Festo Ag & Co. Kg

Man Truck & Bus Se.

Martin Wiesner

Steffen Wunderlich

Ante Cobanov

Ralf Blumentritt

Manuel Braun

Sören Lenz

Felix Magnus

Alexa Englert

Moritz Bernhardt

Peter Frilling

Alex Albers

Lucas Peter Foertig

Laura Augustin

Yuanmao Li

Paul Ecke

Jorge Nieto

A controller for controlling an electric or a fluidic valve drive. The controller includes a communications interface which is configured to output a current signal and convert drive-related measurement information into a current signal level within a current interval according to a communications protocol. The communications interface is further configured to convert at least two different items of device status information into different current signals levels outside of the current interval.

Controller having a communications interface, receiver and method for communication

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.

Communication device and system

Growing community of inventors

Ostfildern, Germany

Martin Wiesner