Application Form for MAC Addresses
PROFINET , PROFINET PA
Description:
Each PROFINET device is addressed via its globally unique MAC address. This MAC address is made up of a company code (bits 24 ... 47) as an OUI (Organizationally Unique Identifier) and a consecutive number (bits 0 ... 23), which can be used to identify up to 16,777,214 products. The OUI is assigned to each company by the IEEE Standards Department. PI has been assigned the OUI 00-0E-CF.
PI provides 4k ranges of PI's OUI to all device manufacturers who do not wish to apply for their own OUI.
MAC addresses derived from PI's OUI may only be used for certified PROFINET devices!
PROFINET devices must be certified!
Files:
| # | Date | Filename | Type | Size |
|---|---|---|---|---|
| Download | 04/08/2026 | PI_Application_MAC-Address_Jun25.pdf | 209 KB |
The downloads section on profibus.com offers a wealth of valuable resources that are essential for companies working in industrial automation. These documents, including technical descriptions, installation guides, and white papers, provide detailed insights into the implementation and use of PROFIBUS and PROFINET technologies. By accessing these resources, engineers and technical teams can significantly improve their understanding and efficiency in deploying robust, standardized communication solutions in industrial environments.
For companies looking to gain even more from the PROFIBUS ecosystem, becoming a member of PROFIBUS & PROFINET International (PI) offers additional benefits. Members enjoy exclusive access to advanced technical documentation, expert certification programs, and development tools that can accelerate innovation and ensure compliance with the latest industry standards. Membership also provides networking opportunities with other industry leaders, fostering collaboration and knowledge sharing, which is crucial in staying ahead in the fast-evolving automation landscape.
By joining PI, companies position themselves at the forefront of industrial communication technology, ensuring they remain competitive and well-equipped to tackle future challenges.

