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Introduction
Precise time information is especially important for distributed systems in automation technology. With the Precision Time Protocol (PTP) described in IEEE 1588, it is possible to synchronise distributed clocks with an accuracy of less than 1 microsecond via Ethernet networks for the very first time. The demands on the local clocks and the network and computing capacity are relatively low.
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Introduction Why Time Synchronisation? Previous Solutions PTP Applications Functional Principle of PTP Implementation of PTP Results Summary Author Training