Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Heiko Kresse0
Ralf Schaeffer0
Andreas Stelter0
Date of Patent
November 4, 2008
0Patent Application Number
115169510
Date Filed
September 7, 2006
0Patent Primary Examiner
Patent abstract
An automation device is disclosed, in which a multiplicity of physically distributed functional units communicate with each other by means of a common transmission protocol. The device has a microcontroller (110), which has a group of associated input/output connections which are connected to a resistor network. The resistances of the resistors follow a sequence, the resistance respectively being doubled from the less significant to the next most significant bit. Each input/output connection is actively switched to the associated logic level in order to output a first logic state and is connected as a high-impedance input in order to output the inverse, second logic state.
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