JPS57103452A - Information transmission system - Google Patents

Information transmission system

Info

Publication number
JPS57103452A
JPS57103452A JP55178980A JP17898080A JPS57103452A JP S57103452 A JPS57103452 A JP S57103452A JP 55178980 A JP55178980 A JP 55178980A JP 17898080 A JP17898080 A JP 17898080A JP S57103452 A JPS57103452 A JP S57103452A
Authority
JP
Japan
Prior art keywords
slave station
information
call control
indication
response time
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
JP55178980A
Other languages
Japanese (ja)
Inventor
Shinichi Yamaguchi
Satoru Otake
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 Engineering Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Engineering Co Ltd
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 Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Engineering Co Ltd
Priority to JP55178980A priority Critical patent/JPS57103452A/en
Publication of JPS57103452A publication Critical patent/JPS57103452A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

PURPOSE:To improve the reliability, by transmitting next slave station call control information only when a prescribed number of information words is received within a set response time in the system for transmission of slave station call control information and its indication and instrumentation information. CONSTITUTION:A response time, which is required for receiving indication and instrumentation information from a slave station 1 in a master station 5 for control information calling the slave station 1 from the master station 5, and a number of information words to be received are set as data in a memory part 13 in the unit of each slave station 1, and it is discriminated by a receiving data discriminating program storage device 11 whether the set number of words of indication and instrumentation information is received correctly from each slave station 1 continuously within the set response time or not. If the discrimination result is normal, information is set to a receiving data storage buffer 10, and the next slave station call control is executed. If it is abnormal, only the receiving signal is read and abandoned, and the call control for the next slave station 1 is executed.
JP55178980A 1980-12-19 1980-12-19 Information transmission system Pending JPS57103452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55178980A JPS57103452A (en) 1980-12-19 1980-12-19 Information transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55178980A JPS57103452A (en) 1980-12-19 1980-12-19 Information transmission system

Publications (1)

Publication Number Publication Date
JPS57103452A true JPS57103452A (en) 1982-06-28

Family

ID=16058005

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55178980A Pending JPS57103452A (en) 1980-12-19 1980-12-19 Information transmission system

Country Status (1)

Country Link
JP (1) JPS57103452A (en)

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