JPS5638601A - Multiplex control unit - Google Patents

Multiplex control unit

Info

Publication number
JPS5638601A
JPS5638601A JP11296179A JP11296179A JPS5638601A JP S5638601 A JPS5638601 A JP S5638601A JP 11296179 A JP11296179 A JP 11296179A JP 11296179 A JP11296179 A JP 11296179A JP S5638601 A JPS5638601 A JP S5638601A
Authority
JP
Japan
Prior art keywords
control
control unit
unit
backup
failure
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
JP11296179A
Other languages
Japanese (ja)
Inventor
Hisanori Miyagaki
Yoshitomo Murakami
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11296179A priority Critical patent/JPS5638601A/en
Publication of JPS5638601A publication Critical patent/JPS5638601A/en
Pending legal-status Critical Current

Links

Landscapes

  • Regulation And Control Of Combustion (AREA)
  • Feedback Control In General (AREA)
  • Safety Devices In Control Systems (AREA)

Abstract

PURPOSE: To suppress the disrtubance at changeover to th backup unit, through the constitution of the control unit every control objective so that another control objective can be controlled and the backup to avoid mutual backup system in case of failure of other control units.
CONSTITUTION: Th control variables B1WB4 are individually controlled with the control circuits P1WP4 of th control units CU1WCU4 provided as the main system respectively based on the input signal from the input circuits IN1WIN4. Further, the control unit CU1 is taken as the backup system of CU2, CU2 is as CU3, CU3 is as CU4, and CU4 is taken as CU1 respectively. If the control unit CU1 is in failure, the failure detection relay of the changeover unit CH1 is activated with the self- diagnostic circuts SD1 and the control variable B1 is controlled with the output of the control unit CU4.
COPYRIGHT: (C)1981,JPO&Japio
JP11296179A 1979-09-05 1979-09-05 Multiplex control unit Pending JPS5638601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11296179A JPS5638601A (en) 1979-09-05 1979-09-05 Multiplex control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11296179A JPS5638601A (en) 1979-09-05 1979-09-05 Multiplex control unit

Publications (1)

Publication Number Publication Date
JPS5638601A true JPS5638601A (en) 1981-04-13

Family

ID=14599862

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11296179A Pending JPS5638601A (en) 1979-09-05 1979-09-05 Multiplex control unit

Country Status (1)

Country Link
JP (1) JPS5638601A (en)

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