typedef enum {
    MPISercosErrorGroupINVALID,

    MPISercosErrorGroupGENERAL,
    MPISercosErrorGroupIDN,
    MPISercosErrorGroupNAME,
    MPISercosErrorGroupATTR,
    MPISercosErrorGroupUNIT,
    MPISercosErrorGroupMIN,
    MPISercosErrorGroupMAX,
    MPISercosErrorGroupOP,

} MPISercosErrorGroup;

When an error occurs, SercosErrorGroup defines what part of the IDN field has the error.