Simscape PreCopyFcn prevents simulation running when in referenced model

A colleague has created a Simscape simulation of a Plant using hydraulic components (he has the full suite, I just have Simscape and the associated libraries installed).

I can run his model OK if I treat it as standalone (it runs in Restricted mode). However, when I include his Plant model as a referenced model in a whole system simulation it fails to run:

 Error evaluating 'PreCopyFcn' callback of Check Valve block (mask)

When I open the block's callbacks they are all greyed out so I cannot see the callback. However, I can reveal it programatically :

 >> get_param(gcb, 'PreCopyFcn')

 ans =

 simscape.compiler.sli.internal.callback('PreCopyFcn',gcbh);

So it appears that simply running a referenced model that contains Simscape blocks requires a Copy, and that is a restricted function. But running a simulation containing the same block all by itself is fine... any thoughts on how to overcome this?

PS - I can't even see what happens when I remove the block - Restricted Mode prevents it's deletion too!

PPS - Colleague is on holiday for the next two weeks, so unless I 'administer' his SimHydraulics licence to myself I'm really stuck.

Answer 1

[Yifeng Tang]

Attempt to answer from 10 years later ... lol.

It sounds to me that it's a feature of Simscape and its Add-On libraries working properly. The restricted mode is designed such that a user with Simscape license can run a model created using Add-On libraries, e.g. Simscape Fluids, but cannot modify what is inside the model. Here is a list of thing you can do in the restricted mode vs full mode:

https://www.mathworks.com/help/physmod/simscape/ug/about-the-simscape-editing-mode.html#bq26ch5

Hope this helps.