KR920008565A - How PLC handles commands - Google Patents

How PLC handles commands Download PDF

Info

Publication number
KR920008565A
KR920008565A KR1019900016894A KR900016894A KR920008565A KR 920008565 A KR920008565 A KR 920008565A KR 1019900016894 A KR1019900016894 A KR 1019900016894A KR 900016894 A KR900016894 A KR 900016894A KR 920008565 A KR920008565 A KR 920008565A
Authority
KR
South Korea
Prior art keywords
command
processing
command code
determining whether
plc
Prior art date
Application number
KR1019900016894A
Other languages
Korean (ko)
Other versions
KR930005707B1 (en
Inventor
이동률
Original Assignee
정용문
삼성전자 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 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019900016894A priority Critical patent/KR930005707B1/en
Publication of KR920008565A publication Critical patent/KR920008565A/en
Application granted granted Critical
Publication of KR930005707B1 publication Critical patent/KR930005707B1/en

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
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Programmable Controllers (AREA)
  • Computer And Data Communications (AREA)

Abstract

내용 없음.No content.

Description

PLC의 명령어 처리방법PLC command processing method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명에 다른 하드웨어 블록도.1 is a hardware block diagram according to the present invention.

제2도는 본 발명에 따른 제어흐름도.2 is a control flow diagram according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 어드레스버퍼 11 : 데이타버퍼10: address buffer 11: data buffer

12,13 : 제1-2메모리 14,15 : 제3-4메모리12,13: 1-2 memory 14,15: 3-4 memory

16 : 버퍼래치 20 : HSU16: buffer latch 20: HSU

Claims (1)

HSU(20)를 내부에 구비한 PLC의 명령어 처리 방법에 있어서, 데이타 버퍼를 통하여 명령 코드 해석 요구가 입력되었는가를 판단하는 제1과정과, 상기 제1과정으로부터 명령코드가 입력되었으면 명령코드를 해석하기 위한 제2과정과, 상기 제2과정으로부터 중앙처리장치의 개입 요구 명령어가 걸려 있는가를 판단하는 제3과정과, 상기 제3과정으로부터 개입 요구 명령이 아니면 프로그램카운터를 1증가시키고 제2과정으로 리턴하기 위한 제4과정과, 상기 제3과장으로부터 명령코드의 처리가 완료인가를 판단하기 위한 제5과장과, 상기 제5과정으로부터 완료이면 사용자 프로그램의 처리결과를 출력하고 완료가 아니면 상기 중앙처리장치로 인터럽트를 발생시키는 제6과정으로 이루어짐을 특징으로 하는 PLC의 명령어 처리방법.In a command processing method of a PLC having an HSU 20 therein, a first process of determining whether a command code interpretation request is input through a data buffer, and a command code is interpreted if a command code is input from the first process. And a third step of determining whether or not an intervention request command of the central processing unit is caught from the second step, and if not an intervention request command from the third step, increases the program counter by one and returns to the second step. A fourth process for determining, and a fifth chapter for determining whether the processing of the command code is completed from the third department, and outputting the processing result of the user program if the processing is completed from the fifth process. And a sixth process of generating an interrupt. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019900016894A 1990-10-22 1990-10-22 Command processing method of plc KR930005707B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900016894A KR930005707B1 (en) 1990-10-22 1990-10-22 Command processing method of plc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900016894A KR930005707B1 (en) 1990-10-22 1990-10-22 Command processing method of plc

Publications (2)

Publication Number Publication Date
KR920008565A true KR920008565A (en) 1992-05-28
KR930005707B1 KR930005707B1 (en) 1993-06-24

Family

ID=19305005

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900016894A KR930005707B1 (en) 1990-10-22 1990-10-22 Command processing method of plc

Country Status (1)

Country Link
KR (1) KR930005707B1 (en)

Also Published As

Publication number Publication date
KR930005707B1 (en) 1993-06-24

Similar Documents

Publication Publication Date Title
KR920004962A (en) Virtual long command memory device for digital signal processing device and method of generating the command
KR890017604A (en) Micro computer systems
KR930002943A (en) Microprocessors and Memory Management Systems Having the Same
KR910008565A (en) Branch control circuit
KR940024600A (en) Data processing method and apparatus
KR920008565A (en) How PLC handles commands
KR920015831A (en) Database Creation and Program Loading Method in Private Exchange
KR970049813A (en) Circuits and Methods for Evaluating Fuzzy Logic Rules
JPS6045998A (en) Memory control system
KR910010299A (en) Bit operation processing circuit of programmable controller
KR890015124A (en) Information processing device
KR920013181A (en) Picture, Hangul, and button area editing system for graphic screen based programming
KR900018834A (en) How to Create Action Elements for Message Processing System Access
KR970031707A (en) METHOD FOR SAVING AND OUTPUTING RESTART CAUSE FOR HIGH LEVEL PROCESSOR IN THE FULL ELECTRONIC SWITCHING SYSTEM
KR910005123A (en) How to handle library of programmable controller
KR930002112A (en) How to perform calculation function using typewriter
KR970012204A (en) Controlling Hotword Multi-Expression of Text Objects in Hypermedia Systems
KR950000311A (en) How to execute user defined processing function in the robot controller
KR960042426A (en) How to search for headwords
KR900010550A (en) Command fetch device
KR890017634A (en) Control method of contact processing of wide line
KR970055629A (en) Decoding Method of Viterbi Decoder
KR920003765A (en) How to select OSD background color
JPH03141425A (en) Logic arithmetic system
JPH02201541A (en) Compiling system

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20020527

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee