Abstract: A method of communication between a remote computer and Heating, Ventilation and Air Conditioning HVAC devices includes communicatively connecting the HVAC devices to a communication bus via a bus communication interface of each HVAC device, selecting one of the HVAC devices having a remote communication interface as a gateway device, communicatively connecting the remote computer to the remote communication interface of the gateway device, identifying, by the HVAC gateway device, one or more of the HVAC devices connected to the communication bus by retrieving respective identification data of the HVAC devices via the bus communication interface, retrieving, by the gateway device, one or more device profiles corresponding to the identification data of the one or more identified HVAC devices, and enabling, by the gateway device using the retrieved one or more device profiles, data communication between the one or more identified HVAC devices and the remote computer.

Abstract: A method of commissioning physical HVAC devices for an HVAC application including communicatively connecting physical HVAC devices to a communication bus, one physical HVAC device being selected as master HVAC device, identifying the physical HVAC devices connected to the communication bus, determining device type(s) of the physical HVAC devices, receiving an application model including a device list listing virtual HVAC devices of the HVAC application, generating, by the master HVAC device, a mapping of the physical HVAC devices to the virtual HVAC devices using the device type(s) of the physical HVAC devices and of the virtual HVAC devices.

Abstract: A method of manufacturing an HVAC field device (1) from a plurality of HVAC device blocks (10, 20.1-n), comprising the steps of providing a base HVAC device block (10); providing one or more add-on HVAC device block(s) (20.1-n) and stacking the base HVAC device block (10) and the one or more add-on HVAC device block(s) (10, 20.1-n), thereby mechanically connecting a connection interface (15A, 25A.1-n) of the first type to a connection interface (25B.1-n) of the second type of adjacent HVAC device blocks (10, 20.1-n).

Abstract: A base HVAC device block (10) comprising a housing (11); an HVAC functional device (M/S); an extension interface (16A); an external electrical interface (18) for the transmission of electrical power and data signal(s); and an electronic circuit (12) connected with the HVAC functional device (M/S). In a first configuration, the base HVAC device block (10) is configured to connect the external electrical interface (18) with the electronic circuit (12) for transmission of data signal(s) and thereby provide HVAC functionality(s) of a first category. In a second configuration, the base HVAC device block (10) is configured to route the transmission of data signal(s) through an add-on electronic circuit (22) of an add-on HVAC device block (20) attached to the base HVAC device block (10) via an add-on interface (26B) of the add-on HVAC device block (20) to thereby provide HVAC functionality(s) of a second category.

Abstract: The invention relates to a rail vehicle (1) comprising a first passenger car and a powerpack (2) having a longitudinal axis, the powerpack (2) and the passenger car being coupled together. The powerpack (2) comprises at least one fuel cell (20) and at least one fuel tank (21) having a fuel tank valve (33). The powerpack (2) is mounted on at least one bogie. The rail vehicle (1) comprises at least one driven bogie which can be supplied with electrical energy from the fuel cell (20).

Abstract: An apparatus for cutting up biological sample material, including a sample container, a rotary drive device separate from the sample container, and a shaft rotatably arranged in the sample container, wherein the shaft has a laterally projecting cutting device in the region of a working end and has a coupling piece in the region of a coupling end, said coupling piece being accessible from outside and being designed for coupling engagement with a coupling counterpart of the rotary drive device, wherein the shaft (14) is arranged with lateral guidance and in an axially displaceable manner in the sample container (10), the coupling piece (19) and the coupling counterpart (21) are designed for producing coupling engagement which is positive-locking in the direction of rotation (23) and permits an axial displacement, and the cutting device (16) is designed in a propeller shape in such a way that, during rotation of the shaft (14) in the working direction, it exerts a propulsive force on the latter in the direction

Abstract: An apparatus for cutting up biological sample material, including a sample container, a rotary drive device separate from the sample container, and a shaft rotatably arranged in the sample container, wherein the shaft has a laterally projecting cutting device in the region of a working end and has a coupling piece in the region of a coupling end, said coupling piece being accessible from outside and being designed for coupling engagement with a coupling counterpart of the rotary drive device, wherein the shaft (14) is arranged with lateral guidance and in an axially displaceable manner in the sample container (10), the coupling piece (19) and the coupling counterpart (21) are designed for producing coupling engagement which is positive-locking in the direction of rotation (23) and permits an axial displacement, and the cutting device (16) is designed in a propeller shape in such a way that, during rotation of the shaft (14) in the working direction, it exerts a propulsive force on the latter in the direction

Abstract: A device for the visual analysis of test strips, each having at least one delimited area in which, after contact with a sample to be examined, a visually detectable signal can be generated, with the device having a positioning device including a seat for at least one test strip or at least one test strip unit consisting of a plurality of test strips combined in a defined spatial arrangement, the device further including an image generating device which graphically records at least one of the delimited areas and transmits the recording result to an image analysis device, with the image analysis device qualitatively and/or quantitatively analyzing the visually detectable signals for each test strip.