JPS5866102A - Sequence controller - Google Patents

Sequence controller

Info

Publication number
JPS5866102A
JPS5866102A JP16471481A JP16471481A JPS5866102A JP S5866102 A JPS5866102 A JP S5866102A JP 16471481 A JP16471481 A JP 16471481A JP 16471481 A JP16471481 A JP 16471481A JP S5866102 A JPS5866102 A JP S5866102A
Authority
JP
Japan
Prior art keywords
memory
output
data
error
line
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
JP16471481A
Other languages
Japanese (ja)
Inventor
Kunihiro Oe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP16471481A priority Critical patent/JPS5866102A/en
Publication of JPS5866102A publication Critical patent/JPS5866102A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/70—Masking faults in memories by using spares or by reconfiguring
    • G11C29/74—Masking faults in memories by using spares or by reconfiguring using duplex memories, i.e. using dual copies

Abstract

PURPOSE:To recover easily a data destruction part of a memory, by making the writable and readable memory dual to prevent the stop of the control function and the discontinuity of the control due to data destruction of the memory. CONSTITUTION:Data outputted to memory output lines 13 and 14 are sent to parity checkers 4 and 3; and if the parity is abnormal, an error signal is outputted to an error output signal line 15 or 16. An output line 17 is turned on when the output of a memory 1 is defective, and an output line 18 is turned on when the output of a memory 2 is defective, and one of outputs of memory output lines 13 and 14 which has no parity error is outputted to a data output line 19. In case that the memory where the parity error occurs is recovered, outputs of error output lines 15 and 16 are inputted to an OR gate 8, and a CPU is interrupted through an interrupt line 20, and data obtained on the data output line 19 from the CPU is written in the memory again.
JP16471481A 1981-10-15 1981-10-15 Sequence controller Pending JPS5866102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16471481A JPS5866102A (en) 1981-10-15 1981-10-15 Sequence controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16471481A JPS5866102A (en) 1981-10-15 1981-10-15 Sequence controller

Publications (1)

Publication Number Publication Date
JPS5866102A true JPS5866102A (en) 1983-04-20

Family

ID=15798484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16471481A Pending JPS5866102A (en) 1981-10-15 1981-10-15 Sequence controller

Country Status (1)

Country Link
JP (1) JPS5866102A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61183702A (en) * 1985-02-08 1986-08-16 Sony Corp Electronic equipment
JPS61199104A (en) * 1985-03-01 1986-09-03 Hitachi Ltd Memory multiplexing control system
JPS62163103A (en) * 1986-01-14 1987-07-18 Omron Tateisi Electronics Co Process controller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61183702A (en) * 1985-02-08 1986-08-16 Sony Corp Electronic equipment
JPS61199104A (en) * 1985-03-01 1986-09-03 Hitachi Ltd Memory multiplexing control system
JPS62163103A (en) * 1986-01-14 1987-07-18 Omron Tateisi Electronics Co Process controller

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