Advanced device functions
5.1 Monitoring functions
SIMATIC IPC277D
Operating Instructions, 12/2016, A5E03409486-AE
59
Set the monitoring times in SIMATIC Diagnostics Management as integer values in the
range from 4 to 255 seconds.
Note
The watchdog will be retriggered if you change the watchdog time after the WD has been
activated.
The installed backup battery has a limited service life, see section "Replacing the backup
battery (Page 85)". A two-tier battery monitoring checks the status of the backup battery. The
SIMATIC DiagBase and SIMATIC DiagMonitor diagnostic software determines the status of
the backup battery.
When the first warning level is reached, the battery for buffering CMOS data still has a
remaining service life of at least one month.
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