Hi Julian, yes I have plans to work on this as soon as the API changes are finalized, the release is out and we're back on track with the existing drivers. Right now the test-coverage dropped dramatically and we need to get that up again. Also we do need to tweak some new findings of SonarQube.
The path I would suggest to add OPC-UA support would be to go a similar path as with EtherNet/IP and Modbus. As Kevin Heron, the author of the EtherNet/IP and Modbus drivers, is also the lead developer of the Eclipse Milo project [1]. The code is licensed in a way that it's safe to use in our project and he writes Drivers the same way we do. So this is too based on Netty and should allow pretty easy integration into PLC4X. But I wouldn't object, if someone stepped up and wanted to implement those parts we are planning on using. Chris [1] https://github.com/eclipse/milo Am 18.09.18, 10:20 schrieb "Julian Feinauer" <[email protected]>: Hey, while typing the lines „not planning to implement a driver in the near future“ in my last mail it struck me that we have (possible) customers which (partially) already have OPC UA feasible devices. From my perspective I would like to use OPC UA through the plc4j interface as it does not modify the stack at all but its just a runtime dependency. As I’m sure you already thought about that, what are your thoughts on that? I did a short research and there are several open source projects which could be used as base or even decide just to do a wrapper, if the license and all fits well enough. Best Julian
