JPS644812A - Sequence controller with abnormal part display function - Google Patents
Sequence controller with abnormal part display functionInfo
- Publication number
- JPS644812A JPS644812A JP62159618A JP15961887A JPS644812A JP S644812 A JPS644812 A JP S644812A JP 62159618 A JP62159618 A JP 62159618A JP 15961887 A JP15961887 A JP 15961887A JP S644812 A JPS644812 A JP S644812A
- Authority
- JP
- Japan
- Prior art keywords
- program
- variable
- execution
- abnormality
- step number
- 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
Links
Landscapes
- Testing And Monitoring For Control Systems (AREA)
- Debugging And Monitoring (AREA)
- Programmable Controllers (AREA)
Abstract
PURPOSE:To facilitate the analysis of the cause of an abnormality, and to improve the degree of definite decision of the cause, by displaying automatically a program retrieval at the time of causing abnormality, and a check of an input and an output, by the device. CONSTITUTION:When an abnormality condition is formed, a monitoring part 19 records a step number of a program which is executed, in a step No. register 21, and simultaneously, issues an instruction to an executing part 16 so as to stop an execution of the program. Subsequently, an analyzing part 22 receives the step number from the step No. register 21, fetches the contents of the execution program shown by the step number, from an execution program storage part 15 by a step unit and retrieves a variable used therein. Also, a value of the retrieved variable is read out of an input/output storage part 17. Subsequently, the fetched execution program is restored to a format of the time when it is inputted by a reverse converting part 23. In the end, said restored program variable and the variable value are displayed on a display part 12.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62159618A JPS644812A (en) | 1987-06-29 | 1987-06-29 | Sequence controller with abnormal part display function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62159618A JPS644812A (en) | 1987-06-29 | 1987-06-29 | Sequence controller with abnormal part display function |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS644812A true JPS644812A (en) | 1989-01-10 |
Family
ID=15697653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62159618A Pending JPS644812A (en) | 1987-06-29 | 1987-06-29 | Sequence controller with abnormal part display function |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS644812A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03154102A (en) * | 1989-11-10 | 1991-07-02 | Yokogawa Electric Corp | Distributed sequence control system |
-
1987
- 1987-06-29 JP JP62159618A patent/JPS644812A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03154102A (en) * | 1989-11-10 | 1991-07-02 | Yokogawa Electric Corp | Distributed sequence control system |
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