Siemens SIMATIC S7 Functional Safety Manual page 49

Opening the Safety Administration editor
1. In the "Project tree" of the fail-safe CPU, double-click on "Safety Administration".
Result: The "Safety Administration" editor opens.
You make central settings for the safety program in the Safety Administration editor.
2. In the area navigation of the Safety Administration editor, click "Safety runtime group".
The F-runtime group is created automatically when the fail-safe CPU is created and the
associated main safety block is displayed:
The cyclic interrupt OB (FOB_1 [OB123]) calls the main safety block (Main_Safety [FB1]) by
default. The F-blocks created by the user are called from the main safety block. You can
change the calling block and the called block at any time.
Leave the preset blocks for this example.
For additional information on the Safety Administration editor, refer to the SIMATIC,
Industrial Software, SIMATIC Safety - Configuring and Programming, Programming and
Operating Manual (http://support.automation.siemens.com/WW/view/en/54110126/0/en).
Numbering ranges of fail-safe system blocks
When the safety program is compiled, F-blocks are automatically added in order to generate
an executable safety program.
By default, the system automatically manages the numbering range, which is displayed in
the Safety Administration editor under "Settings".
Keep the pre-assigned settings for this example.
S7-1200 Functional Safety Manual
Manual, 02/2015, A5E03470344-AA
Getting started
2.3 Programming
49