• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    PURPOSE: A technique for controlling a PLC(Programmable Logic Controller) using a web browser in a remote place is provided to control a PLC in a remote place through the Internet and to control a PLC without installing software using a web browser. CONSTITUTION: A server PC is mounted for controlling a PLC in a remote place. The PLC is connected to the server PC, and the server PC is connected to the Internet. A user connects to the server PC using a personal computer through the Internet and transmits a PLC control signal to the server PC. The server PC receives the PLC control signal and transmits the PLC control signal to the PLC. In addition, the server PC receives a response signal being transmitted in the PLC and transmits the response signal to the user PC. Thus, the server PC is used for connecting the user PC to the PLC. The above operations are executed through a web browser.
    公开号:KR20030049994A
    申请号:KR1020010080362
    申请日:2001-12-18
    公开日:2003-06-25
    发明作者:이강현
    申请人:이강현；
    IPC主号:
    专利说明:

    PLC remote control technology using web browser {The PLC Remote Controlling On Web Browser}
    [3] The present invention relates to a remote control technology of a programmable logic controller (PLC), and to a method for remotely controlling a PLC used for factory automation through a web browser.
    [4] Conventionally, the length of cable for controlling PLC is limited to 10m, so remote control is impossible and special software is needed to control.
    [5] 1
    [6] The present invention aims to solve the above problems and to enable remote control via the Internet, and also to enable PLC control without installing specific software using a web browser.
    [1] 1 is a block diagram showing a conventional PLC control method
    [2] 2 is a block diagram showing an improved PLC control method
    [7] In the remote control technology of a PLC according to the present invention, a server PC is required to remotely control a remote PLC. The PLC is connected to the Server PC and the Server PC is connected to the Internet. When a user connects to a server PC over the Internet using a personal PC and sends a PLC control signal to the server PC, the server PC receives the PLC control signal and transmits it to the PLC, and the server PC receives the response signal from the PLC. It will be delivered to your PC. In other words, Server PC is to play the role of third party for connection between user PC and PLC. All of this is done through a web browser using the Internet.
    [8] 2
    [9] As described above, according to the present invention, anytime, anywhere can monitor and control the remote PLC via the Internet, it is convenient because there is no need to install a specific software.
    权利要求:
    Claims (1)
    [1" claim-type="Currently amended] How to control PLC through web browser, How to control PLC remotely using web server
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2001-12-18|Application filed by 이강현
    2001-12-18|Priority to KR1020010080362A
    2003-06-25|Publication of KR20030049994A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1020010080362A|KR20030049994A|2001-12-18|2001-12-18|The PLC Remote Controlling On Web Browser|
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