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IEC-104 and MODBUS protocol conversion
Syskov, Mykyta ; Grenar, David (referee) ; Slavíček, Karel (advisor)
IEC 104 and ModbusRTU communication protocols are used for control, measurement and data collection in remote terminal units (RTUs) primarily in industrial automation, especially in the power industry. This bachelor’s thesis deals with methods of data conversion between these protocols. The theoretical part contains introductions to these protocols, followed by a description of proposed methods for mutual mapping of the items of individual protocols. The result of the work are scripts that are written in the Python language. These scripts implement the described designs. The operation algorithms are documented in detail in the practical part. Finally, using the UniPi G110 device and the xS51 extension from UniPi Technology, a demonstration of the functionality of this software solution is presented.
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I/O Peripheries for Modbus/TCP server
Mikula, Matej ; Štohl, Radek (referee) ; Macho, Tomáš (advisor)
The thesis focuses on the development of input-output peripherals for a Modbus TCP server. Its goal is to create a functional model of a device with analog and digital inputs and outputs. The device is capable of communicating with the PLC Allen-Bradley Logix series. It can report the state of its inputs, and it is possible to set the value of its outputs. The functionality of the proposed device is verified by creating a simple application for the PLC.
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Automated system for domestic chicken farming
Kejík, Pavel ; Šimek, Václav (referee) ; Mrázek, Vojtěch (advisor)
The aim of this thesis was to design and construct devices for automating chicken farming. The devices should be competitive in terms of both price and features compared to those available on the market. The described devices provide wireless connectivity, so they are considered IoT devices. An overview of available IoT protocols is provided in the thesis. Additionally, devices available on the market and their features, which are set as the minimum requirements for the design of the implemented devices, are mentioned. The practical implementation of these devices is divided into descriptions of the mechanical and electronic construction, as well as the software. Specific approaches to control are explained in detail. The devices were developed into fully functional prototypes. Prototype tests were conducted for several weeks in simulated conditions without the presence of chickens to avoid contamination.
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Honeypot for operational technology
Tydlačková, Julie ; Holasová, Eva (referee) ; Blažek, Petr (advisor)
This bachelor thesis discusses the challenges associated with the deploying a honeypot for operational technologies protocols. Specifically, it examines the current situation regarding the OPC UA protocol. Despite its proliferation, reliable implementations for the OPC UA honeypots still do not exist. To address this gap, a simple honeypot design was created and implemented. It was built on the honeynet project. The knowledge necessary for this implementation was gained from the analysis of existing honeypots and theoretical insights.
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Detailed analysis of the cybersecurity of photovoltaic systems
Turek, Adam ; Bohačík, Antonín (referee) ; Mikulášek, Michal (advisor)
Cílem diplomové práce je seznámení se s metodami útoků na fotovoltaické systémy a jejich komponenty. Dále analyzování jednotlivých typů fotovoltaických systémů, jednotlivých komponent a možných bezpečnostních nedostatků. Dále navržení a sestavení testovacího pracoviště umožnující sledování fotovoltaických prvku a síťového provozu s implementovaním několika kybernetických útoků. Práce popisuje teoretickou část fotovoltaických systémů a jejich komponent, kybernetickou bezpečnost a možné útoky. Krom toho také analýzu konkrétních zranitelností na fotovoltaické systémy, která byla provedena prostřednictvím veřejně známých databází jako je Vulners nebo Národní Databáze Zranitelností. Dále popis testovacího prostředí střídačů Solax a Solinteg, implementační nástroje a úspěšně provedenou síťovou, Modbus a kybernetickou analýzu na fotovoltaické střídače s odsimulováním útoků.
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Java Implementation of Profinet, Ethernet/IP and Modbus Protocols
Almáši, Marek ; Štůsek, Martin (referee) ; Zeman, Kryštof (advisor)
The aim of the work was to become familiar with the properties, structure and use of industrial protocols and their subsequent implementation. As part of the implementation, it was necessary to observe all the rules and structures of the modbus, profinet and ethernet/IP protocols themselves, as well as the protocols in which they are encapsulated within the OSI model. The implementation was done in java.
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Security verification tool for industrial and energy equipments
Sagindykova, Anel ; Kuchař, Karel (referee) ; Blažek, Petr (advisor)
Cílem této práce je analyzovat různé vyhledávače a vybrat ty nejvhodnější pro vytvoření nástroje k testování průmyslových a energetických zařízení z pohledu bezpečnosti. Bylo provedeno porovnání mezi Shodan, ZoomEye, Nexpose, Censys a BinaryEdge. Tyto vyhledávače byly porovnávány podle různých kritérií, například výkonnosti a jejich dalších veřejně dostupných informací. Jako nejvhodnější byly vybrány Shodan a ZoomEye a pomocí těchto vyhledavačů byla vytvořena webová aplikace. Tato aplikace je schopna načítat výsledky vyhledávání ze serverů pomocí jejich rozhraní API a je schopna je ukládat do databáze. Součástí práce je popis průmyslových a energetických protokolů, sítí a jejich bezpečnostních prvků. V rámci práce byl také popis několika nejznámějších útoků na tyto sítě. Posledním cílem práce je provést testování a evaluaci realizovaného nástroje na minimálně dvou zařízeních.
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Modbus TCP interface
Krotký, Pavel ; Bohrn, Marek (referee) ; Pavlík, Michal (advisor)
Main puropose of this thesis is to design and develop Ethernet to serial interface converter. Ethernet and serial line protocols are briefly described. Appropriate microprocessor and hardware for realisation of each physical layars were choosen. Convertor uses Texas Instrument's TI-RTOS operating system. Convertor's purpose is to pass on communication between physical layers and also fulfill webserver role with configuration possibilities.
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Terminal for testing of data communication of public transport vehicles
Fiala, Michal ; Holek, Radovan (referee) ; Macho, Tomáš (advisor)
This term paper deals with subject of wireless communication of city rail transport cars. In this paper are described individual modules for transmission and receiving of data containing communication between city rail transport cars and measures of siding switches. Then there are discussed possibilities of design of system for testing functionality of transmitting and receiving modules and the system is consequently designed. There are also described communication principles and protocol used for wireless communication and MODBUS protocol used for communication over RS-485 serial line. In the end was the system manufactured, completed and equipped with necessary software.
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Graphical LCD display
Kulka, Branislav ; Kaczmarczyk, Václav (referee) ; Bradáč, Zdeněk (advisor)
Bachelor's thesis "Graphical LCD Display" is focused on designing graphical diplaying unit for displaying industrial data, which is equipped with RS232/RS485 interface and digital inputs and outputs. Device is equipped with I51 series microcontroller. In this work MODBUS protocol is discussed and implemented. Data can be dispayed on circle scale or in form of bargraph indicators.
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