Compiling The S7 Program - Siemens SIMATIC PCS 7 Operating Manual

7.8.3

Compiling the S7 program

During compilation, the S7 program is automatically expanded to include diagnostics drivers
(contained in the @ system charts) and F-specific parts.
F system blocks are stored in @F_xxxx charts.
Note
Placements, interconnections, and parameter assignments for F-system blocks completed
automatically during the compilation process must not be changed.
You must not change or delete F blocks in the block container.
The CFC compiler also automatically places F system blocks needed for the operation of the
safety program in runtime groups. The names of these runtime groups begin with "@F_".
Compendium Part B - Process Safety (V8.2)
Operating Manual, 07/2016, A5E35031794-AB
Configuring the safety program
7.8 Compiling the F-program
119