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Siemens SIMATIC S7-1200 Güvenlik Programlama Manualline

2 Configuring Fail-Safe Controllers

2.4

F-change history

F-change history acts like the standard user program's change history. In the

project tree, "Common data > Logs", one F-change history is created for each

F-CPU.

F-change history logs the following:



F-collective signature



User name



Compile time stamp



Download of the safety program with time stamp



Compiled F-blocks with signature and time stamp

Figure 2-6: F-change history

Recommendation

Activate change history when you start configuring or at the latest when you have

defined the final project-specific CPU name as the change history is linked to the

CPU name.

Figure 2-7: Activating F-change history

Safety Programming Guideline

Entry ID: 109750255,

V1.0,

10/2017