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Importance of Modbus protocol in IoT

Modbus protocol is mainly used to convey signals from industrial devices primarily involving instrumentation control and data acquisition devices to a typical micro-controller unit (MCU) or to a data collection system. Modbus protocol was published by Modicon in the year 1979. Modbus is a communication protocol extensively used in industries and industrial devices specifically confining its implementation in programmable logic controllers (PLC) for industrial automation applications.

Since the Modbus protocol was transferred from Schneider Electric to the Modbus Organization in April 2004, it has become a de facto standard communication protocol and has evolved into a broad set of protocols over a variety of physical links. Modbus is a protocol that follows a master–slave model in which the slave device (can be up to 247 devices) returns a response to a request generated by the master device (usually one device). Further, the specifications of Modbus and its corresponding protocols (Modbus TCP/IP, Modbus RTU) are free to download with no licensing fees.

Modbus Protocol in IoT applications

Since Modbus is a predominant industry-oriented communication protocol, its role in the area of IoT (Internet of Things) is inevitable and prevails significantly in the area of IIoT (Industrial IoT/ Industry 4.0).Systems based on Modbus protocol plays a major part in the internet connectivity for the automation and control industries. Subsequently in these industries, Modbus protocols are mainly used to interface SCADA or BMS systems. You can view the application areas of modbus protocol here.

A Modbus protocol enabled IoT device or literally a Modbus ‘Thing’ is connected to a Modbus device through an IoT platform (basically an IIOT gateway) which controls numerous Modbus communicating devices, establishing a secure, duplex channel connection over the internet. This type of secure duplex connection through Modbus communication protocol helps to overcome the necessity of using VPN, firewalls and other complex networks. Furthermore, the impact of Modbus protocol in the IIoT industry has considerably boosted the performance, robustness, efficiency and connectivity for industrial organizations thereby reducing cost and time efforts and increasing overall productivity for the manufacturing industry.

Modbus protocol is mainly used to convey signals from industrial devices primarily involving instrumentation control and data acquisition devices to a typical micro-controller unit (MCU) or to a data collection system. Modbus protocol was published by Modicon in the year 1979. Modbus is a communication protocol extensively used in industries and industrial devices specifically confining its implementation in programmable logic controllers (PLC) for industrial automation applications.

Since the Modbus protocol was transferred from Schneider Electric to the Modbus Organization in April 2004, it has become a de facto standard communication protocol and has evolved into a broad set of protocols over a variety of physical links. Modbus is a protocol that follows a master–slave model in which the slave device (can be up to 247 devices) returns a response to a request generated by the master device (usually one device). Further, the specifications of Modbus and its corresponding protocols (Modbus TCP/IP, Modbus RTU) are free to download with no licensing fees.

Modbus Protocol in IoT applications

Since Modbus is a predominant industry-oriented communication protocol, its role in the area of IoT (Internet of Things) is inevitable and prevails significantly in the area of IIoT (Industrial IoT/ Industry 4.0).Systems based on Modbus protocol plays a major part in the internet connectivity for the automation and control industries. Subsequently in these industries, Modbus protocols are mainly used to interface SCADA or BMS systems. You can view the application areas of modbus protocol here.

A Modbus protocol enabled IoT device or literally a Modbus ‘Thing’ is connected to a Modbus device through an IoT platform (basically an IIOT gateway) which controls numerous Modbus communicating devices, establishing a secure, duplex channel connection over the internet. This type of secure duplex connection through Modbus communication protocol helps to overcome the necessity of using VPN, firewalls and other complex networks. Furthermore, the impact of Modbus protocol in the IIoT industry has considerably boosted the performance, robustness, efficiency and connectivity for industrial organizations thereby reducing cost and time efforts and increasing overall productivity for the manufacturing industry.

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