Fan Monitoring - Siemens Simatic 620 Owner's Manual

Hardware Information
7.4.5

Fan Monitoring

Processor fan operation is monitored. If the fan should fail, the following reactions
are triggered:
SOM application is displayed
The temperature error remains stored until the cause of the fan failure has been
corrected in one of the following ways:
S Acknowledgement of the error message via the SOM program.
S Device restart.
7-8
Reaction Option
always
SIMATIC Box PC 620 Manual
A5E00131465-01