About field codes

A field code is a special string of text in a Microsoft Word document that includes instructions for data processing. Field codes can process data from inside the same document or from external sources. For the AVEVA Historian Client Report, field codes are used to contain the instructions for retrieving data from the database and returning the results to the report document.

Field codes are present in report templates and report documents that have not yet been run.

The following graphic shows how field codes appear when turned on and before the report document has been run. Field codes appear between the curly brackets { }.

In the following graphic, the field codes are hidden. For more information on showing or hiding the field codes, see Showing/Hiding Field Codes.