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

*second counter*: The actuator adds up the determined switch-on time accurately to the second for a switched-on valve output. The totaled operating seconds are added in a 4-byte counter and stored permanently in the device. The current meter reading can be transmitted cyclically to the KNX by the "Operating hours counter - Meter reading - Status" communication object or when there is a change in an interval value in accordance with DPT 13.100.

*hour counter*: The actuator adds up the determined switch-on time accurately to the minute for a switched-on valve output in full operating hours. The totalled operating hours are added in a 2-byte meter and stored permanently in the device. The current meter reading can be transmitted cyclically to the KNX by the "Operating hours counter - Meter reading - Status" communication object or when there is a change in an interval value in accordance with DPT 7.007. Once the operating hours counter is enabled, however, the operating hours will be determined and added up by the ETS immediately after commissioning the actuator.
