﻿This parameter defines when the status for the supply voltage is transmitted by the gateway.

*Only on voltage failure*: As soon as a mains power failure is detected at the gateway, the device immediately transmits a status telegram. It stops operation just a few seconds later.

*On voltage failure and return*: As soon as a mains power failure is detected at the gateway, the device immediately transmits a status telegram. It stops operation just a few seconds later. The gateway initialises itself when the mains power supply is switched on. Then it transmits a status telegram once and signals that the mains voltage is switched on.
