How to read/detect ignition signal： IGT signal is automatically detected by MCU. Vg710 already supports obtaining IGT status through flexapi.

How to configure ignition off delay. That seem to be 30s by default.： In Webpage  Services >> 

 Power Management  Ignition Shutdown Delay 

How to disable ignition off in order to keep VG710 awake 24/7.  In Services >>  Power Management   Ignition Shutdown Delay config 0s，IGT will be disable.