Before the control is shipped to the end user, the feature content level of
the NC software must be set.

Load the NC software intended for the control shipment and then, under MOD,
enter the keyword "SIK". Enter the option number "53" and confirm the
value "0" as key. This sets the feature content level. Once set, the feature
content level cannot be changed unless a new key for the option #53 is entered.
HEIDENHAIN can provide the correct key for the control's SIK number and
NC software number.

After the displayed number of new start-ups, the control will automatically
set the value of the currently loaded NC software.