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JPS6481427A - Program loading system - Google Patents

Program loading system

Info

Publication number
JPS6481427A
JPS6481427A JP23711987A JP23711987A JPS6481427A JP S6481427 A JPS6481427 A JP S6481427A JP 23711987 A JP23711987 A JP 23711987A JP 23711987 A JP23711987 A JP 23711987A JP S6481427 A JPS6481427 A JP S6481427A
Authority
JP
Japan
Prior art keywords
terminal
loading
program
terminals
command
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP23711987A
Other languages
Japanese (ja)
Inventor
Koichi Kimura
Osamu Kunisaki
Riichi Yasue
Tetsuo Oura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP23711987A priority Critical patent/JPS6481427A/en
Publication of JPS6481427A publication Critical patent/JPS6481427A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To eliminate the need for media such as floppy disks in terminal units by loading program to all terminals by one communication controller. CONSTITUTION:When a system requiring program loading to all the terminals 30-33 as shown in a figure (a) is started up, a command A indicating the loading is sent to all the terminals 30-33 at a time at the time of polling. All the terminal stations 30-33 which receive the command become ready to receive the program unconditionally and the communication controller 2 sends out the program. When any terminal only is started up after the completion of the system startup as shown in a figure (b), on the other hand, the communication controller 2 monitors the startup states of all the terminal stations by utilizing polling operation and if, for example, the terminal 33 sends a loading request ACK as a response to polling in the middle, loading to only the individual terminal 33 is indicated B and carried out. At this time, other terminal stations 30-32 ignore the command B, so the current processing is not interrupted.
JP23711987A 1987-09-24 1987-09-24 Program loading system Pending JPS6481427A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23711987A JPS6481427A (en) 1987-09-24 1987-09-24 Program loading system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23711987A JPS6481427A (en) 1987-09-24 1987-09-24 Program loading system

Publications (1)

Publication Number Publication Date
JPS6481427A true JPS6481427A (en) 1989-03-27

Family

ID=17010692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23711987A Pending JPS6481427A (en) 1987-09-24 1987-09-24 Program loading system

Country Status (1)

Country Link
JP (1) JPS6481427A (en)

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