PROFIBUS is an international standard for fieldbus communication in automation technology, facilitating reliable data exchange between controllers and devices in industrial systems. Managed by PROFIBUS & PROFINET International (PI), the organization promotes the development and adoption of PROFIBUS and PROFINET technologies. These protocols are widely used across industries such as manufacturing, process automation, and energy, enabling seamless integration and interoperability of automation components. PI provides comprehensive support, including certification, training, and technical resources, to ensure the effective implementation of its communication standards.