Family Table models vs Model Check

[Mat]

Hi there,

I have a frustrating problem with Model Check.

We use screws in our assemblies. Those screw's length is defined by a family table. 

Unfortunately, ModelCheck always checks those screws in the assembly and causes a "is modified". 

Even if I check the assembly with the option "top level".

I already added "IF ( MODELNAME EQ ISO* ) NOCHECK" to condition.mcc 
But no luck. Creo keeps modifying those models nevertheless.

If I open the screw itself and run model check, I get a "nocheck", which I expect. 

BUT Creo list the model as "modified" anyway.

[MartinHanak]

Hi,

just a basic question: Are all FT instances successfully verified and then the generic model saved?

[Mat]

Yes, they look all verified:

[Martin_Hill]

Does your Model Check change the assembly layer settings in any way?

If so, this can propagate down to the parts in the assembly causing them to be modified.

[Mat]

the layers of the assembly or the parts are not changed. 

even more strange, if I change the condition.mcc file and add "IF ( MODELNAME EQ asm0001.asm ) NOCHECK", MC still runs its checks on the model.

I can only convince MC to ignore that model (or run other checks for testing), if I set the condition to "MODELNAME EQ asm0001*"

[Martin_Hill]

There is a difference between MODELNAME (PTC_COMMON_NAME) and FILENAME.

Are you using Windchill?

[Mat]

Yes, I am using Windchill.

I cannot confirm, that MODELNAME corresponds with Common Name. E.g. the assembly, I am testing has a file name "asm0001.asm". But its Common Name is "Housing assembly".

Anyhow, finally I have got ModelCheck to use my testing configs for that model.

Firstly, I tried switching off several config lines. In the end, I just deleted the whole content in the test.mch (checks) and test.mcs (start) files.

But ModelCheck keeps getting modifying the components, which are defined by a family table (no matter that condition.mcc still contains "IF ( MODELNAME EQ ISO* ) NOCHECK".

[Srinivasan-Iyer]

I have taken the following from the Help Documentation

--------

Edit the condition.mcc file in a text editor as follows:

-------

# OVERRIDE CHECKS
# Deliberately exclude the following model types
IF (MODEL_TYPE EQ PRT_SKELETON) NOCHECK
IF (MODEL_TYPE EQ ASM_INTERCHANGE) NOCHECK
IF (MODEL_TYPE EQ ASM_MOLD_LAYOUT) NOCHECK
IF (MODEL_TYPE EQ PRT_PIPE) NOCHECK
IF (MODEL_TYPE EQ PRT_HARNESS) NOCHECK
# Exclude Part Family Table Generics that are not sheet metal
IF (FT_GENERIC_PRT) AND (MODEL_TYPE NE PRT_SHEETMETAL) NOCHECK
# Exclude Assembly Family Table Generics
IF (FT_GENERIC_ASM) NOCHECK

-------------

Also have a look at the following link. They are all interconnected.

https://support.ptc.com/help/creo/creo_pma/r10.0/usascii/#page/model_analysis/modelcheck/skip_models.html# 

[Mat]

a little Update:

That "behaviour" also shows up with other random instances of other family table driven models (e.g. flatten sheetmetal).

BTW, I forgot to mention, that I am running Creo 10.

I tried several things:

• emptying configurations (removing tests from modelcheck)
  I ended up with a completely empty check.mch and start.mcs file.
  That config_init.mc only contained "MC_ENABLE YNA Y" to be able to run modelcheck at all. ModelCheck still modifies those instances.
• I installed Creo 12 and tested Modelcheck again. 
  MC also modifies those instances.
• I also started Creo without any custom config.pro options ( besides modelcheck_dir to point to my testing mc-files).
  Still no luck.
• In an act of desperation, I "downgraded" to Creo 9.
  And there You go. ModelCheck runs as intended!
  

At this time, since all of my configuration file changing attempts were unsuccessful but only switching to Creo 9 worked, I consider this as a bug in Creo Parametric. If it is a bug (please comment, If You can see the same behaviour with Your Creo installation in a Windchill environment), Creo 10 and above are affected.