2016.11.14 18:11:31 1: PERL WARNING: substr outside of string at ./FHEM/47_OBIS.pm line 737.
2016.11.14 18:11:31 1: PERL WARNING: Use of uninitialized value $msg in substr at ./FHEM/47_OBIS.pm line 751.
2016.11.14 18:11:31 1: PERL WARNING: Use of uninitialized value $msg in substr at ./FHEM/47_OBIS.pm line 753.
2016.11.14 18:11:31 1: PERL WARNING: Use of uninitialized value $v2 in substitution (s///) at ./FHEM/47_OBIS.pm line 525.