ABB AC500-S Safety User Manual page 152

Configuration and programming
System configuration and programming > Programming of AC500-S safety CPU
9.
Fig. 78: Create boot project for the safety CPU
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Download your safety application to the safety CPU.
Download your safety application and create a boot project so that your safety CPU can
start safety program execution after powering off/on.
NOTICE!
The "Online Change" service of CODESYS is not supported by the safety
CPU for safety reasons. It means that each program change of
CODESYS Safety project requires stopping the safety CPU, downloading
a new boot project and then powering off/on or rebooting through non-
safety CPU to see the safety program change(s) become active.
NOTICE!
Only one user can be logged-on to the given safety CPU at a time. It is
needed to avoid multiple changes on the safety CPU from different users
working at the same time.
The limitation on the number of open connections only exists for the
safety CPU, which means that it is still possible to simultaneously connect
to non-safety CPU, e.g., using web and OPC server functionality.
3ADR025091M0208, 12, en_US 2020/06/19