A Method to Solve the Bottleneck of Serial Port Communication Based on Modbus

A serial port communication and serial port technology, which is applied to solve the bottleneck of MODBUS-based serial port communication, can solve problems such as low baud rate, impact on industrial production, limit communication bandwidth and speed, etc., and achieve the effect of solving communication bottleneck

Active Publication Date: 2015-12-16
SHENZHEN ARTEL TECH
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Problems solved by technology

[0002] The MODBUS communication protocol is a commonly used protocol in distributed industrial control systems (DCS). This protocol is a pure software protocol. RS485 connection is usually used in application. In order to ensure reliability in industrial applications, the baud rate when using RS485 connection is usually set Therefore, the bandwidth and speed of communication are limited. In this way, once there are many remote measurement and control terminals (RTUs) connected, the bottleneck of communication will be revealed immediately, which will affect the real-time and reliability of communication, and cause industrial production to be affected. Serious impact

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  • A Method to Solve the Bottleneck of Serial Port Communication Based on Modbus
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  • A Method to Solve the Bottleneck of Serial Port Communication Based on Modbus

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[0032] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments:

[0033] The hardware basis of the method for applying the solution of the serial communication bottleneck based on MODBUS of the present invention is: as figure 1 As shown, an interface conversion system is set up between the remote measurement and control terminal and the upper computer that establishes the configuration system, and the measurement data of the remote measurement and control terminal is collected through the interface conversion system to simulate the remote measurement and control terminal. In order to realize the virtual remote measurement and control terminal using serial port communication into a remote measurement and control terminal using Ethernet communication, the remote measurement and control terminal supports MODB...

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Abstract

The invention discloses a method for solving serial port communication bottleneck based on MODBUS. The method comprises the following steps: arranging an interface conversion system between a remote measuring and controlling terminal and a configuring system; acquiring the measured data of the remote measuring and controlling terminal by the interface conversion system to simulate the configuring statuses of the remote measuring and controlling system and an upper computer, so as to read the measured data from the interface conversion system, thereby simulating the remote measuring and controlling terminal adopting the serial port communication to be the remote measuring and controlling terminal adopting Ethernet communication. Due to the technical scheme of the invention, the communication bottleneck is solved without changing the communication protocol, and no compatibility problem exists in an application process.

Description

technical field [0001] The invention relates to the field of industrial communication, and more specifically relates to a method for solving the bottleneck of MODBUS-based serial port communication. Background technique [0002] The MODBUS communication protocol is a commonly used protocol in distributed industrial control systems (DCS). This protocol is a pure software protocol. RS485 connection is usually used in application. In order to ensure reliability in industrial applications, the baud rate when using RS485 connection is usually set Therefore, the bandwidth and speed of communication are limited. In this way, once there are many remote measurement and control terminals (RTUs) connected, the bottleneck of communication will be revealed immediately, which will affect the real-time and reliability of communication, and cause industrial production to be affected. Serious impact. Contents of the invention [0003] The purpose of the present invention is to solve the a...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08
Inventor 郭家楼陈超
Owner SHENZHEN ARTEL TECH
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