JPH0256695B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Technical Field of the Invention The present invention relates to an online system, particularly a system in which one host data processing device and a plurality of terminal stations are linked together as an online system. The present invention relates to an online system that allows terminal stations that are not defined at the time of system editing (system generation) to be freely added.

(B) Technical background and problems Conventionally, in online systems such as those described above, the maximum number of terminal stations that can be connected when editing the system is determined, and a station information table is created corresponding to each terminal station. defined in the form The dial number of the terminal station is given in the information table of the station, and the dial number in the station information table is indexed based on the SEND macro from the application program and used for communication. It will be done.

For this reason, it is not easy to add a new terminal station to a system once defined.

(C) Object and Structure of the Invention The present invention aims to solve the above-mentioned problems, and the online system of the present invention is provided with a station information table that can be created corresponding to a plurality of terminal stations that can communicate with each other. When communicating to the terminal station, the application program prepares a transmit/receive data buffer, and the transmission control unit requested by the macro instruction from the application program writes data in the corresponding station information table. In an online system that extracts the dial number of a terminal station and requests communication, an application program prepares in advance the dial number of the terminal station with which communication is desired, and issues a predetermined macro command to the transmission control unit. Then, the transmission control unit is controlled to write the dial number of the destination terminal station with which communication is desired in the above-prepared location into one of the currently vacant station information tables, and from then on, the application program The present invention is characterized in that it is configured to communicate with the destination terminal station with which communication is desired based on the contents of the station information table. This will be explained below with reference to the drawings.

(D) Embodiments of the Invention FIG. 1 shows an embodiment in which the contents of a station information table are rewritten according to the present invention, and FIG. 2 shows an embodiment in which communication is performed based on the rewritten results.

In the figure, 1 is an application program, 2 is a transmission control section, 3 is a firmware section, and 4 is an application program.
is the network control device, 5 is the line, 6 is the SEND macro, 7
8 represents a SEND macro parameter block, 8 represents a station information table, and 9 represents a transmission buffer.

As shown in one embodiment in FIG. 1, when the application program 1 desires to communicate with a terminal station that is in an undefined state, the application program 1 communicates with a certain terminal station, for example, iD=No. for 1 station
Issue a SEND macro with Detail FF. At this time, the application program 1 writes the address of the sending buffer 9 in the buffer setting area on the block 7 corresponding to the macro, and also writes the address of the terminal station in the undefined state on the sending buffer 9. Be sure to write down the dial number. In this state the above
The transmission control unit 2 that received the SEND macro sends the contents of the transmission buffer 9, that is, the dial number, to iD=
A dial number is set on the station information table 8 corresponding to the No. 1 station. That is, a dial number is set in the dial number setting area.

In this state, the application program 1 issues a SEND macro with Detail00 attached to the station with iD=No. 1 to communicate with the station, as shown in FIG. That is, at this time, transmission data is prepared in the transmission buffer 9 specified by the contents of the buffer setting area on the block 7 corresponding to the macro. On the other hand, the transmission control unit 2 that has received the SEND macro dials the firmware unit 3 based on the dial number on the table 8.
Issue a command. Based on this, the firmware section 3 instructs the network control device 4 to write, and the network control device 4 works to send out dial pulses.

According to the embodiment explained with reference to FIGS. 1 and 2, the application program 1 can write any dial number on the station information table 8, and can communicate with any terminal station. It becomes possible. However, when the above embodiment is adopted, it becomes difficult for the transmission control unit 2 to perform an ID check such as matching the station ID with the dial number of the terminal station. For this purpose, from the application program 1, for example, the station iD at the time of reception
A window is provided so that the iD can be checked, and the above iD check is left to the application program.

It should be noted that the station information table 8 shown in the figure may be considered to be defined at the time of the above-mentioned system editing.

(E) Effects of the Invention As explained above, according to the present invention, it is possible to communicate with undefined terminal stations based on a relatively simple configuration, and for example, when adding a terminal station, Extremely effective.

[Brief explanation of drawings]

FIG. 1 shows an embodiment in which the contents of the station and information table are rewritten according to the present invention, and FIG. 2 shows an embodiment in which communication is performed based on the rewritten results. In the figure, 1 is the application program, 2
3 represents a transmission control unit, 3 represents firmware, 4 represents a network control device, 6 represents a SEND macro, 7 represents a parameter block for the SEND macro, 8 represents a station information table, and 9 represents a transmission buffer.

Claims (1)

[Claims] 1. A station information table is provided corresponding to each of a plurality of terminal stations that can communicate with each other, and when communicating with the terminal station, the application program prepares a sending/receiving data buffer, and the application program In an online system in which the transmission control unit requested by the macro instruction extracts the dial number in the corresponding station information table and requests communication, the application program extracts the dial number in the corresponding station information table and requests communication. Prepare the number in advance, issue a predetermined macro command to the transmission control unit, and request the transmission control unit to communicate with the prepared station in one of the currently vacant station information tables. The system is characterized in that the application program is controlled to write the dial number of the destination terminal station to which communication is desired, and thereafter the application program communicates with the destination terminal station with which communication is desired based on the contents of the station information table. Online system.