A small Python application for making charts from Simatic Basic Panels txt logs, which can be stored on a external USB drive named as Data_log0.txt to Data_logXY.txt . in the format:
"VarName" "TimeString" "VarValue" "Validity" "Time_ms" "Variable1" "2012-01-03 22:41:14" 0.000000 1 40911945303.865738 "Variable2" "2012-01-03 22:41:14" 0.000000 1 40911945303.935188 ...
Also, it can read binary DTL files stored by Weintek panels.
This program requires Python 3.6+ and uses matplotlib to draw the charts.