L-INX User Manual
177
LOYTEC
Version 4.0
LOYTEC electronics GmbH
2.
Right-click and select
Configure Trend
from the context menu.
3.
Change to the
Triggers
tab.
Note:
Of course, you can also change directly to the
Triggers
tab when creating a trend object.
4.
Click the
Add…
button. A data point selection dialog opens.
5.
Select one or more data points and click
OK
.
6.
The triggers appear now in the
Trend Triggers
list.
7.
In the
Manage Trigger Conditions
you can refine the trigger condition depending on
the trigger data point class.
8.
When done with the data point setup, click
Save Changes
to leave the dialog.
6.14.4 Download Trend Data in CSV Format
Trend logs can be downloaded from the device via FTP in CSV format (see Section 13.1.2).
The CSV contents are generated on-the-fly from the internal binary storage when accessing
the file. Each trend log point has one CSV file. The files are located in
/data/trend/
TrendLogName
_
UID
.csv
Where
TrendLogName
is the data point name of the trend (Trend Name). The
UID
is the
unique ID of the trend log object. The UID can be obtained from the ID column in the data
point list of trend log data points as shown in Figure 148. This would result in the trend
CSV file ‗
/data/trend/out_temp_107C.csv
‘.
Figure 148: UID of data points.
Because the contents are generated on-the-fly, the file size in the FTP client will appear as 0
Bytes. The decimal point and CSV column separator can be configured in the system
configuration of the Web UI (see Section 4.2.1). Note, that for a comma ―,‖ as the
separator, the decimal point is a point. This is useful for English/U.S. applications. For
countries that use the comma as the decimal point, select the semicolon as the CSV
separator.
6.14.5 Deliver Trend Data via E-mail
Trend logs can be downloaded from the device via FTP. This requires an active action by
the user. Alternatively, trend data can be sent as an e-mail attachment. For doing that, an
e-mail template has to be setup for the trend log to be transmitted. The fill-level condition in
the trend object can be used as a trigger to send an e-mail with the trend‘s data logger CSV
file as an attachment.
