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JPS57211639A - Remote supervisory and controlling device - Google Patents

Remote supervisory and controlling device

Info

Publication number
JPS57211639A
JPS57211639A JP56097824A JP9782481A JPS57211639A JP S57211639 A JPS57211639 A JP S57211639A JP 56097824 A JP56097824 A JP 56097824A JP 9782481 A JP9782481 A JP 9782481A JP S57211639 A JPS57211639 A JP S57211639A
Authority
JP
Japan
Prior art keywords
processors
processor
same program
remote supervisory
controlling 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
Application number
JP56097824A
Other languages
Japanese (ja)
Inventor
Tadashi Nakajima
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56097824A priority Critical patent/JPS57211639A/en
Publication of JPS57211639A publication Critical patent/JPS57211639A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer And Data Communications (AREA)
  • Control By Computers (AREA)

Abstract

PURPOSE:To make the device inexpensive, by providing one stand-by shared processor for processors operated by the same program in case that processors of a remote supervisory and controlling device are made dual. CONSTITUTION:Since processors 21 and 31 function to subject signals from a processing device 1 for man-machine to required processings and transmit them to a slave station-side device 5 and transmit signals from the slave station- side device 5 to the processing device 1 for man-machine, it is possible to use the same program for processors 21 and 31. Consequently, a processor 22 is used as a stand-by shared processor common to processors operated by the same program and is connected to a switching circuit; and when the processor 21 or 31 is faulty, the processor 22 is switched to be used for processings of data related to an I/O 24 or 34.
JP56097824A 1981-06-23 1981-06-23 Remote supervisory and controlling device Pending JPS57211639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56097824A JPS57211639A (en) 1981-06-23 1981-06-23 Remote supervisory and controlling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56097824A JPS57211639A (en) 1981-06-23 1981-06-23 Remote supervisory and controlling device

Publications (1)

Publication Number Publication Date
JPS57211639A true JPS57211639A (en) 1982-12-25

Family

ID=14202471

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56097824A Pending JPS57211639A (en) 1981-06-23 1981-06-23 Remote supervisory and controlling device

Country Status (1)

Country Link
JP (1) JPS57211639A (en)

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