JPS54101216A - Multiplex transmission unit - Google Patents

Multiplex transmission unit

Info

Publication number
JPS54101216A
JPS54101216A JP721778A JP721778A JPS54101216A JP S54101216 A JPS54101216 A JP S54101216A JP 721778 A JP721778 A JP 721778A JP 721778 A JP721778 A JP 721778A JP S54101216 A JPS54101216 A JP S54101216A
Authority
JP
Japan
Prior art keywords
station
data
slave
master station
given
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.)
Granted
Application number
JP721778A
Other languages
Japanese (ja)
Other versions
JPS6057743B2 (en
Inventor
Yoshihiro Uekane
Takakazu Sakurai
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 JP53007217A priority Critical patent/JPS6057743B2/en
Publication of JPS54101216A publication Critical patent/JPS54101216A/en
Publication of JPS6057743B2 publication Critical patent/JPS6057743B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/24—Time-division multiplex systems in which the allocation is indicated by an address the different channels being transmitted sequentially
    • H04J3/245—Time-division multiplex systems in which the allocation is indicated by an address the different channels being transmitted sequentially in which the allocation protocols between more than two stations share the same transmission medium

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To enable multiplex transmission with good efficiency economically, even if there are in mixture of slave stations having much and less data amount, by freely extending or reducing the number of channels used depending on the amount of singal handled with the process control system slave station. CONSTITUTION:When data are transmitted from the master station 20 to the slave station 30, each slave station is given with the function 31 setting the address receptionable for its station in advance, and the master station 20 delivers 23 the address set to the slave station to the delivery line with each transmission data. On the other hand, when the master station 20 receives data from the slave station 30, the function transmitting busy signal to the slave stations other than the station permitting data delivery to the master station is given, and also the function to deliver the data to the master station only when this busy signal is not received is given, allowing to give the permission of transmission from the master station depending on the data amount handled with the slave station.
JP53007217A 1978-01-27 1978-01-27 multiplex transmission equipment Expired JPS6057743B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53007217A JPS6057743B2 (en) 1978-01-27 1978-01-27 multiplex transmission equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53007217A JPS6057743B2 (en) 1978-01-27 1978-01-27 multiplex transmission equipment

Publications (2)

Publication Number Publication Date
JPS54101216A true JPS54101216A (en) 1979-08-09
JPS6057743B2 JPS6057743B2 (en) 1985-12-17

Family

ID=11659820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53007217A Expired JPS6057743B2 (en) 1978-01-27 1978-01-27 multiplex transmission equipment

Country Status (1)

Country Link
JP (1) JPS6057743B2 (en)

Also Published As

Publication number Publication date
JPS6057743B2 (en) 1985-12-17

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