Tu as essayé de faire un reset de l'interface (http://www.automation.siemens.com/et-sta...-08-06.pdf ) :
The IP Interface can be reset to the default factory settings
by pressing the learning button for more than six
seconds when the operation voltage is turned on. The
transition to the default state is indicated by a blinking
programming LED. All parameter settings are deleted by
this reset action.
The IP Interface can be reset to the default factory settings
by pressing the learning button for more than six
seconds when the operation voltage is turned on. The
transition to the default state is indicated by a blinking
programming LED. All parameter settings are deleted by
this reset action.