In a method for testing device descriptions for field devices of automation technology, a finite state machine is produced from a device description to serve as a basis for a test script. The fixing member is a peripherally closed medium to thickwalled tubular member, at least in part radially deformed and of uniform wall thickness having an axial passageway extending through it. Movement of the subsystem causes the MICR read head to pass over the magnetic ink character data on the document. The inspector completes the form following examination of the product to be verified and then transmits the completed form to the central location. Each controller is capable of transmitting one or more signals that are superimposed onto the low-frequency low-voltage waveform and include information identifying a destination controller that the signals are intended for. The port is fluidly connected to the first chamber and the second chamber.