mshamsan пишет:So, in this my case, will licenses for the 2 additional units of Wialon Retranslator be charged?
Correct. With the ON/OFF switches (ignition sensor), that is the only option atm, because the system has only one counter for engine hours. It utilizes the sensor, that was created first.
With some workarounds, you may get non-accumulating sensors, e.g. create a Counter sensor with (time-#time)/const3600 parameter and Instant type. For that sensor use one of the ignition sensor as the validator with the Multiply validation type. The goal is to make that Counter sensor show values when only one of the ignition sensor is ON, and show 0 when it is OFF.
Create such sensors for each ignition, then execute the Counter sensor report. You should get a non-accumulated value for each counter, but in terms of the report you will still get a summarized value -- e.g. on Monday first engine worked for 2 hrs, second for 3.4hrs, and third for 5 hrs (each working interval will be available as well).