JPS566553A - Communication system - Google Patents

Communication system

Info

Publication number
JPS566553A
JPS566553A JP8244079A JP8244079A JPS566553A JP S566553 A JPS566553 A JP S566553A JP 8244079 A JP8244079 A JP 8244079A JP 8244079 A JP8244079 A JP 8244079A JP S566553 A JPS566553 A JP S566553A
Authority
JP
Japan
Prior art keywords
master unit
byte
slave
unit
information
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
JP8244079A
Other languages
Japanese (ja)
Other versions
JPS6238900B2 (en
Inventor
Kazuyasu Nagatomi
Jun Miyazaki
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8244079A priority Critical patent/JPS566553A/en
Publication of JPS566553A publication Critical patent/JPS566553A/en
Publication of JPS6238900B2 publication Critical patent/JPS6238900B2/ja
Granted 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
    • H04Q9/14—Calling by using pulses

Landscapes

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

Abstract

PURPOSE:To ensure the effective use of the information, by discriminating whether the information which is transmitted after detecting the first sentence of the information given from the master unit at each slave unit and by the time supervisory is sent from the master unit or the slave unit in case the semidouble synchronous communication is carried out with n-units of slave units connected to the master unit. CONSTITUTION:The information is collected via n-units of slave units connected to the master unit. And the 1-byte information received at a certain slave unit from the master unit is supplied to serial-parallel converting part 3 via interface 2. Timer 4 is triggered by the end of reception and then turned to the L level. And when the coincidence is detected to the own address at coincidence circuit 5 at the H level and in the first byte, control circuit 8 works. And thus timer 4 is also triggered at the end of reception of the second byte, and the data transmission is started from the slave unit to the master unit after reception. Other slave units which have no address coincidence receive their transmission data. But they never receive the data as the transmission data from the master unit by controlling the set time since timer 4 is triggered by the transmission byte of the second byte sent from the master unit.
JP8244079A 1979-06-29 1979-06-29 Communication system Granted JPS566553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8244079A JPS566553A (en) 1979-06-29 1979-06-29 Communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8244079A JPS566553A (en) 1979-06-29 1979-06-29 Communication system

Publications (2)

Publication Number Publication Date
JPS566553A true JPS566553A (en) 1981-01-23
JPS6238900B2 JPS6238900B2 (en) 1987-08-20

Family

ID=13774595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8244079A Granted JPS566553A (en) 1979-06-29 1979-06-29 Communication system

Country Status (1)

Country Link
JP (1) JPS566553A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0273676U (en) * 1988-11-24 1990-06-05
US7648136B2 (en) 2004-09-28 2010-01-19 Toshiba Tec Kabushiki Kaisha Sheet post-process apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5260508A (en) * 1975-11-14 1977-05-19 Nippon System Kogyo Kk Frame synchronizing system
JPS53146083A (en) * 1977-05-25 1978-12-19 Bon Denki Kk Control system for watching great distance

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5260508A (en) * 1975-11-14 1977-05-19 Nippon System Kogyo Kk Frame synchronizing system
JPS53146083A (en) * 1977-05-25 1978-12-19 Bon Denki Kk Control system for watching great distance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0273676U (en) * 1988-11-24 1990-06-05
US7648136B2 (en) 2004-09-28 2010-01-19 Toshiba Tec Kabushiki Kaisha Sheet post-process apparatus
US7802788B2 (en) 2004-09-28 2010-09-28 Toshiba Tec Kabushiki Kaisha Sheet post-process apparatus

Also Published As

Publication number Publication date
JPS6238900B2 (en) 1987-08-20

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