FHEM Cobraball

############################
# Display the Water temperature and burner runtime values.
# Corresponding FileLog definition:
# define KM271 FileLog /var/log/fhem/km271-%Y.log KM271

set readonly
set terminal png transparent size <SIZE> crop
set output '<OUT>.png'
set xdata time
set timefmt "%Y-%m-%d_%H:%M:%S"
set xlabel " "
set ytics nomirror
set y2tics
set title '<L1>'
set grid

set y2label "Temperature in C"
set format y "%0.1f"
set ylabel "Minutes"
set yrange [0:]

#FileLog 4:WW_Isttemperatur:0:
#FileLog 4:Brenner_Laufzeit1_Minuten\x3a:0:delta-h

plot "<grep WW_Isttemperatur <IN>" using 1:4 axes x1y2 ls l0 title 'WW-Temp' with lines,\
     "<grep Brenner_Laufzeit1_Minuten: <IN> | perl -ane '\
        @a = split(\"[_:]\", $F[0]);\
        if(defined($lh) && $lh ne $a[1])\
          { printf(\"${ld}_$lh:30:00 %f\n\", $hv); $hv = 0; }\
        if($lv) { $hv += ($F[3]-$lv); }\
        $lh = $a[1]; $ld = $a[0]; $lv = $F[3];\
        END { printf(\"${ld}_$lh:30:00 %f\n\", $hv) }'"\
     using 1:2 axes x1y1 ls l6fill title 'Runtime/h (Min)' with histeps