JPS52121185A - Sequential control equipment capable of abnormality indication - Google Patents

Sequential control equipment capable of abnormality indication

Info

Publication number
JPS52121185A
JPS52121185A JP3597976A JP3597976A JPS52121185A JP S52121185 A JPS52121185 A JP S52121185A JP 3597976 A JP3597976 A JP 3597976A JP 3597976 A JP3597976 A JP 3597976A JP S52121185 A JPS52121185 A JP S52121185A
Authority
JP
Japan
Prior art keywords
control equipment
sequential control
equipment capable
abnormality indication
abnormality
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
JP3597976A
Other languages
Japanese (ja)
Inventor
Hirokazu Yanagihara
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 JP3597976A priority Critical patent/JPS52121185A/en
Publication of JPS52121185A publication Critical patent/JPS52121185A/en
Pending legal-status Critical Current

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  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE:To utilize for indication of abnormality the contacts of timers whose operation periods are set longer than each practical period for each system in the action instructions circuit.
JP3597976A 1976-04-02 1976-04-02 Sequential control equipment capable of abnormality indication Pending JPS52121185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3597976A JPS52121185A (en) 1976-04-02 1976-04-02 Sequential control equipment capable of abnormality indication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3597976A JPS52121185A (en) 1976-04-02 1976-04-02 Sequential control equipment capable of abnormality indication

Publications (1)

Publication Number Publication Date
JPS52121185A true JPS52121185A (en) 1977-10-12

Family

ID=12457000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3597976A Pending JPS52121185A (en) 1976-04-02 1976-04-02 Sequential control equipment capable of abnormality indication

Country Status (1)

Country Link
JP (1) JPS52121185A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013001250A (en) * 2011-06-16 2013-01-07 Nippon Signal Co Ltd:The Crossing gate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49109783A (en) * 1973-02-21 1974-10-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49109783A (en) * 1973-02-21 1974-10-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013001250A (en) * 2011-06-16 2013-01-07 Nippon Signal Co Ltd:The Crossing gate

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