Gracefully handle upper case characters in name of station

In the profinet core, two kinds of name of station handling are observed. Sometimes the name of station values are converted lowercase implicit (e.g. DCP) while in other places the values are keept as is (e.g. records) This might lead to inconsistency e.g. in REM _CHK statemachine.

The implementation should be unified such that name of station values are converted lowercase implicitly where used.