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Method and system for realizing welding network communication through three-layer switch

A technology of network communication and switch, which is applied in the field of automatic control of automobile welding production line, can solve problems such as inability to realize PLC-PLC communication, complicated lines, redundant ring network, etc., and achieve the effect of reducing hardware network cable links

Pending Publication Date: 2022-07-22
CHINA FIRST AUTOMOBILE +1
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  • Claims
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Problems solved by technology

[0007] The present invention solves the problem that the communication between the existing welding process equipment and the communication with the upper MES system often requires a large number of network cables to link, the lines are complicated, and the communication between PLC and PLC cannot be realized, and the ring network network is redundant. the function of the problem

Method used

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  • Method and system for realizing welding network communication through three-layer switch
  • Method and system for realizing welding network communication through three-layer switch
  • Method and system for realizing welding network communication through three-layer switch

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Effect test

Embodiment approach

[0073] The first step, the two-layer switch realizes the communication of the following process equipment of the PLC, including the following sub-steps:

[0074] (1) Hardware design: such as figure 1 As shown in the figure, in the early stage of the EPLAN drawing software, the hardware layout of the equipment that requires communication functions is planned and perfected, and the specific network topology is designed.

[0075] like figure 2 As shown, in this link, it is necessary to determine the communication connection sequence of the hardware of each device, and to assign a unique IP address to each device that needs to communicate, and to make statistics in the form of a table.

[0076] (2) Software configuration: configure the equipment through Siemens Botu software (PLC programming software). Set the hardware configuration and assign device names to all hardware through the two-layer switch.

[0077] like image 3 As shown, through this step, all the communication e...

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Abstract

The invention provides a method and system for realizing welding network communication through a three-layer switch, belongs to the technical field of automatic control of an automobile welding production line, and solves the problems that the communication of existing welding process equipment and the communication mode between the existing welding process equipment and an upper-layer MES (Manufacturing Execution System) often need a large number of network cables for linking, the circuit is complex, and the communication efficiency is high. And communication between the PLCs cannot be realized, and the network redundancy function of the looped network cannot be realized. The method comprises the following steps: step S1, enabling two layers of switches to realize communication of the following process equipment of the PLC system; s2, mutual communication of a TCP / IP (Transmission Control Protocol / Internet Protocol) protocol can be realized between the PLC systems through dynamic routing; s3, configuring a VRRP (Virtual Router Redundancy Protocol) to ensure the equipment redundancy of core communication; and S4, the welding workshop equipment communicates with the upper-layer MES. The invention relates to the technical field of automatic control of automobile welding production lines.

Description

technical field [0001] The invention relates to the technical field of automatic control of automobile welding production lines, in particular to a method and a system for realizing welding network communication by a three-layer switch. Background technique [0002] The existing welding process equipment communicates with the upper MES system through the upper-layer server and each PLC system through the second-layer switch, so the communication method often requires a large number of network cables to link, the lines are complex, and the PLC and PLC cannot be realized. communication, and the function of ring network redundancy. [0003] Therefore, the defects in the communication between the welding process equipment and the upper MES system are: [0004] 1) This communication method often requires a large number of network cables to link, and the lines are complex. [0005] 2) The communication between the PLC system and the PLC system and the function of ring network re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46
CPCH04L12/4604H04L12/4641H04L2012/4629Y02P90/02
Inventor 曲云龙隋旭齐石刘飞飞王晓峰孙鹤冲
Owner CHINA FIRST AUTOMOBILE
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