Fan Monitoring - Siemens SIMATIC PC 670 Equipment Manual

Release 04/02
7.4.5

Fan monitoring

The operation of the processor fan is monitored. If the fan should fail, the following
reactions are triggered:
Temp LED from GREEN to RED
Trigger IRQ
The error remains saved until the cause of the failed fan is removed and the
temperature error is reset by one of the following measures.
S Acknowledgement of the error message via the SOM program.
S Restarting the device.
Panel PC 670 Computing Unit, Equipment Manual
Reaction
Hardware Information
Options
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Adjustable
7-9