This thesis deals with study of materials needed for proposing and implementation of the industry state indicator. In the theoretical part there are describe all used components including calculations. Then there is a description of the communication interface used on the indicator. The theoretical part is then followed by a description of MODBUS protocol. The practical part is divided into a few sections. First one decribes the implementation itself together with the idicator activation. Second one describes the programme equipment of microcotroller. The conclusion is about description of the application testing.

A research project investigating microwave radio frequency propagation in a 500 mile link across the Gulf of Mexico requires a remote-control process to command microcontroller-based devices including power control modules and antenna feedhorn positioners, and to telemeter system parameters back to the operators. The solution that was developed is a simple, webserver-based user-interface that can be accessed both locally and remotely via the internet. To interface the webservers with the microcontroller-based devices, a polling protocol, based on MODBUS, was developed that provides an efficient command and telemetry link over a serial RS-485 interface.

The aim of this work is to implement a workplace that will simulate the network infrastructure of industrial automation protocols. In this work we focus on and perform analysis of industrial protocols ModBus, Profibus, Profinet, EtherCAT, CANopen. Furthermore, the network infrastructure with PLC with selected protocols will be operated. The output of the work will be a workplace that will be able to simulate real communication of two selected protocols between two and more devices. Another part of the work will be the simulation of three types of equipment occurring in an industrial environment.

The main objective of this work is to inform the reader of the communication protocols Modbus TCP and Modbus RTU and create an embedded device based on the microprocessor STM32 capable of conversion between Modbus RTU and Modbus TCP protocols. The device should be capable of simple first run configuration with simple user interface.

The report is focused on the implementation of a data acquisition system that will be used for measuring different parameters which are needed in solar panel behavior analysis. To accomplish the DAQ system a DAQ board has been designed and implemented. This DAQ board acquires measured climatic parameters that affect the PV module behavior and voltage and current of a PV module. The DAQ board may take measurements of multiple analog and digital signals that come from various sensors including solar radiation, temperature, wind sensors and other measurement devices. The DAQ board may also output analog signals for controlling other devices. The DAQ board is the basic part of the DAQ system and several of them can be connected via a single communication bus (RS485). A unique slave ID can be assigned to each DAQ board on the communication bus, which allows the control of all boards via a GUI application installed on a master computer. Therefore, the DAQ system can be used for monitoring a PV module installation as well as logging the measured data in a data storage server. This report outlines the details of the DAQ system design which are helpful in utilizing or upgrading this system. These details also include programming of DAQ board and implementation of MODBUS communication protocol within the DAQ system.

Use of legacy and wireless protocols in modern IoT The main goals of this work is implementation of an extension into Inthouse system which will allow remote control of widespread Modbus-enabled devices and creation of an in-house-made simple controller controllable via Bluetooth using simplified JSON RPC protocol and addition of its control support into Inthouse. The next step is to summarize each implementation focusing on its technical complexity and a business potential. This work uncovers interesting details from the implementation and explain causes why such implementation was used in a commercial environment.

Steiger, V. Usage of ARM processors in heating control system. Diploma thesis. Brno: Mendel University, 2016. This thesis aims to simplify the process of controlling heating and cooling systems with standardised, widely accessible computers on purpose of integration into smart home systems. In theoretical part, heating systems available on the market are reviewed, mainly with focus on communication interfaces and protocols in use. Then the specifications of one of the most widely used protocol in heating systems communication OpenTherm, and one of the most widely used protocols in industrial computers communication RS485 Modbus are examined. Theoretical part also contains a description of integrated development environment and platform-specific development properties for STM32 ARM platform. In desing and Implementation is described RS485 Modbus OpenTherm converter firmware written in C language. Behaviour of the converter is then tested in practise.

Use of legacy and wireless protocols in modern IoT The main goals of this work is implementation of an extension into Inthouse system which will allow remote control of widespread Modbus-enabled devices and creation of an in-house-made simple controller controllable via Bluetooth using simplified JSON RPC protocol and addition of its control support into Inthouse. The next step is to summarize each implementation focusing on its technical complexity and a business potential. This work uncovers interesting details from the implementation and explain causes why such implementation was used in a commercial environment.

Avec l’essor de l'Industrie 4.0, de nombreuses infrastructures ont été contraintes d’ouvrir leurs réseaux à Internet, principalement pour répondre au besoin croissant de supervision et de contrôle à distance. Mais là où ces infrastructures étaient auparavant isolées, épargnées par les menaces extérieures, leur ouverture a provoqué l’émergence de nouveaux risques, en particulier à travers le réseau, potentiellement sérieux et qui ne sont pas couverts.Les solutions de cybersécurité, comme les pare-feux, les systèmes de détection d’intrusion ou les systèmes de protection contre les intrusions, sont couramment utilisés pour répondre aux préoccupations liées à la cybersécurité des infrastructures industrielles. Cependant, la tendance à se fier aux systèmes logiciels pour assurer la protection du réseau a mis en lumière les vulnérabilités de ces systèmes, en raison de leurs implémentations logicielles inhérentes. En outre, l’industrie est liée à ses propres spécificités (faible latence, support de protocoles réseaux spécifiques), qui sont rarement couvertes par les solutions informatiques communes.L’objectif principal de cette thèse est d’étudier l’utilisation de dispositifs FPGA appliqués à la cybersécurité pour les réseaux industriels, soit comme support pour des applications de sécurité logicielle, soit pour effectuer des opérations critiques d’analyse réseau. Ce travail présente d’abord le contexte industriel, avec les systèmes de contrôle, leurs architectures, leurs besoins, les règles de mise en œuvre, les protocoles spécifiques et donne également deux exemples de systèmes de contrôle comme on peut en trouver dans l’industrie. Il met ensuite en lumière les problèmes de sécurité, avec une description des menaces les plus courantes, des études de cas sur leurs applications et leurs impacts dans un système de contrôle, et des discussions sur les contre-mesures de pointe disponibles sur le marché. Suite à l'établissement d'une cible de sécurité, nous mettrons en évidence la vulnérabilité des éléments logiciels et des systèmes d’exploitation. Nous verrons aussi comment l’absence d’analyse de sécurité tenant compte de l’état des processus peut mener à certaines vulnérabilités.Pour pallier à ces problèmes, nous proposons, par une première contribution, de renforcer la sécurité des systèmes logiciels en tirant parti des mécanismes de protection existants du FPGA. Enfin, pour répondre à des menaces applicatives spécifiques, nous proposons la mise en œuvre d’une architecture de reconnaissance de motifs, sur FPGA, prenant en considération le cadre temporel et l'état du procédé industriel. Cette thèse a été réalisée en collaboration avec le Laboratoire d'Informatique, de Robotique et de Microélectronique de Montpellier (LIRMM) et la société SECLAB. / With the rise of Industry 4.0, many infrastructures were forced to open their networks to the Internet, mainly to meet the growing need for supervision and remote control. But where these infrastructures were previously isolated, spared from external threats, their opening has caused the emergence of new threats, particularly network ones, which were not addressed and present serious risks.Network cybersecurity solutions, like Firewalls, Intrusion Detection Systems or Intrusion Protection Systems are commonly used to address the concern of industrial infrastructures cybersecurity. However the trend of relying on software-based systems to ensure network protection brought to light the vulnerabilities of these systems, due to their inherent software implementation. Furthermore, the industry is tied to its own specificities (low-latency, support of specific network protocols), which are rarely covered by common IT solutions.The main goal of this thesis is to study the use of FPGA-based devices applied to cybersecurity for industrial networks. Either as support for software-based security applications, or to perform critical network analysis operations. First it presents the industrial context, with control systems, their architectures, needs, implementation rules, specific protocols and also gives two examples of control systems as they can be found in the industry. Then it highlights the security problematic, with a description of the most common threats, cases study about their applications and impact in a control system, and discussions on the state of the art counter-measures available on the market. Through the establishment of a security target, it points the vulnerability of software elements and operating systems as well as the lack of process state aware security analysis.To address these issues, we propose, through a first contribution, to enforce the security of the software system by taking advantage of existing FPGA's protection mechanisms. Finally, to answer specific application threats, we introduce an implementation of a brute force matching architecture with time and operational-process awareness, on FPGA.This thesis was conducted in collaboration between the Montpellier computer science, robotic and microelectronic laboratory (LIRMM) and the SECLAB company.

The aim of this work is to get familiar with operating system FreeRTOS and its usage in device design. It also explains usage of SW module LwIP (TCP/IP stack) and Free-MODBUS. Consequently is designed example device, simple operational panel. The panel communicates through ethernet interface using Modbus TCP protocol with connected PLCs on separate network. Its meet function of webserver, HID and also source of real time.