Sensor bus system for use in building, has field units with signal input acting on switchable low impedance path, where path is activated in associated data segment depending on signal input, and data part with data segment for field units

摘要

The system has field units (4) with address decoders for defining a data segment assigned to the respective field unit to a serial bus (2). A central unit (1) has an impulse generator acting on a current source, where the generator produces impulse tension with a synchronizing part and a data part. The data part has the data segment for each field unit, where each field unit has a signal input acting on a switchable low impedance path. The impedance path is activated in the associated data segment depending on the signal input. An independent claim is also included for a method for transmitting data to a sensor bus system.