Operation
4.4 Watch Dog
LDS 6
64 Operating Instructions, 01/2009, A5E00295894-05
4.4 Watch Dog
In the unlikely event that the software in LDS 6 should crash it will reboot with the help of a
watch dog. The instrument will be down for approximately 3 minutes if this should happen
and then measure normally again. It is very unusual that this should happen but if it does the
watchdog prevents the system from going down and stay down.
Measurement
OK
Frozen value 0 mA output
Function control
mode (configurable)
0 mA out if response
is latest or if Function
control is off
Measurement
OK
Module crash
From this point, normal
startup behaviour
0-16 s approx 1 min approx 1 min
Figure 4-4 Illustration of the events during a software crash.
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