Monitoring device for detecting an incorrect addressing of a slave in a fieldbus-system

摘要

The control device has voltage detection unit (6) with an impedance circuit (7) and an evaluation unit (8).The voltage detection unit has a bus connection (9) for the connection to bus. The impedance of the impedance circuit is adapted to the impedance (12) of the power supply unit (3). The evaluation unit determines current with the help of the impedance circuit. Independent claims are also included for the following: (1) a method for recognition of condition of a bus, particularly for recognition of an incorrect addressing of slaves in a field bus system (2) an actuator sensor interface system.