Elapsed-hour meter and power-on time meter are always displayed in case of 24-V supply
Function extension:
The elapsed-hour meter and the power-on time meter are stored in the retain data area of the ControlUnit and can always be read out via the corresponding codes with an external 24-V supply voltage.
In firmware < V16.00.00 the value of the codes was set to 0 when the BaseUnit was not supplied.
