Communication control method and device based on asynchronous transmission protocol and electronic equipment

A control method and asynchronous transmission technology, applied in the field of communication control, can solve the problems of low efficiency of communication methods, easy to reduce the reliability of communication systems, etc.

Inactive Publication Date: 2020-07-31
北京龙鼎源科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a communication control method, device, and electronic equipment based on an asynchronous transmission protocol, so as to at leas...

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  • Communication control method and device based on asynchronous transmission protocol and electronic equipment
  • Communication control method and device based on asynchronous transmission protocol and electronic equipment
  • Communication control method and device based on asynchronous transmission protocol and electronic equipment

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Embodiment Construction

[0026] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a communication control method and device based on an asynchronous transmission protocol and electronic equipment. The communication control method comprises the steps: when afirst polling strategy is received, determining an input control instruction, wherein the input control instruction carries a request frame identifier of a controller and a first module identifier ofeach input module; broadcasting a target request message to all the input modules based on the request frame identifier of the controller and the first module identifier of each input module; receiving a response message of each input module, wherein the response message is a message replied by the input module based on the target request message; and determining a polling result based on each response message. According to the invention, the technical problems that the communication mode of an automatic product is low in efficiency and the reliability of a communication system is easy to reduce in the prior art are solved.

Description

technical field [0001] The present invention relates to the technical field of communication control, in particular, to a communication control method and device based on an asynchronous transmission protocol, and electronic equipment. Background technique [0002] In related technologies, in process automation products, the polling of I / O modules is usually based on the RS-485 serial bus, and the interaction is conducted in a question-and-answer manner. figure 1 is an optional polling system topology diagram in the prior art, such as figure 1 As shown, the controller is the master, each I / O module is the slave, and the controller polls the I / O modules one by one. figure 2 It is a schematic diagram of an optional polling communication control method in the prior art, such as figure 2 As shown, the main controller interacts frequently with each I / O module. Every time the main controller polls an I / O module, it needs to send a request and wait until it receives a response ...

Claims

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Application Information

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IPC IPC(8): G06F13/22
CPCG06F13/22
Inventor 王东
Owner 北京龙鼎源科技股份有限公司
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