Phoenix Contact Gmbh & Co.

Phoenix Contact Gmbh & C. Kg

Innotec Corporation

Lenze Automation Gmbh

Peter Wratil

Thorsten Behr

Karsten Meyer-Gräfe

Andreas Tolksdorf

Manfred Tinebor

Wolfram Kress

Martin Ehlich

Torsten Wedemeyer

Jan Friedrichs

Bernhard Bock

Peter Langel

Bernd Vater

Thomas Rosenbusch

A 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.

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

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.

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Rosengarten, Germany

Peter Wratil