Patent ID: 11870771
Assignee: nan
Field: Digital communication (Electrical engineering)
Classification: CPC G  H  Y | IPC H

Claim 12:
13. The system according to claim 12, wherein the field device and the authentication server are designed to carry out a method including the steps of:
storing an individual access code in the end device;
transmitting the access code from the end device to the field device;
connecting the field device to an authentication server via a server communication link;
using the field device to transmit the access code or an access code derived from the access code to the authentication server;
storing authentication data on the authentication server, on the basis of which the authenticity of the access code is checked on the authentication server
transmitting the resulting authentication result from the authentication server via the server communication link to the field device; and
depending on the authentication result transmitted to the field device, making resources of the field device available to the end device.