Delphin Expert Logger, Руководство пользователя

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Expert Logger
Use this tab to set the
Size
(amount) of memory that this group may use.
The memory can either be written to until full (
End storage process when
memory full
) or the group can be configured as a
Ring buffer.
As a ring
buffer, the current value overwrites the oldest value when the memory is
full. This means that the oldest values are deleted to make room for new
ones.
An alternative to the ring buffer is the
Delete trigger function.
Enter a
(digital) channel as the trigger for deletion. A calculated channel can be
used that monitors memory capacity and then deletes the memory when a
specified capacity has been reached.
Save
l
Start values : When enabled, the current values from all channels in the chan-
nel list are saved when the memory group starts. The storage group starts
by activation in this dialogue or following the switching on/rebooting of the
device and active storage group.
l
Time change : When enabled, time changes, such as synchronising using
NTP time, triggers extra saving to the memory group from the channels in
the channel list. This helps identify the cause of a "time mismatch” of data.
l
Configuration changes : When enabled, it saves changes to the channel con-
figuration in this memory group along with the time of change, the version
number and the configuration file history in the device (/pm/-
config/channels/backup/).
l
Saving values cyclically : When enabled, saving takes place at the given inter-
val irrespective of any trigger or tolerance settings.
Memory control
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Continuous : The current value is saved when a tolerance is exceeded depend-
ing on the tolerance settings for the channel in the channel list .
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Single step : Functions as for the edge trigger, but without pre-or post-trig-
ger times.
l
Edge trigger : Saving takes places with a change (edge) in a (digital) signal.
l
Level trigger : Measurement data is saved as long as the given level remains
active.
For Edge trigger and Level trigger options, an additional pre-trigger
and/or post-trigger time before and/or after the trigger event can be spe-
cified for saving to take place. Data is then stored at these times when a
value exceeds the tolerance settings for a particular channel.
Retriggerable : Use this option to set a new wait period for the post-trigger
time if a new trigger occurs during the post-trigger trime. The number of
times this may happen is specified via
Retrigger limited to .
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Delphin Technology AG
Januar 2018
Expert Logger Manual