IEC 61298-2:2019 represents a significant step forward in standardizing inputs and outputs for process automation. The new developments in the standard are poised to support the evolving needs of the industry, facilitating more efficient, flexible, and secure process automation systems. As the industry continues to adopt digital transformation and Industry 4.0 technologies, the guidelines provided by IEC 61298-2:2019 will play a crucial role in ensuring effective and interoperable solutions.