System dependant cases? [1 project for myRIO and cRIO without code changes]

[1hdsquad]

Im working on a project with Realtime and FPGA that can be run on the myRIO or a cRIO with appropriate I/O-modules. Lets say Im working on myRIO and everything is running fine. Now when I want to test it on the cRIO I need to change the specific I/O-constants and a few details (like conversion from fxp to int because the input module uses a different data type).
Of course all of that needs to be done in reverse order when Im switching back.

What Im looking for is a case structure or something that checks the system its running on during compile time and uses the appropriate case (which simply could contain the correct I/O-constant for that system). That way I could create a project for every system, use the same VIs and when the code is running or compiling its automatically choosing the correct IOs.

[In C one probably would do something like this:

#if defined (__AVR_ATmega16__)
...
#elif
...
#endif

 ]
Do you know of something that could help me?

[crossrulz · Accepted solution]

Look at the Conditional Diagram Disable Structure.  I am not completely sure it will do exactly what you are asking for (not sure how specific the target variables are), but it is the closest thing.

[1hdsquad]

Thank you, that seems to be what I was looking for!
So for example I would use the Conditional Diagram Disable Structure, use 'FPGA_TARGET_CLASS' as condition and then I could switch between 'MYRIO_1900' or 'CRIO_9038'. Is that correct?

[crossrulz]

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@1hdsquad wrote:

Thank you, that seems to be what I was looking for!
So for example I would use the Conditional Diagram Disable Structure, use 'FPGA_TARGET_CLASS' as condition and then I could switch between 'MYRIO_1900' or 'CRIO_9038'. Is that correct?

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That sounds right.  I have not done that myself.  I mostly just use the Run_Time_Engine == TRUE with the CDDS.