FDS/OPC Integration
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5.11
History Export
5.11.1
Long-Term History
The long-term history function enables you to collect and store data in well-defined recording
intervals. The minimum and maximum values of each measured value within the recording
interval are stored as 1 data set. Recording intervals can range from 4 hours up to 7 days.
Defining the Recording Interval
In order to define the recording interval for the long-term history, proceed as follows:
1.
Right-click the
Advanced Diagnostic Module
in the project section.
2.
Choose
Parameter > Online Parameterization
.
3.
Select the required recording interval from the
Long-term History
drop-down list in the device
settings section.
Figure 5.53 Long-term history drop-down list with different intervals
4.
Choose
Apply
to confirm changed settings.
5.11.2
Export History
The export function enables you to convert the long-term history data into a commonly used
document format, in order to use this data for your own calculations. The long-term history can
be exported as Microsoft
®
Excel document, comma-separated values (CSV file), or binary his
-
tory file (HIS).
Exporting the History Data
In order to export the long-term history data, proceed as follows:
1.
Right-click the
Advanced Diagnostic Module
in the project section.
2.
Choose
Additional Functions > History Export
.
3.
Select the segment and choose
Start
.
4.
Select the required file format in the
Export Type
section and enter a file name in the
Filename
field.
Note
The data storage is limited to 100 data sets. New data sets will overwrite existing ones, i.e., data
set 101 overwrites data set 1.
Depending on the defined recording interval, the long-term history can range from 17 days (4 h
* 100 = 400 h = approx. 17 days) up to approx. 2 years.
