The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 2018
Filed:
Jan. 19, 2018
Festo Ag & Co. KG, Esslingen, DE;
Martin Wiesner, Ostfildern, DE;
Steffen Wunderlich, Aichtal, DE;
FESTO AG & CO. KG, Esslingen, DE;
Abstract
A communication device for a field device for transferring output information to a controller, including a passive digital output with a first connection point and a second connection point, a circuit arrangement connected between the first connection point and the second connection point, and a control device configured to selectively put the circuit arrangement into one of a plurality of switching states according to the output information to be transferred. The communication device is configured, in a state in which the passive digital output is connected to the controller, to provide an electric output signal with a first signal value according to a first communication protocol at the connection points in a first switching state of the circuit arrangement and to provide the electric output signal with a second signal value according to the first communication protocol at the connection points in a second switching state of the circuit arrangement. The communication device is also configured to provide the electric output signal with a signal value according to a second communication protocol at the connection points in a third switching state of the circuit arrangement.