This is the newest open source project, and only the second one of which I’m aware. openPowerLink, a project of the Ethernet Powerlink Standardization Group. You can download master and slave information at this link.
Since the real-time protocol operates with standard on-board
Ethernet controllers, the download provides what the press release
calls “the only free-of-charge complete real-time Ethernet system.” SYS
TEC electronic, systems house for automation solutions and EPSG member,
has released its PowerLink solution under the BSD Open Source license.
The software package contains a sample implementation for Linux systems
which consists of the stacks for the Managing Node (master) and for the
Controlled Nodes (clients). The Open Source implementation reaches
cycle times up to 0.5 milliseconds while ensuring high synchronicity.
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