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NDAS-N. User Manual.
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Fig. 13.1. Raw Data Logger module. Enabling and disabling
13.2 Module control
Use the
Manage
tab on the module configuration page to select the operation mode.
Four modes are available:
Start immediately
– start recording the data immediately after enabling;
Start when time valid
– start recording the data after synchronizing.
The module algorithm considers the timestamp valid if the
drift time
field in the metadata
package has a value other than 0, that is, synchronization for the stream was set up at least
once in the past. That means the data recording will begin after synchronization and will no
longer be interrupted even if the exact time source gets unavailable.
Start manually
– start and stop recording manually by the user's command;
Start by schedule
– start and stop recording on schedule.
To set the required operation mode, select the corresponding line put of the drop-down list, if
necessary, set the start and stop time. Then click the
apply
button.
When the
Start manually
mode is selected, control recording using the
start
button.
If the recording is performed into an external USB drive, it is required to press the
Safely remove
USB drive
button – this will reset the buffered data to the disk and close all files correctly.
