JPS5680705A - Controller - Google Patents
ControllerInfo
- Publication number
- JPS5680705A JPS5680705A JP15838679A JP15838679A JPS5680705A JP S5680705 A JPS5680705 A JP S5680705A JP 15838679 A JP15838679 A JP 15838679A JP 15838679 A JP15838679 A JP 15838679A JP S5680705 A JPS5680705 A JP S5680705A
- Authority
- JP
- Japan
- Prior art keywords
- output
- external device
- pulse
- controller
- routine
- 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
Abstract
PURPOSE: To prevent the malfunction and falut of an external device by permitting a controller, performing program operation, to AND the output of a monostable multivibrator, triggered in every routine which passes through within constant time and a control output.
CONSTITUTION: On I/O board 4 of the controller, output interface circuit 41 generates trigger pulse eT in addition to normal control output signals eb and es. In normal operation, trigger pulse eT is generated every time the routine which passes through at least once within constant time T and applied to retrigger tupe monostable multivibrator (MMV)42 whose output pulse width is greater than T. Danger signal eD of the output interface circuit is ANDed with negative pulse Q' of MMV42 and safety-side signal eS is ORed with positive pulse Q to apply AND and OR signals to the external device, so that even if a microprocessor enters into a runaway state, the accident of the external device can be prevented.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15838679A JPS5680705A (en) | 1979-12-06 | 1979-12-06 | Controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15838679A JPS5680705A (en) | 1979-12-06 | 1979-12-06 | Controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5680705A true JPS5680705A (en) | 1981-07-02 |
Family
ID=15670581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15838679A Pending JPS5680705A (en) | 1979-12-06 | 1979-12-06 | Controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5680705A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11685819B2 (en) | 2018-12-07 | 2023-06-27 | Sabic Global Technologies B.V. | Polyolefin compositions with improved oxygen scavenging capability |
-
1979
- 1979-12-06 JP JP15838679A patent/JPS5680705A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11685819B2 (en) | 2018-12-07 | 2023-06-27 | Sabic Global Technologies B.V. | Polyolefin compositions with improved oxygen scavenging capability |
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