Energy meters - BasicLine Core functions of energy data acquisition The BasicLine devices measure power characteristics of single-phase or three-phase loads. For this purpose, basic values are provided to make the energy demand of a system transparent. The essential values are displayed directly on the unit and communicated via a network. Our devices are suitable either for mounting on top hat rails or in the front panel. By focusing on core functions, the BasicLine devices have a very good cost-benefit ratio. The devices are now also available with MID approval and Modbus RTU, Modbus TCP and MBUS communication modules.