Exploiting Modbus protocol in wired and wireless multilevel communication architecture

Giuliano B.M. Guarese, Felipe G. Sieben, Thais Webber, Marcos R. Dillenburg, César Marcon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

27 Citations (Scopus)

Abstract

This paper proposes an architectural improvement for the Modbus RTU protocol to integrate equipments in industrial automation networks, employing hybrid communication with wired Modbus RTU and wireless IEEE 802.15.4. These environments have different electromagnetic interferences, requiring protocols with noise immunity to varied equipments such as motors and generators. Modbus RTU is a simple and robust master-slave protocol that accepts the integration of a master with up to 247 slaves into a bus topology. In addition, the IEEE 802.15.4 protocol emerged recently as a wireless solution to industrial environments since it allows electromagnetic spectrum evaluation, and the choice of avoiding communications in noise frequencies and decreasing the error rate between packets. The proposed hybrid communication protocol increases control and topological limits imposed by Modbus RTU by enabling a wired/wireless tree-bus topology and master multiplexing. Moreover, the academy-industry cooperation resulted in features implemented in a gateway, whose efficiency is evaluated with practical experiments in different topologies.

Original languageEnglish
Title of host publicationProceedings - 2012 Brazilian Symposium on Computing System Engineering, SBESC 2012
Pages13-18
Number of pages6
DOIs
Publication statusPublished - 2012
Event2012 2nd Brazilian Symposium on Computing System Engineering, SBESC 2012 - Natal, Brazil
Duration: 5 Sept 20127 Sept 2012

Publication series

NameBrazilian Symposium on Computing System Engineering, SBESC
ISSN (Print)2324-7886
ISSN (Electronic)2324-7894

Conference

Conference2012 2nd Brazilian Symposium on Computing System Engineering, SBESC 2012
Country/TerritoryBrazil
CityNatal
Period5/09/127/09/12

Keywords

  • IEEE 802.15.4
  • Modbus master multiplexing
  • Modbus RTU
  • Wired/Wireless hybrid network

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