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Method and system for accessing remote programmable logic control equipment using dynamic domain name

A technology of remote control system and dynamic domain name, applied in transmission system, electrical components, data exchange through path configuration, etc., can solve problems such as PLC device intrusion, users cannot control PLC devices, users cannot accurately point to network addresses, etc.

Active Publication Date: 2018-08-10
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, according to the specifications under the Internet Communication Protocol (Transmission Control Protocol / Internet Protocol, TCP / IP), if a dynamic Internet Protocol address (Internet Protocol Address, IP address) is used, each PLC device connected through the network will generate a different IP address, but the user does not know the IP address change of the PLC device on the remote computer, so that the user cannot accurately point to the network address of the PLC device to be connected; second, the PLC device connected by the user through the network does not have such things as a firewall, anti-virus, etc. The software may be encrypted with a password to protect its security. That is to say, the PLC device is easy to be invaded by other users using the network to control its operation rights; thirdly, the user must use a computer to connect to the PLC device through the network, so In an environment without a computer, the user will not be able to control the PLC device
The above three points will limit the applicability of the related methods of using the network to connect the PLC equipment to operate the household electrical appliances

Method used

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  • Method and system for accessing remote programmable logic control equipment using dynamic domain name
  • Method and system for accessing remote programmable logic control equipment using dynamic domain name

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Embodiment Construction

[0025] In order to make the present invention more comprehensible, the remote control system according to the present invention will be described in detail below with reference to the attached drawings, but the provided embodiments are not intended to limit the scope of the present invention.

[0026] figure 1 It is a schematic diagram of a network architecture 100 of a remote control system according to an embodiment of the present invention. figure 1 Among them, the network architecture 100 of the remote control system includes a router 103, which is connected to the Internet 102, to generate a corresponding Internet protocol address (internet protocol address, IP address); a PLC device 104, one end of which is connected to the router 103 and the other end Connected to the electrical equipment 105; the dynamic domain name server 101 is connected to the Internet 102, and the server name, connection address and port number are set to the router 103 so that the router 103 is po...

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Abstract

The present invention relates to a method for using a dynamic domain name to access a remote programmable logic control device and its control system. The method includes connecting the programmable logic control device to a router; Setting to the router to link the router to the dynamic domain name server; linking the electronic device to the router according to the link URL of the dynamic domain name server; and the remote operation software of the electronic device controlling the programmable logic control device through the router. In this way, the electronic device can successfully access the control device without knowing the IP address of the control device in advance.

Description

technical field [0001] The invention relates to a method for using a dynamic domain name to access a remote programmable logic control device, in particular to a method for using a wired network or a wireless network to access a remote programmable logic control device. Background technique [0002] The Internet (Internet) is a tool that is widely used in network communication and data transmission, especially the application of Local Area Network (LAN) and Wide Area Network (Wide Area Network, WAN), because the Internet has effective Taking advantage of shared resources, easy reconfiguration and maintenance, compatibility between multiple manufacturers and systems, and low cost, it can reach millions of bits per second (Mb / s) or even one billion bits per second (Gb / s) transmission speed, so it is very suitable for remote operation between computers or remote operation between computers and a programmable logic control device (Programmable Logic Controller, PLC device) that...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L12/28H04L29/08
CPCH04L61/5076
Inventor 陆进军
Owner SIEMENS AG