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Home » Eclipse Projects » 4DIAC - Framework for Distributed Industrial Automation and Control » OPC UA in 4DiAC
OPC UA in 4DiAC [message #1772151] Wed, 06 September 2017 07:38 Go to next message
Fei  Yin is currently offline Fei YinFriend
Messages: 36
Registered: July 2017
Member
Hello, everyone,

i want to ask when the 4diac supports the Variable als Nodeclass because now the 4DIAC only supports the Mehod Call to read/write Data.

Regards
Fei Yin
Re: OPC UA in 4DiAC [message #1772216 is a reply to message #1772151] Wed, 06 September 2017 19:42 Go to previous messageGo to next message
Alois Zoitl is currently offline Alois ZoitlFriend
Messages: 644
Registered: January 2014
Senior Member
Hi,

this is already implemented in a first version. Please have a look in the updated OPC UA docs on how to use it. I hope this works for you.

Cheers,
Alois
Re: OPC UA in 4DiAC [message #1772223 is a reply to message #1772216] Wed, 06 September 2017 21:15 Go to previous messageGo to next message
Fei  Yin is currently offline Fei YinFriend
Messages: 36
Registered: July 2017
Member
thank you, and now the 4diac client or subscribe/publish supports reading and writing from a variable node of OPC UA Server of other devices?
Re: OPC UA in 4DiAC [message #1772279 is a reply to message #1772223] Thu, 07 September 2017 12:44 Go to previous message
Alois Zoitl is currently offline Alois ZoitlFriend
Messages: 644
Registered: January 2014
Senior Member
As far as I understand yes. with publish you can write, currently you need Client to read. As soon as subscriptions are supported by the stack we use also a subscriber should be able to subscribe to a remote value node.
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