I am unsure if this is the appropriate forum for my question; if not, I would appreciate your guidance.

I am currently analyzing the execution time of a light curtain implemented with the S1517F PLC. While reviewing the S7Safety_RTTPlus Excel file, I encountered the term "Runtime F Project" (see the attachment).

Could you please clarify the meaning of "Runtime F Project" in this context? Understanding this term is essential for accurately calculating the execution time.

Thank you for your assistance.

Vijay