Method for operating an automation device

摘要

A method for operating an automation device having a CPU module that is configured to effect read or write access to local peripherals that are each provided with two interface modules that are each wired up in ring form to an input/output controller, wherein peripheral access operations are executed via one of the rings or via both rings, and wherein a redundancy manager that is provided for each ring is used to logically interrupt the respective ring in a normal mode and to initiate ring reconfiguration for this ring in the event of a physical ring interruption so as to provide a basis for allowing peripheral access operations during the actual period of this ring reconfiguration.