The disclosure relates to a method for communication in process automation between a sensor and a connecting element connectable to the sensor, wherein the sensor is configured for acquisition of a measured variable of the process automation and for transmission of a value that is dependent upon the measured variable value to the connecting element, wherein the connecting element for transmission of the value dependent upon the measured variable to a parent unit is configured via a first protocol. The method is characterized in that communication between the sensor and the connecting element takes place without the knowledge of the parent unit using a second protocol, the second protocol being independent of the first protocol.