JPS6292543A - Address management system - Google Patents

Abstract

PURPOSE:To attain address management suitable for the network by providing a function of a master station to one of terminal equipment group and making the other terminal devices subordinate as a slave station, updating the address at the master station and informing the updating. CONSTITUTION:The master terminal equipment 4 and plural terminal equipments 1-3 operated as slave stations subordinated to the master station are connected to a system line 16. In updating the address of the terminal equipment 2, a new logical unit number L5, a physical unit number P5 and a base address A5 of the terminal equipment 2 are inputted from a console 13 of the terminal equipment 4 and a control section 14 revises the content of an address table 12 based on the input. Then the control section 14 outputs a table updating end information E4 to input a transmission command 15 from the console 13. The control section 14 receiving the command 15 sends the table information 19 whose table 12 is revised to the terminal equipments 1-3 by a multiple address communication means. The address tables 7-9 of the terminal equipments 1-3 are revised by using the information 19.

Description

[Detailed Description of the Invention] [Summary] LAN (Local Area Network)
In the system, when the address of a terminal device is added or changed, the terminal device itself makes additional changes to the address table and sends the new address table information to other terminal devices to update the address of the terminal device. It made it easier.

[Industrial application field]

The present invention relates to an improvement in an address management method for managing addresses of terminals in a LAN system, etc. In a LAN system, there is a need to simplify processing operations when additions or changes are made to address information of a terminal.

[Conventional technology]

A conventional example will be explained using figures. FIG. 4 is a block diagram illustrating a conventional example.

In the LA system where the terminals 1 to 3 are connected to the line 16, for example, if an additional change occurs in the address of the terminal, on the host (HO8T) side of the center.

Setting information for all terminals (Network-Generation)
n) is required. Traditionally, to avoid this setting work,
The method used was to individually set the address information for each terminal. This will be explained with reference to FIG. 4. For example, in the terminal 2, the operator uses the console 5 to check all the terminal's logical machine numbers, ~L, and physical machine numbers P.
, ~P, fixed information (pace address unique to the terminal) A, etc. are input to the node. The control unit 6 inputs the logical machine numbers L1 to L and the physical machine numbers P1 to P.
, is stored in the address table 7.

Such address setting work is also performed on the other terminals 1 and 3. That is, a method has been adopted in which addresses are registered and set by inputting the same information in all terminals 1 to 3.

[Problems that the invention attempts to solve] As is clear from the above, the conventional method does not require the setting of address information for each terminal, but rather requires manual input for each terminal. There was a problem that input errors occurred.

[Failure to solve the problem]

FIG. 1 is a block diagram of the principle of the present invention. The present invention provides a communication system having a group of terminals having an address table 7 in which address information 17 related to all terminals connected to a line 16 is stored, and equipped with means for broadcast communication between the terminals. The terminals 1 and 2 are provided with means for updating the address table based on the input update information 18 and means for updating the address table 7 based on the received address table information 19.

[Effect]

When a change or addition occurs to the address information in at least one terminal 2 of the terminal group, the control unit 6 in the terminal 2 updates the address table 17 based on the input update information 18, and then updates the address table 17 based on the input update information 18. , table information after the update @
19 is broadcasted to each terminal other than the terminal 2.

Furthermore, in the present invention, one terminal among a group of terminals has the function of a master station, all terminals other than this terminal are subordinate as slave stages, and when updating an address, the master stage is disabled. The address is updated and the updated information is notified to the slave stage run.

〔Example〕

FIGS. 2 and 3 are diagrams illustrating an embodiment of the present invention.
This is a diagram. Note that Figure 2 shows terminal device 1 with the same functions.
3 is connected, while FIG. 3 shows the mask (M
This is an example in which a terminal device 1 serving as an aster is connected to slave terminal devices 2 and 3 that are subordinate to the terminal device 1.

First, the example shown in FIG. 2 will be explained. In a system in which terminals 1 to 3 are connected, each terminal's address table 7.8
and 9 contains address information of all the terminals, that is, the logical machine number and physical machine number P of terminal machine 1, the logical machine number and physical machine number P of terminal machine 2, and terminal machine 3. logical machine number,
and physical machine number P are stored.

When the address changes on terminal 2, ■
The operator of the terminal 2 operates the console 5 and enters the pace address (address unique to the terminal 2) A5 and
Input a new logical address L and physical address P.

(2) The control unit 6 updates the t column of the address table 8. In other words, the logical machine number is LglC% and the physical machine number P! PIl updates.

(2) Next, the control unit 6 sends the table information 19 of the updated address table 8 to the external terminals 1 and 3 using the broadcast communication procedure.

■ In the terminal 1 (or 3), the control unit 10 (or 1
1) updates the contents of the address table 7 (or 9) with the received table information 19.

Therefore, t! of address table 7 (also Fi9)! The contents of the column are updated as follows: →L, and P, →P.

(2) Terminals 1 and 30 The control units 10 and 11 transmit termination information E and E to the terminal 2, which informs that the address tables 7 and 90 have been updated.

■ The control i1 that received the end information E and E outputs the end information E1 and E to the Kotzl 5 to notify the operator of the completion of the address change.

It goes without saying that the address change reporting process described above can be performed in the same way on terminals 1 and 3.

Next, the embodiment shown in FIG. 3 will be explained. In FIG. 3, the terminal 4 is on the master stage.
n), and the other terminals 1 to 3 are slave stations. Therefore, in this case, only the terminal device 4 performs the address change registration process.

For example, when an address change occurs for terminal 2, the operator at terminal 4 sends the change information from the console 13, that is, the new logical machine number L! of terminal 2! and the physical machine number P, as well as the base address A.

etc.

■ Based on this input data, the control unit 14 updates the contents of the t column of the address table 12 (that is, L!→L,...
P, → ps).

(2) The control unit 14 outputs end information E4 from the console 13, which indicates the end of table updating.

(2) The operator then inputs the transmission command 15 from the console 13.

■ The control unit 14 sends the updated table information 19 of the address table 12 to the terminals 1 to 3 by broadcast communication means.
Send to.

(2) In the terminals 1 to 3, the control units 6, 1o and 11 update the address tables 7 to 9 based on the received table information 19. Thereafter, the end information E1 to E is sent to the terminal 4.

(2) In the terminal device 4, the control unit 14 outputs the received termination information E, -E1 to the console 13.

With the above steps, the address change process regarding the terminal device 2 is completed. In both of the two embodiments (FIGS. 2 and 3), both the logical machine number and the physical machine number P are updated when the address is changed, but either one may be updated.

〔Effect of the invention〕

The present invention has the advantage of facilitating network construction and modification processing, as well as enabling the selection of address management suitable for the network.

[Brief explanation of drawings]

FIG. 1 is a block diagram of the principle of the present invention, FIGS. 2 and 3 illustrate an embodiment of the present invention, and FIG. 4 is a block diagram illustrating a conventional example. In the figure, 1, 2.3 are terminals, 4 is a mask terminal, 5, 13 are consoles, 6, 10, 11, 14 are control units, 7° 8, 9
．． 12 is the address table, 15 is the transmission command, 16 is the line, 17 is the address information, 18 is the update information, 19 is the table information %A6 is the pace address, E, , E, , E
, indicates termination information, LI=Lt, Li=Ll indicates logical machine number, and P+-Pt, Pg, Ps Fi indicates physical machine number. -m--＼ Agent Patent Attorney Sada Igata -~ Conventional example: 1 tax period TRO PRO 72 times issued 42

Claims (2)

[Claims] (1) In a communication system having a group of terminals having an address table 7 storing address information 17 related to all terminals connected to a line 16, and equipped with a means for broadcast communication between the terminals, input means for updating the address table 7 based on the received update information 18 and means for updating the address table 7 based on the received address table information 19 are provided in the terminals 1 and 2, and at least one of the terminals When a change or addition occurs to the address information in the terminal device 2, the control unit 6 in the terminal device 2 updates the address table 17 based on the input update information 18, and then updates the updated table information 19. , an address management system characterized in that broadcast transmission is performed to each terminal other than the terminal 2. (2) A terminal device 2 having means for updating the address table 7 based on the input update information 18 and an address table 7 based on the received address table information 19.
2. The address management system according to claim 1, further comprising a terminal other than the terminal 2 having means for updating the address management system.