﻿The operating hours counter can either be configured as a second counter or alternatively as an hour counter.

*Seconds*: The gateway adds the determined switch-on time for a switched-on group or single device to the second. The totalled operating seconds are added in a 4-byte counter and stored permanently in the device. The current counter reading can be transmitted cyclically to the KNX by the "Operating hours counter - Counter reading - Status" communication object or when there is a change in an interval value in accordance with DPT 13.100.

*Hours*: The gateway adds up the determined switch-on time for a switched-on group or single device to full operating hours to the minute. The totalled operating hours are added in a 2-byte counter and stored permanently in the device. The current counter reading can be transmitted cyclically to the KNX by the "Operating hours counter - Counter reading - Status" communication object or when there is a change in an interval value in accordance with DPT 7.007.
