Spyker,
The process involves Publishing the i-model from within PowerPID - i know you did this so just bear with me.
1. Publish the i-model the data should be there. If it is not make sure that all paths in the config files specifically the path for the OpenPlant_PID schema for publish is valid and the system is able to access this location.
2. In OpenPlant Modeler use the reference command to reference in the i-model.
3. Procede from this point as defined in the document below.
This document was a primer class on the use of 2D to 3D that I gave at the Bentley LEARNing conference. This assumes OpenPlant PowerPID SELECTseries 5 version 08.11.10.38 and OpenPlant Modeler SELECTseries 5 version 08.11.09.278.
[View:http://communities.bentley.com/cfs-file.ashx/__key/CommunityServer-Discussions-Components-Files/5927/0601.PLOP2WK1.pdf:550:0]
Tony