Experimental Implementation and Performance Evaluation of an IoT Access Gateway for the Modbus Extension

Găitan, Vasile Gheorghiţă; Zagan, Ionel

doi:10.3390/s21010246

Cited by 15 publications

(21 citation statements)

References 29 publications

(28 reference statements)

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“…While the Application Protocol Data Unit (APDU) is identical for all Modbus lower layers, the client/server scheme used by Modbus exploits the full potential of the different possibilities afforded by the lower layer presently in use. The following is a summary of the ModbusE extension described in the literature in [ 2 , 22 ]. Thus, ModbusE uses two types of objects: PDO (Process Data Object) for transferring processing data; SDO (Service Data Object) for setup, servicing, and testing.…”

Section: Basic Architecture Of Servermbu_i Application With Modbusementioning

confidence: 99%

“…Compared with the previous publication [ 22 ], the server module proposed in this paper is a novelty because it is the first ModbusE (MBE)-based implementation integrated into an SH. The system required the implementation of the Modbus RTU protocol at BIoT (smart switch) server stations, respectively, as well as the completion and definition of new requirements for the Modbus protocol extension called ModbusE at the MBE_RTU server station level with 100% compatibility with the maintained Modbus RTU protocol [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

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Modbus Extension Server Implementation for BIoT-Enabled Smart Switch Embedded System Device

Găitan,

Zagan

2024

Sensors

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The industrial control and automation sector has invested in the development and standardization of new wireless (WirelessHART, ISA 100.11a, and WIA-PA) and wired (Profibus/Profinet, Modbus, and LonWORK) solutions aimed at automating processes to support standard monitoring and control functions from the perspective of addressing critical applications, as well as those integrated within the Building Internet of Things (BIoT) concept. Distributed data acquisition and control systems allow modern installations to monitor and control devices remotely. Various network protocols have been proposed to specify communication formats between a client/gateway and server devices, with Modbus being an example that has been widely implemented in the latest industrial electrical installations. The main contribution made in this paper concerns the completion of the Modbus Extension (ModbusE) specifications for the server station in the classical Modbus communication architecture, as well as their implementation and testing in an STM32F4 kit. A general-purpose control architecture is proposed for BIoT sector, comprising both intelligent touch switches and communication protocols of which the Modbus protocol is used extensively for the monitoring and control part, especially between clients, smart switches, and devices. The specific contributions concern the presentation of a scientific and practical implementation of improved specifications and their integration as software modules on ModbusE protocol server stations. A client station with a VirtualComm USB PC connection is also implemented in the lab to test the operation of the proposed server with specific Modbus applications.

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Section: Basic Architecture Of Servermbu_i Application With Modbusementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modbus Extension Server Implementation for BIoT-Enabled Smart Switch Embedded System Device

Găitan,

Zagan

2024

Sensors

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“…In order to deal with diferent application scenarios in the industrial control system, many communication protocols are designed for ICS, such as Modbus, Distributed Network Protocol 3 (DNP3), and Controller Area Network Bus (CANBUS). Among them, as a serial communication protocol, Modbus has become one of the most popular communication protocols due to its simple and easy-tounderstand messages format and open standard [7]. Modbus TCP protocol is a communication mode of Modbus protocol, which is an Ethernet application-layer communication protocol based on TCP/IP.…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of a Lightweight Security-Enhanced Scheme for Modbus TCP Protocol

Liu

Liang

Wang

et al. 2023

Security and Communication Networks

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The advent of Industry 4.0 has made people pay more and more attention to the security of the industrial control system. As a common and typical communication protocol, Modbus does not consider the problem of data security at the beginning of its design, which provides opportunities for criminals. In this paper, we design a security scheme to protect the traditional Modbus TCP protocol, by using domestic encryption algorithms. As a result, the proposed scheme is able to identity authentication, data encryption, data integrity check, and anti-replay attacks. Security analysis and experimental results show that our proposed scheme solves the security problem of Modbus TCP protocol with minimal overhead increase.

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“…Today, numerous application fields are unthinkable without them: factory automation [7], distributed process control [8], building automation and energy distribution in general, but also the automotive industry, railway applications and aeronautical field. All these sectors rely heavily on the availability of suitable networks that meet special requirements of individual applications [9], [10].…”

Section: Introductionmentioning

confidence: 99%

Modbus Protocol Performance Analysis in a Variable Configuration of the Physical Fieldbus Architecture

Găitan

Zagan

2022

IEEE Access

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Few developments have changed the evolution of the automation process as substantially as the development of industrial local area networks and communication protocols. Especially fieldbus systems, networks created for the lowest levels of the automation hierarchy, have an enormous influence on the flexibility and performance of modern automation systems in all application areas. The technique of updating data on Modbus type devices involves a procedure of reading data at regular time intervals called pooling. Some automation processes include interdependence between different control variables belonging to different hardware devices. This paper presents and analyzes various scenarios related to a variable architecture configuration of physical modules based on Modbus communication protocol. The proposed Modbus Extension (ModbusE) concept is presented by defining the new optimized message format, and the structure of the acquisition cycle to obtain a deterministic temporal behavior, solutions for describing devices at the Modbus protocol level being presented. The status update of each Modbus module is done according to the address of the device, but also the number of registers per device. The paper analyses the worst-case scenario of communication involving Modbus devices on the same network and exchanging data corresponding to one or more server registers.INDEX TERMS Modbus, local industrial networks, acquisition cycle, fieldbus.

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Experimental Implementation and Performance Evaluation of an IoT Access Gateway for the Modbus Extension

Cited by 15 publications

References 29 publications

Modbus Extension Server Implementation for BIoT-Enabled Smart Switch Embedded System Device

Modbus Extension Server Implementation for BIoT-Enabled Smart Switch Embedded System Device

Design and Implementation of a Lightweight Security-Enhanced Scheme for Modbus TCP Protocol

Modbus Protocol Performance Analysis in a Variable Configuration of the Physical Fieldbus Architecture

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