(This report will not be generated for DBDOC versions 10.4 or later.)
A trend block (function code 66 or function code 179) that has no tag cannot be fetched from the controller. If your system has a trend database, check the TRENDTAG field in FC066.dbf (in the Exports folder of your project files). There should be a database entry for the trend block.
--Scanning drawing 1450301: Coal Silo Level Trend block Module 1,45,03 Block 7690 FC 66 is not referenced by any database trend tags.
This error can be built directly into Hyperview. For more information, see the article Building error reports into the M14.