JPS54155380A - Sequence control device - Google Patents
Sequence control deviceInfo
- Publication number
- JPS54155380A JPS54155380A JP6326478A JP6326478A JPS54155380A JP S54155380 A JPS54155380 A JP S54155380A JP 6326478 A JP6326478 A JP 6326478A JP 6326478 A JP6326478 A JP 6326478A JP S54155380 A JPS54155380 A JP S54155380A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- trouble
- output
- signal
- control device
- 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
- Safety Devices In Control Systems (AREA)
Abstract
PURPOSE: To exactly protect a plant by providing a high speed output signal separating circuit at the output circuit of a sequence control device.
CONSTITUTION: Data D from an arithmetic processor 2 conduct object transistors Q1WQ5 through distributors 121W125, respectively to thereby drive operating terminal units or the like. A trouble detecting circuit 14 collates a data signal D to a status signal D-IN and outputs an output circuit trouble signal S1 to a power switching circuit 11 when the comparison is not coincident. Trouble detecting circuits 17W19 detect the trouble in a memory, an input circuit and arithmetic circuit and outputs trouble signals S2WS4 to a power switching circuit 11. When the circuit 11 receives a sequence control device separation request signal S5 through an external circuit 20 and the signals S1WS4, it will drop the excitation power supply voltage of output relays RY-O1-RY-O5 to thereby deenergize all the output relays.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6326478A JPS54155380A (en) | 1978-05-29 | 1978-05-29 | Sequence control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6326478A JPS54155380A (en) | 1978-05-29 | 1978-05-29 | Sequence control device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54155380A true JPS54155380A (en) | 1979-12-07 |
Family
ID=13224243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6326478A Pending JPS54155380A (en) | 1978-05-29 | 1978-05-29 | Sequence control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54155380A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57129321A (en) * | 1981-02-02 | 1982-08-11 | Yamatake Honeywell Co Ltd | Combustion control device |
JPS62107301A (en) * | 1985-11-05 | 1987-05-18 | Mitsubishi Electric Corp | Programmable controller |
KR20030009906A (en) * | 2001-07-24 | 2003-02-05 | 한국항공우주산업 주식회사 | Apparatus for emergency dropping a armoring thing mounted on aircraft |
-
1978
- 1978-05-29 JP JP6326478A patent/JPS54155380A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57129321A (en) * | 1981-02-02 | 1982-08-11 | Yamatake Honeywell Co Ltd | Combustion control device |
JPS62107301A (en) * | 1985-11-05 | 1987-05-18 | Mitsubishi Electric Corp | Programmable controller |
KR20030009906A (en) * | 2001-07-24 | 2003-02-05 | 한국항공우주산업 주식회사 | Apparatus for emergency dropping a armoring thing mounted on aircraft |
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