JPS5523639A - Remote monitor and control unit - Google Patents

Remote monitor and control unit

Info

Publication number
JPS5523639A
JPS5523639A JP9614578A JP9614578A JPS5523639A JP S5523639 A JPS5523639 A JP S5523639A JP 9614578 A JP9614578 A JP 9614578A JP 9614578 A JP9614578 A JP 9614578A JP S5523639 A JPS5523639 A JP S5523639A
Authority
JP
Japan
Prior art keywords
selection
sets
signal
control
multiplex
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
JP9614578A
Other languages
Japanese (ja)
Inventor
Shohei Suzuki
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 JP9614578A priority Critical patent/JPS5523639A/en
Publication of JPS5523639A publication Critical patent/JPS5523639A/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 prevent the malfunction, by enabling the operation for a plurality of sets of the remote monitor and control unit as one set, through the provision of the multiplex selection and detection circuit between sets with the master and slave stations. CONSTITUTION:The control desk 13 is connected with the master remote and monitor control units TC 4,5,6 to perform the parallel units 4,5,6 in three sets as one set. The unit selection switch 14 from the control desk 13 performs multiplex selection and detection check every set with the multiplex selection detection circuits 16 to 18, and if the selection is good, the selection excellence signal 23 is outputted to the multiplex selection and detection circuit 22 between sets. Further, the circuit 22 checks the signal 23 from the TC sets (A),(B), and (C) that they are only one. If it is good, the single selection excellence signal 24 representing that the selection is one set is distributed to only one of the control transmission circuits 19 to 21 corresponding to the excellent selection signal, and the control transmission circuit receives the unit selection data with this signal 24 and transmits it to the slave station K.
JP9614578A 1978-08-09 1978-08-09 Remote monitor and control unit Pending JPS5523639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9614578A JPS5523639A (en) 1978-08-09 1978-08-09 Remote monitor and control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9614578A JPS5523639A (en) 1978-08-09 1978-08-09 Remote monitor and control unit

Publications (1)

Publication Number Publication Date
JPS5523639A true JPS5523639A (en) 1980-02-20

Family

ID=14157206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9614578A Pending JPS5523639A (en) 1978-08-09 1978-08-09 Remote monitor and control unit

Country Status (1)

Country Link
JP (1) JPS5523639A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010011915A (en) * 2008-07-01 2010-01-21 Brother Ind Ltd Knee lever for sewing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010011915A (en) * 2008-07-01 2010-01-21 Brother Ind Ltd Knee lever for sewing machine

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