JPS5720087A - Decentralized installation type signal transmitter - Google Patents

Decentralized installation type signal transmitter

Info

Publication number
JPS5720087A
JPS5720087A JP9403880A JP9403880A JPS5720087A JP S5720087 A JPS5720087 A JP S5720087A JP 9403880 A JP9403880 A JP 9403880A JP 9403880 A JP9403880 A JP 9403880A JP S5720087 A JPS5720087 A JP S5720087A
Authority
JP
Japan
Prior art keywords
units
master
subordinate
cable
signal transmitter
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
JP9403880A
Other languages
Japanese (ja)
Inventor
Norihisa Suzuki
Shunji Mori
Naotomo Tsuchiya
Toshifumi Yamamoto
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 JP9403880A priority Critical patent/JPS5720087A/en
Publication of JPS5720087A publication Critical patent/JPS5720087A/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)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To lessen the used amount of a cable while making a signal system clear by using only one master station for many signal transmitters which transmit and receive signals, and by connecting several transmitters to each subordinate station via one cable. CONSTITUTION:For one master signal transmission unit 1, several signal transmitter units 2 are arranged and connected together via one cable; and the subordinate units 2 are connected mutually. Consequently, field boards as subordinate units 2 are decentralized for every function of a process, and controlled by one master unit 1. Then, a plurality of the units are used to connect the subordinate units 2 to the master units 1 via cables 5, and master units 1 are connected to a central monitoring controller 5 together, thereby further increasing the range of a control system.
JP9403880A 1980-07-11 1980-07-11 Decentralized installation type signal transmitter Pending JPS5720087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9403880A JPS5720087A (en) 1980-07-11 1980-07-11 Decentralized installation type signal transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9403880A JPS5720087A (en) 1980-07-11 1980-07-11 Decentralized installation type signal transmitter

Publications (1)

Publication Number Publication Date
JPS5720087A true JPS5720087A (en) 1982-02-02

Family

ID=14099389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9403880A Pending JPS5720087A (en) 1980-07-11 1980-07-11 Decentralized installation type signal transmitter

Country Status (1)

Country Link
JP (1) JPS5720087A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141373A (en) * 1982-02-10 1983-08-22 Chiyuushiyou Kigyo Shinko Jigyodan Method of measuring rate of deposition of electroless plating solution
JPS58141372A (en) * 1982-02-10 1983-08-22 Chiyuushiyou Kigyo Shinko Jigyodan Method for measuring active state of electroless copper plating solution

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141373A (en) * 1982-02-10 1983-08-22 Chiyuushiyou Kigyo Shinko Jigyodan Method of measuring rate of deposition of electroless plating solution
JPS58141372A (en) * 1982-02-10 1983-08-22 Chiyuushiyou Kigyo Shinko Jigyodan Method for measuring active state of electroless copper plating solution

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