If you are interested in something like like this, the originators of Industry 4.0 (the German government in 2011) [0] has backed a number of actually free/open

If you are interested in something like like this, the originators of Industry 4.0 (the German government in 2011) [0] has backed a number of actually free/open technologies from low-level EtherCAT protocol [1] to higher level OPC (Open Platform Connector) [2] for defining high level process interactions, and soon there will be open standards for digital twins. [3] But this advertorial is just another expensive ISO "standards document" to purchase, extending another proprietary technology (S-95), as evidenced by the lack of hyperlinks to documents or repos. If you want to purchase the two new chapters, it will cost you $705.16 [4,5] - there's no bundle price for all of the chapters. [0] https://en.wikipedia.org/wiki/Fourth_Industrial_Revolution https://en.wikipedia.org/wiki/Fourth_Industrial_Revolution [1] https://www.ethercat.org/en/technology.html https://www.ethercat.org/en/technology.html [2] https://opcfoundation.org/about/what-is-opc/ https://opcfoundation.org/about/what-is-opc/ [3] https://en.wikipedia.org/wiki/Digital_twin https://en.wikipedia.org/wiki/Digital_twin [4] https://webstore.iec.ch/publication/25465 https://webstore.iec.ch/publication/25465 [5] https://webstore.iec.ch/publication/59706 https://webstore.iec.ch/publication/59706