Siemens SIMATIC HMI series - Confirm Communication Error Dialog; Fatal Error Dialog

Fail-safe operation
9.3 Safety-related dialogs
Mobile Panels 2nd Generation
Operating Instructions, 09/2018, A5E33876626-AC
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9.3.2
"Confirm communication error" dialog
The following message is displayed when PROFIsafe communication is available again after
a communication error.
Acknowledge the communication error with the enabling button or confirm the
communication error on the fail-safe controller.
9.3.3
"Fatal Error" dialog
If the fail-safe module detects a serious error, the fail-safe automation system outputs the
"Fatal error" alarm. The fail-safe module must then be reset.
Note
This message may also occur if the Mobile Panel overheats. Check the ambient conditions.