Communication method, device, equipment, system and storage medium

Abstract

The invention discloses a communication method, device, equipment, system and a storage medium. The communication method comprises the following steps: receiving a first request frame sent by a first master station; according to a pre-stored mapping relation, matching a first target storage area corresponding to the reading instruction in the first request frame in the network bridge; reading first data from a first target storage area in the network bridge based on the reading instruction; wherein the first data refers to data written in the network bridge by the second master station through the second slave station; and forwarding the first data to the first master station. On the basis, the first slave station reads the data written by the second master station through the second slave station in the set storage area of the network bridge, and then the first slave station sends the data to the corresponding first master station, so that communication interaction between the master stations without using the network is realized.

Description

technical field

[0001] The present application relates to the technical field of communication, and in particular to a communication method, device, device, system and storage medium. Background technique

[0002] With the development needs of the industrial control industry, the application of industrial networks is becoming more and more complex, and the requirements are getting higher and higher, including high real-time, low jitter, and multi-controller cooperative communication. EtherCAT is a high-speed real-time industrial bus based on Ethernet. It is widely used in industrial control networks. At the same time, the communication topology of EtherCAT adopts the master-slave mode. The station connects several slave stations in series through network cables. However, the communication between master stations in different networks cannot be realized, so that the collaboration between multiple controllers is limited. Contents of the invention

[0003] The embodiments o...

Examples

Embodiment Construction

[0049] It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0050] The main solution of the embodiment of the present application is: receive the first request frame sent by the first master station; match the first target storage corresponding to the read instruction in the first request frame in the network bridge according to the pre-stored mapping relationship area; read first data from the first target storage area in the network bridge based on the read instruction; wherein, the first data refers to the second master station via the second slave station on the network The data written in the bridge; forwarding the first data to the first master station.

[0051] Since the communication topology of EtherCAT adopts the master-slave mode, that is, in a real-time Ethernet network, there is only one master station, and the master station connects several slave stations in...

technical field

[0001] The present application relates to the technical field of communication, and in particular to a communication method, device, device, system and storage medium. Background technique

[0002] With the development needs of the industrial control industry, the application of industrial networks is becoming more and more complex, and the requirements are getting higher and higher, including high real-time, low jitter, and multi-controller cooperative communication. EtherCAT is a high-speed real-time industrial bus based on Ethernet. It is widely used in industrial control networks. At the same time, the communication topology of EtherCAT adopts the master-slave mode. The station connects several slave stations in series through network cables. However, the communication between master stations in different networks cannot be realized, so that the collaboration between multiple controllers is limited. Contents of the invention

[0003] The embodiments o...

Examples

Embodiment Construction

[0049] It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0050] The main solution of the embodiment of the present application is: receive the first request frame sent by the first master station; match the first target storage corresponding to the read instruction in the first request frame in the network bridge according to the pre-stored mapping relationship area; read first data from the first target storage area in the network bridge based on the read instruction; wherein, the first data refers to the second master station via the second slave station on the network The data written in the bridge; forwarding the first data to the first master station.

[0051] Since the communication topology of EtherCAT adopts the master-slave mode, that is, in a real-time Ethernet network, there is only one master station, and the master station connects several slave stations in...

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