diff --git a/fhem/FHEM/01_FHEMWEB.pm b/fhem/FHEM/01_FHEMWEB.pm
index 5b52c101b..a0fa4cf8b 100755
--- a/fhem/FHEM/01_FHEMWEB.pm
+++ b/fhem/FHEM/01_FHEMWEB.pm
@@ -1320,17 +1320,31 @@ FW_readgplotfile($$$)
   open(FH, $gplot_pgm) || return (FW_fatal("$gplot_pgm: $!"), undef);
   while(my $l = <FH>) {
     $l =~ s/\r//g;
+    my $plotfn = undef;
     if($l =~ m/^#FileLog (.*)$/ &&
        ($wltype eq "fileplot" || $wl eq "FileLog")) {
-      push(@filelog, $1);
+      $plotfn = $1;
     } elsif ($l =~ m/^#DbLog (.*)$/ && 
        ($wltype eq "dbplot" || $wl eq "DbLog")) {
-      push(@filelog, $1);
+      $plotfn = $1;
     } elsif($l =~ "^plot" || $plot) {
       $plot .= $l;
     } else {
       push(@data, $l);
     }
+    
+    if($plotfn) {
+      my $specval = AttrVal($wl, "plotfunction", undef);
+      if ($specval) {
+        my @spec = split(" ",$specval);
+        my $spec_count=1;
+        foreach (@spec) {
+          $plotfn =~ s/<SPEC$spec_count>/$_/g;
+          $spec_count++;
+        }
+      }
+      push(@filelog, $plotfn);
+    }
   }
   close(FH);
 
diff --git a/fhem/FHEM/98_weblink.pm b/fhem/FHEM/98_weblink.pm
index e9ed0e0c4..e82c9c84e 100755
--- a/fhem/FHEM/98_weblink.pm
+++ b/fhem/FHEM/98_weblink.pm
@@ -12,7 +12,7 @@ weblink_Initialize($)
   my ($hash) = @_;
 
   $hash->{DefFn} = "weblink_Define";
-  $hash->{AttrList}= "fixedrange plotmode plotsize label title htmlattr";
+  $hash->{AttrList}= "fixedrange plotmode plotsize label title htmlattr plotfunction";
 }
 
 
@@ -45,7 +45,7 @@ weblink_Define($$)
   <a name="weblinkdefine"></a>
   <b>Define</b>
   <ul>
-    <code>define &lt;name&gt; weblink [link|fileplot|image|iframe|htmlCode]
+    <code>define &lt;name&gt; weblink [link|fileplot|dbplot|image|iframe|htmlCode]
                 &lt;argument&gt;</code>
     <br><br>
     This is a placeholder used with webpgm2 to be able to integrate links
@@ -60,6 +60,7 @@ weblink_Define($$)
       <code>define hr weblink htmlCode &lt;hr&gt</code><br>
       <code>define w_Frlink weblink htmlCode { WeatherAsHtml("w_Frankfurt") }</code><br>
       <code>define MyPlot weblink fileplot &lt;logdevice&gt;:&lt;gnuplot-file&gt;:&lt;logfile&gt;</code><br>
+      <code>define MyPlot weblink dbplot &lt;logdevice&gt;:&lt;gnuplot-file&gt;</code><br>
     </ul>
     <br>
 
@@ -133,7 +134,28 @@ weblink_Define($$)
     <li>title<br>
       A special form of label (see above), which replaces the string &lt;TL&gt;
       in the .gplot file. It defaults to the filename of the logfile.
-      </li>
+    </li>
+
+    <a name="plotfunction"></a>
+    <li>plotfunction<br>
+      Space value separated list of values. The value will be used to replace
+      &lt;SPEC#&gt; type of strings in the .gplot file, with # beginning at 1
+      (&lt;SPEC1&gt;, &lt;SPEC2&gt;, etc.) in the #FileLog or #DbLog directive.
+      With this attribute you can use the same .gplot file for multiple devices
+      with the same logdevice.
+      <ul><b>Example:</b><br>
+        <li>#FileLog <SPEC1><br>
+            with: attr <weblinkdevice> plotfunction "4:IR\x3a:0:"<br>
+            instead of<br>  
+            #FileLog 4:IR\x3a:0:
+        </li>
+        <li>#DbLog <SPEC1><br>
+            with: attr <weblinkdevice> plotfunction "Garage_Raumtemp:temperature::"<br>
+            instead of<br>
+            #DbLog Garage_Raumtemp:temperature::
+        </li>
+      </ul>
+    </li>
 
   </ul>
   <br>