Orphaned Blocks

General Discussion

What is an "orphaned" block, how to the happen and how to I fix them?

Generally speaking, orphans occur when we attempt to lookup information about a block from the database and the information cannot be found.

This can occur for several reasons:

1. The project has been moved without using the Packup/Unpack process.
2. The data was deleted from the database.
3. Multiple instances of the requested data are found. This can be the result of duplicate entries in the database.
4. In the case of a SysName lookup the SysName and Location fields are not found to match.

Orpahned blocks occur when we create custom equpment definitions, use those equipment definitions to create blocks,  and subsequently remove the equipment definition from the database.