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Transfer the IEC 61850 standard for communication protocol ModBus
Šikula, Jiří ; ABB, Oleksiy Melnyk, (referee) ; Polsterová, Helena (advisor)
This work describes the modbus communication protocol used in earlier and recent medium voltage switchgears. It also describes the IEC61850, a communication standard for most of the switchgear manufacturers as ABB, Siemens and others. It further describes the station automation gateway COM600, which is capable of conversion between many communication protocols. And finaly in this work you can find the concept of a device which is capable of conversion from IEC61850 to Modbus.
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Simulator and client for MODBUS devices
Ondrášek, Michael ; Franek, Lešek (referee) ; Fiedler, Petr (advisor)
This bachelor’s thesis deals with communication protocol MODBUS. The properties of the protocol and its function are described at the beginning of a thesis. There are designed two applications on the basis of identified properties in the other part of thesis, they represent the server part and the client´s part. The server part is implemented by selected functions of protocol and it represents devices for data collection. The next part is the detailed design of applications and the description of their realization. The last part deals with testing of designed applications with available SW simulators. The thesis deals also with user manual for control of created applications.
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Datalogger
Štupák, Branislav ; Bejček, Ludvík (referee) ; Beneš, Petr (advisor)
The bachelor thesis deals with the datalogger development for monitoring roof constructions ambients of historical buildings. The device is made of microcontroller ATmega328P and is using simple principles of environment monitoring. The device saves measured data to SD card from air temperature, air humidity, light intensity, wood moisture and air flow sensors. In conclusion of the thesis are then succesfully tested and summarized the properties of designed datalogger’s sensors.
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Gathering information about industrial equipment using a search engine
Danko, Krištof ; Fujdiak, Radek (referee) ; Pospíšil, Ondřej (advisor)
The work is focused on operating technologies, specificaly on the security of PLC (programmable logic controller), and obtaining information using device search engines. The types and parts of industrial networks, which are the main segment of operational technologies, and the search engines such as Shodan, Censy, BinaryEdge, and Zoomeye are described. These search engines are compared based on available information and industry protocols Siemens S7, Modbus, Ethernet / IP, and DNP3. In addition to comparing search engines, this work aims to create an application that can download results from the Shodan search engine via the Shodan API and store them in a database. Another point of work is the connection of own PLC, to determine the time of PLC appearing in search engines.
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An Application with HAWK Controller
Klíma, Jaroslav ; Štohl, Radek (referee) ; Jirgl, Miroslav (advisor)
The target of this bachelor’s thesis is to execute a connection between the HAWK controller by the Centraline/Honeywell company and crane models through the MODBUS/TCP communication protocol, including a demonstration of its functionality and creating a visualisation. Programmable machines SIEMENS S7-1200 were used to control the models. The first part of the thesis is dedicated to describing the HAWK controller and its communication options in its basic configuration. The second part is dedicated to the most utilized functions and terminology of the COACHAX development environment thanks to which the MODBUS communication is executed and a demonstration application is created. The practical part first offers a basic exercise to demonstrate the communication of a programmable machine and the HAWK controller through MODBUS/TCP and then an application which creates a shell system surface, unlike the programmable machines, and offers advanced options of controlling the model and formation of basic functional statistics.
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Module of Analog Outputs with Modbus Communication
Neuwirth, Tomáš ; Fiedler, Petr (referee) ; Bradáč, Zdeněk (advisor)
The aim of this bachelor´s thesis is the creation of analog output module with Modbus interface. From Sketch diagram connections, printed circuit boards to the software throughout the module. The device fulfills demands for simple and rapid implementation in industrial environments with possibility to choose a communication bus and some protection against damage. In the introduction and in the first part of the work are described all the theoretical properties, principles and options, which has a MODBUS protocol. Following part of the document points to some products which work by using of this interface. Mainly describes the principles and characteristics of these modules. In the fourth section is described the design of the module. It is focused on the functional description of sub-circuits, with their theoretical properties and the actual wiring in the circuit. In the last part of the work are described separate steps of the programme process.
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GSM gate for PLC systems
Kadaňka, Karel ; Cipín, Radoslav (referee) ; Knobloch, Jan (advisor)
The master´s thesis describes the initial design of communication module for industrial automation purposes which can transmit short status messages via the GSM network informing about the status of the connected device to a predefined telephone number. In the first part, the communication protocols are describe and a market survey is carried out. Then follows the evaluation of the market survey and the justification of construction of the device. The following chapters are devoted to the description of the device being developed, its individual components and program description and testing prototype.
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Cyber security testing in an environment of operational technology
Kuna, Erik ; Pospíšil, Ondřej (referee) ; Paučo, Daniel (advisor)
The topic of this work is security testing in connection with operational technology networks. The theoretical part covers description of operational technology, analysis of the current state of security in such networks and the methodology for penetration testing in this context. A section is devoted to protocols relating to said networks, comprising their characteristics, comparison of the same and related advantages and disadvantages. The theoretical part aids comprehension of the practical section, which details design and implementation of a suitable environment for testing and performing security in ICS/SCADA. Therein, emphasis is placed on security issues that pertain to the ModBus protocol.
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Ni sensors to Ethernet convertor
Kubíček, Ondřej ; Fiedler, Petr (referee) ; Bradáč, Zdeněk (advisor)
This work deals with hardware and software solution for the temperature converter of the standard rezistance temperature Ni sensors with the output through the Ethernet, driven by the Rabbit microcontroller. First part of this thesis deals with the theory of the temperature measurement. There are introduced basic principles of the temperature sensors. In the next part of the work are introduced communication standard and application protocol Modbus. The rest of the work deals with the hardware concept of the converter, the control program of the converter and the program developed for the PC.
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