JPS57133794A - Signal transmitting system - Google Patents

Signal transmitting system

Info

Publication number
JPS57133794A
JPS57133794A JP56019068A JP1906881A JPS57133794A JP S57133794 A JPS57133794 A JP S57133794A JP 56019068 A JP56019068 A JP 56019068A JP 1906881 A JP1906881 A JP 1906881A JP S57133794 A JPS57133794 A JP S57133794A
Authority
JP
Japan
Prior art keywords
transmitted
data
signal
selection
control
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
JP56019068A
Other languages
Japanese (ja)
Inventor
Masaru Nishigaki
Kenichi Morita
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
Hitachi Information and Control Systems Inc
Original Assignee
Hitachi Ltd
Hitachi Control Systems Inc
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, Hitachi Control Systems Inc filed Critical Hitachi Ltd
Priority to JP56019068A priority Critical patent/JPS57133794A/en
Publication of JPS57133794A publication Critical patent/JPS57133794A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To make lifting control easy, by reducing the data collecting period of data group relating to the lifting control in lifting control. CONSTITUTION:When a selection signal 20 is transmitted from a master station 1, a slave station 2 receives the selection signal 20, and a selection completion signal 21 and a data 22 relating to a control objective are transmitted, and thereafter, if the request of transmission is not transmitted from a master station, when the signal is once selected, selection completion signals 23, 25 and data 24, 26 are transmitted one after another. Next, if lifting control is made, a control instruction 27 is transmitted from the master station, and when the slave station receives the control instruction 27, a control reception input 28 and data 29 are transmitted. Thereafter, even if the request of transmission is not transmitted, a selection completion signal 30 and data 31 are transmitted from the slave station. Next, a selection release signal 32 is transmitted from the master station with the selection release operation, and if the response signal 33 is transmitted from the slave station, normal cyclic data collection and status change monitoring are reverted to a plurality of slave stations.
JP56019068A 1981-02-13 1981-02-13 Signal transmitting system Pending JPS57133794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56019068A JPS57133794A (en) 1981-02-13 1981-02-13 Signal transmitting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56019068A JPS57133794A (en) 1981-02-13 1981-02-13 Signal transmitting system

Publications (1)

Publication Number Publication Date
JPS57133794A true JPS57133794A (en) 1982-08-18

Family

ID=11989108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56019068A Pending JPS57133794A (en) 1981-02-13 1981-02-13 Signal transmitting system

Country Status (1)

Country Link
JP (1) JPS57133794A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60103753A (en) * 1983-11-10 1985-06-08 Hitachi Ltd Telemeter device
JPS60199256A (en) * 1984-03-23 1985-10-08 Matsushita Electric Works Ltd Repeater checker for multiplex transmission
JPS6123439A (en) * 1984-07-11 1986-01-31 Hitachi Ltd Data transmission system in decentralized type plant supervisory controller

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60103753A (en) * 1983-11-10 1985-06-08 Hitachi Ltd Telemeter device
JPH0518299B2 (en) * 1983-11-10 1993-03-11 Hitachi Ltd
JPS60199256A (en) * 1984-03-23 1985-10-08 Matsushita Electric Works Ltd Repeater checker for multiplex transmission
JPH0666802B2 (en) * 1984-03-23 1994-08-24 松下電工株式会社 Repeater Chietuka for multiplex transmission
JPS6123439A (en) * 1984-07-11 1986-01-31 Hitachi Ltd Data transmission system in decentralized type plant supervisory controller

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