Desenvolvimento de um Gateway Modbus TCP/DNP3 para aplicações em sistemas de energia

Abstract

The growing adoption of distributed generation through photovoltaic solar power plants has driven the demand for industrial automation solutions. These systems required the efficient and reliable integration of various field devices. In this context, the Modbus TCP and DNP3 communication standards stand out as essential technologies for SCADA systems, ensuring interoperability and centralized monitoring. This work presented the development of an embedded gateway between Modbus TCP and DNP3, implemented in C++. The solution aimed to facilitate the integration of typical solar plant equipment into supervisory systems, reducing costs with commercial software licenses and improving operational efficiency. The gateway was deployed on a Raspberry Pi, acting as a data concentrator and converting Modbus TCP messages, simulated by an ESP8266 device, to the DNP3 standard. Tests with real equipment from photovoltaic power plants were conducted to validate the solution under practical conditions. After performance analysis, it was concluded that the gateway operated as expected, offering an affordable, reliable, and easy-to-implement alternative, with the potential to significantly contribute to real-time remote supervision in the solar energy sector.