In the CODESYS IDE, I pulled in device data from a new Groov with MM1001, IMA, IRTD, and OMRIS modules. The IMA, IRTD, and OMRIS modules populated with variables as expected.
Under the I/O Mapping tab, the MM1001 module doesn’t have a variable table at all - just “Bus Cycle Options”. I can’t figure out any way to access it in the POU.
When it comes to CoDeSys, documentation is always limited or unavailable. It’s a little better if you speak German, but still, it’s vague.
Forums are always going to be your first line of defense.