JPS56168205A - Operation handling block equipment - Google Patents

Operation handling block equipment

Info

Publication number
JPS56168205A
JPS56168205A JP7318780A JP7318780A JPS56168205A JP S56168205 A JPS56168205 A JP S56168205A JP 7318780 A JP7318780 A JP 7318780A JP 7318780 A JP7318780 A JP 7318780A JP S56168205 A JPS56168205 A JP S56168205A
Authority
JP
Japan
Prior art keywords
switch
block equipment
operation handling
handling block
operation block
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
JP7318780A
Other languages
Japanese (ja)
Inventor
Yukio Nagaoka
Katsuichi Kishi
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 JP7318780A priority Critical patent/JPS56168205A/en
Publication of JPS56168205A publication Critical patent/JPS56168205A/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

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 get rid of a malfunction, by making a decision as to an operation of a switch. CONSTITUTION:Switch position signals P1, P2... from an operation switch 1 are inputted to an operation block 3. Position signals for inhibiting the operation are also inputted to the operation block 3. If the operation switch 1 is operated to the position which has been inhibited, a gate circuit in the operation block 3 inhibits an outputs of a signal corresponding to the switch. Accordingly, a state of an output signal of the operation block 3 is maintained as before. In the event of an error, even if the switch is operated to the position which has been inhibited, in a flurry, a malfunction of a plant is not caused.
JP7318780A 1980-05-30 1980-05-30 Operation handling block equipment Pending JPS56168205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7318780A JPS56168205A (en) 1980-05-30 1980-05-30 Operation handling block equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7318780A JPS56168205A (en) 1980-05-30 1980-05-30 Operation handling block equipment

Publications (1)

Publication Number Publication Date
JPS56168205A true JPS56168205A (en) 1981-12-24

Family

ID=13510878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7318780A Pending JPS56168205A (en) 1980-05-30 1980-05-30 Operation handling block equipment

Country Status (1)

Country Link
JP (1) JPS56168205A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02157902A (en) * 1988-12-09 1990-06-18 Fanuc Ltd Function selecting system for control switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02157902A (en) * 1988-12-09 1990-06-18 Fanuc Ltd Function selecting system for control switch

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