JPH0797357B2 - Communication path number setting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] The present invention relates to a communication path number setting method for a workstation, and aims to be able to arbitrarily set an array of communication path numbers in a path table specified by a logical address. A setting path table composed of reference value data indicating the reference value of the communication path number and increment value data arranged in the order of logical addresses, and the reference value data and each increment value data when the initial program is loaded. And a setting unit for storing the communication path number obtained by adding the above to the corresponding address of the path table, and setting the communication path number corresponding to the logical address by the reference value data and the increment value data.

[Industrial application field]

The present invention relates to an improvement in a communication path number setting method used for establishing a session between devices.

The communication path number (NO) is used when establishing a session (setting a connection state) between the processing units of the data processing device.

For example, in a multi-station system in which the workstation WS processes data under the control of the station controller SC, the SC side supports its own business program (hereinafter referred to as a task and distinguished from that of WS) and the communication path NO. The correspondence table is provided with a path table in which the communication path NO is stored based on the logical address on the WS side. For example, when establishing a session from the WS side, each business program (hereinafter referred to as application module; APL
The path table is searched based on the logical address specified by the module), and the communication path detected thereafter is searched.
Based on the NO, it is configured to communicate with the corresponding SC business program.

In recent years, various multi-stations with different functions are being developed, but if SC is used and the APL module whose logical address is already set is used and the correspondence table is fixed, it is necessary to associate the communication path NO. Often involves major changes.

This causes management problems as well as change work, and a flexible communication path NO setting method is required.

[Conventional technology]

FIG. 3 is an explanatory diagram of a conventional communication path NO setting method. In the figure, SC1 is a station controller having a plurality of tasks TASK1 to n for controlling the workstations WS1 and WS2, and performing predetermined processing while talking with WS1 and WS2 by TASK1 to n.

WS1 and WS2 are workstations such as a display terminal and perform predetermined data processing by conversation using the resources of SC1.

In the multi-station system with the above configuration, WS-
Communication between SCs is performed by establishing a session between corresponding business programs by exchanging communication path NO.

Therefore, SC1 is provided with a correspondence table 1 that associates TASK NO with communication path NO, and the communication path notified from WS
Connect to the corresponding TASK by NO, WS is provided with the path table 10 specified by the logical address LA, and the logical address L specified by the APL module 3
Based on A, the communication management unit 2 searches the path table 10
The detected communication path NO is notified to SC1 and the APL module 3
Establish a session between TASKs.

The path table 10 provided for each WS is the logical address LA
Communication path NOs are arranged in order. For example, of the 2-digit communication path NOs, the first digit is the WS number and the second digit is TASK NO.
It is composed of data corresponding to.

Therefore, the contents of the path table 10 are different for each WS, which may cause a setting error. To prevent this, a setting path table 11 is provided.

This setting path table 11 is an array of the start path NO60 capable of identifying the WS number in the order of the logical address LA and the increment value data 61. When the initial program is loaded (IPL), the start path NO together with the start path NO + increment value data is set. Is calculated and stored in the path table 10.

As described above, when the increment value data 61 is used for the setting path NO, the increment value data 61 is common to each WS, and there is an advantage that setting mistakes can be prevented.

[Problems to be solved by the invention]

As described above, the communication path NO at the workstation
The setting of is set by the head path NO and the increment value data, but the set communication path NO is always set larger than the head path NO.

For this reason, for example, using the SC for which the correspondence table has been set,
In addition, in order to use the APL module that has already been developed, it is necessary to change the logical address designated by the APL module, for example, in order to associate the communication path NO.

FIG. 4 is an explanatory diagram of the problem, and assumes the case where the allocation of TASK NO1, 2 is the opposite of SC1 in the correspondence table of SC2 in the development area.

If the APL module specifies logical NOLA = 2 (TASK NO = 2) in the system shown in FIG. 3, the communication path NO = 40 in the case of FIG. 4 and TASK of SC2 is reached. NO = 1
Will be connected with.

In order to eliminate this misconnection, the designation of the APL module may be set to LA = 1, but a management problem occurs in relation to other systems.

In view of the above problems, it is an object of the present invention to provide a communication path NO setting method capable of flexibly setting the communication path NO in a workstation.

[Means for solving problems]

For the above purpose, the communication path number setting method of the present invention is
As shown in the multi-workstation system block diagram of FIG. 1 embodiment and the path table explanatory diagram of FIG. 2 embodiment, reference value data (50) representing the reference value of the communication path number (LU) together with the workstation number is provided. , Logical address (L
A) A setting path table (6) consisting of increment value data (51) arranged in order, and the reference value data (50) when the initial program is loaded.
And a setting unit (5) for storing a communication path number (LU) obtained by adding the increment value data (51) to the corresponding address of the path table (4).

[Action]

The communication path number LU is set by an increment value from the reference value that can identify the workstation WS.

The setting path table 6 is one in which the increment value data 51 is arranged in the order of the logical address LA along with the reference value data 50.
At the time of L, the reference value data 50 and each increment value data 51 are set by the setting unit 5.
Path table 4 as the communication path number LU
Are sequentially stored in and are referenced by the logical address LA.

As described above, it is possible to arbitrarily set the communication path number LU which is conventionally set to a value larger than the leading path number NO, and it is possible to flexibly correspond to the system.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a multi-workstation system of the embodiment, and FIG. 2 is an explanatory diagram of a setting path table of the embodiment.

In Fig. 1, SC is the station controller, and the correspondence table
Equipped with 20.

WS is a workstation, 2 is a logical address LA specified by the APL module 3.
Based on the path table 4, detects the corresponding communication path number LU and requests the SC to establish the session, 3 is a plurality of APL modules, 4 is a path table, and logical address LA Which stores the communication path number LU in a predetermined memory area corresponding to the reference value data 50, which is activated at the time of IPL of the workstation WS by referring to the setting path table 6
And the increment value data 51 and the path table 4
The communication path number LU is set to the reference numeral 6, and 6 is a setting path table, as shown in FIG.
The reference value data 50 and the increment value data 51 corresponding to the communication path number LU and arranged in the order of the logical address LA are stored in the battery C by the input means (not shown).
Those that are registered in the memory composed of MOS etc.

In the multi-workstation system having the above configuration, the setting operation of the communication path number LU is performed as follows.

(1) The reference value data 50 and the increment value data corresponding to the logical address LA are set in the setting path table 6 in the setup for setting the operating environment conditions of each part of the workstation WS.
Enter 51 and.

As a result, the setting values as shown in FIG. 2 are stored in the setting path table 6, and thereafter the battery is backed up and stored.

(2) The setting unit 5 is started by the IPL operation performed when the workstation WS is powered on.

The setting unit 5 reads the setting path table 6, sequentially adds the reference value data 50 and each increment data 51, and stores them in ascending address order from the beginning of the path table 4.

As described above, the communication path numbers LU are arranged in the path table 4 in the order of the logical addresses LA.

(3) When the logical address LA is designated by the APL module 3 and opening with the SC is requested, the communication management unit 2 refers to the path table 4 based on the logical address LA and detects the corresponding communication path number LU. Contact the SC to request session establishment.

The SC refers to the correspondence table 20 and reads the corresponding TASK NO to establish the session.

FIG. 2 shows an example of a setting table for the arrangement shown in the correspondence table 20. The logical address LA1 is TASK NO = 1.
Is specified, the reference value is set to 10, and the increment value is set to 30. When the logical address LA = 2 specifies TASK NO = 2, the increment value is set to 20.

In the above example, in the conventional method of the first path NO + incremental value, the logical address LA = 2 cannot specify the communication path number LU of 40 or less, and the array of the correspondence table 1 is changed or the logical address LA is changed. Must be changed.

As described above, the setting path table 6 represents the workstation number and the reference value data 50 representing the communication path number LU reference value and the increment value data 51 are set in the path table 4. As described above, it is possible to set the same value to each workstation to prevent a setting error, and it is possible to arrange the communication path numbers LU in logical address order corresponding to the correspondence table 20 of the SC.

As a result, the communication path number LU can be flexibly set without changing the SC and APL modules 3.

〔The invention's effect〕

The present invention uses the reference path data and the increment value data for the communication path NO.
Since it provides a method of setting (1), it is possible to flexibly correspond to the communication path NO that has been set.

(2) Since the reference number data includes the workstation number, the increment value data corresponding to the communication path NO can be unified for each workstation.

The effect of etc. is great.

[Brief description of drawings]

FIG. 1 is a block diagram of a multi-workstation system of the embodiment, FIG. 2 is an explanatory view of a setting path table of the embodiment, FIG. 3 is an explanatory view of a conventional communication path NO setting method, and FIG. 4 is a description of problems. Fig. In the figure, 1 is a correspondence table, 2 is a communication management unit, 3 is an APL module, 4 is a path table, 5 is a setting unit, 6 is a setting path table, 50 is reference value data, 51 is increment value data, and SC is Station controller, WS is a workstation.

Claims (1)

[Claims] 1. A path table (4) for storing a plurality of communication path numbers (LU) corresponding to respective processing units (TASK) of a host device in association with a logical address (LA), the specified logical A method of setting a communication path number in a workstation that establishes a session with each processing unit (TASK) of a higher-level device using the communication path number (LU) based on an address (LA). Communication path number (LU)
Setting path table (6) consisting of reference value data (50) that represents the reference value of, and increment value data (51) arranged in the order of logical addresses (LA), and the reference value when the initial program is loaded. Data (50)
And a setting unit (5) for storing the communication path number (LU) obtained by adding the above-mentioned increment value data (51) to the corresponding address of the path table (4) respectively, and corresponding to the logical address (LA) The communication path number (LU) for the reference value data (50) and increment value data (51)
A communication path number setting method characterized by setting with and.