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PBMaster is a software implementation of Profibus protocol (IEC 61158) compatible master node. The objective is to provide open implementation for education, experiments, enthusiasts and also to open way to its use in low-cost applications by using common hardware and open-source software. For documentation see http://pbmaster.sourceforge.net/ .
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GNU General Public License version 2.0 (GPLv2)Follow PBMaster
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Very useful. Thanks.
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Why the hell use a propriatary protocol? There are OpenSource and not Patent "protected" alternatives.Reply from PBMasterPosted 2021-01-19
Because European Union declared this protocol as standard for fileldbus. If you want RS-485 multi-master open-source protocol with distributed round robin media arbitration then use uLAN http://ulan.sourceforge.net/ which I have started at PiKRON company a which is used and extended in cooperation with Petr Smolik, other PBmaster project member. I have never used Profibus for my company (http://pikron.com/) applications, but when some integration with it is hard requirement by people interested in our notion control, robots, medical and or laboratory systems then I have thought that Profibus implementation can have value. And it could be enabler to play with third party PLCs and other stuff at university laboratories, which I consider as interesting.