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Communication between PLC and Chip Microcontrollers based on RS485 Interface and Modbus Protocol

Songfeng Liang

Open publisher page 3 citations

Abstract

This paper includes the design and realization of multi-computer communication based on RS485 bus and Modbus Protocol.This paper introduces Characteristics of communication between PLC of Emerson and MCU and gives details explanation of hardware configuration and program design.The design project in paper has been applied successfully in the combination control of the driving motor and the electronic throttle of engine in hybrid electric vehicle.

About this research paper

What this paper is about

This paper includes the design and realization of multi-computer communication based on RS485 bus and Modbus Protocol.This paper introduces Characteristics of communication between PLC of Emerson and MCU and gives details explanation of hardware configuration and program design.The design project in paper has been applied successfully in the combination control of the driving motor and the electronic throttle of engine in hybrid electric vehicle.

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OpenAlex reports 3 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

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Available abstract

This paper includes the design and realization of multi-computer communication based on RS485 bus and Modbus Protocol.This paper introduces Characteristics of communication between PLC of Emerson and MCU and gives details explanation of hardware configuration and program design.The design project in paper has been applied successfully in the combination control of the driving motor and the electronic throttle of engine in hybrid electric vehicle.

Key concepts: Modbus, Microcontroller, Computer science, Embedded system, Realization (probability), Protocol (science), Communications protocol, Interface (matter)

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