A method for implementing at least one additional function of a field device in automation technology, wherein the field device is parametered and/or configured via a servicing device using a device description, wherein the method has the following method steps: the original device description, which comprehensively describes the field device, is made available; the original device description is expanded by a script or a supplemental device description fragment; wherein the script or the device description fragment comprehensively describes the additional function; and the field device is serviced from the servicing device by means of the expanded device description and is able to execute the additional function.
