Experimental Physics and
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Hi Patrick,
On Sat, May 13, 2017 at 2:40 AM, Thomas, Patrick <[email protected]> wrote:
Well ... depends on your definition of "use". The client library by Unified Automation is licensed in a way that allows redistribution of applications as binaries (plus shared libraries) royalty-free. However, header files and documentation are explicitly under an NDA. In other words: using an IOC with that support does not require a purchase, however, creating that IOC does require a license. If I remember correctly, the upstream author Bernhard Kuner intends to make a statically linked IOC available.
Have a look at https://github.com/bkuner/freeOpcUaEpicsDevSup, which uses the free OPC UA client library available at https://github.com/FreeOpcUa/freeopcua. However, Bernhard did not find the free client stable and robust enough for production use, and switched to the commercially available client mentioned above. Again: if someone with a license provides you with a binary, you can use it without restrictions. Also: Unified Automation charges less than 4000 USD for a source code developer license on the Linux platform, which might be affordable in the end. Cheers, ~Ralph
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ANJ, 21 Dec 2017 |
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