DEVICE AND METHOD FOR CONTROLLING AN AUTOMATED SYSTEM

An apparatus for controlling an automated installation has a first controller and a second controller that are connected to one another via a communication network. The first and second controllers each have a local clock and execute control tasks. The first and second controllers each further have...

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Bibliographische Detailangaben
Hauptverfasser:	Sperrer, Reinhard, Bauknecht, Jochen, Dr. Wöhrle, Stefan, Klamser, Oliver
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FUNCTIONAL ELEMENTS OF SUCH SYSTEMS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS MULTIPLEX COMMUNICATION PHYSICS REGULATING TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	An apparatus for controlling an automated installation has a first controller and a second controller that are connected to one another via a communication network. The first and second controllers each have a local clock and execute control tasks. The first and second controllers each further have a synchronization service that is used to synchronize the respective local clocks to a common reference clock. A timer repeatedly sends a trigger message to the first and second controllers. Each of the two controllers, on receiving the trigger message, determines a local time. The controllers interchange the respective local time and each compute a difference between their own local time and the local time obtained from the other controller. On the basis of the difference, each of the two controllers controls a local actuator.