typedef struct {
    unsigned char RecordType;
    unsigned char DataLength;
    unsigned char DataType;
    unsigned char DataDir;
    float ParmMin;
    float ParmMax;
    short ParmAddr;
    char UnitString[HM2_SSERIAL_MAX_STRING_LENGTH+1];
    char NameString[HM2_SSERIAL_MAX_STRING_LENGTH+1];
}hm2_sserial_data_t;