Method and system for increasing robustness of periodic communication

Abstract

The invention belongs to the technical field of data communication, and particularly relates to a method and system for increasing the robustness of periodic communication, and the method for increasing the robustness of periodic communication comprises the steps: initially configuring a communication parameter value, and starting communication; carrying out the error detection and state switchingon communication; and updating the application interface according to the communication state after detection and state switching, so that the environmental adaptability of communication is improved,accidental interference is greatly resisted, the system robustness is enhanced, and the fault tolerance of communication error detection and state switching is improved.

Description

technical field [0001] The invention belongs to the technical field of data communication, and in particular relates to a method and system for increasing the robustness of periodic communication. Background technique [0002] Process data transmission in industrial fieldbus communication is characterized by periodic device data communication, in which there are communication master and communication slave roles, and the communication process is controlled by the communication master. Such as figure 1 As shown, the communication device software program often includes a communication module and an application module, which work together to realize device functions. [0003] Fieldbus communication lines are often susceptible to external interference, resulting in abnormal communication. When the communication module detects that the communication is unavailable, the application module will lose the functions related to the communication data (depending on the role of the comm...

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Problems solved by technology

[0003] Fieldbus communication lines are often susceptible to external interference, resulting in abnormal communication. When the communication module detects that the communication is unavailable, the application module will lose the functions related to the communication data (depending on the role of the communication data in the application module, the impact on the device Functions have varying degrees of impact, and may even lead to the loss of all functions of the device)

However, the external interference on the fieldbus communication line may be short-term, and the communication unavailability may also be short-lived. However, when the traditional communication module detects that the communication is unavailable, it may cause the loss of all functions of the device.

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