diff --git a/fhem/FHEM/10_CUL_HM.pm b/fhem/FHEM/10_CUL_HM.pm
index 2ccf08d50..d5a51e632 100755
--- a/fhem/FHEM/10_CUL_HM.pm
+++ b/fhem/FHEM/10_CUL_HM.pm
@@ -217,7 +217,7 @@ sub CUL_HM_updateConfig($){
 
     my $st  = CUL_HM_Get($hash,$name,"param","subType");
     my $md  = CUL_HM_Get($hash,$name,"param","model");
-    if ("HM-CC-TC" eq $md){
+    if ($md =~ /(HM-CC-TC|HM-CC-RT-DN)/){
 	  $hash->{helper}{role}{chn} = 1 if (length($id) == 6); #tc special
 	  $attr{$name}{stateFormat} = "last:trigLast" if ($chn eq "03");
 	}
@@ -2985,7 +2985,7 @@ sub CUL_HM_Set($@) {
 	  my $pHash = CUL_HM_id2Hash($peer);
 	  my $peerFlag = $peer eq '00000000'?'A4':CUL_HM_getFlag($pHash);
 	  $peerFlag =~ s/0/4/;# either 'A4' or 'B4'
-      CUL_HM_SndCmd($hash, "++B412$dst".substr($peer,0,6_)) 
+      CUL_HM_SndCmd($hash, "++B412$dst".substr($peer,0,6)) 
 	         if (CUL_HM_getRxType($pHash) & 0x80);
       CUL_HM_SndCmd($hash, sprintf("++%s41%s%s%02X%02X%02X"
 	                 ,$peerFlag,$dst,$peer
diff --git a/fhem/FHEM/98_HMinfo.pm b/fhem/FHEM/98_HMinfo.pm
index d5e567f0d..e138bc273 100644
--- a/fhem/FHEM/98_HMinfo.pm
+++ b/fhem/FHEM/98_HMinfo.pm
@@ -234,9 +234,10 @@ sub HMinfo_SetFn($@) {#########################################################
   }
   elsif($cmd eq "clear" )     {##actionImmediate: clear parameter--------------
     my ($type) = @a;
-	$opt .= "d" if ($type ne "Readings");# readings apply to all, others device only
+	$opt .= "d" if ($type !~ m/(readings|register)/);# readings apply to all, others device only
 	my @entities;
-	return "unknown parameter - use Protocol,readings or rssi" if ($type !~ m/^(Protocol|readings|rssi)$/);
+	return "unknown parameter - use Protocol, readings, register or rssi" 
+	      if ($type !~ m/^(Protocol|readings|register|rssi)$/);
 	$type = "msgEvents" if ($type eq "Protocol");# translate parameter
 	foreach my $dName (HMinfo_getEntities($opt."v",$filter)){
 	  push @entities,$dName;
@@ -504,8 +505,9 @@ sub HMinfo_SetFn($@) {#########################################################
 		   ."\n ---clear status---"                    
 	       ."\n clear [<typeFilter>] [Protocol|Readings|Rssi]"       
 	       ."\n       Protocol     # delete all protocol-events"       
-	       ."\n       Readings     # delete all readings"       
-	       ."\n       Rssi         # delete all rssi data"       
+	       ."\n       readings     # delete all readings"       
+	       ."\n       register     # delete all register-readings"       
+	       ."\n       rssi         # delete all rssi data"       
 		   ."\n ---help---"                    
 	       ."\n help                            #"       
 		   ."\n ***footnote***"
diff --git a/fhem/FHEM/HMConfig.pm b/fhem/FHEM/HMConfig.pm
index 6a3d0a7b7..4db69ba14 100644
--- a/fhem/FHEM/HMConfig.pm
+++ b/fhem/FHEM/HMConfig.pm
@@ -1031,6 +1031,8 @@ my %culHmChanSets = (
 		              ,on             =>""
 					  ,off            =>""
 					  ,toggle         =>""},
+  "HM-CC-RT-DN00"  =>{ sysTime        =>""},
+  "HM-CC-RT-DN02"  =>{ sysTime        =>""},
   "HM-CC-RT-DN04"  =>{ mode           => "[auto|manu|party|boost|comfort|lower] ... <temp> <startTime> <endTime>"
                       ,tempListSat    =>"HH:MM temp ..."
                       ,tempListSun    =>"HH:MM temp ..."
@@ -1040,6 +1042,7 @@ my %culHmChanSets = (
                       ,tempListWed    =>"HH:MM temp ..."
                       ,tempListFri    =>"HH:MM temp ..."
 					  ,"desired-temp" =>"[on|off|5.0..30.0]"
+					  ,sysTime        =>""
                      },
   "HM-CC-RT-DN05"  =>{ peerChan       =>" 0 <actChn> ... [single] [set|unset] [actor|remote|both]"},
 );