KR940015827A - How to modify PL program - Google Patents

How to modify PL program Download PDF

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Publication number
KR940015827A
KR940015827A KR1019920024301A KR920024301A KR940015827A KR 940015827 A KR940015827 A KR 940015827A KR 1019920024301 A KR1019920024301 A KR 1019920024301A KR 920024301 A KR920024301 A KR 920024301A KR 940015827 A KR940015827 A KR 940015827A
Authority
KR
South Korea
Prior art keywords
program
command
production line
modified
memory
Prior art date
Application number
KR1019920024301A
Other languages
Korean (ko)
Inventor
이재영
Original Assignee
김희수
금성기전 주식회사
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 김희수, 금성기전 주식회사 filed Critical 김희수
Priority to KR1019920024301A priority Critical patent/KR940015827A/en
Publication of KR940015827A publication Critical patent/KR940015827A/en

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Abstract

본 발명은 피엘씨 프로그램 수정방법에 관한것으로, 종래에는 피엘씨로 생산라인을 제어하는 상태에서 전체시스템의 프로그램인 피엘씨 프로그램 수행중에 일부생산라인 구동에 해당하는 사용자프로그램일수를 수정할 경우 전체 시스템에 해당하는 피엘씨 프로그램을 중단후 일부를 수정하여 프로그램 수정에 따라 전체 생산라인이 중단되어 생산성 저하로 피엘씨의 성능을 저하시키는 문제점이 있었다.The present invention relates to a method for modifying a PLC program, and in the related art, when a user program number corresponding to driving of a part of a production line is modified during the execution of a PLC program, which is a program of the entire system, while the production line is controlled by PLC. After stopping the corresponding PRC program, a part of the program was modified and the entire production line was interrupted according to the program modification.

본 발명은 상기와 같은 종래의 문제점을 감안하여 생산라인에서 전체시스템을 제어하는 피엘씨 프로그램 수행도중 생산라인 일부에 해당하는 사용자 프로그램의 일부를 수정할때 프로그램을 저장하는 메모리의 일부에 수정명령, 수정하고자하는 명령, 수정어드레스를 정하여 수정하므로 전체시스템 중단없이 일부라인 수정이 가능하여 피엘씨의 성능을 향상하는 효과가 있다.The present invention has been made in view of the above-mentioned problems in the production line during the execution of the PLC program controlling the entire system in the production line when modifying a part of the user program corresponding to a part of the production line, the correction command, modification to a part of the memory to store the program It is possible to modify some lines without interruption of the whole system by modifying the desired commands and modification addresses, thereby improving the performance of PL.

Description

피엘씨 프로그램 수정방법How to modify PL program

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 사용된 메모리의 상태도. 제3도는 본 발명의 피엘씨 프로그램 수정 예시도. 제4도는 본 발명의 피엘씨 프로그램 수정시 신호 흐름도.2 is a state diagram of a memory used in the present invention. 3 is a diagram illustrating a modified PLC program of the present invention. 4 is a signal flow diagram when modifying the PLC program of the present invention.

Claims (1)

사용자 프로그램 수정시 종료명령을 검사하는 단계와, 종료명령 상태에서 수정할 어드레스, 명령어 수정명령어를 판독하는 단계와, 수정명령어 존재 상태에서 수정할 어드레스에 있는 명령어 스텝수와 수정할 명령어 스텝수를 비교하는 단계와, 어드레스에 있는 명령어 스텝수가 크면 수정할 어드레스에 명령어 기록한후 수정명어를 클리어하는 단계와, 수정할 명령어 스텝수가 크면 메모리의 미사용 메모리를 검사하는 단계와, 메모리의 미사용 영역이 존재하면 명령어를 기록하는 단계와, 메모리의 미상용 영역이 없으면 메모리의 사용자 프로그램 수정영역을 검사하는 단계와, 사용자 프로그램 수정영역이 없으면 에러 상태로 표시하고, 존재하면 수정할 명령어를 기록한후 사용자 프로그램 수정영역을 세트시키는 단계로 수정하는 피엘씨 프로그램 수정방법.Checking an end command when the user program is modified, reading an address to be corrected in the end command state, reading a command modification command, and comparing the number of command steps at the address to be corrected with the number of command steps to be modified in the presence of the correct command; Writing a command to the address to be modified if the number of instruction steps in the address is large and clearing the modified term; checking the unused memory of the memory if the number of instruction steps to be modified is large; If there is no unused area of memory, check the user program modification area of memory, if there is no user program modification area, mark as error status, if it exists, record the command to modify and set user program modification area. PL C Frog How to fix. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920024301A 1992-12-15 1992-12-15 How to modify PL program KR940015827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920024301A KR940015827A (en) 1992-12-15 1992-12-15 How to modify PL program

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920024301A KR940015827A (en) 1992-12-15 1992-12-15 How to modify PL program

Publications (1)

Publication Number Publication Date
KR940015827A true KR940015827A (en) 1994-07-21

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Application Number Title Priority Date Filing Date
KR1019920024301A KR940015827A (en) 1992-12-15 1992-12-15 How to modify PL program

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KR (1) KR940015827A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990060139A (en) * 1997-12-31 1999-07-26 이종수 Error Correction Method of PL Program
KR100396791B1 (en) * 2000-10-18 2003-09-02 주식회사 하이닉스반도체 Access apparatus of program memory
KR100464251B1 (en) * 1997-12-17 2005-05-03 엘지산전 주식회사 How to modify program during PLC

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100464251B1 (en) * 1997-12-17 2005-05-03 엘지산전 주식회사 How to modify program during PLC
KR19990060139A (en) * 1997-12-31 1999-07-26 이종수 Error Correction Method of PL Program
KR100396791B1 (en) * 2000-10-18 2003-09-02 주식회사 하이닉스반도체 Access apparatus of program memory

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