The log files can be very helpful to investigate some issues. They are required by the PWB supplier if we need to contact it.

Working with the PWB logs should be rather transparent for your daily work with CATIA & PWB.
However, logs with level 1 or 3 can have a huge impact on the performances.

By default, and unless other recommendations from the CAD / PLM Support team, only activate level 2.
See the dedicated How To for the activation.

Each time CATIA/PWB starts, a new log file is created in the cache folder ("C:\CERNPLM\prod\catia\USERLOGIN\_output.log"),

The log file is filled from the actions you do in CATIA.
As long as CATA is running, the log file is under edition.
In case you have an issue with CATIA/PWB, first close CATIA (if still running), then go to C:\CERNPLM\prod\catia\USERLOGIN and sort the files per type.
Create a zip file with all files which are not CAD files (basically, exclude all CATProduct, CATPart, CATDrawing & CGR files, and consider the . log, .xml, .txt & .csv).

Only after the zip file is created, you can restart a new CATIA session.

Attention: if you restart CATIA before to collect the log files, they will be replaced by new empty ones.

Once you have the zip file will all the logs, send it to PLM Support (Service Now request) with a detailed description of your issue and your PC Name.

In case you had a CATIA crash ("Click OK to Terminate" message, or simply CATIA disappeared), please add the CATIA log file too.

This log file from CATIA is located here : C:\Users\%username%\AppData\Local\DassaultSystemes\CATTemp\

The file name is "Abend_Trace_ ... .txt" and is created at the time of the crash.