Control & Safety System Experts

Designing, Implementing, Commissioning

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Modbus is a de facto standard for industrial communication protocols. Because it is open source and royalty-free, it is widely used by manufacturers to connect software and electronic devices. A choice supported also by G. M. International in the RTU version.

Born back in 1979 within Modicon (now a brand of Schneider Electric) the Modbus protocol is still one of the most popular serial communication systems between PLC, DCS, controllers, sensors, actuators, field devices and interfaces. The Modbus protocol is the oldest and most widespread serial fieldbus.

Its success is due to its royalty-free and hardware independent nature, toughness, ease of implementation, availability of specifications that have allowed its use in a wide variety of areas such as distributed automation, process control, energy monitoring, remote control, building automation and plant supervision.

The wide availability of libraries and the low cost of implementation also encourages the use of Modbus in internal networks of medium and high complexity systems. Certainly, the industrial communication market sees a growing predominance of Ethernet, Wireless and IoT technologies, but traditional fieldbuses keep a huge installed capacity and represent 35% of new nodes installed (HMS Network 2019 study). The most common fieldbus is still Profibus which holds 10% of the world market but is followed by Modbus RTU with a 5% share.




System Integration

System Integration refers to the process by which multiple individual subsystems or sub-components are combined into one all-encompassing larger system thereby allowing the subsystems to function together. In other words, the symbiosis created through system integration allows the main system to achieve the overarching functionality required by the organisation.

Carbon Net Zero

In seeking to deliver net-zero emissions by 2050, the UK starts from a position of advantage. The Climate Change Act provides the legal framework for decarbonisation, with the independent Committee on Climate Change setting out the legally-binding Carbon Budgets required to meet the government’s emissions reduction target. The new legal commitment to net zero by 2050 represents a 
significant step change in the UK’s level of ambition. Putting this on a statutory basis is good, but without an equally strong and effective structure inside government the legal commitment alone will not drive the required transformation of our economy and society
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