KR20140114085A - Method for Device Control with Human Machine Interface System - Google Patents

Method for Device Control with Human Machine Interface System Download PDF

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Publication number
KR20140114085A
KR20140114085A KR1020130028378A KR20130028378A KR20140114085A KR 20140114085 A KR20140114085 A KR 20140114085A KR 1020130028378 A KR1020130028378 A KR 1020130028378A KR 20130028378 A KR20130028378 A KR 20130028378A KR 20140114085 A KR20140114085 A KR 20140114085A
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KR
South Korea
Prior art keywords
control
target device
control target
user terminal
hmi system
Prior art date
Application number
KR1020130028378A
Other languages
Korean (ko)
Inventor
박명환
Original Assignee
엘에스산전 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.)
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Publication date
Application filed by 엘에스산전 주식회사 filed Critical 엘에스산전 주식회사
Priority to KR1020130028378A priority Critical patent/KR20140114085A/en
Publication of KR20140114085A publication Critical patent/KR20140114085A/en

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    • 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
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/15—Plc structure of the system
    • G05B2219/15018—Communication, serial data transmission, modem

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Programmable Controllers (AREA)

Abstract

The present invention enables the control target device to be controlled together with the user terminal without changing the physical connection between the HMI system and the control target device or obstructing its operation. The user terminal transmits the control data to the HMI system via the IP network. The HMI system controls the control target device according to the control data received from the user terminal, and transmits the control result to the user terminal. According to the present invention, an operator can operate a control target device at a remote place without visiting a site where a control target device such as a PLC is installed.

Description

Technical Field [0001] The present invention relates to a method for controlling an apparatus connected to an HMI system,

The present invention relates to a method of controlling an apparatus through an HMI system, and more particularly, it is possible to control each control target apparatus through a user terminal without changing a physical connection between the HMI system and a control target apparatus.

In the industrial field, HMI (Human Machine Interface) system is used to control and monitor various control target devices such as PLC (Programmable Logic Controller). HMI system and control target devices mainly use serial communication such as RS-485 And sends and receives data through.

In addition, the operator may control the control target device by using a personal computer (PC) separate from the HMI system.

At this time, the operator directly connects and controls the personal computer and the control target device through the serial port. If the HMI system is connected to the serial port of the controlled device during this process, remove the cable and connect it to the personal computer.

However, this conventional method causes various problems.

That is, in order for the operator to control the control target device, the user must directly visit the factory site with the personal computer.

In addition, since the cable connected to the HMI system must be disconnected and reconnected to the personal computer, it is inconvenient and there is a time gap in which the controlled device can not be controlled through the HMI system.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems and it is an object of the present invention to enable a control target device to be operated together with a user terminal such as a personal computer without changing the operation or physical connection between the HMI system and the control target device It has its purpose.

According to another aspect of the present invention, there is provided a method of controlling a device connected to an HMI system, the method comprising: transmitting, by a remote control program running on a user terminal, control data for a control target device to a specific IP address and port number ; A server program executed in the HMI system (the server program is connected to the IP network through the specific IP address and port number) receiving control data transmitted by the user terminal; A local control program executed in the HMI system communicates with the control target device according to control data received from the user terminal to control the control target device and receive control result data; Transmitting the control result data received from the control target device to the remote control program of the user terminal by the server program; And receiving and processing the control result data from the server program by the remote control program.

The control target device may include a PLC (Programmable Logic Controller), and the HMI system and the control target device may be connected to each other through serial communication.

The remote control program executed by the user terminal provides a user interface environment for controlling the control target device through serial communication. When an operator inputs a control command for the control target device, It may be configured to transmit control data to the specific IP address and port number instead of communicating.

According to the present invention, a control target device can be operated together with a user terminal such as a personal computer without changing the operation or physical connection between the HMI system and the control target device.

The operator can control the controlled device at a remote place without visiting the site where the control target device such as PLC is installed, and can confirm / operate the alarm or warning on the site. Since the remote access is possible, it is possible to control the control target device in the area which is difficult to access directly. Since the HMI system is continuously operated, continuous field operation is possible.

There is no reason for the user interface of the remote control program installed in the remote terminal to be distinguished from the user interface of the HMI system. Therefore, it is possible for the operator to control the control target device as if controlling by the serial communication through the HMI system You may.

1 shows an example in which a user terminal, an HMI system, and a control target device are interconnected through an IP network and a serial communication,
2 shows an example of a configuration of a user terminal and an HMI system,
3 is a specific example of a process of controlling a control target device using a remote terminal according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1, the HMI system 13 communicates with various on-site control target devices 14 to perform control and monitoring of the control target devices 14 and also controls the IP network 12 to communicate with the user terminal 11. [ Lt; / RTI >

The control subject device 14 may be a variety of devices as required, and a specific example thereof is a programmable logic controller (PLC).

The user terminal 11 may be various types of computer devices capable of communicating via the IP network 12, such as a personal computer such as a desktop computer or a notebook computer, as well as a mobile terminal such as a smart phone or a tablet computer.

The user terminal 11 and the HMI system 13 are connected to each other via an IP (Internet Protocol) network. The HMI system 13 and the control target device 14 can communicate with each other through various communication methods as required, and they are connected to each other through a serial communication method such as RS-485 in the industrial field.

The operator may operate the control target device 14 via the HMI system 13 in the field or may operate the control target device 14 at a remote location using the user terminal 11. [

Referring to FIG. 2, a process in which the user terminal 11, the HMI system 13, and the control target device 14 operate in cooperation with each other will be described.

A remote control program 11-1 is installed in the user terminal 11, and the remote control program is a computer program used for controlling the control target device 14.

The remote control program 11-1 can be configured to perform as many functions as necessary. A user interface function for allowing an operator to input various commands for controlling or monitoring the control target device 14 or inquiring results thereof, and a function for communicating with the HMI system 13, for example.

In particular, the remote control program 11-1 is provided with an IP address and a port number for connecting to the server program 13-1 of the HMI system 13 for communicating with the HMI system 13 via the IP network 12, Is set.

The server program 13-1 installed in the HMI system 13 can be accessed through a unique IP address and a port number and can be accessed via the IP network 12 by the remote control program 11-1 of the user terminal 11 To communicate with each other.

The local control program 13-2 installed in the HMI system 13 communicates with the control target device 14 and controls the control target device 14-2 in accordance with the control data received from the user terminal 11 via the server program 13-1. Transmits the control data to the device 14, and transfers the control result data received from the control target device 14 to the server program 13-1.

Although not specifically shown, the HMI system 13 may be provided with a program that performs various functions as needed. For example, the HMI system 13 is also provided with a user interface for allowing an operator to input various commands for controlling or monitoring the control target device 14 and inquiring the results thereof.

Generally, a control target device such as a PLC in the industrial field is connected to the HMI system 13 through a serial communication method.

The operator can control the control target device 14 using the user interface provided by the HMI system 13 in the field or use the user interface provided by the user terminal 11 to control the control target device 14 Control.

It goes without saying that the user interface provided by the HMI system 13 or the user terminal 11 may be variously configured according to various conditions such as the type of the control target device, the type of the control command, and the type of the monitoring information.

Particularly, the remote control program 11-1 executed in the user terminal 11 has the same user interface environment as that of controlling the control target device 14 through the serial communication like the user interface provided by the HMI system 13 .

Thus, even when the control target device 14 is operated through the user terminal 11, the operator is allowed to interact with the environment similar to the case where the HMI system 13 is used, so that he can work more conveniently.

However, since the user terminal 11 and the control target device 14 are not directly connected, the remote control program 11-1, when an operator inputs a control command, communicates with the control target device via the serial communication And communicates with the HMI system 13 using the corresponding IP address and port number.

That is, from the standpoint of the operator, it can be understood that there exists a virtual serial communication port connected to the control target device 14 in the user terminal 11. [

3, the process of controlling the control target device 14 through the remote terminal 11 according to the present invention will be described in detail.

First, the remote control program 11-1 of the user terminal 11 is executed (S31-1).

The remote control program 11-1 receives the control command from the operator (S31-2), and transmits the control data to the IP address and the port number corresponding to the server program 13-1 of the HMI system 13 ( S32).

The IP address and the port number of the server program 13-1 of the HMI system 13 may be set in advance, or may be inputted by the operator if it is not set in advance or is to be selected by the operator.

The server program 13-1 of the HMI system 13 receives the control data transmitted from the remote control program 11-1 via the IP network 12 at step S33-1, The local control program 13-2 transfers the control data received from the user terminal 11 to the control subject device 14 (S33-2, S34).

The control subject device 14 receives the control data from the HMI system 13 (S35-1), processes the control data (S35-2), and transmits data relating to the control result to the HMI system 13 (S35-3, S36).

The local control program 13-2 of the HMI system 13 receives the control result data from the control target device 14 in step S37-1 and the server program 13-1 transmits And transmits the control result data to the terminal 11 (S37-2, S37-3).

The remote control program 11-1 of the user terminal 11 receives the control result data from the HMI system 13 and performs appropriate processing such as displaying it to the operator through the user interface screen (S38).

In this manner, the operator can operate the control target device 14 at a remote location using various user terminals 11 without obstructing the operation or the physical connection between the HMI system 13 and the control target device 14 do.

It is to be understood that the present invention is not limited to the above-described embodiment, and that various changes and modifications may be made by those skilled in the art without departing from the technical spirit of the present invention. to be.

11: User terminal 11-1: Remote control program
12: IP network 13: HMI system
13-1: Server program 13-2: Local control program
14: Control target device

Claims (4)

A step in which a remote control program executed in a user terminal transmits control data for a control target device with a specific IP address and port number;
A server program executed in the HMI system, the server program being connected to the IP network through the specific IP address and port number; receiving control data transmitted by the user terminal;
A local control program executed in the HMI system communicates with the control target device according to control data received from the user terminal to control the control target device and receive control result data;
Transmitting the control result data received from the control target device to the remote control program of the user terminal by the server program; And
And the remote control program receiving and processing the control result data from the server program. The method according to claim 1,
Wherein the control target device includes at least a PLC (Programmable Logic Controller). The method according to claim 1,
Wherein the HMI system and the control target device are connected to each other through serial communication. The method of claim 3,
The remote control program executed by the user terminal provides a user interface environment for controlling the control target device through serial communication. When an operator inputs a control command for the control target device, And the control data is transmitted to the specific IP address and port number instead of communicating with the HMI system.
KR1020130028378A 2013-03-18 2013-03-18 Method for Device Control with Human Machine Interface System KR20140114085A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
KR1020130028378A KR20140114085A (en) 2013-03-18 2013-03-18 Method for Device Control with Human Machine Interface System

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110869183A (en) * 2017-07-21 2020-03-06 赫斯基注塑系统有限公司 Programming a protection device for a molding machine
KR20210112010A (en) 2020-03-04 2021-09-14 엘에스일렉트릭(주) Method for Configuring of Adaptive Frame in Human Machine Interface System

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110869183A (en) * 2017-07-21 2020-03-06 赫斯基注塑系统有限公司 Programming a protection device for a molding machine
KR20210112010A (en) 2020-03-04 2021-09-14 엘에스일렉트릭(주) Method for Configuring of Adaptive Frame in Human Machine Interface System

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