Siemens SIMATIC S7-1200 Veiligheidsprogrammering Manualline - Pagina 13

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Siemens SIMATIC S7-1200 Veiligheidsprogrammering Manualline
2 Configuring Fail-Safe Controllers
2.6

Know-how protection

STEP 7 Safety V14 or higher allows you to activate know-how protection for fail-
safe blocks (FCs and FBs).
Know-how protection protects specific program parts against access by
unauthorized persons, regardless of the F-CPU's and the safety program's access
protection. The contents of an FC or FB cannot be viewed or modified without a
password.
Recommendation
During the project phase, determine to what extent it makes sense to protect the
blocks of a safety program against third-party access.
Advantages
Protects your know-how across contents of program parts.
Accepted blocks cannot be modified.
Additional information
The following documentation provides instructions for using know-how protection
for different scenarios:
https://support.industry.siemens.com/cs/ww/en/view/109742314
Safety Programming Guideline
Entry ID: 109750255,
V1.0,
10/2017
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