Networking method, electronic equipment and storage medium

Abstract

The invention discloses a networking method, electronic equipment and a storage medium, and relates to the technical field of network communication. The method disclosed in an embodiment of the application comprises the following steps: sending a communication frame; determining the number of networking devices according to the feedback information of the communication frame; numbering the networking devices according to the physical connection sequence. Automatic networking is achieved through serial port communication, and the corresponding relation between transmission data and networking equipment can be accurately obtained; on the premise that the physical connection sequence of all networking devices is clear, the physical sources of digital quantity and analog quantity signals sentby the networking devices can be clearly known, and accurate one-to-one and one-to-many data interaction is achieved. Under the framework of CAN bus communication, no absolute difference between the host and the slaves exists between networking devices, and the whole communication process of the CAN bus is not limited by the conditions of master-slave relation, one-to-one correspondence and the like.

Description

technical field [0001] The embodiments of the present application relate to the technical field of network communication, and in particular, relate to a networking method, electronic equipment, and a storage medium. Background technique [0002] In the industrial field, the controller area network (Controller Area Network, CAN) bus is widely used because of its extremely high reliability. As a bus-type communication structure, all devices on the CAN bus can receive data sent by other devices, and multiple devices can initiate communication independently without distinguishing the communication mode of the master and slave. [0003] However, for the application scenarios where the equipment is connected in a chain and the physical location of the equipment is the necessary information of the system, such as equipment including a programmable logic controller (Programmable Logic Controller, PLC) and its expansion modules, if only relying on the characteristics of the CAN bus i...

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Problems solved by technology

[0003] However, for the application scenarios where the equipment is connected in a chain and the physical location of the equipment is the necessary information of the system, such as equipment including Programmable Logic Controller (Programmable Logic Controller, PLC) and its expansion modules, if only relying on the characteristics of the CAN bus itself for automatic networking , due to the lack of information to determine the physical location of the device, the user will not be able to determine the sequence number assigned to the nth expansion module device in the physical order after the program network is completed, and the configuration parameters, physical input and output of each expansion module The sources and destinations of the signals are different, so that the user cannot accurately set the configuration parameters of the target module, and cannot know which specific digital quantity on the program corresponds to the physical input signal on a certain module, which causes inconvenience in the use of the device

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