Method for starting up or servicing an automation field device

A method for starting up or servicing a field device for determining or monitoring a physical or chemical process variable of a medium in an automation process, comprising:

• reading unique identification information assigned to the field device via a static code using a reading and/or operating tool;
• generating in the field device and displaying on a display of the field device a dynamic code containing diagnostic information that is stored in the field device and that relates to at least one current and/or past event assigned to the field device;
• optically reading the diagnostic information from the dynamic code using the reading and/or operating tool, wherein the optical reading of the diagnostic information is a unidirectional transmission of information from the field device to the reading and/or operating tool;
• transmitting the identification and diagnostic information from the reading and/or operating tool to a cloud-based service platform;
• transmitting device and/or application-specific information for remedying the event characterized by the diagnostic information from the cloud-based service platform to the reading and/or operating tool;
• and
• remedying the event or effects of the event using the transmitted device-specific and/or application-specific information.