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KR950003100Y1 - Programmable controller - Google Patents

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Publication number
KR950003100Y1
KR950003100Y1 KR2019900013213U KR900013213U KR950003100Y1 KR 950003100 Y1 KR950003100 Y1 KR 950003100Y1 KR 2019900013213 U KR2019900013213 U KR 2019900013213U KR 900013213 U KR900013213 U KR 900013213U KR 950003100 Y1 KR950003100 Y1 KR 950003100Y1
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humidity
programmable controller
unit
value
input
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KR920005020U (en
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송원석
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금성계전 주식회사
백중영
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/054Input/output
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/10Plc systems
    • G05B2219/11Plc I-O input output
    • G05B2219/1105I-O
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/10Plc systems
    • G05B2219/11Plc I-O input output
    • G05B2219/1108Relay module
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/10Plc systems
    • G05B2219/11Plc I-O input output
    • G05B2219/1157I-O used either as input or as output

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Programmable Controllers (AREA)

Abstract

내용 없음.No content.

Description

프로그래머블 콘트롤러Programmable controller

제1도는 일반적인 프로그래머블 콘트롤러 내부 블럭도.1 is a block diagram of a general programmable controller.

제2도는 본 고안에 따른 습도 센서의 저항과 습도와의 관계도.2 is a relationship between the resistance and humidity of the humidity sensor according to the present invention.

제3도는 본 고안에 따른 프로그래머블 콘트롤러의 블럭도.3 is a block diagram of a programmable controller according to the present invention.

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

1 : 중앙처리 장치 2 : 입출력 인터페이스1: central processing unit 2: input / output interface

3 : 데이타 메모리 4 : 사용자 프로그램 메모리3: data memory 4: user program memory

5 : 입, 출력부 6 : 습도센서5 input and output 6 humidity sensor

10 : 습도감지부 20 : 이상 검출 표시부10: humidity detection unit 20: abnormal detection display unit

30 : 아날로그 입력 카드부 40 : 프로그램장치30: analog input card part 40: program device

본 고안은 프로그래머블 콘트롤러(PLC)에 관한 것으로, 특히 습도가 많은 지역에서 적용되는 프로그래머블 콘트롤러에 있어서의 오동작을 방지할 수 있도록 기준치 이상의 습도를 검출하여 소정의 표시작동을 수행하도록 하는 프로그래머블 콘트롤러에 관한 것이다.The present invention relates to a programmable controller (PLC), and more particularly to a programmable controller that detects humidity above a reference value and performs a predetermined display operation so as to prevent a malfunction in a programmable controller applied in a humid environment. .

일반적으로 프로그래머볼 콘트롤러는 산업용 제어판넬에 설치하여 사용되므로, 주변 환경의 악조건에서 이용되는 경우가 많다.In general, the programmer controller is installed in an industrial control panel, so it is often used in adverse conditions of the surrounding environment.

특히 프로그래머블 콘트롤러는 그 내부 습도가 기준치 이상 상승되면 오동작을 일으키는 경우가 많으므로, 기준치 이상의 습도가 되면 이를 감지하여 오동작을 방지할 수 있도록 하는 기능이 절실히 요구되고 있다.In particular, the programmable controller often causes a malfunction when the internal humidity rises above the reference value. Therefore, a function that detects the humidity above the reference value and prevents the malfunction is urgently required.

그럼에도 불구하고, 종래의 프로그래머블 콘트롤러는 제1도에 도시한 블럭도에서와 같이 내부의 기준치 이상의 습도를 검출하여 오동작을 방지하도록 하는 기술은 전혀 제안되지 못하고 있었다.Nevertheless, the conventional programmable controller has not been proposed a technique to prevent the malfunction by detecting the humidity above the internal reference value as shown in the block diagram shown in FIG.

즉, 제1도에서 보는 바와같이 종래의 프로그래머블 콘트롤러는, 중앙 처리장치(1), 데이타메모리(3), 입출력 인터페이스(2), 사용자 프로그램 메모리(4) 및 입출력부(5)로 구성되어, 입력신호에 따른 사용자의 프로그램의 지시에 의거하여 소정의 제어를 수행하도록 한다.That is, as shown in FIG. 1, the conventional programmable controller includes a central processing unit 1, a data memory 3, an input / output interface 2, a user program memory 4, and an input / output unit 5, The predetermined control is performed based on the instruction of the user's program according to the input signal.

상기와 같은 종래의 프로그래머블 콘트롤러들은 산업용 제어반내의 설치 조건에 있어서 일반적으로 습도 90%RH이내에서 사용하도록 제한 규정되어 있으므로, 그 이상에서는 프로그래머블 콘트롤러의 오동작 및 신뢰성을 보장할 수 없다. 특히 동남아시아 수출용 프로그래머블 콘트롤러에 있어서는 습도에 대한 영향을 크게 받으므로 제어용 판넬의 오동작을 일으킬 가능성이 높아지게 된다.Conventional programmable controllers as described above are limited to use within 90% RH of humidity in terms of installation conditions in industrial control panels, and therefore, malfunction and reliability of the programmable controllers cannot be guaranteed. In particular, the programmable controller for export to Southeast Asia is highly affected by humidity, which increases the possibility of malfunction of the control panel.

결과적으로, 종래의 프로그래머블 콘트롤러에서는 내부가 기준치 이상의 습도가 되어도 이를 검출할 수 있는 기능이 없으므로 빈번한 오동작이 발생하여 프로그래머블 콘트롤러의 수명 및 신뢰성을 보장할 수 없게 되는 문제가 있었다.As a result, in the conventional programmable controller, since there is no function to detect the internal humidity even if the humidity is higher than the reference value, there is a problem in that frequent malfunction occurs and the lifetime and reliability of the programmable controller cannot be guaranteed.

이에따라, 본 고안은 상기의 문제점을 해소하기 위하여 안출한 것으로, 프로그래머블 콘트롤러 내부의 습도 상승에 의한 이상 검출표시회로를 내장하여 오동작을 방지하도록 하는 프로그래머블 콘트롤러를 제공하는 것을 목적으로 한다.Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a programmable controller for preventing malfunction by incorporating an abnormal detection display circuit caused by an increase in humidity inside the programmable controller.

이하, 본 고안의 구체적인 일예의 구성을 첨부도면에 의거하여 상세히 설명하고자 한다.Hereinafter, on the basis of the accompanying drawings the configuration of a specific example of the present invention will be described in detail.

제3도는 본 고안에 따른 프로그래머블 콘트롤러의 블럭도로서, 소정의 데이타를 기억하는 메모리(3)와, 상기 메모리(3)로부터의 기억정보와 소정의 입력신호를 비교연산하여 제어신호를 발생하는 중앙처리장치(1)와, 상기 중앙처리장치(1)의 명령신호를 해당장치에 전송하는 인터페이스(2) 및 입출력부(5)등을 일체로 구비한 프로그래머블 콘트롤러에 있어서, 상기 프로그래머블 콘트롤러 내부의 습도를 습도센서(6)에 의해 감지하는 습도감지부(10)와, 상기 습도감지부(10)로부터 기준치 이상의 습도 감지에 따른 출력전류(T)를 인가 받아 디지탈 값으로 변환하는 아날로그 입력카드부(30)와, 상기 아날로그 입력카드부(30)의 디지탈 값을 상기 중앙처리장치(1)로 전송하도록 소정의 프로그램화하는 프로그램장치(40)와, 상기 중앙처리장치(1)에 전송된 디지탈 데이타 값이 상기 입출력부(5)에 의해 독출되면 릴레이(RY)가 구동되어 램프(L)를 점등시킴으로써 습도 이상검출을 표시하는 이상 검출표시부(20)를 포함하여 구비한 것을 특징으로 한다.3 is a block diagram of a programmable controller according to the present invention, and includes a memory 3 for storing predetermined data, and a center for performing comparison operation on storage information from the memory 3 and a predetermined input signal to generate a control signal. A programmable controller having an integrated processor (1), an interface (2) for transmitting a command signal from the central processing unit (1) to a corresponding device, an input / output unit (5), and the like, wherein the humidity inside the programmable controller is Humidity sensing unit 10 for detecting the humidity by the humidity sensor 6, and the analog input card unit for receiving the output current (T) according to the sensing of humidity above the reference value from the humidity sensing unit 10 to convert to a digital value ( 30), a program device 40 for predetermined programming to transmit the digital value of the analog input card section 30 to the central processing unit 1, and a digital data transmitted to the central processing unit 1; When the other value is read by the input / output unit 5, the relay RY is driven to light up the lamp L. The abnormality detection display unit 20 which displays humidity abnormality detection is provided.

즉, 본 고안에 있어서의 습도이상 검출 표시부(20)는 릴레이(RY) 및 램프(L)로 구성되어 있고, 또 PLC외부로는 습도센서로부터 전류(T)신호를 받는 아날로그 입력 카드(Card)부(30)가 연결되어 있으며, 아날로그의 데이타를 중앙처리장치(CPU)(1)로 보내도록 하는 프로그램장치(Loader)(40)를 연결하여 구성하고 있다.That is, the humidity abnormality detection display unit 20 according to the present invention is composed of a relay RY and a lamp L, and an analog input card receiving a current T signal from the humidity sensor outside the PLC. The unit 30 is connected, and is configured by connecting a program unit (Loader) 40 to send analog data to the CPU 1.

다음, 상기와 같이 구성된 본 고안의 프로그래머블 콘트롤러의 작용효과를 설명하고자 한다.Next, the effects of the programmable controller of the present invention configured as described above will be described.

우선 제2도는 상대습도에 따라 센서 내부의 저항이 증감되는 것을 그래프로써 나타내고 있다.First, FIG. 2 shows a graph in which the resistance inside the sensor increases and decreases according to the relative humidity.

즉, 제3도에서 습도 감지부(10)를 보면 습도가 90%RH가 되었을때 제2도에서와 같이 저항값이 내부에서 변하게 되며, 저항값 변화에 따른 전류(T)가 흐르게 된다.That is, when the humidity sensing unit 10 is viewed from FIG. 3, when the humidity reaches 90% RH, the resistance value is changed inside as shown in FIG. 2, and the current T flows according to the resistance value change.

따라서, 습도센서 동작시 구동되는 전류(T)는 습도가 90%이상시 흐르는 전류(7)를 검출하여 아날로그 입력 카드부(30)로 입력시키면, 아날로그 입력 카드부(30)는 이 전류 신호를 받아서 그 값을 디지탈 값으로 변환하게 된다.Therefore, when the current T driven during the humidity sensor operation detects the current 7 flowing when the humidity is 90% or more and inputs it to the analog input card unit 30, the analog input card unit 30 outputs this current signal. Receive the value and convert it to a digital value.

이 디지탈 값을 프로그램장치(Loader)(40)를 이용해서 프로그램에 의해 프로그래머블 콘트롤러 내부의 중앙 처리장치(1)로 전송하고, 중앙처리장치(1)를 거쳐 입력부(5)에서는 이 디지탈 데이타 값을 읽어내게 된다.This digital value is transferred to the central processing unit 1 inside the programmable controller by a program using a program unit Loader 40, and the input unit 5 transfers the digital data value via the central processing unit 1. Will be read.

프로그램에 의해 이 값이 입력되면 출력부(5)의 한 접점을 '온'시킬수 있으므로 '온'된 접점이 릴레이(RY)를 구동시켜서 램프(L)를 '온'시키므로, 이상 검출표시부(20)에서는 습도 이상 검출의 표시 및 사용자의 이상 확인이 가능하게 된다.If this value is input by the program, one contact of the output unit 5 can be 'on', and thus the 'on' contact causes the relay RY to 'on' the lamp L, so the abnormality detection display unit 20 ), The humidity abnormality detection and the user's abnormality can be confirmed.

이상과 같이, 본 고안은 PLC내부에 습도센서를 내장하여 습도가 기준치(90%RH)이상으로 되면 그때의 출력 전류를 CPU가 감지하여 오동작을 방지하기 위해 외부로 표시할 수 있도록 되어 있어, 제품의 수명 및 신뢰성을 높일 수 있는 효과가 있다.As described above, the present invention incorporates a humidity sensor inside the PLC so that when the humidity reaches the reference value (90% RH) or higher, the CPU can detect the output current at that time and display it externally to prevent malfunction. It is effective to increase the service life and reliability of the.

Claims (1)

소정의 데이타를 기억하는 메모리(3)와, 상기 메모리(3)로부터의 기억정보와 소정의 입력신호를 비교연산하여 제어신호를 발생하는 중앙처리장치(1)와, 상기 중앙처리장치(1)의 명령신호를 해당장치에 전송하는 인터페이스(2) 및 입출력부(5)등을 일체로 구비한 프로그래머블 콘트롤러에 있어서, 상기 프로그래머블 콘트롤러 내부의 습도를 습도센서(6)에 의해 감지하는 습도감지부(10)와, 상기 습도감지부(10)로부터 기준치 이상의 습도 감지에 따른 출력 전류(T)를 인가 받아 디지탈 값으로 변환하는 아날로그 입력카드부(30)와, 상기 아날로그 입력카드부(30)의 디지탈 값을 상기 중앙처리장치(1)로 전송하도록 소정의 프로그램화하는 프로그램장치(40)와, 상기 중앙처리장치(1)에 전송된 디지탈 데이타 값이 상기 입출력부(5)에 의해 독출되면 릴레이(RY)가 구동되어 램프(L)를 점등시킴으로써 습도 이상 검출을 표시하는 이상 검출표시부(20)를 포함하여 구비한 것을 특징으로 하는 프로그래머블 콘트롤러.A memory 3 for storing predetermined data; In the programmable controller having an interface (2) and the input and output unit (5) for transmitting the command signal to the corresponding device, the humidity sensor for detecting the humidity inside the programmable controller by the humidity sensor (6) 10) and the analog input card unit 30, which receives the output current T according to the sensing of humidity above the reference value from the humidity sensing unit 10 and converts it into a digital value, and the digital of the analog input card unit 30. A program device 40 for programming a value to be transmitted to the CPU 1, and a digital data value transmitted to the CPU 1 when read by the input / output unit 5; RY) driven And an abnormality detection display section (20) for displaying a humidity abnormality detection by turning on a lamp (L).
KR2019900013213U 1990-08-30 1990-08-30 Programmable controller Expired - Fee Related KR950003100Y1 (en)

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KR2019900013213U KR950003100Y1 (en) 1990-08-30 1990-08-30 Programmable controller

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KR2019900013213U KR950003100Y1 (en) 1990-08-30 1990-08-30 Programmable controller

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KR920005020U KR920005020U (en) 1992-03-26
KR950003100Y1 true KR950003100Y1 (en) 1995-04-21

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