The Columns section defines the format of the columns in the external data source. It is structured as follows:
[Columns]
External column name 1 = column width -> data type
External column name 2 = column width -> data type
..
External column name n = column width -> data type
The only restriction that CitectSCADA places on the data for External Column name n is that it needs to be unique within the section. For convenience, you can use the names that the external data source uses (such as "Description", "PLC_id", "Iotype") or you can just make up names like "Column1", "Column2", etc. The order in which these entries appear needs to be the same as the order of the fields in the external data source. The names used for the External Data Source columns in the [ImportFilterMap] and [ExportFilterMap] sections needs to come from this list.
Column width is the number of characters in the field, and data type is the type of data for that column. Currently the only acceptable data type is "STRING".