Field unit and a method for operating an automation system
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United States of America Patent
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Aug 15, 2017
Grant Date -
Jun 18, 2015
app pub date -
Dec 24, 2012
filing date -
Dec 24, 2012
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Abstract
A field unit with a bus node which is designed for signal conversion between an external bus protocol and an internal bus protocol for communication with at least one function module, in such a way that a sequential transmission of data packets is made along an internal bus system and also including function modules which are designed for processing of data packets and for signal transmission with at least one downstream function component wherein the bus node is so designed for a differentiation of data packets of the higher-level control device that in the bus node a processing of non-safety-related data packets to the internal bus system and onwards transmission of safety-related data packets to the internal bus system is effected, and wherein at least one function module connected to the internal bus system is designed as a safety module for processing of safety-related data packets.
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