From bfdaba7321da2e61a870a779cb0cbb249648622c Mon Sep 17 00:00:00 2001
From: tupol <>
Date: Sat, 13 May 2017 13:08:31 +0000
Subject: [PATCH] LUXTRONIK2: bugfix

git-svn-id: https://svn.fhem.de/fhem/trunk/fhem@14271 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 FHEM/23_LUXTRONIK2.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/FHEM/23_LUXTRONIK2.pm b/FHEM/23_LUXTRONIK2.pm
index 9b314e7b3..6374da682 100644
--- a/FHEM/23_LUXTRONIK2.pm
+++ b/FHEM/23_LUXTRONIK2.pm
@@ -1409,7 +1409,7 @@ sub LUXTRONIK2_synchronizeClock (@)
   my $delay = 0;
   my $returnStr = "";
 
-  $maxDelta = 60 unless $maxDelta >= 0;
+  $maxDelta = 60 unless defined $maxDelta || $maxDelta >= 0;
   $maxDelta = 600 unless $maxDelta <= 600;
          
    LUXTRONIK2_Log $name, 5, "Open telnet connection to $host";