Adapter for connecting an embedded system to a control computer, and method for adapting an adapter

A method for adapting an adapter, wherein the adapter has a standard interface, a first subcircuit, and a second subcircuit, the first subcircuit being designed to communicate with a control computer via the standard interface via a standard protocol, wherein the first subcircuit is connected to the second subcircuit via an internal interface, wherein the second subcircuit has a user-selectable or adaptable individual interface, wherein the second subcircuit comprises a programmable logic device and/or a microcontroller, the first subcircuit comprising a programmable logic device and a non-volatile memory in which a fixed configuration of the programmable logic device is stored, the method comprising:

• converting, via the first subcircuit, a protocol functionality requested in the standard protocol via the standard interface out of a set of supported protocol functionalities into the call for one or more elementary functions out of a defined overall set of elementary functions;
• implementing, via the second subcircuit at least one elementary function out of the defined overall set of elementary functions, the implementation of the at least one elementary function being created by a user on the basis of a library comprising a plurality of parameterizable elementary functions;
• and
• selecting at least one parameter of the at least one elementary function individually by the user and/or adding at least one action of the elementary function by the user.