Field device, communication chip, and method for a web access to a field device

A method for accessing a field device which is connected to a field bus adapted for an Industrial Ethernet protocol, comprising:

• transmitting a request from a web browser to a web server implemented in the field device, said web browser being executed in an operation device connected to the field bus, wherein the communication between the web browser and the web server is effected via the hypertext transfer protocol;
• processing the received request in the field device by using a protocol stack of the Industrial Ethernet protocol, said protocol stack being stored in the field device, wherein the processing of the received request in the field device comprises forwarding the request from the web server, via the Industrial Ethernet protocol stack, to an application interface which is connected to a device application executed in the field device, and transmitting a response to the request from the application interface to the web server via the protocol stack, wherein the application interface comprises an individual logical interface associated with the web server and the web server acts as an Industrial Ethernet client towards the application interface;
• and
• transmitting response information from the web server to the web browser.