1. A field device of process automation technology having a plurality of parameters, with each of which is associated a device-internal parameter address, the field device being connectable to a fieldbus having a fieldbus-specific parameter addressing system, including: means for providing a generic mathematical function, wherein: the device-internal parameter addresses of the plurality of parameters are determinable by application of the generic mathematical function to associated fieldbus-specific parameter addresses formed according to the fieldbus-specific parameter addressing system; the application of the mathematical function is performed by a correspondingly embodied piece of software which is implemented in a microprocessor; and as a result of the application of the generic mathematical function the device internal parameter address is received.