A device based on VPN technology and a method and system for remote maintenance PLC

A technology for remote maintenance and equipment, applied in the field of information, to solve pain points and reduce technical requirements

Active Publication Date: 2022-05-17
北京航天智造科技发展有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] With VPN technology, when the PLC needs to be maintained by technicians such as configuration changes or failures, a virtual private network can be quickly built between the PLC and technicians to facilitate quick troubleshooting for technicians. Therefore, there is an urgent need for a simple and fast Efficient virtual private network equipment to solve the pain point that PLC is difficult to maintain quickly

Method used

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  • A device based on VPN technology and a method and system for remote maintenance PLC
  • A device based on VPN technology and a method and system for remote maintenance PLC
  • A device based on VPN technology and a method and system for remote maintenance PLC

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Embodiment Construction

[0037] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below through specific embodiments and accompanying drawings.

[0038] The invention provides a device based on VPN technology, which is plug-and-play and provides multiple interfaces for accessing the Ethernet. The device is used as an OPENVPN client to connect to an OPENVPN server.

[0039] The device has a WAN interface (wide area network interface), which supports DHCP or static IP mode to connect the device to Ethernet; a LAN interface (local area network interface), which is directly connected to the PLC product or connected to the LAN switch connected to the PLC product, It can directly access PLC products; a wireless communication module supports the expansion of 2 / 3 / 4G wireless modules. When the on-site LAN does not have the ability to access Ethernet, the device can be connected to Ethernet through a...

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PUM

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Abstract

The invention relates to a device based on VPN technology and a method and system for remotely maintaining PLC. The device based on VPN technology has the characteristics of rapid deployment, plug and play, and only needs the on-site personnel to inform the technicians of the device ID number and the IP address of the PLC, and the technicians can maintain the PLC remotely with the remote client software; the device No configuration is required. If the on-site LAN does not have the ability to access the Ethernet, the device can be connected to the operator's network to connect to the VPN server and establish a virtual tunnel. The present invention does not need to change the original network environment, can realize seamless access, is efficient and fast; can automatically connect without complex configuration, can reduce the technical requirements for on-site personnel, and is simple and convenient; through this scheme, technicians can realize fast Troubleshoot problems to meet user needs and solve user pain points.

Description

technical field [0001] The invention belongs to the field of information technology, and in particular relates to a device based on VPN technology and a method and system for remotely maintaining a PLC using the device. Background technique [0002] PLC (Programmable Logic Controller, Programmable Logic Controller) is a digital operation controller with a microprocessor for automatic control, which can load control instructions into memory at any time for storage and execution. The programmable controller is composed of functional units such as CPU, instruction and data memory, input / output interface, power supply, and digital-to-analog conversion. The programmable logic controller used in the industry is already quite or close to the host of a compact computer, and its advantages in scalability and reliability make it widely used in various current industrial control fields. [0003] Because of its high programming reliability, strong anti-interference ability, flexible co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/05
CPCG05B19/054G05B2219/15006Y02P90/02
Inventor 李振超马凯蒂石伟庞鑫宇刘琪郑强程仕通
Owner 北京航天智造科技发展有限公司
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