JPS5539980A - Urgent control circuit - Google Patents
Urgent control circuitInfo
- Publication number
- JPS5539980A JPS5539980A JP11300878A JP11300878A JPS5539980A JP S5539980 A JPS5539980 A JP S5539980A JP 11300878 A JP11300878 A JP 11300878A JP 11300878 A JP11300878 A JP 11300878A JP S5539980 A JPS5539980 A JP S5539980A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- present
- output
- signal
- processing 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.)
- Granted
Links
Landscapes
- Hardware Redundancy (AREA)
Abstract
PURPOSE: To simplify the construction and the control and enhance the reliability by providing in two sets of center processing device perliminarily constructed at present an abnormality detection circuit and a gate circuit having a double stabilizing circuit in distribution.
CONSTITUTION: When one center processing device CC1 is used at present and the other one CC2 is used for perliminary one, the present and preliminary signal ms 1 is 0, and ms 2 is 1. When the abnormal condition of the CC1 is detected by the system abnormal detection circuit DET1, the output signal thereof is 0 and the initiation signal st1 is 1 and ms1 is 1. Thus, the double stabilizing circuit comprising NAND circuits N 11, N 21 is inverted and ms 2 is 0 and the CC2 of the present use is indicated and the output of NAND circuit N22 is 1 and the initiation signal st 2 of the output of the OR circuit OR 2 is 1 to carry out the urgent control operation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53113008A JPS603220B2 (en) | 1978-09-14 | 1978-09-14 | emergency control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53113008A JPS603220B2 (en) | 1978-09-14 | 1978-09-14 | emergency control circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5539980A true JPS5539980A (en) | 1980-03-21 |
JPS603220B2 JPS603220B2 (en) | 1985-01-26 |
Family
ID=14601117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53113008A Expired JPS603220B2 (en) | 1978-09-14 | 1978-09-14 | emergency control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS603220B2 (en) |
-
1978
- 1978-09-14 JP JP53113008A patent/JPS603220B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS603220B2 (en) | 1985-01-26 |
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