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JPS5663612A - Controller with process fault diagnostic function - Google Patents

Controller with process fault diagnostic function

Info

Publication number
JPS5663612A
JPS5663612A JP13922379A JP13922379A JPS5663612A JP S5663612 A JPS5663612 A JP S5663612A JP 13922379 A JP13922379 A JP 13922379A JP 13922379 A JP13922379 A JP 13922379A JP S5663612 A JPS5663612 A JP S5663612A
Authority
JP
Japan
Prior art keywords
signal
trouble
stored
output
input
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
JP13922379A
Other languages
Japanese (ja)
Inventor
Goro Iketani
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP13922379A priority Critical patent/JPS5663612A/en
Publication of JPS5663612A publication Critical patent/JPS5663612A/en
Pending legal-status Critical Current

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  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE: To make it possible to detect a defective apparatus at an early state, improve the maintenance property and elevate the working efficiency of the system, by analyzing the stored variation data in a fixed period of time, when a trouble has occurred.
CONSTITUTION: In a normal state, the controller executes the control of a general process, and at the same time the momentary status of necessary input and output signals is stored by the signal selective circuit 7 which has been decided in advance. When trouble has occurred in the outside, a TRG signal is provided to the terminal T1, or the trigger condition is satisfied by a signal D' which has been designated by the signal selective circuit 7, and when a LOCK signal is output, it is halted to store a new data, and the previous data is fixed and stored. Since the variations of input and output signals extending from generation of cause of trouble to appearance of the result are all stored, trouble of the process can be diagnosed. Moreover, since the operation career of the input signal, the output signal and the internal output signal is left, it is also possible to detect a malfunction and failure of the input and output circuits themselves of the control.
COPYRIGHT: (C)1981,JPO&Japio
JP13922379A 1979-10-30 1979-10-30 Controller with process fault diagnostic function Pending JPS5663612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13922379A JPS5663612A (en) 1979-10-30 1979-10-30 Controller with process fault diagnostic function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13922379A JPS5663612A (en) 1979-10-30 1979-10-30 Controller with process fault diagnostic function

Publications (1)

Publication Number Publication Date
JPS5663612A true JPS5663612A (en) 1981-05-30

Family

ID=15240363

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13922379A Pending JPS5663612A (en) 1979-10-30 1979-10-30 Controller with process fault diagnostic function

Country Status (1)

Country Link
JP (1) JPS5663612A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157718A (en) * 1983-02-28 1984-09-07 Fuji Electric Co Ltd Programmable controller operating status monitoring method
JPS6069707A (en) * 1983-09-27 1985-04-20 Fanuc Ltd Numerical controller
JPS60159911A (en) * 1984-01-30 1985-08-21 Yokogawa Hokushin Electric Corp Hierarchical sequence control device
JPS6175406A (en) * 1984-09-20 1986-04-17 Toshiba Corp Sequence controller
JPS6232510A (en) * 1985-08-05 1987-02-12 Nissan Motor Co Ltd Abnormality diagnostic device for sequencer
JPS638804A (en) * 1986-06-27 1988-01-14 Koyo Denshi Kogyo Kk Programmable controller

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157718A (en) * 1983-02-28 1984-09-07 Fuji Electric Co Ltd Programmable controller operating status monitoring method
JPH0444767B2 (en) * 1983-02-28 1992-07-22 Fuji Denki Kk
JPS6069707A (en) * 1983-09-27 1985-04-20 Fanuc Ltd Numerical controller
JPS60159911A (en) * 1984-01-30 1985-08-21 Yokogawa Hokushin Electric Corp Hierarchical sequence control device
JPS6175406A (en) * 1984-09-20 1986-04-17 Toshiba Corp Sequence controller
JPS6232510A (en) * 1985-08-05 1987-02-12 Nissan Motor Co Ltd Abnormality diagnostic device for sequencer
JPS638804A (en) * 1986-06-27 1988-01-14 Koyo Denshi Kogyo Kk Programmable controller

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