Abstract: A field device for an industrial plant including at least one capacitive operating element by which an operating mode of the field device can be set, and a processor which is coupled to the at least one capacitive operating element. The processor is set up to implement an operation of the capacitive operating element only if a release based on an actuation pattern or an external release signal has been effected. Furthermore, a method of setting an operating mode of a field device is described.

Abstract: The invention relates to a method (100) for extending a communication technology based on point-to-point communication for operating a chain of secondary devices (300) at a common port (210) of a master device (200), where preferably the secondary devices (300) are designed as IO-Link devices, the master device (200) is designed as an IO-Link master and/or the communication technology is designed as IO-Link, in particular for an industrial plant, wherein the method (100) comprises: Providing (101) data (500) for processing by a currently executing device (301) in the chain, wherein a data block (510) of the data (500) comprises multiple data elements (520) assigned to the various devices (300) in the chain, Providing (102) at least one data element (530) of the data elements (520) which is provided at a predetermined position in the data block (510) and is therefore assigned to the currently executing device (301) in the chain, Performing (103) the processing of the data (500), wherein a shift, in particul