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Development and implementation of a modbus based wireless air protocol

Thesis (MScEng)--University of Stellenbosch, 2004.

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Main Author: Ramalata, Mulalo Phillip
Other Authors: Wolhuter, R.
Format: Thesis
Language:en_ZA
Published: Stellenbosch : Stellenbosch University 2012
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access_status_str Open Access
author Ramalata, Mulalo Phillip
author2 Wolhuter, R.
author_browse Ramalata, Mulalo Phillip
Wolhuter, R.
author_facet Wolhuter, R.
Ramalata, Mulalo Phillip
author_sort Ramalata, Mulalo Phillip
collection Thesis
dc_rights_str_mv Stellenbosch University
description Thesis (MScEng)--University of Stellenbosch, 2004.
format Thesis
id oai:scholar.sun.ac.za:10019.1/49910
institution Stellenbosch University (South Africa)
language en_ZA
last_indexed 2026-06-10T12:42:35.472Z
license_str Other — see source repository
provenance_str_mv Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository
publishDate 2012
publishDateRange 2012
publishDateSort 2012
publisher Stellenbosch : Stellenbosch University
publisherStr Stellenbosch : Stellenbosch University
record_format dspace
source_str SUNScholar — Stellenbosch University Repository
spelling oai:scholar.sun.ac.za:10019.1/49910 Development and implementation of a modbus based wireless air protocol Ramalata, Mulalo Phillip Wolhuter, R. Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Wireless communication systems Dissertations -- Electronic engineering Theses -- Electronic engineering Thesis (MScEng)--University of Stellenbosch, 2004. ENGLISH ABSTRACT: The recent performance improvements of wireless communication systems are presenting possibilites for the use of wireless networks for industrial applications, which typically impose severe restrictions in terms of response time and flexibility. Traditionally most of the industrial protocols employ cable connections, which have limitations in terms of flexibility and development oportunities. The industrial protocol used for this project, is the Modbus protocol. This protocol is developed and implemented on a wireless environment by using data radio modems. The Modbus protocol is a master/slave protocol which provides an industry standard for industrial data transfer. A Modbus driver is designed for radio networks, so that it can function with different PLCs and SCADA packages, supporting Modbus protocol. This enables control and monitoring to be excercised over a long distance, and enables control equipment to be placed as required and not with particular wiring restrictions. AFRIKAANSE OPSOMMING: Die onlangse verbetering in radiokommunikasiestelsels bied moontlikhede vir die gebruik van radionetwerke vir industriële toepassings, wat gewoonlik streng beperkings plaas in terme van responstyd en buigbaarheid. Tradisioneel is meeste van die industriële protokolle kabelgebaseer, wat redelik onaanpasbaar is. Die Modbus protokol is as basis in hierdie projek gebruik. Dit is 'n meester/slaaf industriestandaard, wat hier aangepas is vir toepassings met radiomodems. Die Modbus drywer is ontwerp om funksioneel te wees met 'n verskeidenheid van PLC's en SCADA pakette, wat die Modbus protokolondersteun. Dit stel beheer- en meetaksies in staat oor lang afstande en laat relatief vrye plasing toe van toerusting sonder bedradingsbeperkings. 2012-08-27T11:33:09Z 2012-08-27T11:33:09Z 2004-12 Thesis http://hdl.handle.net/10019.1/49910 en_ZA Stellenbosch University 78 p. : ill. application/pdf Stellenbosch : Stellenbosch University
spellingShingle Wireless communication systems
Dissertations -- Electronic engineering
Theses -- Electronic engineering
Ramalata, Mulalo Phillip
Development and implementation of a modbus based wireless air protocol
title Development and implementation of a modbus based wireless air protocol
title_full Development and implementation of a modbus based wireless air protocol
title_fullStr Development and implementation of a modbus based wireless air protocol
title_full_unstemmed Development and implementation of a modbus based wireless air protocol
title_short Development and implementation of a modbus based wireless air protocol
title_sort development and implementation of a modbus based wireless air protocol
topic Wireless communication systems
Dissertations -- Electronic engineering
Theses -- Electronic engineering
url http://hdl.handle.net/10019.1/49910
work_keys_str_mv AT ramalatamulalophillip developmentandimplementationofamodbusbasedwirelessairprotocol