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Method and device for establishing the network topology of a bus system

  • US 20040098514A1
  • Filed: 03/28/2003
  • Published: 05/20/2004
  • Est. Priority Date: 09/29/2000
  • Status: Active Grant
First Claim
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1. A method for determining the network topology of a bus system (1) having a number of bus subscribers (Tn), which are arranged on mutually connected bus segments (Bn) of a bus line (2), with each bus subscriber (Tn) being sent an initiating measurement message (SRD) which is responded to by a diagnosis repeater (3), which is provided with a measurement device (4) for reflection measurement and connects a number of bus segments (Bn), with a data message (DT) which has a segment identifier (SK), and is responded to by the other bus subscribers (Tn) with a response message (AS, RS), with the diagnosis repeater (3) sending a measurement signal (MS) to the responding bus subscriber (Tn) which reflects this signal, and with the distance (ln) between the responding bus subscriber (Tn) and the diagnosis repeater (3) being determined from the time interval between the transmission of the measurement signal (MS) and the arrival of the reflection signal (RS).

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