Abstract: An input/output device and a method for verifying an address of an input/output device are provided. The input/output device comprises an input and/or an output, a bus interface, a memory and a plurality of light-emitting components. The input and/or the output is configured for connecting field devices. The bus interface is configured for the indirect or direct connection of the field devices to a field bus. The memory is configured to store an address. The input/output device is configured to receive data directed to the address via the bus interface. The input/output device is further configured to display the address in coded form using the light-emitting components.

Abstract: A method for acknowledging an error message of an apparatus which transitions from an operating mode to a safe mode upon occurrence of an error. The method comprises receiving an acknowledgment request from the apparatus via a radio interface of a device, deriving data identifying the apparatus from the acknowledgment request by the device, and sending an acknowledgment message from the device to the apparatus via the radio interface.

Abstract: Illustrated is an I/O module which is configured for cyclically transmitting and receiving telegrams, wherein an area in which a data record can be transmitted in its entirety is provided in the telegrams, as well as an area capable of containing only a part of a data record, so that said data record is transmitted, distributed over several telegrams.