Thank for your question
Ignition ON counter scenario depends on configured ignition source. It will count Ignition ON (logic 1) time (in seconds). After ignition is turned OFF and later turned ON again, Ignition On counter value will continue counting (from the last value). Value of the ignition counter is saved to internal memory, so that it would remain the same value between device startups. It will only reset when counter value gets to the max value(2147483647).