Abstract: A field device, which, as part of an automation system, carries out device-specific functions in the automation of the operational sequence of a system, detects and processes at least one measured variable from the system and has a communication interface for communication with the automation system. In order to make possible measurements signal filtering, the measured variable detected by the field device from the system is filtered in a signal filter, whose filter characteristic is variable and is matched to different predetermined filter characteristics as a function of event information from the operation sequence of the system obtained via the communication interface.

Abstract: An apparatus and a method for gravimetrically metering pourable or flowable material to be weighed are provided. A container holds the material to be weighed and a weighing device detects the weight of the container. A first actuator fills the container located on the weighing device with the material to be weighed and a second actuator empties the container or places the empty container on the weighing device. Further, a control device for generating control signals for the actuators is provided. A signal filter with a variable filter characteristic filters the weighing signal delivered by the weighing device. A filter matching device, controlled by the control device, matches the filter characteristic as a function of the control signals to various predetermined filter characteristics.

Abstract: A process automation system in which process devices (1-6) execute predetermined functions as part of the process automation and exchange data (23, 24) relevant to functions and/or devices with the process automation system. Some but not all of the data (23, 24) are exchanged in encrypted form.

Abstract: A process automation system in which process devices (1-6) execute predetermined functions as part of the process automation and exchange data (23, 24) relevant to functions and/or devices with the process automation system. Some but not all of the data (23, 24) are exchanged in encrypted form.