Use the HistData Wizard to extract log data
- Last UpdatedMay 29, 2025
- 2 minute read
You can create an output file containing log data that appears in a historical trend. InTouch includes the HistData Wizard to automate the steps to extract data from a log file.
Because the HistData output file writes log data shown in a historical trend, the file can only contain data from the tags currently assigned to the pens of the historical trend.
Use the HistData Wizard to extract log data
-
Start WindowMaker.
-
Open a window that includes a historical trend.
-
On the Draw menu, in the Insert group, select Wizards.
The Wizard Selection dialog box appears.
-
Select the Trends group from the left pane.
-
Select the HistData Wizard icon from the right pane and select OK.
-
Move your mouse pointer over an area of the trend window where you want to place the HistData object.
-
Select to place the HistData object in the trend window. The HistData Wizard creates a window object consisting of a button and the Filename box that shows the path where the output file will be created.
-
Double-click the HistData Wizard object placed in the trend window. The HistData Panel Wizard dialog box appears.
-
In the Hist Trend box, type a name for the HistTrend tag.
-
In the Number of Records to Write per CSV File box, type the number of records to write to an output file.
-
Select OK. The HistData Wizard creates a set of tags that are identified with a HDW prefix.
The HistData Wizard creates the tags listed in Create HistData tags. The HistData Wizard assigns the tags to the HisDataViewSt Access Name.
-
Run the historical trend window with WindowViewer.
-
Select Save to File that is part of the HistData window object. HistData creates the output file in the folder location shown in the window object.
Note: HistData does not populate the .csv file properly if the tag values do not change within an hour of starting InTouch with the newly-created *.idx and *.lgh files.
The HistData data does not have the same resolution as for historical trend scooters. The HistData resolution is based on the number of values requested within the time span. It is not an exact reflection of the values that are in the *.idx and *.lgh files.