For class mapping, there are two different sheets. BaseClassMapping and LeafClassMapping.

Base Class Mapping

The BaseClassMapping worksheet contains a list of all the AVEVA P&ID item types "Ax Root Classes" (PID Type-s), and corresponding OpenPlant classes. Values in the column OpenPlant "Class" can be changed.

Symbols of both AVEVA P&ID 2008 and AVEVA P&ID 2016 are collected in one table. For other AVEVA versions, the table can be extended. If a class was defined in AVEVA P&ID 2008, it is also defined in later versions so the later versions only contain additional classes. The definitions used for these are found in the Pid.Prj file of the AVEVA P&ID Project.

Leaf Class Mapping

The LeafClassMapping worksheet is based on the AVEVA P&ID "Symbol name" and OpenPlant "Class Name". "Symbol names" and other AVEVA P&ID column values are obtained from the Pid.Sym file of the AVEVA P&ID Project. They can be helpful for the mapping.