A central device (1) of building systems engineering, with at least one transceiver (E1, E2, E3) for the wireless exchange of data (D1, D2, D3) with a number of devices (G1, G2, G3) of the building system technology, has a processing unit ( 2), which converts (in an outer processing area 3) data (D1, D2, D3) with different transmission protocols (DP1, DP2, DP3) (by means of their associated drivers T1, T2, T3) (in a uniform data format DF) and in the outer processing area (3) via an internal standard interface (TS) inner processing area (4) connected to the devices (G1, G2, G3) identifiable information (D1, D2, D3) in the data format (DF) processed.
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