JPS5736303A - Digital operation controller for hydraulic power plant - Google Patents

Digital operation controller for hydraulic power plant

Info

Publication number
JPS5736303A
JPS5736303A JP11027780A JP11027780A JPS5736303A JP S5736303 A JPS5736303 A JP S5736303A JP 11027780 A JP11027780 A JP 11027780A JP 11027780 A JP11027780 A JP 11027780A JP S5736303 A JPS5736303 A JP S5736303A
Authority
JP
Japan
Prior art keywords
normal
reset
data
control
ram
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
JP11027780A
Other languages
Japanese (ja)
Inventor
Hirohisa Hayakawa
Tsuyoshi Mizoguchi
Hideo Kanzaki
Hiroshi Sugisaka
Hiroaki Aotsu
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 JP11027780A priority Critical patent/JPS5736303A/en
Publication of JPS5736303A publication Critical patent/JPS5736303A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric
    • G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Safety Devices In Control Systems (AREA)

Abstract

PURPOSE:To conduct the digital operation control of a hydraulic power plant excellently by delaying the start of process control in anticipation of the time required until a reset system is restored to normal operation in a normal system when an error is generated in the reset system and a transmission request is sent to the normal system at the operation of a signal system. CONSTITUTION:The titled controller is equipped with duplicated control operation parts, system A (1-A-6-A) and system B (1-B-6-B), and an output mode switching device 7. At the normal time of both systems, systems A and B output normal signals, operate plant status through data and collate and device the outpus of both systems to control and output a coincidence data. When a normal system identifies a reset system normally at the operation of a single system, the mormal system outputs an RAM data operation request to the reset system and start the transmission of data to the RAM and the reset system stores the received data in the RAM. If a reception error is generated at the time, the reset system outputs a transmission request to the normal system, which starts the process control in anticipation of the time required until the reset system is restored to the normal operation.
JP11027780A 1980-08-13 1980-08-13 Digital operation controller for hydraulic power plant Pending JPS5736303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11027780A JPS5736303A (en) 1980-08-13 1980-08-13 Digital operation controller for hydraulic power plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11027780A JPS5736303A (en) 1980-08-13 1980-08-13 Digital operation controller for hydraulic power plant

Publications (1)

Publication Number Publication Date
JPS5736303A true JPS5736303A (en) 1982-02-27

Family

ID=14531603

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11027780A Pending JPS5736303A (en) 1980-08-13 1980-08-13 Digital operation controller for hydraulic power plant

Country Status (1)

Country Link
JP (1) JPS5736303A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63196901A (en) * 1987-02-10 1988-08-15 Mitsubishi Electric Corp Programmable controller restoration system for multiplexing system
US5077336A (en) * 1987-01-17 1991-12-31 Sumitomo Rubber Industries, Ltd. Low-temperature insulating material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5077336A (en) * 1987-01-17 1991-12-31 Sumitomo Rubber Industries, Ltd. Low-temperature insulating material
JPS63196901A (en) * 1987-02-10 1988-08-15 Mitsubishi Electric Corp Programmable controller restoration system for multiplexing system

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