Authors:
Dragan Obradovic
1
;
Ruxandra Lupas Scheiterer
1
;
Chongning Na
1
;
Günter Steindl
2
and
Franz-Josef Goetz
2
Affiliations:
1
Siemens AG, Corporate Technology, Information and Communications, Germany
;
2
Siemens AG, Automation and Drives, Industrial Automation Systems; Siemens AG, Automation and Drives, Advanced Technologies and Standards, Germany
Keyword(s):
IEEE 1588, PTP, synchronization, syntonization, industrial automation network.
Related
Ontology
Subjects/Areas/Topics:
Industrial Networks and Automation
;
Informatics in Control, Automation and Robotics
;
Robotics and Automation
Abstract:
Synchronization of distributed clocks is a critical task in many real time applications over Ethernet. The Ethernet protocol, due to its non-deterministic nature, is not suitable for real-time applications with very strict synchronicity requirements. However, the limit is continuously being pushed outwards by current research. The Precision Time Protocol (PTP), delivered by the IEEE 1588 standard, provides high synchronization accuracy and has been adopted in many real time applications in the areas of industrial automation, measurement & control, communications etc. This paper will discuss several issues aimed at improving the synchronization performance.