RtLevel was not set on restart plc program after crash
Software watchdog will restart plc program, if it does not toggle core.wd
in the configured time. It is the same bit and function as on connect
device to trigger hardware watchdog (bit 7 in RevPiLED).
You can set reset_driver_action in revpipyload.conf to 0, 1, 2
0=do nothing
1=Restart PLC program only if piCtory config was changed
2=Always restart PLC program after pressing "Reset Driver" (default)
(will not work on old wheezy)
close#1
