Patent · US Expired

Circuit arrangement for protected data transmission, particularly in ring-shaped bus systems

US7152188B1 · kind B1 · utility

9Cited by

9References

16Claims

0Family size

Assignee

PHOENIX CONTACT GMBH & CO. KG · DE

Inventors

Karsten Meyer-Gräfe · Olpe, DE
Thorsten Behr · Bad Boll, DE
Wolfram Kress · Siegburg, DE
Peter Wratil · Schwäbisch Hall, DE

Key dates

Filing date	Jun 5, 2000
Grant date	Dec 19, 2006
Priority date	—
Expiry date	Jun 13, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH04L69/40
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

The present circuit arrangement allows data, which are necessary for building up fault-tolerant structures, to be transmitted on standard ring-shaped bus systems. Its implementation requires a monitoring unit and input and output units which transmit or receive data for control. The circuit arrangement handles the task of detecting any faults which can become a danger for the process within a machine or plant. Due to its internal configuration, the circuit arrangement identifies any fault even before the detection of the fault and initiates a protected switch-off. In this arrangement, it is of no importance whether it is the external control unit or the bus system used which is responsible for the fault.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.