JPS5739401A - Control device - Google Patents

Control device

Info

Publication number
JPS5739401A
JPS5739401A JP11167480A JP11167480A JPS5739401A JP S5739401 A JPS5739401 A JP S5739401A JP 11167480 A JP11167480 A JP 11167480A JP 11167480 A JP11167480 A JP 11167480A JP S5739401 A JPS5739401 A JP S5739401A
Authority
JP
Japan
Prior art keywords
plant
command
control device
protective
program
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
JP11167480A
Other languages
Japanese (ja)
Inventor
Nobuyuki Ogura
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 JP11167480A priority Critical patent/JPS5739401A/en
Publication of JPS5739401A publication Critical patent/JPS5739401A/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

Abstract

PURPOSE:To operate the protective interlocking by unified hardware, without increasing the hardware, by providing the protective inter-locking which is different in each apparatus, as a softward program. CONSTITUTION:An apparatus control device 3 consists of a sequence control device of a stored program system, inputs an automatic command 1, a manual command 2, a job site contact 5, etc. from a high rank automatic command device, and operates a plant apparatus 4. The apparatus control device 3 is provided with a program for a protective logic part 6 for discriminating a state of a plant and a plant apparatus from the job site contact 5. The protective logic part discriminates by a state of the plant whether an operation should be permitted or not as instructed by an input command, when the automatic command and the manual command are inputted, and on the other hand, it has a function for transmitting a signal for operating the plant apparatus without requiring an input command, in case when it is necessary for safety of the plant.
JP11167480A 1980-08-15 1980-08-15 Control device Pending JPS5739401A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11167480A JPS5739401A (en) 1980-08-15 1980-08-15 Control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11167480A JPS5739401A (en) 1980-08-15 1980-08-15 Control device

Publications (1)

Publication Number Publication Date
JPS5739401A true JPS5739401A (en) 1982-03-04

Family

ID=14567305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11167480A Pending JPS5739401A (en) 1980-08-15 1980-08-15 Control device

Country Status (1)

Country Link
JP (1) JPS5739401A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6215503A (en) * 1985-07-13 1987-01-23 Fujikura Ltd Zero-dispersion single-mode optical fiber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6215503A (en) * 1985-07-13 1987-01-23 Fujikura Ltd Zero-dispersion single-mode optical fiber

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