Advantech TPC-1071H User Manual page 85

In the Setting tab, there are the following items:
1.
Timer Span combo box:
You can select one timer span for the Watchdog and apply the changes when
the Watchdog is disabled, there are 6 timer span arranges from 15 seconds to 4
minutes 15 seconds available.
2. Watch Mode radio box group:
There are two watch modes, system watch mode and application watch mode. If
you checked the "Application" mode and apply settings by the "Apply" button,
then if you enable the Watchdog later, there will pop up a piece of warning mes-
sage which is shown below to notify you to strobe the Watchdog manually by
click the "Strobe" button, otherwise the machine will reboot depending on the
time you set.
Definition: System mode: Watchdog timer is running in Windows background. If
the hardware is hung up, it will reboot system automatically.
Application mode: Watchdog timer will be enabled when you call the APIs within
your application.
3. Log Event check box:
If this check box is checked and the settings is applied by the "Apply" button,
then the "Enabled", "Disable", "Reboot" operation of the Watchdog will be
logged into the system event base, otherwise the three operation will be not be
logged into the system event base. For more detail about log function, please
refer to the Watchdog WDM Driver User's Manual.
4. Enable/Disable button:
Enable or disable the Watchdog. If the Watchdog is enabled, you can not
change the watch mode and the timer span of the Watchdog, so these related
controls become grayed. These controls resume to their normal status when the
Watchdog becomes disabled.
5. Strobe button:
Strobe the Watchdog. This button become available only when the Watchdog
runs in application-watch mode and the Watchdog is enabled.
6. Reboot button:
Reboot the machine by no strobe the Watchdog hardware. This button is not
available when the Watchdog is disabled. If the Watchdog is enabled and you
click this "Reboot" button then all the three buttons: "Enable/Disable", "Strobe"
and "Reboot" becomes grayed, no operations can cancel the rebooting machine
operation but stop the Advantech Watchdog service.
77 TPC-1071H/1271H/1571H/1771H User Manu-