JPS57139816A - Controller having self-checking function - Google Patents

Controller having self-checking function

Info

Publication number
JPS57139816A
JPS57139816A JP2641481A JP2641481A JPS57139816A JP S57139816 A JPS57139816 A JP S57139816A JP 2641481 A JP2641481 A JP 2641481A JP 2641481 A JP2641481 A JP 2641481A JP S57139816 A JPS57139816 A JP S57139816A
Authority
JP
Japan
Prior art keywords
signal
checking
signal line
generating circuit
place data
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
Application number
JP2641481A
Other languages
Japanese (ja)
Other versions
JPS6325755B2 (en
Inventor
Juichi Saito
Shunji Matsuoka
Hideo Mori
Kazunori Jinno
Yasuo Aoki
Yasuo Kawamata
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.)
TOUHOKU DENRIYOKU KK
Tohoku Electric Power Co Inc
Hitachi Ltd
Original Assignee
TOUHOKU DENRIYOKU KK
Tohoku Electric Power Co Inc
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 TOUHOKU DENRIYOKU KK, Tohoku Electric Power Co Inc, Hitachi Ltd filed Critical TOUHOKU DENRIYOKU KK
Priority to JP2641481A priority Critical patent/JPS57139816A/en
Publication of JPS57139816A publication Critical patent/JPS57139816A/en
Publication of JPS6325755B2 publication Critical patent/JPS6325755B2/ja
Granted 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
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • 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
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0428—Safety, monitoring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To check data, by providing a word serial signal generating circuit for checking other place data, and sending out a checking signal to a receiving part of the other place data in an area remote from a controller of the same control system, and a signal line. CONSTITUTION:A signal generating circuit for generating a word serial signal for checking an other place data is provided, and when checking said data, the checking signal is sent out to the receiving part and the signal line. For instance, a checking start flag signal is outputted by a checking unit 3, is sent out to a controlling circuit 1 through a signal line 311, and also is sent out to the signal generating circuit 4 through a signal line 312. Subsequently, it is detected that the controlling circuit 1 has entered into a checking state by the signal generating circuit 4, and also a command for switching a changeover switch 401 to the side of a signal line 421 from a signal line 22, through a signal line 319 from the checking unit 3. Subsequently, a word serial bit parallel signal for checking is inputted through the signal line 421 to a receiving part 2 of the other place data, and a signal line 23 and 24, by the signal generating circuit 4, and is checked by the controlling circuit 1.
JP2641481A 1981-02-25 1981-02-25 Controller having self-checking function Granted JPS57139816A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2641481A JPS57139816A (en) 1981-02-25 1981-02-25 Controller having self-checking function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2641481A JPS57139816A (en) 1981-02-25 1981-02-25 Controller having self-checking function

Publications (2)

Publication Number Publication Date
JPS57139816A true JPS57139816A (en) 1982-08-30
JPS6325755B2 JPS6325755B2 (en) 1988-05-26

Family

ID=12192883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2641481A Granted JPS57139816A (en) 1981-02-25 1981-02-25 Controller having self-checking function

Country Status (1)

Country Link
JP (1) JPS57139816A (en)

Also Published As

Publication number Publication date
JPS6325755B2 (en) 1988-05-26

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