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  1. Dan Clark
  2. PLCnext Engineer
  3. Friday, 22 November 2019

Hello,

Is it possible to be an OPC UA client and receive tags from an OPC UA server? I saw there previously was a library (that is no longer available), is there a new solution for this? I have a customer that is using a Kepware OPC UA server and wants to import those tags into the PLCnext. 

Also would it be possible to act as an OPC UA server and an OPC UA client at the same time? The Kepware device can act as a server and client simultaneously, and I am curious if the PLCnext has this capability. 

Thanks!

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Martin PLCnext Team Accepted Answer Pending Moderation
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Hi Daniel,

Is it possible to be an OPC UA client and receive tags from an OPC UA server?

Yes, this is possible ... in theory.

I saw there previously was a library (that is no longer available), is there a new solution for this?

Not from Phoenix Contact, as far as I am aware. At the moment you would need to find and install your own OPC UA client. There seems to be a few open-source implementations that you could try ... here's the first hit from my google search:

https://github.com/open62541/open62541/wiki/List-of-Open-Source-OPC-UA-Implementations

Also would it be possible to act as an OPC UA server and an OPC UA client at the same time?

Absolutely, yes. These would be two independent processes, and there is no reason why they couldn't run together on the same device.

Martin.

 

 

Phoenix Contact Electronics Headquarters - PLCnext Runtime Product Management and Support
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