Street construction machine with measuring system and measuring method

摘要

The system (1) has a control unit (2) i.e. external operating station, a field bus (6) e.g. controller area network bus, and a set of field devices (3-5) e.g. actuator, that is operationally connected to the control unit using the bus, where one of the field devices has a voltage input and a voltage output. The field device is arranged to generate a voltage output signal that differs by an offset voltage. The voltage output signal is generated such that a different exclusive bus address is assigned to another field device based on the voltage output signal output by the former field device. The voltage input and the voltage output are respective analog voltage input and output with a value range of 0 to 20 volts. The offset voltage is 0.5 volts. An independent claim is also included for a method for addressing a set of field devices in a measuring system of a road construction machine.