Communication system and method for isochronous data transmission in real time

The invention relates to a communication system (5) which has a PROFINET IRT system (40) with first communication devices (50, 60) for isochronous transmission. In order to also allow a conventional standard Ethernet communication device (10) to transmit real-time-critical data via the PROFINET IRT...

Full description

Saved in:
Bibliographic Details
Main Authors SCHRIEGEL SEBASTIAN, LESSMANN GUNNAR, PIEPER CARSTEN, BREIT EUGEN, SCHUMACHER MARKUS
Format Patent
LanguageChinese
English
Published 01.05.2013
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
Online AccessGet full text

Cover

More Information
Summary:The invention relates to a communication system (5) which has a PROFINET IRT system (40) with first communication devices (50, 60) for isochronous transmission. In order to also allow a conventional standard Ethernet communication device (10) to transmit real-time-critical data via the PROFINET IRT system (40), a specific IRT bridge device (30) is provided. The bridge device (30) has a timer (34), which is synchronized with the timers (57, 67) of the first communication devices (50, 60) in time. Furthermore, a device (31) is provided for evaluation of the transmission time of a real-time-critical data message which is received from the communication device (10), and a control device (33) is provided which controls the passing on of the associated real-time-critical data message to at least one second communication device (50, 60) depending on the evaluated transmission time.
Bibliography:Application Number: CN201180034777