JPS53131378A - Trouble detecting apparatus in sequence controller - Google Patents

Trouble detecting apparatus in sequence controller

Info

Publication number
JPS53131378A
JPS53131378A JP4564877A JP4564877A JPS53131378A JP S53131378 A JPS53131378 A JP S53131378A JP 4564877 A JP4564877 A JP 4564877A JP 4564877 A JP4564877 A JP 4564877A JP S53131378 A JPS53131378 A JP S53131378A
Authority
JP
Japan
Prior art keywords
sequence controller
detecting apparatus
trouble detecting
input
trouble
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
JP4564877A
Other languages
Japanese (ja)
Inventor
Ikuro Masuda
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 JP4564877A priority Critical patent/JPS53131378A/en
Publication of JPS53131378A publication Critical patent/JPS53131378A/en
Pending legal-status Critical Current

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  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE:To enable trouble diagnosis of an input/output apparatus and improve the reliability of a sequence controller by watching the existence of abnormalities of the input/output unit by an auxiliary arithmetic unit separately arranged from the processor of the sequence controller itself.
JP4564877A 1977-04-22 1977-04-22 Trouble detecting apparatus in sequence controller Pending JPS53131378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4564877A JPS53131378A (en) 1977-04-22 1977-04-22 Trouble detecting apparatus in sequence controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4564877A JPS53131378A (en) 1977-04-22 1977-04-22 Trouble detecting apparatus in sequence controller

Publications (1)

Publication Number Publication Date
JPS53131378A true JPS53131378A (en) 1978-11-16

Family

ID=12725183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4564877A Pending JPS53131378A (en) 1977-04-22 1977-04-22 Trouble detecting apparatus in sequence controller

Country Status (1)

Country Link
JP (1) JPS53131378A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717019A (en) * 1980-07-07 1982-01-28 Fanuc Ltd Numerical controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717019A (en) * 1980-07-07 1982-01-28 Fanuc Ltd Numerical controller

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