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Battery Monitoring - Siemens simatic ipc227e Operating Instructions Manual

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Commissioning the device and device functions
4.4 Advanced device functions
Watchdog reactions
The following reactions can occur if the watchdog is not addressed within the set time:
Reset on
Reset off
"Reset on" option
The "Reset on" option immediately triggers a hardware reset that may result in loss of data
under Windows and damage to the installation.
Watchdog monitoring times
The hardware supports the following times:
● Normal mode: 94 ms, 210 ms, 340 ms, 460 ms, 590 ms, 710 ms, 840 ms and 960 ms.
● Macro mode: 2s, 4s, 6s, 8s, 16s, 32s, 48s and 64s.
Set the monitoring times in SIMATIC Diagnostics Management as integer in the range from
4 to 64 seconds.
Contact Customer Support for a detailed description of the Watchdog functions.

Battery monitoring

The installed backup battery has a limited service life, see section "Replace the backup
battery (Page 65)". 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.
Executes a hardware reset when the watchdog expires
Executes no action when the watchdog expires
Restarts the operating system when the watchdog expires
Shuts down the operating system when the watchdog expires
Operating Instructions, 11/2016, A5E35782395-AB


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