View the data log in a narrow format
- Last UpdatedFeb 25, 2025
- 2 minute read
To view the data log
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On the View menu, click Logs, and then select Narrow. The Data log dialog box appears.

Data appears for the following columns:
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Time
The time stamp for the returned value. For delta retrieval, this is the time at which the value was acquired by the Historian. For cyclic retrieval, this is the specific time requested or calculated (using a SQL function).
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Tag Name
The name of the tag within the Historian server. The attribute reference is displayed as a tag name for data values from application server. For application server attributes, you can also choose to show the hierarchical name along with the attribute reference.
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Server
The server from which data is being retrieved.
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Value
The value of the tag at the time stamp.
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Quality
The basic data quality indicator associated with the data value.
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To include only the data that is between the time axis cursors on the chart, on the Options menu, click Data From Between Cursors.
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To include all of the data on the chart, on the Options menu, click Data From Between Graph Start/End.
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To show actual values for discrete tags (for example, 1 or 0), on the Options menu, click Show Actual Values For Discretes. When retrieving data for discrete tags in ValueState mode, you must select this option to see correct time-in-state information.
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To show messages for discrete tags (for example, ON or OFF), on the Options menu, click Show Messages For Discretes.
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You can copy and paste data to the Windows clipboard by right-clicking in the data and selecting the appropriate option from the menu that appears.
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To save the data as a .csv file, on the File menu, click Save As.
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To set up a printout of the data, on the File menu, click Page Setup. Setting up the page works like in any other Windows application.
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To preview a printout of the data, on the File menu, click Print Preview. Using the preview window works like in any other Windows application.
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To print the data, on the File menu, click Print. Specifying printing options works like in any other Windows application.
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To exit the dialog box, on the File menu, click Exit. Or, click the Close button.