Siemens Aktiengesellschaft

Siemens Mobility Gmbh

Frank Renpenning

Matthias Seifert

Juergen Kott

Jürgen Kott

An arrangement has a technical system, in particular a safety-related system, and a control device which controls the system and can change the technical state of the system by use of control commands. An interface device to be connected to the control device is provided. The interface device forms an external interface for connection to an external remote query device. The interface device has a checking device which is configured in such a manner that it checks a received remote query signal for the presence of a query command stored as permissible in the interface device. In the event of permissibility, the interface device forwards only the query command to the control device and blocks the forwarding of the remote query signal as such or all other control commands which are not query commands stored as permissible.

Arrangement having a safety-related system and method for the protected operation thereof by means of a remote query

An assembly checks at least one firewall device and a method protects at least one data receiver. In the method, permissible and non-permissible data traffic is differentiated in data traffic in the direction of the data receiver using specific rules. Non-permissible data traffic is blocked, and permissible data traffic is allowed through. In order to check the function of the firewall device, the data traffic which has been allowed through is interrupted if the data traffic which has been allowed through has non-permissible data traffic.

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Braunschweig, Germany

Frank Renpenning