There are a lot of solutions already "bridging" old PLCs with OPC-UA.
For example, I know some folks here at work use the KEPware KEPServer https://www.kepware.com/en-us/ which roughly does what you described for Siemens (runs on windows, though, don't get me started). It sure would be nice to have something OSS, though :-D Pier On Fri, Oct 12, 2018 at 1:10 PM Julian Feinauer < [email protected]> wrote: > Hey all, > > I visited the Motec Fair for industrial automation and had a lot of > interesting discussions in the context of plc4x. > Timm and his colleagues at the Hochschule Esslingen developed a very > interesting “I4.0” solution which is currently solely based on OPC UA. > We then discussed about something which is so obvious that I’m pretty sure > that anyone else has already thought about. > > The idea was to have a “plc4x-opc-ua-bridge”, i.e., a small OPC UA Server > application which has a configuration that maps between an OPC UA tree and > plc4x fields. > This is a very interesting “retro-fit” from my perspective (and I think > there are several hardware applications for that also) but would be really > cool in an OSS Stack. > For the OPC UA Server Eclipse Milo should bring all that’s needed. > > What are your thoughts on that? > Ideally, we could do this together with the Hochschule and some students > could support with the implementation. > > Best > Julian >
