exceeded and the data communication bus is released, - When a communication failure occurs during data communication, the data communication bus release monitoring means 20 always monitors the occurrence of the above event during the setting period of the data communication bus. , returns the communication control table (general-purpose buffer) of the corresponding data communication bus to the communication control table storage area 30 at the detected timing.

〔Effect of the invention〕

As explained above, according to the present invention, network definition can be performed dynamically during system operation, thereby eliminating the need for system generation work for network definition. There is no need to stop. As a result, the entire system will be temporarily stopped and data communication will not be possible during that period, and the period will be a long time, making it impossible to perform data communication in a timely manner.Additionally, additions and changes will not be made until the network definition is redone. Problems such as not being able to perform data communication with a communication partner that is
This has the effect of building a highly flexible network.

Further, since only the communication control tables corresponding to the existing data communication buses are generated, there is an advantage that the main storage device can be used efficiently.

[Brief explanation of drawings]

The figure is a block diagram showing the configuration of an embodiment of the present invention. 1... Data processing device, 2... Communication line, 3...
Input device, 4... Output device, 5... Central processing unit,
6... Main storage device, 10... Data communication bus setting monitoring means, 2°... Data communication bus release monitoring means, 30
...Communication control table storage area, 40...Data communication user.

Claims (1)

[Claims] 1. An input device connected to a partner device via a communication line;
In a data processing device including an output device, a central processing unit, and a main memory device, attributes of a partner device including a network address and operational attributes, and an identifier uniquely identifying a data communication bus are set in the main memory device. A communication control table storage area is provided to manage the general-purpose buffers to be used, the general-purpose buffers are retrieved from this communication control table storage area, the attributes of the data communication user, the communication partner, and the data communication bus identifier are set, and the information is sent to the other device. a data communication bus setting monitoring means for sending a data communication bus setting request and notifying a data communication user of the data communication bus identifier and setting; and monitoring events that occur during the data communication bus setting period; A data processing device comprising: data communication bus release monitoring means for returning a general-purpose buffer of a corresponding data communication bus to the communication control table storage area when an event is detected.