Automation device

• US 20070150625A1
• Filed: 08/23/2006
• Published: 06/28/2007
• Est. Priority Date: 08/31/2005
• Status: Active Grant

• Current Assignee: ABB Patent GmbH (ABB Limited)
• Original Assignee: Andreas Stelter, Heiko Kresse, Ralf Schaeffer
• Inventors: Schaeffer, Ralf, Kresse, Heiko, Stelter, Andreas
• Granted Patent: US 9,537,692 B2
• Time in Patent Office: Days
• US Class Current: 710/62
• CPC Class Codes: H04L 27/122 using digital generation of carrier signals digital function generators G06F1/02, H04L17/10; generating pulses having stepped portions using digital techniques H03K4/026

Abstract

The invention relates to an automation device, in which a plurality of spatially distributed functional units communicate with one another by means of a common transmission protocol. The device has a microcontroller (110) which has at least one associated clock generator (120) and a memory unit (150) and which is connected at least to a data source (140), which is designed to output a data byte stream to be transmitted. A first program for conversion of a data byte stream to be transmitted to a sequence of sample values of an adequate frequency-modulated line signal, and a second program for identification of a frequency-modulated line signal and for its sequential conversion to a received data byte stream are stored in the memory unit (150), with these programs being associated with the microcontroller (110). The first and the second program can be run alternately.

Claims

1. An automation device, in which a plurality of spatially distributed functional units communicate with one another by means of a common transmission protocol, having a microcontroller which has at least one associated clock generator and a memory unit and which is connected at least to a data source, which is designed to emit a data byte stream to be transmitted, and to a data sink, in order to accept a received data byte stream,

wherein

the microcontroller has a first associated program for conversion of a data byte stream to be transmitted to a sequence of sample values of an adequate frequency-modulated line signal, and the first program is stored in the memory unit,

the microcontroller has a second associated program for identification of a frequency-modulated line signal and for its sequential conversion to a received data byte stream, and the second program is stored in the memory unit, and

the first and the second program can be run alternately.

2. The automation device as claimed in claim 1,

wherein

the running of the first and of the second program can be initiated in each case by an interrupt request.

3. The automation device as claimed in claim 2,

wherein

the interrupt request is time-controlled.

4. The automation device as claimed in claim 3,

wherein

the interrupt request is periodic.