Process for signal output by AS-I transmitters in As-i units of an AS-I bus system

摘要

The invention relates to a method for signal output by AS-i transmitters, which are contained in AS-i units (actuator-sensor interface units) of an AS-i bus system, with at least one AS-i bus system for the AS-i bus system. Master module and an AS-i slave module belong. The solution to the problem according to the invention of realizing an AS-i transmitter that prevents the potential risk of signal distortion that is present when the signal is output, without operating the slave electronics at great expense and thus greatly reducing the costs, is achieved in that an output signal of a transmitter control associated with a respective AS-i module for controlling a transmitter matching circuit of an AS-i transmitter also associated with this AS-i module is provided such that its signal level corresponds to the applied potential of the actuator / Sensor / AS-i module connection of the actuator / sensor are related. The actuator / sensor power supply serves as a power supply for the transmitter matching circuit, the receiver and the transmitter control of the AS-i module. As a result, the transmitter matching circuit controls, via its driving electrical output signal, a connected controlled transmitter current source, which is also part of the controlled transmitter current source, which is also part of the AS-i transmitter, in such a way that it emits a transmitter output current that is independent from the adjacent ...