diff --git a/FHEM/10_FS20.pm b/FHEM/10_FS20.pm
index 48e451275..614ad7f27 100755
--- a/FHEM/10_FS20.pm
+++ b/FHEM/10_FS20.pm
@@ -334,7 +334,7 @@ FS20_Parse($$)
   }
 
   my $v = $codes{$cde};
-  $v = "unknown:$cde" if(!defined($v));
+  $v = "unknown_$cde" if(!defined($v));
   $v .= " $dur" if($dur);
 
   my $def = $defptr{"$dev $btn"};
@@ -360,7 +360,7 @@ FS20_Parse($$)
     my $btn_four = hex2four($btn);
     Log 3, "FS20 Unknown device $dev ($dev_four), Button $btn ($btn_four) Code $cde ($v), " .
     	   "please define it";
-    return "UNDEFINED FS20 $dev/$btn/$cde";
+    return "UNDEFINED FS20: $dev/$btn/$cde";
   }
 
 }
diff --git a/FHEM/11_FHT.pm b/FHEM/11_FHT.pm
index a1ceaa431..f6ff60430 100755
--- a/FHEM/11_FHT.pm
+++ b/FHEM/11_FHT.pm
@@ -320,7 +320,7 @@ FHT_Parse($$)
 
   if(length($cde) < 6) {
     Log GetLogLevel($name,2), "FHT Unknown code from $name : $cde";
-    $def->{CHANGED}[0] = "unknown code $cde";
+    $def->{CHANGED}[0] = "unknown_$cde";
     return $name;
   }
 
@@ -346,7 +346,7 @@ FHT_Parse($$)
 
   if(!$cmd) {
     Log 4, "FHT $name (Unknown: $cde => $val)";
-    $def->{CHANGED}[0] = "unknown $cde: $val";
+    $def->{CHANGED}[0] = "unknown_$cde: $val";
     return $name;
   }
 
@@ -375,12 +375,12 @@ FHT_Parse($$)
     my $fv = sprintf("%d%%", int(100*$val/255+0.5));
 
        if($sval =~ m/.6/) { $val = "$fv" }
-    elsif($sval =~ m/.8/) { $val = "offset $fv" }
+    elsif($sval =~ m/.8/) { $val = "offset: $fv" }
     elsif($sval =~ m/.a/) { $val = "lime-protection" }
     elsif($sval =~ m/.c/) { $val = "synctime" } 
     elsif($sval =~ m/.e/) { $val = "test" }
     elsif($sval =~ m/.f/) { $val = "pair" }
-    else { $val = "Unknown: $sval = $fv" }
+    else { $val = "unknown_$sval: $fv" }
 
   } elsif($cmd eq "lime-protection") {
     $val = sprintf("(actuator: %02d%%)", int(100*$val/255 + 0.5));
@@ -525,6 +525,7 @@ getFhtBuffer($)
   for(;;) {
     FHZ_Write($io, "04", "c90185");
     my $msg = FHZ_ReadAnswer($io, "fhtbuf");
+    if(!defined($msg)) { $msg= ""; }
     Log 5, "getFhtBuffer: $count $msg";
   
     return hex(substr($msg, 16, 2)) if($msg && $msg =~ m/^[0-9A-F]+$/i);
diff --git a/contrib/dblog/93_DbLog.pm b/contrib/dblog/93_DbLog.pm
index 1af522b43..ba14683b6 100755
--- a/contrib/dblog/93_DbLog.pm
+++ b/contrib/dblog/93_DbLog.pm
@@ -123,13 +123,47 @@ DbLog_ParseEvent($$)
   }
   # FHT 
   elsif($type eq "FHT") {
+     if($reading =~ m(-from[12]\ ) || $reading =~ m(-to[12]\ )) {
+	@parts= split(/ /,$event);
+	$reading= $parts[0];
+	$value= $parts[1];
+	$unit= "";
+     }
      if($reading =~ m(-temp)) { $value=~ s/ \(Celsius\)//; $unit= "°C"; }
      if($reading =~ m(temp-offset)) { $value=~ s/ \(Celsius\)//; $unit= "°C"; }
-     if($reading eq "actuator") { 
+     if($reading =~ m(^actuator[0-9]*)) { 
 		if($value eq "lime-protection") {
 			$reading= "actuator-lime-protection";
 			undef $value;
 		}
+		elsif($value =~ m(^offset:)) {
+			$reading= "actuator-offset";
+     			@parts= split(/: /,$value);
+			$value= $parts[1];
+			if(defined $value) {
+				$value=~ s/%//; $value= $value*1.; $unit= "%";
+			}
+		}
+		elsif($value =~ m(^unknown_)) {
+    			@parts= split(/: /,$value);
+			$reading= "actuator-" . $parts[0];
+			$value= $parts[1];
+			if(defined $value) {
+				$value=~ s/%//; $value= $value*1.; $unit= "%";
+			}
+		}
+		elsif($value eq "synctime") {
+			$reading= "actuator-synctime";
+			undef $value;
+		}
+		elsif($value eq "test") {
+			$reading= "actuator-test";
+			undef $value;
+		}
+		elsif($value eq "pair") {
+			$reading= "actuator-pair";
+			undef $value;
+		}
 		else {
 			$value=~ s/%//; $value= $value*1.; $unit= "%"; 
 		}
@@ -198,6 +232,10 @@ DbLog_Log($$)
       my $reading= $r[0];
       my $value= $r[1];
       my $unit= $r[2];
+      if(!defined $reading) { $reading= ""; }	
+      if(!defined $value) { $value= ""; }	
+      if(!defined $unit) { $unit= ""; }	
+	
 
       my $is= "(TIMESTAMP, DEVICE, TYPE, EVENT, READING, VALUE, UNIT) VALUES " .
          "('$ts', '$n', '$t', '$s', '$reading', '$value', '$unit')";